diff options
111 files changed, 1312 insertions, 965 deletions
@@ -3786,14 +3786,11 @@ S: The Netherlands N: David Woodhouse E: dwmw2@infradead.org -D: ARCnet stuff, Applicom board driver, SO_BINDTODEVICE, -D: some Alpha platform porting from 2.0, Memory Technology Devices, -D: Acquire watchdog timer, PC speaker driver maintenance, +D: JFFS2 file system, Memory Technology Device subsystem, D: various other stuff that annoyed me by not working. -S: c/o Red Hat Engineering -S: Rustat House -S: 60 Clifton Road -S: Cambridge. CB1 7EG +S: c/o Intel Corporation +S: Pipers Way +S: Swindon. SN3 1RJ S: England N: Chris Wright diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt index b462bb14954..52441694fe0 100644 --- a/Documentation/DMA-API.txt +++ b/Documentation/DMA-API.txt @@ -170,16 +170,15 @@ Returns: 0 if successful and a negative error if not. u64 dma_get_required_mask(struct device *dev) -After setting the mask with dma_set_mask(), this API returns the -actual mask (within that already set) that the platform actually -requires to operate efficiently. Usually this means the returned mask +This API returns the mask that the platform requires to +operate efficiently. Usually this means the returned mask is the minimum required to cover all of memory. Examining the required mask gives drivers with variable descriptor sizes the opportunity to use smaller descriptors as necessary. Requesting the required mask does not alter the current mask. If you -wish to take advantage of it, you should issue another dma_set_mask() -call to lower the mask again. +wish to take advantage of it, you should issue a dma_set_mask() +call to set the mask to the value returned. Part Id - Streaming DMA mappings diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c index cc49400b4af..7ea231172c8 100644 --- a/Documentation/accounting/getdelays.c +++ b/Documentation/accounting/getdelays.c @@ -392,6 +392,10 @@ int main(int argc, char *argv[]) goto err; } } + if (!maskset && !tid && !containerset) { + usage(); + goto err; + } do { int i; diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt index e33ee74eee7..d9e5d6f41b9 100644 --- a/Documentation/cgroups/cgroups.txt +++ b/Documentation/cgroups/cgroups.txt @@ -1,7 +1,8 @@ CGROUPS ------- -Written by Paul Menage <menage@google.com> based on Documentation/cpusets.txt +Written by Paul Menage <menage@google.com> based on +Documentation/cgroups/cpusets.txt Original copyright statements from cpusets.txt: Portions Copyright (C) 2004 BULL SA. @@ -68,7 +69,7 @@ On their own, the only use for cgroups is for simple job tracking. The intention is that other subsystems hook into the generic cgroup support to provide new attributes for cgroups, such as accounting/limiting the resources which processes in a cgroup can -access. For example, cpusets (see Documentation/cpusets.txt) allows +access. For example, cpusets (see Documentation/cgroups/cpusets.txt) allows you to associate a set of CPUs and a set of memory nodes with the tasks in each cgroup. diff --git a/Documentation/controllers/cpuacct.txt b/Documentation/cgroups/cpuacct.txt index bb775fbe43d..bb775fbe43d 100644 --- a/Documentation/controllers/cpuacct.txt +++ b/Documentation/cgroups/cpuacct.txt diff --git a/Documentation/cpusets.txt b/Documentation/cgroups/cpusets.txt index 5c86c258c79..5c86c258c79 100644 --- a/Documentation/cpusets.txt +++ b/Documentation/cgroups/cpusets.txt diff --git a/Documentation/controllers/devices.txt b/Documentation/cgroups/devices.txt index 7cc6e6a6067..7cc6e6a6067 100644 --- a/Documentation/controllers/devices.txt +++ b/Documentation/cgroups/devices.txt diff --git a/Documentation/controllers/memcg_test.txt b/Documentation/cgroups/memcg_test.txt index 08d4d3ea0d7..19533f93b7a 100644 --- a/Documentation/controllers/memcg_test.txt +++ b/Documentation/cgroups/memcg_test.txt @@ -6,7 +6,7 @@ Because VM is getting complex (one of reasons is memcg...), memcg's behavior is complex. This is a document for memcg's internal behavior. Please note that implementation details can be changed. -(*) Topics on API should be in Documentation/controllers/memory.txt) +(*) Topics on API should be in Documentation/cgroups/memory.txt) 0. How to record usage ? 2 objects are used. diff --git a/Documentation/controllers/memory.txt b/Documentation/cgroups/memory.txt index e1501964df1..e1501964df1 100644 --- a/Documentation/controllers/memory.txt +++ b/Documentation/cgroups/memory.txt diff --git a/Documentation/controllers/resource_counter.txt b/Documentation/cgroups/resource_counter.txt index f196ac1d7d2..f196ac1d7d2 100644 --- a/Documentation/controllers/resource_counter.txt +++ b/Documentation/cgroups/resource_counter.txt diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index d105eb45282..bbebc3a43ac 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -1371,292 +1371,8 @@ auto_msgmni default value is 1. 2.4 /proc/sys/vm - The virtual memory subsystem ----------------------------------------------- -The files in this directory can be used to tune the operation of the virtual -memory (VM) subsystem of the Linux kernel. - -vfs_cache_pressure ------------------- - -Controls the tendency of the kernel to reclaim the memory which is used for -caching of directory and inode objects. - -At the default value of vfs_cache_pressure=100 the kernel will attempt to -reclaim dentries and inodes at a "fair" rate with respect to pagecache and -swapcache reclaim. Decreasing vfs_cache_pressure causes the kernel to prefer -to retain dentry and inode caches. Increasing vfs_cache_pressure beyond 100 -causes the kernel to prefer to reclaim dentries and inodes. - -dirty_background_bytes ----------------------- - -Contains the amount of dirty memory at which the pdflush background writeback -daemon will start writeback. - -If dirty_background_bytes is written, dirty_background_ratio becomes a function -of its value (dirty_background_bytes / the amount of dirtyable system memory). - -dirty_background_ratio ----------------------- - -Contains, as a percentage of the dirtyable system memory (free pages + mapped -pages + file cache, not including locked pages and HugePages), the number of -pages at which the pdflush background writeback daemon will start writing out -dirty data. - -If dirty_background_ratio is written, dirty_background_bytes becomes a function -of its value (dirty_background_ratio * the amount of dirtyable system memory). - -dirty_bytes ------------ - -Contains the amount of dirty memory at which a process generating disk writes -will itself start writeback. - -If dirty_bytes is written, dirty_ratio becomes a function of its value -(dirty_bytes / the amount of dirtyable system memory). - -dirty_ratio ------------ - -Contains, as a percentage of the dirtyable system memory (free pages + mapped -pages + file cache, not including locked pages and HugePages), the number of -pages at which a process which is generating disk writes will itself start -writing out dirty data. - -If dirty_ratio is written, dirty_bytes becomes a function of its value -(dirty_ratio * the amount of dirtyable system memory). - -dirty_writeback_centisecs -------------------------- - -The pdflush writeback daemons will periodically wake up and write `old' data -out to disk. This tunable expresses the interval between those wakeups, in -100'ths of a second. - -Setting this to zero disables periodic writeback altogether. - -dirty_expire_centisecs ----------------------- - -This tunable is used to define when dirty data is old enough to be eligible -for writeout by the pdflush daemons. It is expressed in 100'ths of a second. -Data which has been dirty in-memory for longer than this interval will be -written out next time a pdflush daemon wakes up. - -highmem_is_dirtyable --------------------- - -Only present if CONFIG_HIGHMEM is set. - -This defaults to 0 (false), meaning that the ratios set above are calculated -as a percentage of lowmem only. This protects against excessive scanning -in page reclaim, swapping and general VM distress. - -Setting this to 1 can be useful on 32 bit machines where you want to make -random changes within an MMAPed file that is larger than your available -lowmem without causing large quantities of random IO. Is is safe if the -behavior of all programs running on the machine is known and memory will -not be otherwise stressed. - -legacy_va_layout ----------------- - -If non-zero, this sysctl disables the new 32-bit mmap mmap layout - the kernel -will use the legacy (2.4) layout for all processes. - -lowmem_reserve_ratio ---------------------- - -For some specialised workloads on highmem machines it is dangerous for -the kernel to allow process memory to be allocated from the "lowmem" -zone. This is because that memory could then be pinned via the mlock() -system call, or by unavailability of swapspace. - -And on large highmem machines this lack of reclaimable lowmem memory -can be fatal. - -So the Linux page allocator has a mechanism which prevents allocations -which _could_ use highmem from using too much lowmem. This means that -a certain amount of lowmem is defended from the possibility of being -captured into pinned user memory. - -(The same argument applies to the old 16 megabyte ISA DMA region. This -mechanism will also defend that region from allocations which could use -highmem or lowmem). - -The `lowmem_reserve_ratio' tunable determines how aggressive the kernel is -in defending these lower zones. - -If you have a machine which uses highmem or ISA DMA and your -applications are using mlock(), or if you are running with no swap then -you probably should change the lowmem_reserve_ratio setting. - -The lowmem_reserve_ratio is an array. You can see them by reading this file. -- -% cat /proc/sys/vm/lowmem_reserve_ratio -256 256 32 -- -Note: # of this elements is one fewer than number of zones. Because the highest - zone's value is not necessary for following calculation. - -But, these values are not used directly. The kernel calculates # of protection -pages for each zones from them. These are shown as array of protection pages -in /proc/zoneinfo like followings. (This is an example of x86-64 box). -Each zone has an array of protection pages like this. - -- -Node 0, zone DMA - pages free 1355 - min 3 - low 3 - high 4 - : - : - numa_other 0 - protection: (0, 2004, 2004, 2004) - ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - pagesets - cpu: 0 pcp: 0 - : -- -These protections are added to score to judge whether this zone should be used -for page allocation or should be reclaimed. - -In this example, if normal pages (index=2) are required to this DMA zone and -pages_high is used for watermark, the kernel judges this zone should not be -used because pages_free(1355) is smaller than watermark + protection[2] -(4 + 2004 = 2008). If this protection value is 0, this zone would be used for -normal page requirement. If requirement is DMA zone(index=0), protection[0] -(=0) is used. - -zone[i]'s protection[j] is calculated by following expression. - -(i < j): - zone[i]->protection[j] - = (total sums of present_pages from zone[i+1] to zone[j] on the node) - / lowmem_reserve_ratio[i]; -(i = j): - (should not be protected. = 0; -(i > j): - (not necessary, but looks 0) - -The default values of lowmem_reserve_ratio[i] are - 256 (if zone[i] means DMA or DMA32 zone) - 32 (others). -As above expression, they are reciprocal number of ratio. -256 means 1/256. # of protection pages becomes about "0.39%" of total present -pages of higher zones on the node. - -If you would like to protect more pages, smaller values are effective. -The minimum value is 1 (1/1 -> 100%). - -page-cluster ------------- - -page-cluster controls the number of pages which are written to swap in -a single attempt. The swap I/O size. - -It is a logarithmic value - setting it to zero means "1 page", setting -it to 1 means "2 pages", setting it to 2 means "4 pages", etc. - -The default value is three (eight pages at a time). There may be some -small benefits in tuning this to a different value if your workload is -swap-intensive. - -overcommit_memory ------------------ - -Controls overcommit of system memory, possibly allowing processes -to allocate (but not use) more memory than is actually available. - - -0 - Heuristic overcommit handling. Obvious overcommits of - address space are refused. Used for a typical system. It - ensures a seriously wild allocation fails while allowing - overcommit to reduce swap usage. root is allowed to - allocate slightly more memory in this mode. This is the - default. - -1 - Always overcommit. Appropriate for some scientific - applications. - -2 - Don't overcommit. The total address space commit - for the system is not permitted to exceed swap plus a - configurable percentage (default is 50) of physical RAM. - Depending on the percentage you use, in most situations - this means a process will not be killed while attempting - to use already-allocated memory but will receive errors - on memory allocation as appropriate. - -overcommit_ratio ----------------- - -Percentage of physical memory size to include in overcommit calculations -(see above.) - -Memory allocation limit = swapspace + physmem * (overcommit_ratio / 100) - - swapspace = total size of all swap areas - physmem = size of physical memory in system - -nr_hugepages and hugetlb_shm_group ----------------------------------- - -nr_hugepages configures number of hugetlb page reserved for the system. - -hugetlb_shm_group contains group id that is allowed to create SysV shared -memory segment using hugetlb page. - -hugepages_treat_as_movable --------------------------- - -This parameter is only useful when kernelcore= is specified at boot time to -create ZONE_MOVABLE for pages that may be reclaimed or migrated. Huge pages -are not movable so are not normally allocated from ZONE_MOVABLE. A non-zero -value written to hugepages_treat_as_movable allows huge pages to be allocated -from ZONE_MOVABLE. - -Once enabled, the ZONE_MOVABLE is treated as an area of memory the huge -pages pool can easily grow or shrink within. Assuming that applications are -not running that mlock() a lot of memory, it is likely the huge pages pool -can grow to the size of ZONE_MOVABLE by repeatedly entering the desired value -into nr_hugepages and triggering page reclaim. - -laptop_mode ------------ - -laptop_mode is a knob that controls "laptop mode". All the things that are -controlled by this knob are discussed in Documentation/laptops/laptop-mode.txt. - -block_dump ----------- - -block_dump enables block I/O debugging when set to a nonzero value. More -information on block I/O debugging is in Documentation/laptops/laptop-mode.txt. - -swap_token_timeout ------------------- - -This file contains valid hold time of swap out protection token. The Linux -VM has token based thrashing control mechanism and uses the token to prevent -unnecessary page faults in thrashing situation. The unit of the value is -second. The value would be useful to tune thrashing behavior. - -drop_caches ------------ - -Writing to this will cause the kernel to drop clean caches, dentries and -inodes from memory, causing that memory to become free. - -To free pagecache: - echo 1 > /proc/sys/vm/drop_caches -To free dentries and inodes: - echo 2 > /proc/sys/vm/drop_caches -To free pagecache, dentries and inodes: - echo 3 > /proc/sys/vm/drop_caches - -As this is a non-destructive operation and dirty objects are not freeable, the -user should run `sync' first. +Please see: Documentation/sysctls/vm.txt for a description of these +entries. 2.5 /proc/sys/dev - Device specific parameters diff --git a/Documentation/hwmon/lis3lv02d b/Documentation/hwmon/lis3lv02d index 65dfb0c0fd6..0fcfc4a7ccd 100644 --- a/Documentation/hwmon/lis3lv02d +++ b/Documentation/hwmon/lis3lv02d @@ -13,18 +13,21 @@ Author: Description ----------- -This driver provides support for the accelerometer found in various HP laptops -sporting the feature officially called "HP Mobile Data Protection System 3D" or -"HP 3D DriveGuard". It detect automatically laptops with this sensor. Known models -(for now the HP 2133, nc6420, nc2510, nc8510, nc84x0, nw9440 and nx9420) will -have their axis automatically oriented on standard way (eg: you can directly -play neverball). The accelerometer data is readable via +This driver provides support for the accelerometer found in various HP +laptops sporting the feature officially called "HP Mobile Data +Protection System 3D" or "HP 3D DriveGuard". It detect automatically +laptops with this sensor. Known models (for now the HP 2133, nc6420, +nc2510, nc8510, nc84x0, nw9440 and nx9420) will have their axis +automatically oriented on standard way (eg: you can directly play +neverball). The accelerometer data is readable via /sys/devices/platform/lis3lv02d. Sysfs attributes under /sys/devices/platform/lis3lv02d/: position - 3D position that the accelerometer reports. Format: "(x,y,z)" -calibrate - read: values (x, y, z) that are used as the base for input class device operation. - write: forces the base to be recalibrated with the current position. +calibrate - read: values (x, y, z) that are used as the base for input + class device operation. + write: forces the base to be recalibrated with the current + position. rate - reports the sampling rate of the accelerometer device in HZ This driver also provides an absolute input class device, allowing @@ -39,11 +42,12 @@ the accelerometer are converted into a "standard" organisation of the axes * When the laptop is horizontal the position reported is about 0 for X and Y and a positive value for Z * If the left side is elevated, X increases (becomes positive) - * If the front side (where the touchpad is) is elevated, Y decreases (becomes negative) + * If the front side (where the touchpad is) is elevated, Y decreases + (becomes negative) * If the laptop is put upside-down, Z becomes negative -If your laptop model is not recognized (cf "dmesg"), you can send an email to the -authors to add it to the database. When reporting a new laptop, please include -the output of "dmidecode" plus the value of /sys/devices/platform/lis3lv02d/position -in these four cases. +If your laptop model is not recognized (cf "dmesg"), you can send an +email to the authors to add it to the database. When reporting a new +laptop, please include the output of "dmidecode" plus the value of +/sys/devices/platform/lis3lv02d/position in these four cases. diff --git a/Documentation/scheduler/sched-design-CFS.txt b/Documentation/scheduler/sched-design-CFS.txt index 8398ca4ff4e..6f33593e59e 100644 --- a/Documentation/scheduler/sched-design-CFS.txt +++ b/Documentation/scheduler/sched-design-CFS.txt @@ -231,7 +231,7 @@ CPU bandwidth control purposes: This options needs CONFIG_CGROUPS to be defined, and lets the administrator create arbitrary groups of tasks, using the "cgroup" pseudo filesystem. See - Documentation/cgroups.txt for more information about this filesystem. + Documentation/cgroups/cgroups.txt for more information about this filesystem. Only one of these options to group tasks can be chosen and not both. diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt index 4b7ac21ea9e..64eb1100eec 100644 --- a/Documentation/sound/alsa/HD-Audio-Models.txt +++ b/Documentation/sound/alsa/HD-Audio-Models.txt @@ -275,7 +275,8 @@ STAC9200 dell-m25 Dell Inspiron E1505n dell-m26 Dell Inspiron 1501 dell-m27 Dell Inspiron E1705/9400 - gateway Gateway laptops with EAPD control + gateway-m4 Gateway laptops with EAPD control + gateway-m4-2 Gateway laptops with EAPD control panasonic Panasonic CF-74 STAC9205/9254 @@ -302,6 +303,7 @@ STAC9220/9221 macbook-pro Intel Mac Book Pro 2nd generation (eq. type 3) imac-intel Intel iMac (eq. type 2) imac-intel-20 Intel iMac (newer version) (eq. type 3) + ecs202 ECS/PC chips dell-d81 Dell (unknown) dell-d82 Dell (unknown) dell-m81 Dell (unknown) @@ -310,9 +312,13 @@ STAC9220/9221 STAC9202/9250/9251 ================== ref Reference board, base config + m1 Some Gateway MX series laptops (NX560XL) + m1-2 Some Gateway MX series laptops (MX6453) + m2 Some Gateway MX series laptops (M255) m2-2 Some Gateway MX series laptops + m3 Some Gateway MX series laptops + m5 Some Gateway MX series laptops (MP6954) m6 Some Gateway NX series laptops - pa6 Gateway NX860 series STAC9227/9228/9229/927x ======================= @@ -329,6 +335,7 @@ STAC92HD71B* dell-m4-1 Dell desktops dell-m4-2 Dell desktops dell-m4-3 Dell desktops + hp-m4 HP dv laptops STAC92HD73* =========== @@ -337,6 +344,7 @@ STAC92HD73* dell-m6-amic Dell desktops/laptops with analog mics dell-m6-dmic Dell desktops/laptops with digital mics dell-m6 Dell desktops/laptops with both type of mics + dell-eq Dell desktops/laptops STAC92HD83* =========== diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index a3415070bca..3197fc83bc5 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -1,12 +1,13 @@ -Documentation for /proc/sys/vm/* kernel version 2.2.10 +Documentation for /proc/sys/vm/* kernel version 2.6.29 (c) 1998, 1999, Rik van Riel <riel@nl.linux.org> + (c) 2008 Peter W. Morreale <pmorreale@novell.com> For general info and legal blurb, please look in README. ============================================================== This file contains the documentation for the sysctl files in -/proc/sys/vm and is valid for Linux kernel version 2.2. +/proc/sys/vm and is valid for Linux kernel version 2.6.29. The files in this directory can be used to tune the operation of the virtual memory (VM) subsystem of the Linux kernel and @@ -16,180 +17,274 @@ Default values and initialization routines for most of these files can be found in mm/swap.c. Currently, these files are in /proc/sys/vm: -- overcommit_memory -- page-cluster -- dirty_ratio + +- block_dump +- dirty_background_bytes - dirty_background_ratio +- dirty_bytes - dirty_expire_centisecs +- dirty_ratio - dirty_writeback_centisecs -- highmem_is_dirtyable (only if CONFIG_HIGHMEM set) +- drop_caches +- hugepages_treat_as_movable +- hugetlb_shm_group +- laptop_mode +- legacy_va_layout +- lowmem_reserve_ratio - max_map_count - min_free_kbytes -- laptop_mode -- block_dump -- drop-caches -- zone_reclaim_mode -- min_unmapped_ratio - min_slab_ratio -- panic_on_oom -- oom_dump_tasks -- oom_kill_allocating_task -- mmap_min_address -- numa_zonelist_order +- min_unmapped_ratio +- mmap_min_addr - nr_hugepages - nr_overcommit_hugepages -- nr_trim_pages (only if CONFIG_MMU=n) +- nr_pdflush_threads +- nr_trim_pages (only if CONFIG_MMU=n) +- numa_zonelist_order +- oom_dump_tasks +- oom_kill_allocating_task +- overcommit_memory +- overcommit_ratio +- page-cluster +- panic_on_oom +- percpu_pagelist_fraction +- stat_interval +- swappiness +- vfs_cache_pressure +- zone_reclaim_mode + ============================================================== -dirty_bytes, dirty_ratio, dirty_background_bytes, -dirty_background_ratio, dirty_expire_centisecs, -dirty_writeback_centisecs, highmem_is_dirtyable, -vfs_cache_pressure, laptop_mode, block_dump, swap_token_timeout, -drop-caches, hugepages_treat_as_movable: +block_dump -See Documentation/filesystems/proc.txt +block_dump enables block I/O debugging when set to a nonzero value. More +information on block I/O debugging is in Documentation/laptops/laptop-mode.txt. ============================================================== -overcommit_memory: +dirty_background_bytes -This value contains a flag that enables memory overcommitment. +Contains the amount of dirty memory at which the pdflush background writeback +daemon will start writeback. -When this flag is 0, the kernel attempts to estimate the amount -of free memory left when userspace requests more memory. +If dirty_background_bytes is written, dirty_background_ratio becomes a function +of its value (dirty_background_bytes / the amount of dirtyable system memory). -When this flag is 1, the kernel pretends there is always enough -memory until it actually runs out. +============================================================== -When this flag is 2, the kernel uses a "never overcommit" -policy that attempts to prevent any overcommit of memory. +dirty_background_ratio -This feature can be very useful because there are a lot of -programs that malloc() huge amounts of memory "just-in-case" -and don't use much of it. +Contains, as a percentage of total system memory, the number of pages at which +the pdflush background writeback daemon will start writing out dirty data. -The default value is 0. +============================================================== -See Documentation/vm/overcommit-accounting and -security/commoncap.c::cap_vm_enough_memory() for more information. +dirty_bytes + +Contains the amount of dirty memory at which a process generating disk writes +will itself start writeback. + +If dirty_bytes is written, dirty_ratio becomes a function of its value +(dirty_bytes / the amount of dirtyable system memory). ============================================================== -overcommit_ratio: +dirty_expire_centisecs -When overcommit_memory is set to 2, the committed address -space is not permitted to exceed swap plus this percentage -of physical RAM. See above. +This tunable is used to define when dirty data is old enough to be eligible +for writeout by the pdflush daemons. It is expressed in 100'ths of a second. +Data which has been dirty in-memory for longer than this interval will be +written out next time a pdflush daemon wakes up. + +============================================================== + +dirty_ratio + +Contains, as a percentage of total system memory, the number of pages at which +a process which is generating disk writes will itself start writing out dirty +data. ============================================================== -page-cluster: +dirty_writeback_centisecs -The Linux VM subsystem avoids excessive disk seeks by reading -multiple pages on a page fault. The number of pages it reads -is dependent on the amount of memory in your machine. +The pdflush writeback daemons will periodically wake up and write `old' data +out to disk. This tunable expresses the interval between those wakeups, in +100'ths of a second. -The number of pages the kernel reads in at once is equal to -2 ^ page-cluster. Values above 2 ^ 5 don't make much sense -for swap because we only cluster swap data in 32-page groups. +Setting this to zero disables periodic writeback altogether. ============================================================== -max_map_count: +drop_caches -This file contains the maximum number of memory map areas a process -may have. Memory map areas are used as a side-effect of calling -malloc, directly by mmap and mprotect, and also when loading shared -libraries. +Writing to this will cause the kernel to drop clean caches, dentries and +inodes from memory, causing that memory to become free. -While most applications need less than a thousand maps, certain -programs, particularly malloc debuggers, may consume lots of them, -e.g., up to one or two maps per allocation. +To free pagecache: + echo 1 > /proc/sys/vm/drop_caches +To free dentries and inodes: + echo 2 > /proc/sys/vm/drop_caches +To free pagecache, dentries and inodes: + echo 3 > /proc/sys/vm/drop_caches -The default value is 65536. +As this is a non-destructive operation and dirty objects are not freeable, the +user should run `sync' first. ============================================================== -min_free_kbytes: +hugepages_treat_as_movable -This is used to force the Linux VM to keep a minimum number -of kilobytes free. The VM uses this number to compute a pages_min -value for each lowmem zone in the system. Each lowmem zone gets -a number of reserved free pages based proportionally on its size. +This parameter is only useful when kernelcore= is specified at boot time to +create ZONE_MOVABLE for pages that may be reclaimed or migrated. Huge pages +are not movable so are not normally allocated from ZONE_MOVABLE. A non-zero +value written to hugepages_treat_as_movable allows huge pages to be allocated +from ZONE_MOVABLE. -Some minimal amount of memory is needed to satisfy PF_MEMALLOC -allocations; if you set this to lower than 1024KB, your system will -become subtly broken, and prone to deadlock under high loads. - -Setting this too high will OOM your machine instantly. +Once enabled, the ZONE_MOVABLE is treated as an area of memory the huge +pages pool can easily grow or shrink within. Assuming that applications are +not running that mlock() a lot of memory, it is likely the huge pages pool +can grow to the size of ZONE_MOVABLE by repeatedly entering the desired value +into nr_hugepages and triggering page reclaim. ============================================================== -percpu_pagelist_fraction +hugetlb_shm_group -This is the fraction of pages at most (high mark pcp->high) in each zone that -are allocated for each per cpu page list. The min value for this is 8. It -means that we don't allow more than 1/8th of pages in each zone to be -allocated in any single per_cpu_pagelist. This entry only changes the value -of hot per cpu pagelists. User can specify a number like 100 to allocate -1/100th of each zone to each per cpu page list. +hugetlb_shm_group contains group id that is allowed to create SysV +shared memory segment using hugetlb page. -The batch value of each per cpu pagelist is also updated as a result. It is -set to pcp->high/4. The upper limit of batch is (PAGE_SHIFT * 8) +============================================================== -The initial value is zero. Kernel does not use this value at boot time to set -the high water marks for each per cpu page list. +laptop_mode -=============================================================== +laptop_mode is a knob that controls "laptop mode". All the things that are +controlled by this knob are discussed in Documentation/laptops/laptop-mode.txt. -zone_reclaim_mode: +============================================================== -Zone_reclaim_mode allows someone to set more or less aggressive approaches to -reclaim memory when a zone runs out of memory. If it is set to zero then no -zone reclaim occurs. Allocations will be satisfied from other zones / nodes -in the system. +legacy_va_layout -This is value ORed together of +If non-zero, this sysctl disables the new 32-bit mmap mmap layout - the kernel +will use the legacy (2.4) layout for all processes. -1 = Zone reclaim on -2 = Zone reclaim writes dirty pages out -4 = Zone reclaim swaps pages +============================================================== -zone_reclaim_mode is set during bootup to 1 if it is determined that pages -from remote zones will cause a measurable performance reduction. The -page allocator will then reclaim easily reusable pages (those page -cache pages that are currently not used) before allocating off node pages. +lowmem_reserve_ratio + +For some specialised workloads on highmem machines it is dangerous for +the kernel to allow process memory to be allocated from the "lowmem" +zone. This is because that memory could then be pinned via the mlock() +system call, or by unavailability of swapspace. + +And on large highmem machines this lack of reclaimable lowmem memory +can be fatal. + +So the Linux page allocator has a mechanism which prevents allocations +which _could_ use highmem from using too much lowmem. This means that +a certain amount of lowmem is defended from the possibility of being +captured into pinned user memory. + +(The same argument applies to the old 16 megabyte ISA DMA region. This +mechanism will also defend that region from allocations which could use +highmem or lowmem). + +The `lowmem_reserve_ratio' tunable determines how aggressive the kernel is +in defending these lower zones. + +If you have a machine which uses highmem or ISA DMA and your +applications are using mlock(), or if you are running with no swap then +you probably should change the lowmem_reserve_ratio setting. + +The lowmem_reserve_ratio is an array. You can see them by reading this file. +- +% cat /proc/sys/vm/lowmem_reserve_ratio +256 256 32 +- +Note: # of this elements is one fewer than number of zones. Because the highest + zone's value is not necessary for following calculation. + +But, these values are not used directly. The kernel calculates # of protection +pages for each zones from them. These are shown as array of protection pages +in /proc/zoneinfo like followings. (This is an example of x86-64 box). +Each zone has an array of protection pages like this. + +- +Node 0, zone DMA + pages free 1355 + min 3 + low 3 + high 4 + : + : + numa_other 0 + protection: (0, 2004, 2004, 2004) + ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + pagesets + cpu: 0 pcp: 0 + : +- +These protections are added to score to judge whether this zone should be used +for page allocation or should be reclaimed. + +In this example, if normal pages (index=2) are required to this DMA zone and +pages_high is used for watermark, the kernel judges this zone should not be +used because pages_free(1355) is smaller than watermark + protection[2] +(4 + 2004 = 2008). If this protection value is 0, this zone would be used for +normal page requirement. If requirement is DMA zone(index=0), protection[0] +(=0) is used. + +zone[i]'s protection[j] is calculated by following expression. + +(i < j): + zone[i]->protection[j] + = (total sums of present_pages from zone[i+1] to zone[j] on the node) + / lowmem_reserve_ratio[i]; +(i = j): + (should not be protected. = 0; +(i > j): + (not necessary, but looks 0) + +The default values of lowmem_reserve_ratio[i] are + 256 (if zone[i] means DMA or DMA32 zone) + 32 (others). +As above expression, they are reciprocal number of ratio. +256 means 1/256. # of protection pages becomes about "0.39%" of total present +pages of higher zones on the node. + +If you would like to protect more pages, smaller values are effective. +The minimum value is 1 (1/1 -> 100%). -It may be beneficial to switch off zone reclaim if the system is -used for a file server and all of memory should be used for caching files -from disk. In that case the caching effect is more important than -data locality. +============================================================== -Allowing zone reclaim to write out pages stops processes that are -writing large amounts of data from dirtying pages on other nodes. Zone -reclaim will write out dirty pages if a zone fills up and so effectively -throttle the process. This may decrease the performance of a single process -since it cannot use all of system memory to buffer the outgoing writes -anymore but it preserve the memory on other nodes so that the performance -of other processes running on other nodes will not be affected. +max_map_count: -Allowing regular swap effectively restricts allocations to the local -node unless explicitly overridden by memory policies or cpuset -configurations. +This file contains the maximum number of memory map areas a process +may have. Memory map areas are used as a side-effect of calling +malloc, directly by mmap and mprotect, and also when loading shared +libraries. -============================================================= +While most applications need less than a thousand maps, certain +programs, particularly malloc debuggers, may consume lots of them, +e.g., up to one or two maps per allocation. -min_unmapped_ratio: +The default value is 65536. -This is available only on NUMA kernels. +============================================================== -A percentage of the total pages in each zone. Zone reclaim will only -occur if more than this percentage of pages are file backed and unmapped. -This is to insure that a minimal amount of local pages is still available for -file I/O even if the node is overallocated. +min_free_kbytes: -The default is 1 percent. +This is used to force the Linux VM to keep a minimum number +of kilobytes free. The VM uses this number to compute a pages_min +value for each lowmem zone in the system. Each lowmem zone gets +a number of reserved free pages based proportionally on its size. + +Some minimal amount of memory is needed to satisfy PF_MEMALLOC +allocations; if you set this to lower than 1024KB, your system will +become subtly broken, and prone to deadlock under high loads. + +Setting this too high will OOM your machine instantly. ============================================================= @@ -211,82 +306,73 @@ and may not be fast. ============================================================= -panic_on_oom +min_unmapped_ratio: -This enables or disables panic on out-of-memory feature. +This is available only on NUMA kernels. -If this is set to 0, the kernel will kill some rogue process, -called oom_killer. Usually, oom_killer can kill rogue processes and -system will survive. +A percentage of the total pages in each zone. Zone reclaim will only +occur if more than this percentage of pages are file backed and unmapped. +This is to insure that a minimal amount of local pages is still available for +file I/O even if the node is overallocated. -If this is set to 1, the kernel panics when out-of-memory happens. -However, if a process limits using nodes by mempolicy/cpusets, -and those nodes become memory exhaustion status, one process -may be killed by oom-killer. No panic occurs in this case. -Because other nodes' memory may be free. This means system total status -may be not fatal yet. +The default is 1 percent. -If this is set to 2, the kernel panics compulsorily even on the -above-mentioned. +============================================================== -The default value is 0. -1 and 2 are for failover of clustering. Please select either -according to your policy of failover. +mmap_min_addr -============================================================= +This file indicates the amount of address space which a user process will +be restricted from mmaping. Since kernel null dereference bugs could +accidentally operate based on the information in the first couple of pages +of memory userspace processes should not be allowed to write to them. By +default this value is set to 0 and no protections will be enforced by the +security module. Setting this value to something like 64k will allow the +vast majority of applications to work correctly and provide defense in depth +against future potential kernel bugs. -oom_dump_tasks +============================================================== -Enables a system-wide task dump (excluding kernel threads) to be -produced when the kernel performs an OOM-killing and includes such -information as pid, uid, tgid, vm size, rss, cpu, oom_adj score, and -name. This is helpful to determine why the OOM killer was invoked -and to identify the rogue task that caused it. +nr_hugepages -If this is set to zero, this information is suppressed. On very -large systems with thousands of tasks it may not be feasible to dump -the memory state information for each one. Such systems should not -be forced to incur a performance penalty in OOM conditions when the -information may not be desired. +Change the minimum size of the hugepage pool. -If this is set to non-zero, this information is shown whenever the -OOM killer actually kills a memory-hogging task. +See Documentation/vm/hugetlbpage.txt -The default value is 0. +============================================================== -============================================================= +nr_overcommit_hugepages -oom_kill_allocating_task +Change the maximum size of the hugepage pool. The maximum is +nr_hugepages + nr_overcommit_hugepages. -This enables or disables killing the OOM-triggering task in -out-of-memory situations. +See Documentation/vm/hugetlbpage.txt -If this is set to zero, the OOM killer will scan through the entire -tasklist and select a task based on heuristics to kill. This normally -selects a rogue memory-hogging task that frees up a large amount of -memory when killed. +============================================================== -If this is set to non-zero, the OOM killer simply kills the task that -triggered the out-of-memory condition. This avoids the expensive -tasklist scan. +nr_pdflush_threads -If panic_on_oom is selected, it takes precedence over whatever value -is used in oom_kill_allocating_task. +The current number of pdflush threads. This value is read-only. +The value changes according to the number of dirty pages in the system. -The default value is 0. +When neccessary, additional pdflush threads are created, one per second, up to +nr_pdflush_threads_max. ============================================================== -mmap_min_addr +nr_trim_pages -This file indicates the amount of address space which a user process will -be restricted from mmaping. Since kernel null dereference bugs could -accidentally operate based on the information in the first couple of pages -of memory userspace processes should not be allowed to write to them. By -default this value is set to 0 and no protections will be enforced by the -security module. Setting this value to something like 64k will allow the -vast majority of applications to work correctly and provide defense in depth -against future potential kernel bugs. +This is available only on NOMMU kernels. + +This value adjusts the excess page trimming behaviour of power-of-2 aligned +NOMMU mmap allocations. + +A value of 0 disables trimming of allocations entirely, while a value of 1 +trims excess pages aggressively. Any value >= 1 acts as the watermark where +trimming of allocations is initiated. + +The default value is 1. + +See Documentation/nommu-mmap.txt for more information. ============================================================== @@ -335,34 +421,199 @@ this is causing problems for your system/application. ============================================================== -nr_hugepages +oom_dump_tasks -Change the minimum size of the hugepage pool. +Enables a system-wide task dump (excluding kernel threads) to be +produced when the kernel performs an OOM-killing and includes such +information as pid, uid, tgid, vm size, rss, cpu, oom_adj score, and +name. This is helpful to determine why the OOM killer was invoked +and to identify the rogue task that caused it. -See Documentation/vm/hugetlbpage.txt +If this is set to zero, this information is suppressed. On very +large systems with thousands of tasks it may not be feasible to dump +the memory state information for each one. Such systems should not +be forced to incur a performance penalty in OOM conditions when the +information may not be desired. + +If this is set to non-zero, this information is shown whenever the +OOM killer actually kills a memory-hogging task. + +The default value is 0. ============================================================== -nr_overcommit_hugepages +oom_kill_allocating_task -Change the maximum size of the hugepage pool. The maximum is -nr_hugepages + nr_overcommit_hugepages. +This enables or disables killing the OOM-triggering task in +out-of-memory situations. -See Documentation/vm/hugetlbpage.txt +If this is set to zero, the OOM killer will scan through the entire +tasklist and select a task based on heuristics to kill. This normally +selects a rogue memory-hogging task that frees up a large amount of +memory when killed. + +If this is set to non-zero, the OOM killer simply kills the task that +triggered the out-of-memory condition. This avoids the expensive +tasklist scan. + +If panic_on_oom is selected, it takes precedence over whatever value +is used in oom_kill_allocating_task. + +The default value is 0. ============================================================== -nr_trim_pages +overcommit_memory: -This is available only on NOMMU kernels. +This value contains a flag that enables memory overcommitment. -This value adjusts the excess page trimming behaviour of power-of-2 aligned -NOMMU mmap allocations. +When this flag is 0, the kernel attempts to estimate the amount +of free memory left when userspace requests more memory. -A value of 0 disables trimming of allocations entirely, while a value of 1 -trims excess pages aggressively. Any value >= 1 acts as the watermark where -trimming of allocations is initiated. +When this flag is 1, the kernel pretends there is always enough +memory until it actually runs out. -The default value is 1. +When this flag is 2, the kernel uses a "never overcommit" +policy that attempts to prevent any overcommit of memory. -See Documentation/nommu-mmap.txt for more information. +This feature can be very useful because there are a lot of +programs that malloc() huge amounts of memory "just-in-case" +and don't use much of it. + +The default value is 0. + +See Documentation/vm/overcommit-accounting and +security/commoncap.c::cap_vm_enough_memory() for more information. + +============================================================== + +overcommit_ratio: + +When overcommit_memory is set to 2, the committed address +space is not permitted to exceed swap plus this percentage +of physical RAM. See above. + +============================================================== + +page-cluster + +page-cluster controls the number of pages which are written to swap in +a single attempt. The swap I/O size. + +It is a logarithmic value - setting it to zero means "1 page", setting +it to 1 means "2 pages", setting it to 2 means "4 pages", etc. + +The default value is three (eight pages at a time). There may be some +small benefits in tuning this to a different value if your workload is +swap-intensive. + +============================================================= + +panic_on_oom + +This enables or disables panic on out-of-memory feature. + +If this is set to 0, the kernel will kill some rogue process, +called oom_killer. Usually, oom_killer can kill rogue processes and +system will survive. + +If this is set to 1, the kernel panics when out-of-memory happens. +However, if a process limits using nodes by mempolicy/cpusets, +and those nodes become memory exhaustion status, one process +may be killed by oom-killer. No panic occurs in this case. +Because other nodes' memory may be free. This means system total status +may be not fatal yet. + +If this is set to 2, the kernel panics compulsorily even on the +above-mentioned. + +The default value is 0. +1 and 2 are for failover of clustering. Please select either +according to your policy of failover. + +============================================================= + +percpu_pagelist_fraction + +This is the fraction of pages at most (high mark pcp->high) in each zone that +are allocated for each per cpu page list. The min value for this is 8. It +means that we don't allow more than 1/8th of pages in each zone to be +allocated in any single per_cpu_pagelist. This entry only changes the value +of hot per cpu pagelists. User can specify a number like 100 to allocate +1/100th of each zone to each per cpu page list. + +The batch value of each per cpu pagelist is also updated as a result. It is +set to pcp->high/4. The upper limit of batch is (PAGE_SHIFT * 8) + +The initial value is zero. Kernel does not use this value at boot time to set +the high water marks for each per cpu page list. + +============================================================== + +stat_interval + +The time interval between which vm statistics are updated. The default +is 1 second. + +============================================================== + +swappiness + +This control is used to define how aggressive the kernel will swap +memory pages. Higher values will increase agressiveness, lower values +descrease the amount of swap. + +The default value is 60. + +============================================================== + +vfs_cache_pressure +------------------ + +Controls the tendency of the kernel to reclaim the memory which is used for +caching of directory and inode objects. + +At the default value of vfs_cache_pressure=100 the kernel will attempt to +reclaim dentries and inodes at a "fair" rate with respect to pagecache and +swapcache reclaim. Decreasing vfs_cache_pressure causes the kernel to prefer +to retain dentry and inode caches. Increasing vfs_cache_pressure beyond 100 +causes the kernel to prefer to reclaim dentries and inodes. + +============================================================== + +zone_reclaim_mode: + +Zone_reclaim_mode allows someone to set more or less aggressive approaches to +reclaim memory when a zone runs out of memory. If it is set to zero then no +zone reclaim occurs. Allocations will be satisfied from other zones / nodes +in the system. + +This is value ORed together of + +1 = Zone reclaim on +2 = Zone reclaim writes dirty pages out +4 = Zone reclaim swaps pages + +zone_reclaim_mode is set during bootup to 1 if it is determined that pages +from remote zones will cause a measurable performance reduction. The +page allocator will then reclaim easily reusable pages (those page +cache pages that are currently not used) before allocating off node pages. + +It may be beneficial to switch off zone reclaim if the system is +used for a file server and all of memory should be used for caching files +from disk. In that case the caching effect is more important than +data locality. + +Allowing zone reclaim to write out pages stops processes that are +writing large amounts of data from dirtying pages on other nodes. Zone +reclaim will write out dirty pages if a zone fills up and so effectively +throttle the process. This may decrease the performance of a single process +since it cannot use all of system memory to buffer the outgoing writes +anymore but it preserve the memory on other nodes so that the performance +of other processes running on other nodes will not be affected. + +Allowing regular swap effectively restricts allocations to the local +node unless explicitly overridden by memory policies or cpuset +configurations. + +============ End of Document ================================= diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt index 10a0263ebb3..9e592c718af 100644 --- a/Documentation/sysrq.txt +++ b/Documentation/sysrq.txt @@ -1,6 +1,5 @@ Linux Magic System Request Key Hacks Documentation for sysrq.c -Last update: 2007-AUG-04 * What is the magic SysRq key? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ @@ -211,6 +210,24 @@ within a function called by handle_sysrq, you must be aware that you are in a lock (you are also in an interrupt handler, which means don't sleep!), so you must call __handle_sysrq_nolock instead. +* When I hit a SysRq key combination only the header appears on the console? +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Sysrq output is subject to the same console loglevel control as all +other console output. This means that if the kernel was booted 'quiet' +as is common on distro kernels the output may not appear on the actual +console, even though it will appear in the dmesg buffer, and be accessible +via the dmesg command and to the consumers of /proc/kmsg. As a specific +exception the header line from the sysrq command is passed to all console +consumers as if the current loglevel was maximum. If only the header +is emitted it is almost certain that the kernel loglevel is too low. +Should you require the output on the console channel then you will need +to temporarily up the console loglevel using alt-sysrq-8 or: + + echo 8 > /proc/sysrq-trigger + +Remember to return the loglevel to normal after triggering the sysrq +command you are interested in. + * I have more questions, who can I ask? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ And I'll answer any questions about the registration system you got, also diff --git a/MAINTAINERS b/MAINTAINERS index 3f6ef02ad68..3fe4dc2c256 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1581,6 +1581,13 @@ L: bluesmoke-devel@lists.sourceforge.net W: bluesmoke.sourceforge.net S: Maintained +EDAC-I5400 +P: Mauro Carvalho Chehab +M: mchehab@redhat.com +L: bluesmoke-devel@lists.sourceforge.net +W: bluesmoke.sourceforge.net +S: Maintained + EDAC-I82975X P: Ranganathan Desikan P: Arvind R. @@ -1814,6 +1821,14 @@ M: hch@infradead.org W: ftp://ftp.openlinux.org/pub/people/hch/vxfs S: Maintained +FREEZER +P: Pavel Machek +M: pavel@suse.cz +P: Rafael J. Wysocki +M: rjw@sisk.pl +L: linux-pm@lists.linux-foundation.org +S: Supported + FTRACE P: Steven Rostedt M: rostedt@goodmis.org diff --git a/arch/alpha/include/asm/machvec.h b/arch/alpha/include/asm/machvec.h index a86c083cdf7..fea4ea75b79 100644 --- a/arch/alpha/include/asm/machvec.h +++ b/arch/alpha/include/asm/machvec.h @@ -21,6 +21,7 @@ struct pci_dev; struct pci_ops; struct pci_controller; struct _alpha_agp_info; +struct rtc_time; struct alpha_machine_vector { @@ -94,6 +95,9 @@ struct alpha_machine_vector struct _alpha_agp_info *(*agp_info)(void); + unsigned int (*rtc_get_time)(struct rtc_time *); + int (*rtc_set_time)(struct rtc_time *); + const char *vector_name; /* NUMA information */ diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h index fd090155dcc..bc2a0daf2d9 100644 --- a/arch/alpha/include/asm/pgalloc.h +++ b/arch/alpha/include/asm/pgalloc.h @@ -50,7 +50,12 @@ pmd_free(struct mm_struct *mm, pmd_t *pmd) free_page((unsigned long)pmd); } -extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); +static inline pte_t * +pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) +{ + pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); + return pte; +} static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) diff --git a/arch/alpha/include/asm/rtc.h b/arch/alpha/include/asm/rtc.h index 4e854b1333e..1f7fba671ae 100644 --- a/arch/alpha/include/asm/rtc.h +++ b/arch/alpha/include/asm/rtc.h @@ -1,9 +1,15 @@ #ifndef _ALPHA_RTC_H #define _ALPHA_RTC_H -/* - * Alpha uses the default access methods for the RTC. - */ +#if defined(CONFIG_ALPHA_GENERIC) +# define get_rtc_time alpha_mv.rtc_get_time +# define set_rtc_time alpha_mv.rtc_set_time +#else +# if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP) +# define get_rtc_time marvel_get_rtc_time +# define set_rtc_time marvel_set_rtc_time +# endif +#endif #include <asm-generic/rtc.h> diff --git a/arch/alpha/kernel/.gitignore b/arch/alpha/kernel/.gitignore new file mode 100644 index 00000000000..c5f676c3c22 --- /dev/null +++ b/arch/alpha/kernel/.gitignore @@ -0,0 +1 @@ +vmlinux.lds diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c index 9cd8dca742a..e302daecbe5 100644 --- a/arch/alpha/kernel/core_marvel.c +++ b/arch/alpha/kernel/core_marvel.c @@ -658,16 +658,8 @@ __marvel_rtc_io(u8 b, unsigned long addr, int write) rtc_access.data = bcd2bin(b); rtc_access.function = 0x48 + !write; /* GET/PUT_TOY */ -#ifdef CONFIG_SMP - if (smp_processor_id() != boot_cpuid) - smp_call_function_single(boot_cpuid, - __marvel_access_rtc, - &rtc_access, 1); - else - __marvel_access_rtc(&rtc_access); -#else __marvel_access_rtc(&rtc_access); -#endif + ret = bin2bcd(rtc_access.data); break; diff --git a/arch/alpha/kernel/irq_srm.c b/arch/alpha/kernel/irq_srm.c index 32212014fbe..a03fbca4940 100644 --- a/arch/alpha/kernel/irq_srm.c +++ b/arch/alpha/kernel/irq_srm.c @@ -63,6 +63,8 @@ init_srm_irqs(long max, unsigned long ignore_mask) { long i; + if (NR_IRQS <= 16) + return; for (i = 16; i < max; ++i) { if (i < 64 && ((ignore_mask >> i) & 1)) continue; diff --git a/arch/alpha/kernel/machvec_impl.h b/arch/alpha/kernel/machvec_impl.h index 466c9dff818..512685f7809 100644 --- a/arch/alpha/kernel/machvec_impl.h +++ b/arch/alpha/kernel/machvec_impl.h @@ -40,7 +40,10 @@ #define CAT1(x,y) x##y #define CAT(x,y) CAT1(x,y) -#define DO_DEFAULT_RTC .rtc_port = 0x70 +#define DO_DEFAULT_RTC \ + .rtc_port = 0x70, \ + .rtc_get_time = common_get_rtc_time, \ + .rtc_set_time = common_set_rtc_time #define DO_EV4_MMU \ .max_asn = EV4_MAX_ASN, \ diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h index 708d5ca8778..fe14c6747cd 100644 --- a/arch/alpha/kernel/proto.h +++ b/arch/alpha/kernel/proto.h @@ -145,6 +145,8 @@ extern void smp_percpu_timer_interrupt(struct pt_regs *); extern irqreturn_t timer_interrupt(int irq, void *dev); extern void common_init_rtc(void); extern unsigned long est_cycle_freq; +extern unsigned int common_get_rtc_time(struct rtc_time *time); +extern int common_set_rtc_time(struct rtc_time *time); /* smc37c93x.c */ extern void SMC93x_Init(void); diff --git a/arch/alpha/kernel/sys_jensen.c b/arch/alpha/kernel/sys_jensen.c index 2c3de97de46..e2516f9a896 100644 --- a/arch/alpha/kernel/sys_jensen.c +++ b/arch/alpha/kernel/sys_jensen.c @@ -261,6 +261,8 @@ struct alpha_machine_vector jensen_mv __initmv = { .machine_check = jensen_machine_check, .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, .rtc_port = 0x170, + .rtc_get_time = common_get_rtc_time, + .rtc_set_time = common_set_rtc_time, .nr_irqs = 16, .device_interrupt = jensen_device_interrupt, diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c index 828449cd263..c5a1a2438c6 100644 --- a/arch/alpha/kernel/sys_marvel.c +++ b/arch/alpha/kernel/sys_marvel.c @@ -23,6 +23,7 @@ #include <asm/hwrpb.h> #include <asm/tlbflush.h> #include <asm/vga.h> +#include <asm/rtc.h> #include "proto.h" #include "err_impl.h" @@ -426,6 +427,57 @@ marvel_init_rtc(void) init_rtc_irq(); } +struct marvel_rtc_time { + struct rtc_time *time; + int retval; +}; + +#ifdef CONFIG_SMP +static void +smp_get_rtc_time(void *data) +{ + struct marvel_rtc_time *mrt = data; + mrt->retval = __get_rtc_time(mrt->time); +} + +static void +smp_set_rtc_time(void *data) +{ + struct marvel_rtc_time *mrt = data; + mrt->retval = __set_rtc_time(mrt->time); +} +#endif + +static unsigned int +marvel_get_rtc_time(struct rtc_time *time) +{ +#ifdef CONFIG_SMP + struct marvel_rtc_time mrt; + + if (smp_processor_id() != boot_cpuid) { + mrt.time = time; + smp_call_function_single(boot_cpuid, smp_get_rtc_time, &mrt, 1); + return mrt.retval; + } +#endif + return __get_rtc_time(time); +} + +static int +marvel_set_rtc_time(struct rtc_time *time) +{ +#ifdef CONFIG_SMP + struct marvel_rtc_time mrt; + + if (smp_processor_id() != boot_cpuid) { + mrt.time = time; + smp_call_function_single(boot_cpuid, smp_set_rtc_time, &mrt, 1); + return mrt.retval; + } +#endif + return __set_rtc_time(time); +} + static void marvel_smp_callin(void) { @@ -466,7 +518,9 @@ marvel_smp_callin(void) struct alpha_machine_vector marvel_ev7_mv __initmv = { .vector_name = "MARVEL/EV7", DO_EV7_MMU, - DO_DEFAULT_RTC, + .rtc_port = 0x70, + .rtc_get_time = marvel_get_rtc_time, + .rtc_set_time = marvel_set_rtc_time, DO_MARVEL_IO, .machine_check = marvel_machine_check, .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c index a7f23b5ab81..99c0f46f6b9 100644 --- a/arch/alpha/kernel/sys_nautilus.c +++ b/arch/alpha/kernel/sys_nautilus.c @@ -245,6 +245,10 @@ nautilus_init_pci(void) IRONGATE0->pci_mem = pci_mem; pci_bus_assign_resources(bus); + + /* pci_common_swizzle() relies on bus->self being NULL + for the root bus, so just clear it. */ + bus->self = NULL; pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq); } diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c index e6a231435cb..b04e2cbf23a 100644 --- a/arch/alpha/kernel/time.c +++ b/arch/alpha/kernel/time.c @@ -46,6 +46,7 @@ #include <asm/io.h> #include <asm/hwrpb.h> #include <asm/8253pit.h> +#include <asm/rtc.h> #include <linux/mc146818rtc.h> #include <linux/time.h> @@ -180,6 +181,15 @@ common_init_rtc(void) init_rtc_irq(); } +unsigned int common_get_rtc_time(struct rtc_time *time) +{ + return __get_rtc_time(time); +} + +int common_set_rtc_time(struct rtc_time *time) +{ + return __set_rtc_time(time); +} /* Validate a computed cycle counter result against the known bounds for the given processor core. There's too much brokenness in the way of diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index 234e42b8ee7..5d7a16eab31 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -59,13 +59,6 @@ pgd_alloc(struct mm_struct *mm) return ret; } -pte_t * -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) -{ - pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); - return pte; -} - /* * BAD_PAGE is the page that is used for page faults when linux diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 3d31636cbaf..6183aeccecf 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -17,6 +17,7 @@ config IA64 select ACPI if (!IA64_HP_SIM) select PM if (!IA64_HP_SIM) select ARCH_SUPPORTS_MSI + select HAVE_UNSTABLE_SCHED_CLOCK select HAVE_IDE select HAVE_OPROFILE select HAVE_KPROBES diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig index 27eb67604c5..a109db30ce5 100644 --- a/arch/ia64/configs/generic_defconfig +++ b/arch/ia64/configs/generic_defconfig @@ -578,7 +578,7 @@ CONFIG_ATA_PIIX=y # CONFIG_SATA_SIS is not set # CONFIG_SATA_ULI is not set # CONFIG_SATA_VIA is not set -# CONFIG_SATA_VITESSE is not set +CONFIG_SATA_VITESSE=y # CONFIG_SATA_INIC162X is not set # CONFIG_PATA_ACPI is not set # CONFIG_PATA_ALI is not set diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h index bbab7e2b0fc..1f912d92758 100644 --- a/arch/ia64/include/asm/dma-mapping.h +++ b/arch/ia64/include/asm/dma-mapping.h @@ -9,6 +9,8 @@ #include <linux/scatterlist.h> #include <asm/swiotlb.h> +#define ARCH_HAS_DMA_GET_REQUIRED_MASK + struct dma_mapping_ops { int (*mapping_error)(struct device *dev, dma_addr_t dma_addr); diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h index 59c17e44668..fe87b212170 100644 --- a/arch/ia64/include/asm/machvec.h +++ b/arch/ia64/include/asm/machvec.h @@ -62,6 +62,7 @@ typedef dma_addr_t ia64_mv_dma_map_single_attrs (struct device *, void *, size_t typedef void ia64_mv_dma_unmap_single_attrs (struct device *, dma_addr_t, size_t, int, struct dma_attrs *); typedef int ia64_mv_dma_map_sg_attrs (struct device *, struct scatterlist *, int, int, struct dma_attrs *); typedef void ia64_mv_dma_unmap_sg_attrs (struct device *, struct scatterlist *, int, int, struct dma_attrs *); +typedef u64 ia64_mv_dma_get_required_mask (struct device *); /* * WARNING: The legacy I/O space is _architected_. Platforms are @@ -159,6 +160,7 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *); # define platform_dma_sync_sg_for_device ia64_mv.dma_sync_sg_for_device # define platform_dma_mapping_error ia64_mv.dma_mapping_error # define platform_dma_supported ia64_mv.dma_supported +# define platform_dma_get_required_mask ia64_mv.dma_get_required_mask # define platform_irq_to_vector ia64_mv.irq_to_vector # define platform_local_vector_to_irq ia64_mv.local_vector_to_irq # define platform_pci_get_legacy_mem ia64_mv.pci_get_legacy_mem @@ -213,6 +215,7 @@ struct ia64_machine_vector { ia64_mv_dma_sync_sg_for_device *dma_sync_sg_for_device; ia64_mv_dma_mapping_error *dma_mapping_error; ia64_mv_dma_supported *dma_supported; + ia64_mv_dma_get_required_mask *dma_get_required_mask; ia64_mv_irq_to_vector *irq_to_vector; ia64_mv_local_vector_to_irq *local_vector_to_irq; ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem; @@ -263,6 +266,7 @@ struct ia64_machine_vector { platform_dma_sync_sg_for_device, \ platform_dma_mapping_error, \ platform_dma_supported, \ + platform_dma_get_required_mask, \ platform_irq_to_vector, \ platform_local_vector_to_irq, \ platform_pci_get_legacy_mem, \ @@ -366,6 +370,9 @@ extern void machvec_init_from_cmdline(const char *cmdline); #ifndef platform_dma_supported # define platform_dma_supported swiotlb_dma_supported #endif +#ifndef platform_dma_get_required_mask +# define platform_dma_get_required_mask ia64_dma_get_required_mask +#endif #ifndef platform_irq_to_vector # define platform_irq_to_vector __ia64_irq_to_vector #endif diff --git a/arch/ia64/include/asm/machvec_init.h b/arch/ia64/include/asm/machvec_init.h index ef964b28684..37a469849ab 100644 --- a/arch/ia64/include/asm/machvec_init.h +++ b/arch/ia64/include/asm/machvec_init.h @@ -3,6 +3,7 @@ extern ia64_mv_send_ipi_t ia64_send_ipi; extern ia64_mv_global_tlb_purge_t ia64_global_tlb_purge; +extern ia64_mv_dma_get_required_mask ia64_dma_get_required_mask; extern ia64_mv_irq_to_vector __ia64_irq_to_vector; extern ia64_mv_local_vector_to_irq __ia64_local_vector_to_irq; extern ia64_mv_pci_get_legacy_mem_t ia64_pci_get_legacy_mem; diff --git a/arch/ia64/include/asm/machvec_sn2.h b/arch/ia64/include/asm/machvec_sn2.h index 781308ea7b8..f1a6e0d6dfa 100644 --- a/arch/ia64/include/asm/machvec_sn2.h +++ b/arch/ia64/include/asm/machvec_sn2.h @@ -67,6 +67,7 @@ extern ia64_mv_dma_sync_single_for_device sn_dma_sync_single_for_device; extern ia64_mv_dma_sync_sg_for_device sn_dma_sync_sg_for_device; extern ia64_mv_dma_mapping_error sn_dma_mapping_error; extern ia64_mv_dma_supported sn_dma_supported; +extern ia64_mv_dma_get_required_mask sn_dma_get_required_mask; extern ia64_mv_migrate_t sn_migrate; extern ia64_mv_kernel_launch_event_t sn_kernel_launch_event; extern ia64_mv_setup_msi_irq_t sn_setup_msi_irq; @@ -123,6 +124,7 @@ extern ia64_mv_pci_fixup_bus_t sn_pci_fixup_bus; #define platform_dma_sync_sg_for_device sn_dma_sync_sg_for_device #define platform_dma_mapping_error sn_dma_mapping_error #define platform_dma_supported sn_dma_supported +#define platform_dma_get_required_mask sn_dma_get_required_mask #define platform_migrate sn_migrate #define platform_kernel_launch_event sn_kernel_launch_event #ifdef CONFIG_PCI_MSI diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c index ff0e7c10faa..6db08599ebb 100644 --- a/arch/ia64/kernel/unaligned.c +++ b/arch/ia64/kernel/unaligned.c @@ -59,6 +59,7 @@ dump (const char *str, void *vp, size_t len) * (i.e. don't allow attacker to fill up logs with unaligned accesses). */ int no_unaligned_warning; +int unaligned_dump_stack; static int noprint_warning; /* @@ -1371,9 +1372,12 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs) } } } else { - if (within_logging_rate_limit()) + if (within_logging_rate_limit()) { printk(KERN_WARNING "kernel unaligned access to 0x%016lx, ip=0x%016lx\n", ifa, regs->cr_iip + ipsr->ri); + if (unaligned_dump_stack) + dump_stack(); + } set_fs(KERNEL_DS); } diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 211fcfd115f..61f1af5c23c 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -19,6 +19,7 @@ #include <linux/ioport.h> #include <linux/slab.h> #include <linux/spinlock.h> +#include <linux/bootmem.h> #include <asm/machvec.h> #include <asm/page.h> @@ -748,6 +749,32 @@ static void __init set_pci_cacheline_size(void) pci_cache_line_size = (1 << cci.pcci_line_size) / 4; } +u64 ia64_dma_get_required_mask(struct device *dev) +{ + u32 low_totalram = ((max_pfn - 1) << PAGE_SHIFT); + u32 high_totalram = ((max_pfn - 1) >> (32 - PAGE_SHIFT)); + u64 mask; + + if (!high_totalram) { + /* convert to mask just covering totalram */ + low_totalram = (1 << (fls(low_totalram) - 1)); + low_totalram += low_totalram - 1; + mask = low_totalram; + } else { + high_totalram = (1 << (fls(high_totalram) - 1)); + high_totalram += high_totalram - 1; + mask = (((u64)high_totalram) << 32) + 0xffffffff; + } + return mask; +} +EXPORT_SYMBOL_GPL(ia64_dma_get_required_mask); + +u64 dma_get_required_mask(struct device *dev) +{ + return platform_dma_get_required_mask(dev); +} +EXPORT_SYMBOL_GPL(dma_get_required_mask); + static int __init pcibios_init(void) { set_pci_cacheline_size(); diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c index 53ebb648449..863f5017baa 100644 --- a/arch/ia64/sn/pci/pci_dma.c +++ b/arch/ia64/sn/pci/pci_dma.c @@ -356,6 +356,12 @@ int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) } EXPORT_SYMBOL(sn_dma_mapping_error); +u64 sn_dma_get_required_mask(struct device *dev) +{ + return DMA_64BIT_MASK; +} +EXPORT_SYMBOL_GPL(sn_dma_get_required_mask); + char *sn_pci_get_legacy_mem(struct pci_bus *bus) { if (!SN_PCIBUS_BUSSOFT(bus)) diff --git a/arch/ia64/xen/time.c b/arch/ia64/xen/time.c index d15a94c330f..68d6204c3f1 100644 --- a/arch/ia64/xen/time.c +++ b/arch/ia64/xen/time.c @@ -129,8 +129,8 @@ consider_steal_time(unsigned long new_itm) blocked = stolentick; if (stolen > 0 || blocked > 0) { - account_steal_time(NULL, jiffies_to_cputime(stolen)); - account_steal_time(idle_task(cpu), jiffies_to_cputime(blocked)); + account_steal_ticks(stolen); + account_idle_ticks(blocked); run_local_timers(); if (rcu_pending(cpu)) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 4cf30dee816..e89d24815f2 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -555,12 +555,10 @@ repeat: if (!pte_val(old_pte)) { if (!primary) return 0; - - /* - * Special error value returned, indicating that the mapping - * did not exist at this address. - */ - return -EFAULT; + WARN(1, KERN_WARNING "CPA: called for zero pte. " + "vaddr = %lx cpa->vaddr = %lx\n", address, + *cpa->vaddr); + return -EINVAL; } if (level == PG_LEVEL_4K) { diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 160c42d3eb8..8b08fb95527 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -505,35 +505,6 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) } #endif /* CONFIG_STRICT_DEVMEM */ -/* - * Change the memory type for the physial address range in kernel identity - * mapping space if that range is a part of identity map. - */ -static int kernel_map_sync_memtype(u64 base, unsigned long size, - unsigned long flags) -{ - unsigned long id_sz; - int ret; - - if (!pat_enabled || base >= __pa(high_memory)) - return 0; - - id_sz = (__pa(high_memory) < base + size) ? - __pa(high_memory) - base : - size; - - ret = ioremap_change_attr((unsigned long)__va(base), id_sz, flags); - /* - * -EFAULT return means that the addr was not valid and did not have - * any identity mapping. That case is a success for - * kernel_map_sync_memtype. - */ - if (ret == -EFAULT) - ret = 0; - - return ret; -} - int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, unsigned long size, pgprot_t *vma_prot) { @@ -584,7 +555,9 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, if (retval < 0) return 0; - if (kernel_map_sync_memtype(offset, size, flags)) { + if (((pfn < max_low_pfn_mapped) || + (pfn >= (1UL<<(32 - PAGE_SHIFT)) && pfn < max_pfn_mapped)) && + ioremap_change_attr((unsigned long)__va(offset), size, flags) < 0) { free_memtype(offset, offset + size); printk(KERN_INFO "%s:%d /dev/mem ioremap_change_attr failed %s for %Lx-%Lx\n", @@ -632,7 +605,7 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot, int strict_prot) { int is_ram = 0; - int ret; + int id_sz, ret; unsigned long flags; unsigned long want_flags = (pgprot_val(*vma_prot) & _PAGE_CACHE_MASK); @@ -673,7 +646,15 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot, flags); } - if (kernel_map_sync_memtype(paddr, size, flags)) { + /* Need to keep identity mapping in sync */ + if (paddr >= __pa(high_memory)) + return 0; + + id_sz = (__pa(high_memory) < paddr + size) ? + __pa(high_memory) - paddr : + size; + + if (ioremap_change_attr((unsigned long)__va(paddr), id_sz, flags) < 0) { free_memtype(paddr, paddr + size); printk(KERN_ERR "%s:%d reserve_pfn_range ioremap_change_attr failed %s " diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 7bcc1d8bc96..34f80fa6fed 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -406,6 +406,7 @@ static int nbd_do_it(struct nbd_device *lo) ret = sysfs_create_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr); if (ret) { printk(KERN_ERR "nbd: sysfs_create_file failed!"); + lo->pid = 0; return ret; } @@ -413,6 +414,7 @@ static int nbd_do_it(struct nbd_device *lo) nbd_end_request(req); sysfs_remove_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr); + lo->pid = 0; return 0; } @@ -648,6 +650,8 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode, set_capacity(lo->disk, lo->bytesize >> 9); return 0; case NBD_DO_IT: + if (lo->pid) + return -EBUSY; if (!lo->file) return -EINVAL; thread = kthread_create(nbd_thread, lo, lo->disk->disk_name); diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 53544e21f19..f329f459817 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -1,6 +1,4 @@ /* - * $Id: synclink_gt.c,v 4.50 2007/07/25 19:29:25 paulkf Exp $ - * * Device driver for Microgate SyncLink GT serial adapters. * * written by Paul Fulghum for Microgate Corporation @@ -91,7 +89,6 @@ * module identification */ static char *driver_name = "SyncLink GT"; -static char *driver_version = "$Revision: 4.50 $"; static char *tty_driver_name = "synclink_gt"; static char *tty_dev_prefix = "ttySLG"; MODULE_LICENSE("GPL"); @@ -1309,7 +1306,7 @@ static int read_proc(char *page, char **start, off_t off, int count, off_t begin = 0; struct slgt_info *info; - len += sprintf(page, "synclink_gt driver:%s\n", driver_version); + len += sprintf(page, "synclink_gt driver\n"); info = slgt_device_list; while( info ) { @@ -2441,7 +2438,7 @@ static void program_hw(struct slgt_info *info) info->ri_chkcount = 0; info->dsr_chkcount = 0; - slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR); + slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI); get_signals(info); if (info->netcount || @@ -3576,7 +3573,7 @@ static void slgt_cleanup(void) struct slgt_info *info; struct slgt_info *tmp; - printk("unload %s %s\n", driver_name, driver_version); + printk(KERN_INFO "unload %s\n", driver_name); if (serial_driver) { for (info=slgt_device_list ; info != NULL ; info=info->next_device) @@ -3619,7 +3616,7 @@ static int __init slgt_init(void) { int rc; - printk("%s %s\n", driver_name, driver_version); + printk(KERN_INFO "%s\n", driver_name); serial_driver = alloc_tty_driver(MAX_DEVICES); if (!serial_driver) { @@ -3650,9 +3647,8 @@ static int __init slgt_init(void) goto error; } - printk("%s %s, tty major#%d\n", - driver_name, driver_version, - serial_driver->major); + printk(KERN_INFO "%s, tty major#%d\n", + driver_name, serial_driver->major); slgt_device_count = 0; if ((rc = pci_register_driver(&pci_driver)) < 0) { diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c index d41b9f6f790..33a9351c896 100644 --- a/drivers/char/sysrq.c +++ b/drivers/char/sysrq.c @@ -473,6 +473,12 @@ void __handle_sysrq(int key, struct tty_struct *tty, int check_mask) unsigned long flags; spin_lock_irqsave(&sysrq_key_table_lock, flags); + /* + * Raise the apparent loglevel to maximum so that the sysrq header + * is shown to provide the user with positive feedback. We do not + * simply emit this at KERN_EMERG as that would change message + * routing in the consumers of /proc/kmsg. + */ orig_log_level = console_loglevel; console_loglevel = 7; printk(KERN_INFO "SysRq : "); diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c index a408c8e487e..6f4c7d0a53b 100644 --- a/drivers/char/tty_ioctl.c +++ b/drivers/char/tty_ioctl.c @@ -1057,7 +1057,7 @@ int tty_perform_flush(struct tty_struct *tty, unsigned long arg) if (retval) return retval; - ld = tty_ldisc_ref(tty); + ld = tty_ldisc_ref_wait(tty); switch (arg) { case TCIFLUSH: if (ld && ld->ops->flush_buffer) diff --git a/drivers/gpio/max7301.c b/drivers/gpio/max7301.c index 8b24d784db9..3e7f4e06386 100644 --- a/drivers/gpio/max7301.c +++ b/drivers/gpio/max7301.c @@ -217,8 +217,10 @@ static int __devinit max7301_probe(struct spi_device *spi) int i, ret; pdata = spi->dev.platform_data; - if (!pdata || !pdata->base) - return -ENODEV; + if (!pdata || !pdata->base) { + dev_dbg(&spi->dev, "incorrect or missing platform data\n"); + return -EINVAL; + } /* * bits_per_word cannot be configured in platform data diff --git a/drivers/gpio/max732x.c b/drivers/gpio/max732x.c index 55ae9a41897..f7868243af8 100644 --- a/drivers/gpio/max732x.c +++ b/drivers/gpio/max732x.c @@ -267,8 +267,10 @@ static int __devinit max732x_probe(struct i2c_client *client, int ret, nr_port; pdata = client->dev.platform_data; - if (pdata == NULL) - return -ENODEV; + if (pdata == NULL) { + dev_dbg(&client->dev, "no platform data\n"); + return -EINVAL; + } chip = kzalloc(sizeof(struct max732x_chip), GFP_KERNEL); if (chip == NULL) diff --git a/drivers/gpio/mcp23s08.c b/drivers/gpio/mcp23s08.c index 89c1d222e9d..f6fae0e50e6 100644 --- a/drivers/gpio/mcp23s08.c +++ b/drivers/gpio/mcp23s08.c @@ -310,8 +310,10 @@ static int mcp23s08_probe(struct spi_device *spi) unsigned base; pdata = spi->dev.platform_data; - if (!pdata || !gpio_is_valid(pdata->base)) - return -ENODEV; + if (!pdata || !gpio_is_valid(pdata->base)) { + dev_dbg(&spi->dev, "invalid or missing platform data\n"); + return -EINVAL; + } for (addr = 0; addr < 4; addr++) { if (!pdata->chip[addr].is_present) diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index 37f35388a2a..8dc0164bd51 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -202,8 +202,10 @@ static int __devinit pca953x_probe(struct i2c_client *client, int ret; pdata = client->dev.platform_data; - if (pdata == NULL) - return -ENODEV; + if (pdata == NULL) { + dev_dbg(&client->dev, "no platform data\n"); + return -EINVAL; + } chip = kzalloc(sizeof(struct pca953x_chip), GFP_KERNEL); if (chip == NULL) diff --git a/drivers/gpio/pcf857x.c b/drivers/gpio/pcf857x.c index 4bc2070dd4a..9525724be73 100644 --- a/drivers/gpio/pcf857x.c +++ b/drivers/gpio/pcf857x.c @@ -188,8 +188,10 @@ static int pcf857x_probe(struct i2c_client *client, int status; pdata = client->dev.platform_data; - if (!pdata) - return -ENODEV; + if (!pdata) { + dev_dbg(&client->dev, "no platform data\n"); + return -EINVAL; + } /* Allocate, initialize, and register this gpio_chip. */ gpio = kzalloc(sizeof *gpio, GFP_KERNEL); @@ -248,8 +250,10 @@ static int pcf857x_probe(struct i2c_client *client, else status = i2c_read_le16(client); - } else - status = -ENODEV; + } else { + dev_dbg(&client->dev, "unsupported number of gpios\n"); + status = -EINVAL; + } if (status < 0) goto fail; diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 5c349a19a3a..b84bf066879 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -871,6 +871,8 @@ config SENSORS_HDAPS config SENSORS_LIS3LV02D tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer" depends on ACPI && INPUT + select NEW_LEDS + select LEDS_CLASS default n help This driver provides support for the LIS3LV02Dx accelerometer. In @@ -882,10 +884,16 @@ config SENSORS_LIS3LV02D /sys/devices/platform/lis3lv02d. This driver also provides an absolute input class device, allowing - the laptop to act as a pinball machine-esque joystick. + the laptop to act as a pinball machine-esque joystick. On HP laptops, + if the led infrastructure is activated, support for a led indicating + disk protection will be provided as hp:red:hddprotection. - This driver can also be built as a module. If so, the module - will be called lis3lv02d. + This driver can also be built as modules. If so, the core module + will be called lis3lv02d and a specific module for HP laptops will be + called hp_accel. + + Say Y here if you have an applicable laptop and want to experience + the awesome power of lis3lv02d. config SENSORS_APPLESMC tristate "Apple SMC (Motion sensor, light sensor, keyboard backlight)" diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index dca47a591ba..e3018623658 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -590,6 +590,11 @@ static ssize_t applesmc_light_show(struct device *dev, } ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length); + /* newer macbooks report a single 10-bit bigendian value */ + if (data_length == 10) { + left = be16_to_cpu(*(__be16 *)(buffer + 6)) >> 2; + goto out; + } left = buffer[2]; if (ret) goto out; diff --git a/drivers/hwmon/hp_accel.c b/drivers/hwmon/hp_accel.c index bf8d4058057..03705240000 100644 --- a/drivers/hwmon/hp_accel.c +++ b/drivers/hwmon/hp_accel.c @@ -3,7 +3,7 @@ * * Copyright (C) 2007-2008 Yan Burman * Copyright (C) 2008 Eric Piel - * Copyright (C) 2008 Pavel Machek + * Copyright (C) 2008-2009 Pavel Machek * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -36,6 +36,7 @@ #include <linux/freezer.h> #include <linux/version.h> #include <linux/uaccess.h> +#include <linux/leds.h> #include <acpi/acpi_drivers.h> #include <asm/atomic.h> #include "lis3lv02d.h" @@ -43,6 +44,36 @@ #define DRIVER_NAME "lis3lv02d" #define ACPI_MDPS_CLASS "accelerometer" +/* Delayed LEDs infrastructure ------------------------------------ */ + +/* Special LED class that can defer work */ +struct delayed_led_classdev { + struct led_classdev led_classdev; + struct work_struct work; + enum led_brightness new_brightness; + + unsigned int led; /* For driver */ + void (*set_brightness)(struct delayed_led_classdev *data, enum led_brightness value); +}; + +static inline void delayed_set_status_worker(struct work_struct *work) +{ + struct delayed_led_classdev *data = + container_of(work, struct delayed_led_classdev, work); + + data->set_brightness(data, data->new_brightness); +} + +static inline void delayed_sysfs_set(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct delayed_led_classdev *data = container_of(led_cdev, + struct delayed_led_classdev, led_classdev); + data->new_brightness = brightness; + schedule_work(&data->work); +} + +/* HP-specific accelerometer driver ------------------------------------ */ /* For automatic insertion of the module */ static struct acpi_device_id lis3lv02d_device_ids[] = { @@ -154,10 +185,33 @@ static struct dmi_system_id lis3lv02d_dmi_ids[] = { */ }; +static void hpled_set(struct delayed_led_classdev *led_cdev, enum led_brightness value) +{ + acpi_handle handle = adev.device->handle; + unsigned long long ret; /* Not used when writing */ + union acpi_object in_obj[1]; + struct acpi_object_list args = { 1, in_obj }; + + in_obj[0].type = ACPI_TYPE_INTEGER; + in_obj[0].integer.value = !!value; + + acpi_evaluate_integer(handle, "ALED", &args, &ret); +} + +static struct delayed_led_classdev hpled_led = { + .led_classdev = { + .name = "hp::hddprotect", + .default_trigger = "none", + .brightness_set = delayed_sysfs_set, + .flags = LED_CORE_SUSPENDRESUME, + }, + .set_brightness = hpled_set, +}; static int lis3lv02d_add(struct acpi_device *device) { u8 val; + int ret; if (!device) return -EINVAL; @@ -183,7 +237,19 @@ static int lis3lv02d_add(struct acpi_device *device) adev.ac = lis3lv02d_axis_normal; } - return lis3lv02d_init_device(&adev); + INIT_WORK(&hpled_led.work, delayed_set_status_worker); + ret = led_classdev_register(NULL, &hpled_led.led_classdev); + if (ret) + return ret; + + ret = lis3lv02d_init_device(&adev); + if (ret) { + flush_work(&hpled_led.work); + led_classdev_unregister(&hpled_led.led_classdev); + return ret; + } + + return ret; } static int lis3lv02d_remove(struct acpi_device *device, int type) @@ -194,6 +260,9 @@ static int lis3lv02d_remove(struct acpi_device *device, int type) lis3lv02d_joystick_disable(); lis3lv02d_poweroff(device->handle); + flush_work(&hpled_led.work); + led_classdev_unregister(&hpled_led.led_classdev); + return lis3lv02d_remove_fs(); } @@ -256,7 +325,7 @@ static void __exit lis3lv02d_exit_module(void) acpi_bus_unregister_driver(&lis3lv02d_driver); } -MODULE_DESCRIPTION("Glue between LIS3LV02Dx and HP ACPI BIOS"); +MODULE_DESCRIPTION("Glue between LIS3LV02Dx and HP ACPI BIOS and support for disk protection LED."); MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek"); MODULE_LICENSE("GPL"); diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig index a4a1ae21463..742713611bc 100644 --- a/drivers/leds/Kconfig +++ b/drivers/leds/Kconfig @@ -119,13 +119,6 @@ config LEDS_GPIO outputs. To be useful the particular board must have LEDs and they must be connected to the GPIO lines. -config LEDS_HP_DISK - tristate "LED Support for disk protection LED on HP notebooks" - depends on LEDS_CLASS && ACPI - help - This option enable support for disk protection LED, found on - newer HP notebooks. - config LEDS_CLEVO_MAIL tristate "Mail LED on Clevo notebook (EXPERIMENTAL)" depends on LEDS_CLASS && X86 && SERIO_I8042 && DMI && EXPERIMENTAL diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile index bc247cb02e8..9d76f0f160a 100644 --- a/drivers/leds/Makefile +++ b/drivers/leds/Makefile @@ -23,7 +23,6 @@ obj-$(CONFIG_LEDS_HP6XX) += leds-hp6xx.o obj-$(CONFIG_LEDS_FSG) += leds-fsg.o obj-$(CONFIG_LEDS_PCA955X) += leds-pca955x.o obj-$(CONFIG_LEDS_DA903X) += leds-da903x.o -obj-$(CONFIG_LEDS_HP_DISK) += leds-hp-disk.o obj-$(CONFIG_LEDS_WM8350) += leds-wm8350.o # LED Triggers diff --git a/drivers/leds/leds-hp-disk.c b/drivers/leds/leds-hp-disk.c deleted file mode 100644 index d786adc8c5e..00000000000 --- a/drivers/leds/leds-hp-disk.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - * leds-hp-disk.c - driver for HP "hard disk protection" LED - * - * Copyright (C) 2008 Pavel Machek - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/dmi.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/input.h> -#include <linux/kthread.h> -#include <linux/leds.h> -#include <acpi/acpi_drivers.h> - -#define DRIVER_NAME "leds-hp-disk" -#define ACPI_MDPS_CLASS "led" - -/* For automatic insertion of the module */ -static struct acpi_device_id hpled_device_ids[] = { - {"HPQ0004", 0}, /* HP Mobile Data Protection System PNP */ - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, hpled_device_ids); - -struct acpi_hpled { - struct acpi_device *device; /* The ACPI device */ -}; - -static struct acpi_hpled adev; - -static acpi_status hpled_acpi_write(acpi_handle handle, int reg) -{ - unsigned long long ret; /* Not used when writing */ - union acpi_object in_obj[1]; - struct acpi_object_list args = { 1, in_obj }; - - in_obj[0].type = ACPI_TYPE_INTEGER; - in_obj[0].integer.value = reg; - - return acpi_evaluate_integer(handle, "ALED", &args, &ret); -} - -static void hpled_set(struct led_classdev *led_cdev, - enum led_brightness value) -{ - hpled_acpi_write(adev.device->handle, !!value); -} - -static struct led_classdev hpled_led = { - .name = "hp:red:hddprotection", - .default_trigger = "heartbeat", - .brightness_set = hpled_set, - .flags = LED_CORE_SUSPENDRESUME, -}; - -static int hpled_add(struct acpi_device *device) -{ - int ret; - - if (!device) - return -EINVAL; - - adev.device = device; - strcpy(acpi_device_name(device), DRIVER_NAME); - strcpy(acpi_device_class(device), ACPI_MDPS_CLASS); - device->driver_data = &adev; - - ret = led_classdev_register(NULL, &hpled_led); - return ret; -} - -static int hpled_remove(struct acpi_device *device, int type) -{ - if (!device) - return -EINVAL; - - led_classdev_unregister(&hpled_led); - return 0; -} - - - -static struct acpi_driver leds_hp_driver = { - .name = DRIVER_NAME, - .class = ACPI_MDPS_CLASS, - .ids = hpled_device_ids, - .ops = { - .add = hpled_add, - .remove = hpled_remove, - } -}; - -static int __init hpled_init_module(void) -{ - int ret; - - if (acpi_disabled) - return -ENODEV; - - ret = acpi_bus_register_driver(&leds_hp_driver); - if (ret < 0) - return ret; - - printk(KERN_INFO DRIVER_NAME " driver loaded.\n"); - - return 0; -} - -static void __exit hpled_exit_module(void) -{ - acpi_bus_unregister_driver(&leds_hp_driver); -} - -MODULE_DESCRIPTION("Driver for HP disk protection LED"); -MODULE_AUTHOR("Pavel Machek <pavel@suse.cz>"); -MODULE_LICENSE("GPL"); - -module_init(hpled_init_module); -module_exit(hpled_exit_module); diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c index 73b7fb8de47..82fb9958f22 100644 --- a/drivers/misc/sgi-xp/xpc_sn2.c +++ b/drivers/misc/sgi-xp/xpc_sn2.c @@ -899,7 +899,7 @@ xpc_update_partition_info_sn2(struct xpc_partition *part, u8 remote_rp_version, dev_dbg(xpc_part, " remote_vars_pa = 0x%016lx\n", part_sn2->remote_vars_pa); - part->last_heartbeat = remote_vars->heartbeat; + part->last_heartbeat = remote_vars->heartbeat - 1; dev_dbg(xpc_part, " last_heartbeat = 0x%016lx\n", part->last_heartbeat); diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index c4918b86ed1..6478bf63f28 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -1297,6 +1297,7 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp) /* setup */ spin_lock_irq(&serial->serial_lock); tty->driver_data = serial; + tty_kref_put(serial->tty); serial->tty = tty_kref_get(tty); spin_unlock_irq(&serial->serial_lock); @@ -2043,9 +2044,8 @@ static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial) return -2; } - spin_lock(&serial->serial_lock); + /* All callers to put_rxbuf_data hold serial_lock */ tty = tty_kref_get(serial->tty); - spin_unlock(&serial->serial_lock); /* Push data to tty */ if (tty) { @@ -2053,8 +2053,10 @@ static int put_rxbuf_data(struct urb *urb, struct hso_serial *serial) serial->curr_rx_urb_offset; D1("data to push to tty"); while (write_length_remaining) { - if (test_bit(TTY_THROTTLED, &tty->flags)) + if (test_bit(TTY_THROTTLED, &tty->flags)) { + tty_kref_put(tty); return -1; + } curr_write_len = tty_insert_flip_string (tty, urb->transfer_buffer + serial->curr_rx_urb_offset, diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c index cc7eb8767b8..bd56a033bfd 100644 --- a/drivers/rtc/rtc-pxa.c +++ b/drivers/rtc/rtc-pxa.c @@ -27,6 +27,8 @@ #include <linux/interrupt.h> #include <linux/io.h> +#include <mach/hardware.h> + #define TIMER_FREQ CLOCK_TICK_RATE #define RTC_DEF_DIVIDER (32768 - 1) #define RTC_DEF_TRIM 0 diff --git a/drivers/rtc/rtc-twl4030.c b/drivers/rtc/rtc-twl4030.c index 8ce5f74ee45..ad35f76c46b 100644 --- a/drivers/rtc/rtc-twl4030.c +++ b/drivers/rtc/rtc-twl4030.c @@ -120,7 +120,7 @@ static int twl4030_rtc_write_u8(u8 data, u8 reg) static unsigned char rtc_irq_bits; /* - * Enable timer and/or alarm interrupts. + * Enable 1/second update and/or alarm interrupts. */ static int set_rtc_irq_bit(unsigned char bit) { @@ -128,6 +128,7 @@ static int set_rtc_irq_bit(unsigned char bit) int ret; val = rtc_irq_bits | bit; + val &= ~BIT_RTC_INTERRUPTS_REG_EVERY_M; ret = twl4030_rtc_write_u8(val, REG_RTC_INTERRUPTS_REG); if (ret == 0) rtc_irq_bits = val; @@ -136,7 +137,7 @@ static int set_rtc_irq_bit(unsigned char bit) } /* - * Disable timer and/or alarm interrupts. + * Disable update and/or alarm interrupts. */ static int mask_rtc_irq_bit(unsigned char bit) { @@ -151,7 +152,7 @@ static int mask_rtc_irq_bit(unsigned char bit) return ret; } -static inline int twl4030_rtc_alarm_irq_set_state(int enabled) +static int twl4030_rtc_alarm_irq_enable(struct device *dev, unsigned enabled) { int ret; @@ -163,7 +164,7 @@ static inline int twl4030_rtc_alarm_irq_set_state(int enabled) return ret; } -static inline int twl4030_rtc_irq_set_state(int enabled) +static int twl4030_rtc_update_irq_enable(struct device *dev, unsigned enabled) { int ret; @@ -292,7 +293,7 @@ static int twl4030_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) unsigned char alarm_data[ALL_TIME_REGS + 1]; int ret; - ret = twl4030_rtc_alarm_irq_set_state(0); + ret = twl4030_rtc_alarm_irq_enable(dev, 0); if (ret) goto out; @@ -312,35 +313,11 @@ static int twl4030_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) } if (alm->enabled) - ret = twl4030_rtc_alarm_irq_set_state(1); + ret = twl4030_rtc_alarm_irq_enable(dev, 1); out: return ret; } -#ifdef CONFIG_RTC_INTF_DEV - -static int twl4030_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) -{ - switch (cmd) { - case RTC_AIE_OFF: - return twl4030_rtc_alarm_irq_set_state(0); - case RTC_AIE_ON: - return twl4030_rtc_alarm_irq_set_state(1); - case RTC_UIE_OFF: - return twl4030_rtc_irq_set_state(0); - case RTC_UIE_ON: - return twl4030_rtc_irq_set_state(1); - - default: - return -ENOIOCTLCMD; - } -} - -#else -#define twl4030_rtc_ioctl NULL -#endif - static irqreturn_t twl4030_rtc_interrupt(int irq, void *rtc) { unsigned long events = 0; @@ -400,11 +377,12 @@ out: } static struct rtc_class_ops twl4030_rtc_ops = { - .ioctl = twl4030_rtc_ioctl, .read_time = twl4030_rtc_read_time, .set_time = twl4030_rtc_set_time, .read_alarm = twl4030_rtc_read_alarm, .set_alarm = twl4030_rtc_set_alarm, + .alarm_irq_enable = twl4030_rtc_alarm_irq_enable, + .update_irq_enable = twl4030_rtc_update_irq_enable, }; /*----------------------------------------------------------------------*/ @@ -422,7 +400,7 @@ static int __devinit twl4030_rtc_probe(struct platform_device *pdev) rtc = rtc_device_register(pdev->name, &pdev->dev, &twl4030_rtc_ops, THIS_MODULE); if (IS_ERR(rtc)) { - ret = -EINVAL; + ret = PTR_ERR(rtc); dev_err(&pdev->dev, "can't register RTC device, err %ld\n", PTR_ERR(rtc)); goto out0; @@ -432,7 +410,6 @@ static int __devinit twl4030_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, rtc); ret = twl4030_rtc_read_u8(&rd_reg, REG_RTC_STATUS_REG); - if (ret < 0) goto out1; @@ -475,7 +452,6 @@ static int __devinit twl4030_rtc_probe(struct platform_device *pdev) return ret; - out2: free_irq(irq, rtc); out1: @@ -506,8 +482,9 @@ static int __devexit twl4030_rtc_remove(struct platform_device *pdev) static void twl4030_rtc_shutdown(struct platform_device *pdev) { - mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M | - BIT_RTC_INTERRUPTS_REG_IT_ALARM_M); + /* mask timer interrupts, but leave alarm interrupts on to enable + power-on when alarm is triggered */ + mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M); } #ifdef CONFIG_PM diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c index c088146b751..2a3671233b1 100644 --- a/drivers/serial/8250_pci.c +++ b/drivers/serial/8250_pci.c @@ -602,6 +602,10 @@ static int pci_netmos_init(struct pci_dev *dev) /* subdevice 0x00PS means <P> parallel, <S> serial */ unsigned int num_serial = dev->subsystem_device & 0xf; + if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM && + dev->subsystem_device == 0x0299) + return 0; + if (num_serial == 0) return -ENODEV; return num_serial; @@ -3096,6 +3100,10 @@ static struct pci_device_id serial_pci_tbl[] = { 0, pbn_b0_8_115200 }, + { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835, + PCI_VENDOR_ID_IBM, 0x0299, + 0, 0, pbn_b0_bt_2_115200 }, + /* * These entries match devices with class COMMUNICATION_SERIAL, * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c index fde7f9ccf57..bbcfc26a3b6 100644 --- a/drivers/serial/8250_pnp.c +++ b/drivers/serial/8250_pnp.c @@ -270,6 +270,8 @@ static const struct pnp_device_id pnp_dev_table[] = { { "RSS0250", 0 }, /* SupraExpress 28.8 Data/Fax PnP modem */ { "SUP1310", 0 }, + /* SupraExpress 336i PnP Voice Modem */ + { "SUP1381", 0 }, /* SupraExpress 33.6 Data/Fax PnP modem */ { "SUP1421", 0 }, /* SupraExpress 33.6 Data/Fax PnP modem */ diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index d5efd6c7790..89362d733d6 100644 --- a/drivers/serial/atmel_serial.c +++ b/drivers/serial/atmel_serial.c @@ -579,7 +579,7 @@ static void atmel_tx_dma(struct uart_port *port) /* disable PDC transmit */ UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS); - if (!uart_circ_empty(xmit)) { + if (!uart_circ_empty(xmit) && !uart_tx_stopped(port)) { dma_sync_single_for_device(port->dev, pdc->dma_addr, pdc->dma_size, diff --git a/drivers/serial/pnx8xxx_uart.c b/drivers/serial/pnx8xxx_uart.c index 22e30d21225..1bb8f1b4576 100644 --- a/drivers/serial/pnx8xxx_uart.c +++ b/drivers/serial/pnx8xxx_uart.c @@ -187,7 +187,7 @@ static void pnx8xxx_rx_chars(struct pnx8xxx_port *sport) status = FIFO_TO_SM(serial_in(sport, PNX8XXX_FIFO)) | ISTAT_TO_SM(serial_in(sport, PNX8XXX_ISTAT)); while (status & FIFO_TO_SM(PNX8XXX_UART_FIFO_RXFIFO)) { - ch = serial_in(sport, PNX8XXX_FIFO); + ch = serial_in(sport, PNX8XXX_FIFO) & 0xff; sport->port.icount.rx++; @@ -198,9 +198,16 @@ static void pnx8xxx_rx_chars(struct pnx8xxx_port *sport) * out of the main execution path */ if (status & (FIFO_TO_SM(PNX8XXX_UART_FIFO_RXFE | - PNX8XXX_UART_FIFO_RXPAR) | + PNX8XXX_UART_FIFO_RXPAR | + PNX8XXX_UART_FIFO_RXBRK) | ISTAT_TO_SM(PNX8XXX_UART_INT_RXOVRN))) { - if (status & FIFO_TO_SM(PNX8XXX_UART_FIFO_RXPAR)) + if (status & FIFO_TO_SM(PNX8XXX_UART_FIFO_RXBRK)) { + status &= ~(FIFO_TO_SM(PNX8XXX_UART_FIFO_RXFE) | + FIFO_TO_SM(PNX8XXX_UART_FIFO_RXPAR)); + sport->port.icount.brk++; + if (uart_handle_break(&sport->port)) + goto ignore_char; + } else if (status & FIFO_TO_SM(PNX8XXX_UART_FIFO_RXPAR)) sport->port.icount.parity++; else if (status & FIFO_TO_SM(PNX8XXX_UART_FIFO_RXFE)) sport->port.icount.frame++; @@ -284,14 +291,8 @@ static irqreturn_t pnx8xxx_int(int irq, void *dev_id) /* Get the interrupts */ status = serial_in(sport, PNX8XXX_ISTAT) & serial_in(sport, PNX8XXX_IEN); - /* Break signal received */ - if (status & PNX8XXX_UART_INT_BREAK) { - sport->port.icount.brk++; - uart_handle_break(&sport->port); - } - - /* Byte received */ - if (status & PNX8XXX_UART_INT_RX) + /* Byte or break signal received */ + if (status & (PNX8XXX_UART_INT_RX | PNX8XXX_UART_INT_BREAK)) pnx8xxx_rx_chars(sport); /* TX holding register empty - transmit a byte */ diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c index 5e39bac9c51..56ff3e6864e 100644 --- a/drivers/spi/atmel_spi.c +++ b/drivers/spi/atmel_spi.c @@ -670,8 +670,7 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg) dev_dbg(controller, "new message %p submitted for %s\n", msg, spi->dev.bus_id); - if (unlikely(list_empty(&msg->transfers) - || !spi->max_speed_hz)) + if (unlikely(list_empty(&msg->transfers))) return -EINVAL; if (as->stopping) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index d5d0e40b1e2..94d5ee263c2 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1554,7 +1554,7 @@ static int usb_configure_device_otg(struct usb_device *udev) * (Includes HNP test device.) */ if (udev->bus->b_hnp_enable || udev->bus->is_b_host) { - err = usb_port_suspend(udev); + err = usb_port_suspend(udev, PMSG_SUSPEND); if (err < 0) dev_dbg(&udev->dev, "HNP fail, %d\n", err); } diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index ef6cfa5a447..c70a8f667d8 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -2030,7 +2030,7 @@ static void ftdi_process_read(struct work_struct *work) spin_unlock_irqrestore(&priv->rx_lock, flags); dbg("%s - deferring remainder until unthrottled", __func__); - return; + goto out; } spin_unlock_irqrestore(&priv->rx_lock, flags); /* if the port is closed stop trying to read */ diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c index 7644ed24956..37e60b1d2ed 100644 --- a/drivers/video/bf54x-lq043fb.c +++ b/drivers/video/bf54x-lq043fb.c @@ -335,7 +335,20 @@ static int bfin_bf54x_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { - if (var->bits_per_pixel != LCD_BPP) { + switch (var->bits_per_pixel) { + case 24:/* TRUECOLOUR, 16m */ + var->red.offset = 16; + var->green.offset = 8; + var->blue.offset = 0; + var->red.length = var->green.length = var->blue.length = 8; + var->transp.offset = 0; + var->transp.length = 0; + var->transp.msb_right = 0; + var->red.msb_right = 0; + var->green.msb_right = 0; + var->blue.msb_right = 0; + break; + default: pr_debug("%s: depth not supported: %u BPP\n", __func__, var->bits_per_pixel); return -EINVAL; diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c index a9b3ada05d9..2a423d3a2a8 100644 --- a/drivers/video/bfin-t350mcqb-fb.c +++ b/drivers/video/bfin-t350mcqb-fb.c @@ -254,7 +254,20 @@ static int bfin_t350mcqb_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) { - if (var->bits_per_pixel != LCD_BPP) { + switch (var->bits_per_pixel) { + case 24:/* TRUECOLOUR, 16m */ + var->red.offset = 0; + var->green.offset = 8; + var->blue.offset = 16; + var->red.length = var->green.length = var->blue.length = 8; + var->transp.offset = 0; + var->transp.length = 0; + var->transp.msb_right = 0; + var->red.msb_right = 0; + var->green.msb_right = 0; + var->blue.msb_right = 0; + break; + default: pr_debug("%s: depth not supported: %u BPP\n", __func__, var->bits_per_pixel); return -EINVAL; diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 0a14b495532..7256cf242eb 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -38,6 +38,7 @@ #include <linux/namei.h> #include <linux/miscdevice.h> #include <linux/version.h> +#include <linux/magic.h> #include "compat.h" #include "ctree.h" #include "disk-io.h" @@ -51,7 +52,6 @@ #include "export.h" #include "compression.h" -#define BTRFS_SUPER_MAGIC 0x9123683E static struct super_operations btrfs_super_ops; diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c index 9a0fc400f91..2999d72153b 100644 --- a/fs/ext2/dir.c +++ b/fs/ext2/dir.c @@ -95,10 +95,13 @@ static int ext2_commit_chunk(struct page *page, loff_t pos, unsigned len) mark_inode_dirty(dir); } - if (IS_DIRSYNC(dir)) + if (IS_DIRSYNC(dir)) { err = write_one_page(page, 1); - else + if (!err) + err = ext2_sync_inode(dir); + } else { unlock_page(page); + } return err; } diff --git a/fs/squashfs/squashfs_fs.h b/fs/squashfs/squashfs_fs.h index 6840da1bf21..283daafc568 100644 --- a/fs/squashfs/squashfs_fs.h +++ b/fs/squashfs/squashfs_fs.h @@ -26,7 +26,6 @@ #define SQUASHFS_CACHED_FRAGMENTS CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE #define SQUASHFS_MAJOR 4 #define SQUASHFS_MINOR 0 -#define SQUASHFS_MAGIC 0x73717368 #define SQUASHFS_START 0 /* size of metadata (inode and directory) blocks */ diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c index a0466d7467b..071df5b5b49 100644 --- a/fs/squashfs/super.c +++ b/fs/squashfs/super.c @@ -35,6 +35,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/zlib.h> +#include <linux/magic.h> #include "squashfs_fs.h" #include "squashfs_fs_sb.h" diff --git a/include/asm-generic/rtc.h b/include/asm-generic/rtc.h index 89061c1a67d..763e3b060f4 100644 --- a/include/asm-generic/rtc.h +++ b/include/asm-generic/rtc.h @@ -42,7 +42,7 @@ static inline unsigned char rtc_is_updating(void) return uip; } -static inline unsigned int get_rtc_time(struct rtc_time *time) +static inline unsigned int __get_rtc_time(struct rtc_time *time) { unsigned char ctrl; unsigned long flags; @@ -108,8 +108,12 @@ static inline unsigned int get_rtc_time(struct rtc_time *time) return RTC_24H; } +#ifndef get_rtc_time +#define get_rtc_time __get_rtc_time +#endif + /* Set the current date and time in the real time clock. */ -static inline int set_rtc_time(struct rtc_time *time) +static inline int __set_rtc_time(struct rtc_time *time) { unsigned long flags; unsigned char mon, day, hrs, min, sec; @@ -190,11 +194,15 @@ static inline int set_rtc_time(struct rtc_time *time) return 0; } +#ifndef set_rtc_time +#define set_rtc_time __set_rtc_time +#endif + static inline unsigned int get_rtc_ss(void) { struct rtc_time h; - get_rtc_time(&h); + __get_rtc_time(&h); return h.tm_sec; } diff --git a/include/linux/agpgart.h b/include/linux/agpgart.h index c8fdb6e658e..110c600c885 100644 --- a/include/linux/agpgart.h +++ b/include/linux/agpgart.h @@ -52,7 +52,6 @@ #ifndef __KERNEL__ #include <linux/types.h> -#include <asm/types.h> struct agp_version { __u16 major; diff --git a/include/linux/atm_idt77105.h b/include/linux/atm_idt77105.h index 05621cf2070..8b724000aa5 100644 --- a/include/linux/atm_idt77105.h +++ b/include/linux/atm_idt77105.h @@ -7,7 +7,7 @@ #ifndef LINUX_ATM_IDT77105_H #define LINUX_ATM_IDT77105_H -#include <asm/types.h> +#include <linux/types.h> #include <linux/atmioc.h> #include <linux/atmdev.h> diff --git a/include/linux/capi.h b/include/linux/capi.h index fdebaaa9f66..65100d6cb89 100644 --- a/include/linux/capi.h +++ b/include/linux/capi.h @@ -12,7 +12,7 @@ #ifndef __LINUX_CAPI_H__ #define __LINUX_CAPI_H__ -#include <asm/types.h> +#include <linux/types.h> #include <linux/ioctl.h> #ifndef __KERNEL__ #include <linux/kernelcapi.h> diff --git a/include/linux/connector.h b/include/linux/connector.h index 5c7f9468f75..34f2789d9b9 100644 --- a/include/linux/connector.h +++ b/include/linux/connector.h @@ -22,7 +22,7 @@ #ifndef __CONNECTOR_H #define __CONNECTOR_H -#include <asm/types.h> +#include <linux/types.h> #define CN_IDX_CONNECTOR 0xffffffff #define CN_VAL_CONNECTOR 0xffffffff diff --git a/include/linux/cyclades.h b/include/linux/cyclades.h index 2d3d1e04ba9..d06fbf28634 100644 --- a/include/linux/cyclades.h +++ b/include/linux/cyclades.h @@ -150,8 +150,6 @@ struct CYZ_BOOT_CTRL { * architectures and compilers. */ -#include <asm/types.h> - typedef __u64 ucdouble; /* 64 bits, unsigned */ typedef __u32 uclong; /* 32 bits, unsigned */ typedef __u16 ucshort; /* 16 bits, unsigned */ diff --git a/include/linux/fb.h b/include/linux/fb.h index 1ee63df5be9..818fe21257e 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -1,7 +1,7 @@ #ifndef _LINUX_FB_H #define _LINUX_FB_H -#include <asm/types.h> +#include <linux/types.h> #include <linux/i2c.h> struct dentry; diff --git a/include/linux/if_pppol2tp.h b/include/linux/if_pppol2tp.h index a7d6a2234b3..c7a66882b6d 100644 --- a/include/linux/if_pppol2tp.h +++ b/include/linux/if_pppol2tp.h @@ -15,7 +15,7 @@ #ifndef __LINUX_IF_PPPOL2TP_H #define __LINUX_IF_PPPOL2TP_H -#include <asm/types.h> +#include <linux/types.h> #ifdef __KERNEL__ #include <linux/in.h> diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h index 6fb7f178857..30c88b2245f 100644 --- a/include/linux/if_pppox.h +++ b/include/linux/if_pppox.h @@ -17,7 +17,7 @@ #define __LINUX_IF_PPPOX_H -#include <asm/types.h> +#include <linux/types.h> #include <asm/byteorder.h> #ifdef __KERNEL__ diff --git a/include/linux/input.h b/include/linux/input.h index 9a6355f74db..1249a0c20a3 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -16,7 +16,7 @@ #include <sys/time.h> #include <sys/ioctl.h> #include <sys/types.h> -#include <asm/types.h> +#include <linux/types.h> #endif /* diff --git a/include/linux/ioport.h b/include/linux/ioport.h index f6bb2ca8e3b..32e4b2f7229 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -143,7 +143,8 @@ static inline unsigned long resource_type(struct resource *res) extern struct resource * __request_region(struct resource *, resource_size_t start, - resource_size_t n, const char *name, int relaxed); + resource_size_t n, + const char *name, int flags); /* Compatibility cruft */ #define release_region(start,n) __release_region(&ioport_resource, (start), (n)) diff --git a/include/linux/jbd.h b/include/linux/jbd.h index 6384b19efe6..64246dce566 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -614,6 +614,8 @@ struct transaction_s * @j_wbufsize: maximum number of buffer_heads allowed in j_wbuf, the * number that will fit in j_blocksize * @j_last_sync_writer: most recent pid which did a synchronous write + * @j_average_commit_time: the average amount of time in nanoseconds it + * takes to commit a transaction to the disk. * @j_private: An opaque pointer to fs-private information. */ diff --git a/include/linux/joystick.h b/include/linux/joystick.h index b5e051295a6..9e20c29c1e1 100644 --- a/include/linux/joystick.h +++ b/include/linux/joystick.h @@ -27,7 +27,7 @@ * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic */ -#include <asm/types.h> +#include <linux/types.h> #include <linux/input.h> /* diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 35525ac6333..5715f190760 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -7,7 +7,7 @@ * Note: you must update KVM_API_VERSION if you change this interface. */ -#include <asm/types.h> +#include <linux/types.h> #include <linux/compiler.h> #include <linux/ioctl.h> #include <asm/kvm.h> diff --git a/include/linux/loop.h b/include/linux/loop.h index 46169a7b559..6ffd6db5bb0 100644 --- a/include/linux/loop.h +++ b/include/linux/loop.h @@ -80,7 +80,7 @@ enum { }; #include <asm/posix_types.h> /* for __kernel_old_dev_t */ -#include <asm/types.h> /* for __u64 */ +#include <linux/types.h> /* for __u64 */ /* Backwards compatibility version */ struct loop_info { diff --git a/include/linux/magic.h b/include/linux/magic.h index 439f6f3cb0c..0b4df7eba85 100644 --- a/include/linux/magic.h +++ b/include/linux/magic.h @@ -10,11 +10,13 @@ #define SYSFS_MAGIC 0x62656572 #define SECURITYFS_MAGIC 0x73636673 #define TMPFS_MAGIC 0x01021994 +#define SQUASHFS_MAGIC 0x73717368 #define EFS_SUPER_MAGIC 0x414A53 #define EXT2_SUPER_MAGIC 0xEF53 #define EXT3_SUPER_MAGIC 0xEF53 #define XENFS_SUPER_MAGIC 0xabba1974 #define EXT4_SUPER_MAGIC 0xEF53 +#define BTRFS_SUPER_MAGIC 0x9123683E #define HPFS_SUPER_MAGIC 0xf995e849 #define ISOFS_SUPER_MAGIC 0x9660 #define JFFS2_SUPER_MAGIC 0x72b6 diff --git a/include/linux/matroxfb.h b/include/linux/matroxfb.h index ae5b0949306..404f678e734 100644 --- a/include/linux/matroxfb.h +++ b/include/linux/matroxfb.h @@ -2,7 +2,7 @@ #define __LINUX_MATROXFB_H__ #include <asm/ioctl.h> -#include <asm/types.h> +#include <linux/types.h> #include <linux/videodev2.h> struct matroxioc_output_mode { diff --git a/include/linux/phantom.h b/include/linux/phantom.h index 02268c54c25..94dd6645c60 100644 --- a/include/linux/phantom.h +++ b/include/linux/phantom.h @@ -10,7 +10,7 @@ #ifndef __PHANTOM_H #define __PHANTOM_H -#include <asm/types.h> +#include <linux/types.h> /* PHN_(G/S)ET_REG param */ struct phm_reg { diff --git a/include/linux/radeonfb.h b/include/linux/radeonfb.h index 5bd8975ed78..8c4bbdecc44 100644 --- a/include/linux/radeonfb.h +++ b/include/linux/radeonfb.h @@ -2,7 +2,7 @@ #define __LINUX_RADEONFB_H__ #include <asm/ioctl.h> -#include <asm/types.h> +#include <linux/types.h> #define ATY_RADEON_LCD_ON 0x00000001 #define ATY_RADEON_CRT_ON 0x00000002 diff --git a/include/linux/res_counter.h b/include/linux/res_counter.h index dede0a2cfc4..4c5bcf6ca7e 100644 --- a/include/linux/res_counter.h +++ b/include/linux/res_counter.h @@ -9,7 +9,7 @@ * * Author: Pavel Emelianov <xemul@openvz.org> * - * See Documentation/controllers/resource_counter.txt for more + * See Documentation/cgroups/resource_counter.txt for more * info about what this counter is. */ diff --git a/init/Kconfig b/init/Kconfig index a724a149bf3..2af83825634 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -323,26 +323,26 @@ config CGROUP_SCHED This option allows you to create arbitrary task groups using the "cgroup" pseudo filesystem and control the cpu bandwidth allocated to each such task group. - Refer to Documentation/cgroups.txt for more information - on "cgroup" pseudo filesystem. + Refer to Documentation/cgroups/cgroups.txt for more + information on "cgroup" pseudo filesystem. endchoice -menu "Control Group support" -config CGROUPS - bool "Control Group support" +menuconfig CGROUPS + boolean "Control Group support" help - This option add support for grouping sets of processes together, for + This option adds support for grouping sets of processes together, for use with process control subsystems such as Cpusets, CFS, memory controls or device isolation. See - - Documentation/cpusets.txt (Cpusets) - Documentation/scheduler/sched-design-CFS.txt (CFS) - - Documentation/cgroups/ (features for grouping, isolation) - - Documentation/controllers/ (features for resource control) + - Documentation/cgroups/ (features for grouping, isolation + and resource control) Say N if unsure. +if CGROUPS + config CGROUP_DEBUG bool "Example debug cgroup subsystem" depends on CGROUPS @@ -350,24 +350,24 @@ config CGROUP_DEBUG help This option enables a simple cgroup subsystem that exports useful debugging information about the cgroups - framework + framework. - Say N if unsure + Say N if unsure. config CGROUP_NS - bool "Namespace cgroup subsystem" - depends on CGROUPS - help - Provides a simple namespace cgroup subsystem to - provide hierarchical naming of sets of namespaces, - for instance virtual servers and checkpoint/restart - jobs. + bool "Namespace cgroup subsystem" + depends on CGROUPS + help + Provides a simple namespace cgroup subsystem to + provide hierarchical naming of sets of namespaces, + for instance virtual servers and checkpoint/restart + jobs. config CGROUP_FREEZER - bool "control group freezer subsystem" - depends on CGROUPS - help - Provides a way to freeze and unfreeze all tasks in a + bool "Freezer cgroup subsystem" + depends on CGROUPS + help + Provides a way to freeze and unfreeze all tasks in a cgroup. config CGROUP_DEVICE @@ -388,18 +388,23 @@ config CPUSETS Say N if unsure. +config PROC_PID_CPUSET + bool "Include legacy /proc/<pid>/cpuset file" + depends on CPUSETS + default y + config CGROUP_CPUACCT bool "Simple CPU accounting cgroup subsystem" depends on CGROUPS help Provides a simple Resource Controller for monitoring the - total CPU consumed by the tasks in a cgroup + total CPU consumed by the tasks in a cgroup. config RESOURCE_COUNTERS bool "Resource counters" help This option enables controller independent resource accounting - infrastructure that works with cgroups + infrastructure that works with cgroups. depends on CGROUPS config CGROUP_MEM_RES_CTLR @@ -425,9 +430,6 @@ config CGROUP_MEM_RES_CTLR This config option also selects MM_OWNER config option, which could in turn add some fork/exit overhead. -config MM_OWNER - bool - config CGROUP_MEM_RES_CTLR_SWAP bool "Memory Resource Controller Swap Extension(EXPERIMENTAL)" depends on CGROUP_MEM_RES_CTLR && SWAP && EXPERIMENTAL @@ -444,8 +446,10 @@ config CGROUP_MEM_RES_CTLR_SWAP there will be no overhead from this. Even when you set this config=y, if boot option "noswapaccount" is set, swap will not be accounted. +endif # CGROUPS -endmenu +config MM_OWNER + bool config SYSFS_DEPRECATED bool @@ -483,11 +487,6 @@ config SYSFS_DEPRECATED_V2 if the original kernel, that came with your distribution, has this option set to N. -config PROC_PID_CPUSET - bool "Include legacy /proc/<pid>/cpuset file" - depends on CPUSETS - default y - config RELAY bool "Kernel->user space relay support (formerly relayfs)" help diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 647c77a88fc..a85678865c5 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c @@ -568,7 +568,7 @@ update_domain_attr_tree(struct sched_domain_attr *dattr, struct cpuset *c) * load balancing domains (sched domains) as specified by that partial * partition. * - * See "What is sched_load_balance" in Documentation/cpusets.txt + * See "What is sched_load_balance" in Documentation/cgroups/cpusets.txt * for a background explanation of this. * * Does not return errors, on the theory that the callers of this diff --git a/kernel/resource.c b/kernel/resource.c index ca6a1536b20..fd5d7d574bb 100644 --- a/kernel/resource.c +++ b/kernel/resource.c @@ -620,6 +620,7 @@ resource_size_t resource_alignment(struct resource *res) * @start: resource start address * @n: resource region size * @name: reserving caller's ID string + * @flags: IO resource flags */ struct resource * __request_region(struct resource *parent, resource_size_t start, resource_size_t n, diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 3e38b74b612..368d1638ee7 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -144,6 +144,7 @@ extern int acct_parm[]; #ifdef CONFIG_IA64 extern int no_unaligned_warning; +extern int unaligned_dump_stack; #endif #ifdef CONFIG_RT_MUTEXES @@ -781,6 +782,14 @@ static struct ctl_table kern_table[] = { .mode = 0644, .proc_handler = &proc_dointvec, }, + { + .ctl_name = CTL_UNNUMBERED, + .procname = "unaligned-dump-stack", + .data = &unaligned_dump_stack, + .maxlen = sizeof (int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, #endif #ifdef CONFIG_DETECT_SOFTLOCKUP { diff --git a/lib/idr.c b/lib/idr.c index 1c4f9281f41..c11c5765cde 100644 --- a/lib/idr.c +++ b/lib/idr.c @@ -121,7 +121,7 @@ int idr_pre_get(struct idr *idp, gfp_t gfp_mask) { while (idp->id_free_cnt < IDR_FREE_MAX) { struct idr_layer *new; - new = kmem_cache_alloc(idr_layer_cache, gfp_mask); + new = kmem_cache_zalloc(idr_layer_cache, gfp_mask); if (new == NULL) return (0); move_to_free_list(idp, new); @@ -292,7 +292,7 @@ static int idr_get_new_above_int(struct idr *idp, void *ptr, int starting_id) * and go back to the idr_pre_get() call. If the idr is full, it will * return -ENOSPC. * - * @id returns a value in the range 0 ... 0x7fffffff + * @id returns a value in the range @starting_id ... 0x7fffffff */ int idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id) { @@ -623,16 +623,10 @@ void *idr_replace(struct idr *idp, void *ptr, int id) } EXPORT_SYMBOL(idr_replace); -static void idr_cache_ctor(void *idr_layer) -{ - memset(idr_layer, 0, sizeof(struct idr_layer)); -} - void __init idr_init_cache(void) { idr_layer_cache = kmem_cache_create("idr_layer_cache", - sizeof(struct idr_layer), 0, SLAB_PANIC, - idr_cache_ctor); + sizeof(struct idr_layer), 0, SLAB_PANIC, NULL); } /** @@ -723,7 +717,7 @@ EXPORT_SYMBOL(ida_pre_get); * and go back to the ida_pre_get() call. If the ida is full, it will * return -ENOSPC. * - * @p_id returns a value in the range 0 ... 0x7fffffff. + * @p_id returns a value in the range @starting_id ... 0x7fffffff. */ int ida_get_new_above(struct ida *ida, int starting_id, int *p_id) { diff --git a/mm/memcontrol.c b/mm/memcontrol.c index e2996b80601..4d0ea3ceba6 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -358,6 +358,10 @@ void mem_cgroup_rotate_lru_list(struct page *page, enum lru_list lru) return; pc = lookup_page_cgroup(page); + /* + * Used bit is set without atomic ops but after smp_wmb(). + * For making pc->mem_cgroup visible, insert smp_rmb() here. + */ smp_rmb(); /* unused page is not rotated. */ if (!PageCgroupUsed(pc)) @@ -374,7 +378,10 @@ void mem_cgroup_add_lru_list(struct page *page, enum lru_list lru) if (mem_cgroup_disabled()) return; pc = lookup_page_cgroup(page); - /* barrier to sync with "charge" */ + /* + * Used bit is set without atomic ops but after smp_wmb(). + * For making pc->mem_cgroup visible, insert smp_rmb() here. + */ smp_rmb(); if (!PageCgroupUsed(pc)) return; @@ -559,6 +566,14 @@ mem_cgroup_get_reclaim_stat_from_page(struct page *page) return NULL; pc = lookup_page_cgroup(page); + /* + * Used bit is set without atomic ops but after smp_wmb(). + * For making pc->mem_cgroup visible, insert smp_rmb() here. + */ + smp_rmb(); + if (!PageCgroupUsed(pc)) + return NULL; + mz = page_cgroup_zoneinfo(pc); if (!mz) return NULL; @@ -618,7 +633,7 @@ unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, * called with hierarchy_mutex held */ static struct mem_cgroup * -mem_cgroup_get_next_node(struct mem_cgroup *curr, struct mem_cgroup *root_mem) +__mem_cgroup_get_next_node(struct mem_cgroup *curr, struct mem_cgroup *root_mem) { struct cgroup *cgroup, *curr_cgroup, *root_cgroup; @@ -629,19 +644,16 @@ mem_cgroup_get_next_node(struct mem_cgroup *curr, struct mem_cgroup *root_mem) /* * Walk down to children */ - mem_cgroup_put(curr); cgroup = list_entry(curr_cgroup->children.next, struct cgroup, sibling); curr = mem_cgroup_from_cont(cgroup); - mem_cgroup_get(curr); goto done; } visit_parent: if (curr_cgroup == root_cgroup) { - mem_cgroup_put(curr); - curr = root_mem; - mem_cgroup_get(curr); + /* caller handles NULL case */ + curr = NULL; goto done; } @@ -649,11 +661,9 @@ visit_parent: * Goto next sibling */ if (curr_cgroup->sibling.next != &curr_cgroup->parent->children) { - mem_cgroup_put(curr); cgroup = list_entry(curr_cgroup->sibling.next, struct cgroup, sibling); curr = mem_cgroup_from_cont(cgroup); - mem_cgroup_get(curr); goto done; } @@ -664,7 +674,6 @@ visit_parent: goto visit_parent; done: - root_mem->last_scanned_child = curr; return curr; } @@ -674,40 +683,46 @@ done: * that to reclaim free pages from. */ static struct mem_cgroup * -mem_cgroup_get_first_node(struct mem_cgroup *root_mem) +mem_cgroup_get_next_node(struct mem_cgroup *root_mem) { struct cgroup *cgroup; - struct mem_cgroup *ret; + struct mem_cgroup *orig, *next; bool obsolete; - obsolete = mem_cgroup_is_obsolete(root_mem->last_scanned_child); - /* * Scan all children under the mem_cgroup mem */ mutex_lock(&mem_cgroup_subsys.hierarchy_mutex); + + orig = root_mem->last_scanned_child; + obsolete = mem_cgroup_is_obsolete(orig); + if (list_empty(&root_mem->css.cgroup->children)) { - ret = root_mem; + /* + * root_mem might have children before and last_scanned_child + * may point to one of them. We put it later. + */ + if (orig) + VM_BUG_ON(!obsolete); + next = NULL; goto done; } - if (!root_mem->last_scanned_child || obsolete) { - - if (obsolete && root_mem->last_scanned_child) - mem_cgroup_put(root_mem->last_scanned_child); - + if (!orig || obsolete) { cgroup = list_first_entry(&root_mem->css.cgroup->children, struct cgroup, sibling); - ret = mem_cgroup_from_cont(cgroup); - mem_cgroup_get(ret); + next = mem_cgroup_from_cont(cgroup); } else - ret = mem_cgroup_get_next_node(root_mem->last_scanned_child, - root_mem); + next = __mem_cgroup_get_next_node(orig, root_mem); done: - root_mem->last_scanned_child = ret; + if (next) + mem_cgroup_get(next); + root_mem->last_scanned_child = next; + if (orig) + mem_cgroup_put(orig); mutex_unlock(&mem_cgroup_subsys.hierarchy_mutex); - return ret; + return (next) ? next : root_mem; } static bool mem_cgroup_check_under_limit(struct mem_cgroup *mem) @@ -758,28 +773,25 @@ static int mem_cgroup_hierarchical_reclaim(struct mem_cgroup *root_mem, * but there might be left over accounting, even after children * have left. */ - ret = try_to_free_mem_cgroup_pages(root_mem, gfp_mask, noswap, + ret += try_to_free_mem_cgroup_pages(root_mem, gfp_mask, noswap, get_swappiness(root_mem)); if (mem_cgroup_check_under_limit(root_mem)) - return 0; + return 1; /* indicate reclaim has succeeded */ if (!root_mem->use_hierarchy) return ret; - next_mem = mem_cgroup_get_first_node(root_mem); + next_mem = mem_cgroup_get_next_node(root_mem); while (next_mem != root_mem) { if (mem_cgroup_is_obsolete(next_mem)) { - mem_cgroup_put(next_mem); - next_mem = mem_cgroup_get_first_node(root_mem); + next_mem = mem_cgroup_get_next_node(root_mem); continue; } - ret = try_to_free_mem_cgroup_pages(next_mem, gfp_mask, noswap, + ret += try_to_free_mem_cgroup_pages(next_mem, gfp_mask, noswap, get_swappiness(next_mem)); if (mem_cgroup_check_under_limit(root_mem)) - return 0; - mutex_lock(&mem_cgroup_subsys.hierarchy_mutex); - next_mem = mem_cgroup_get_next_node(next_mem, root_mem); - mutex_unlock(&mem_cgroup_subsys.hierarchy_mutex); + return 1; /* indicate reclaim has succeeded */ + next_mem = mem_cgroup_get_next_node(root_mem); } return ret; } @@ -863,6 +875,8 @@ static int __mem_cgroup_try_charge(struct mm_struct *mm, ret = mem_cgroup_hierarchical_reclaim(mem_over_limit, gfp_mask, noswap); + if (ret) + continue; /* * try_to_free_mem_cgroup_pages() might not give us a full @@ -979,14 +993,15 @@ static int mem_cgroup_move_account(struct page_cgroup *pc, if (pc->mem_cgroup != from) goto out; - css_put(&from->css); res_counter_uncharge(&from->res, PAGE_SIZE); mem_cgroup_charge_statistics(from, pc, false); if (do_swap_account) res_counter_uncharge(&from->memsw, PAGE_SIZE); + css_put(&from->css); + + css_get(&to->css); pc->mem_cgroup = to; mem_cgroup_charge_statistics(to, pc, true); - css_get(&to->css); ret = 0; out: unlock_page_cgroup(pc); @@ -1019,8 +1034,10 @@ static int mem_cgroup_move_parent(struct page_cgroup *pc, if (ret || !parent) return ret; - if (!get_page_unless_zero(page)) - return -EBUSY; + if (!get_page_unless_zero(page)) { + ret = -EBUSY; + goto uncharge; + } ret = isolate_lru_page(page); @@ -1029,19 +1046,23 @@ static int mem_cgroup_move_parent(struct page_cgroup *pc, ret = mem_cgroup_move_account(pc, child, parent); - /* drop extra refcnt by try_charge() (move_account increment one) */ - css_put(&parent->css); putback_lru_page(page); if (!ret) { put_page(page); + /* drop extra refcnt by try_charge() */ + css_put(&parent->css); return 0; } - /* uncharge if move fails */ + cancel: + put_page(page); +uncharge: + /* drop extra refcnt by try_charge() */ + css_put(&parent->css); + /* uncharge if move fails */ res_counter_uncharge(&parent->res, PAGE_SIZE); if (do_swap_account) res_counter_uncharge(&parent->memsw, PAGE_SIZE); - put_page(page); return ret; } @@ -1971,6 +1992,7 @@ static int mem_cgroup_swappiness_write(struct cgroup *cgrp, struct cftype *cft, { struct mem_cgroup *memcg = mem_cgroup_from_cont(cgrp); struct mem_cgroup *parent; + if (val > 100) return -EINVAL; @@ -1978,15 +2000,22 @@ static int mem_cgroup_swappiness_write(struct cgroup *cgrp, struct cftype *cft, return -EINVAL; parent = mem_cgroup_from_cont(cgrp->parent); + + cgroup_lock(); + /* If under hierarchy, only empty-root can set this value */ if ((parent->use_hierarchy) || - (memcg->use_hierarchy && !list_empty(&cgrp->children))) + (memcg->use_hierarchy && !list_empty(&cgrp->children))) { + cgroup_unlock(); return -EINVAL; + } spin_lock(&memcg->reclaim_param_lock); memcg->swappiness = val; spin_unlock(&memcg->reclaim_param_lock); + cgroup_unlock(); + return 0; } @@ -2181,7 +2210,7 @@ static void __init enable_swap_cgroup(void) } #endif -static struct cgroup_subsys_state * +static struct cgroup_subsys_state * __ref mem_cgroup_create(struct cgroup_subsys *ss, struct cgroup *cont) { struct mem_cgroup *mem, *parent; @@ -2232,7 +2261,14 @@ static void mem_cgroup_pre_destroy(struct cgroup_subsys *ss, static void mem_cgroup_destroy(struct cgroup_subsys *ss, struct cgroup *cont) { - mem_cgroup_put(mem_cgroup_from_cont(cont)); + struct mem_cgroup *mem = mem_cgroup_from_cont(cont); + struct mem_cgroup *last_scanned_child = mem->last_scanned_child; + + if (last_scanned_child) { + VM_BUG_ON(!mem_cgroup_is_obsolete(last_scanned_child)); + mem_cgroup_put(last_scanned_child); + } + mem_cgroup_put(mem); } static int mem_cgroup_populate(struct cgroup_subsys *ss, diff --git a/mm/vmalloc.c b/mm/vmalloc.c index c5db9a7264d..75f49d312e8 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -14,7 +14,6 @@ #include <linux/highmem.h> #include <linux/slab.h> #include <linux/spinlock.h> -#include <linux/mutex.h> #include <linux/interrupt.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> @@ -24,6 +23,7 @@ #include <linux/rbtree.h> #include <linux/radix-tree.h> #include <linux/rcupdate.h> +#include <linux/bootmem.h> #include <asm/atomic.h> #include <asm/uaccess.h> @@ -495,7 +495,7 @@ static atomic_t vmap_lazy_nr = ATOMIC_INIT(0); static void __purge_vmap_area_lazy(unsigned long *start, unsigned long *end, int sync, int force_flush) { - static DEFINE_MUTEX(purge_lock); + static DEFINE_SPINLOCK(purge_lock); LIST_HEAD(valist); struct vmap_area *va; int nr = 0; @@ -506,10 +506,10 @@ static void __purge_vmap_area_lazy(unsigned long *start, unsigned long *end, * the case that isn't actually used at the moment anyway. */ if (!sync && !force_flush) { - if (!mutex_trylock(&purge_lock)) + if (!spin_trylock(&purge_lock)) return; } else - mutex_lock(&purge_lock); + spin_lock(&purge_lock); rcu_read_lock(); list_for_each_entry_rcu(va, &vmap_area_list, list) { @@ -541,7 +541,7 @@ static void __purge_vmap_area_lazy(unsigned long *start, unsigned long *end, __free_vmap_area(va); spin_unlock(&vmap_area_lock); } - mutex_unlock(&purge_lock); + spin_unlock(&purge_lock); } /* @@ -984,6 +984,8 @@ EXPORT_SYMBOL(vm_map_ram); void __init vmalloc_init(void) { + struct vmap_area *va; + struct vm_struct *tmp; int i; for_each_possible_cpu(i) { @@ -996,6 +998,14 @@ void __init vmalloc_init(void) vbq->nr_dirty = 0; } + /* Import existing vmlist entries. */ + for (tmp = vmlist; tmp; tmp = tmp->next) { + va = alloc_bootmem(sizeof(struct vmap_area)); + va->flags = tmp->flags | VM_VM_AREA; + va->va_start = (unsigned long)tmp->addr; + va->va_end = va->va_start + tmp->size; + __insert_vmap_area(va); + } vmap_initialized = true; } diff --git a/net/9p/Kconfig b/net/9p/Kconfig index 0663f99e977..7ed75c7bd5d 100644 --- a/net/9p/Kconfig +++ b/net/9p/Kconfig @@ -23,7 +23,7 @@ config NET_9P_VIRTIO guest partitions and a host partition. config NET_9P_RDMA - depends on INET && INFINIBAND && EXPERIMENTAL + depends on INET && INFINIBAND && INFINIBAND_ADDR_TRANS && EXPERIMENTAL tristate "9P RDMA Transport (Experimental)" help This builds support for an RDMA transport. diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 7bed4ed2c51..45eb0ae98eb 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -10,7 +10,7 @@ use strict; my $P = $0; $P =~ s@.*/@@g; -my $V = '0.26'; +my $V = '0.27'; use Getopt::Long qw(:config no_auto_abbrev); @@ -411,13 +411,15 @@ sub ctx_statement_block { my $type = ''; my $level = 0; - my @stack = ([$type, $level]); + my @stack = (); my $p; my $c; my $len = 0; my $remainder; while (1) { + @stack = (['', 0]) if ($#stack == -1); + #warn "CSB: blk<$blk> remain<$remain>\n"; # If we are about to drop off the end, pull in more # context. @@ -1663,7 +1665,7 @@ sub process { # Should not end with a space. $to =~ s/\s+$//; # '*'s should not have spaces between. - while ($to =~ s/(.)\s\*/$1\*/) { + while ($to =~ s/\*\s+\*/\*\*/) { } #print "from<$from> to<$to>\n"; @@ -1678,7 +1680,7 @@ sub process { # Should not end with a space. $to =~ s/\s+$//; # '*'s should not have spaces between. - while ($to =~ s/(.)\s\*/$1\*/) { + while ($to =~ s/\*\s+\*/\*\*/) { } # Modifiers should have spaces. $to =~ s/(\b$Modifier$)/$1 /; @@ -2014,7 +2016,11 @@ sub process { # Flatten any parentheses $value =~ s/\)\(/\) \(/g; - while ($value !~ /(?:$Ident|-?$Constant)\s*$Compare\s*(?:$Ident|-?$Constant)/ && $value =~ s/\([^\(\)]*\)/1/) { + while ($value =~ s/\[[^\{\}]*\]/1/ || + $value !~ /(?:$Ident|-?$Constant)\s* + $Compare\s* + (?:$Ident|-?$Constant)/x && + $value =~ s/\([^\(\)]*\)/1/) { } if ($value =~ /^(?:$Ident|-?$Constant)$/) { @@ -2102,6 +2108,11 @@ sub process { ERROR("trailing statements should be on next line\n" . $herecurr); } } +# if should not continue a brace + if ($line =~ /}\s*if\b/) { + ERROR("trailing statements should be on next line\n" . + $herecurr); + } # case and default should not have general statements after them if ($line =~ /^.\s*(?:case\s*.*|default\s*):/g && $line !~ /\G(?: @@ -2516,9 +2527,10 @@ sub process { WARN("please use device_initcall() instead of __initcall()\n" . $herecurr); } # check for struct file_operations, ensure they are const. - if ($line =~ /\bstruct\s+file_operations\b/ && - $line !~ /\bconst\b/) { - WARN("struct file_operations should normally be const\n" . $herecurr); + if ($line !~ /\bconst\b/ && + $line =~ /\bstruct\s+(file_operations|seq_operations)\b/) { + WARN("struct $1 should normally be const\n" . + $herecurr); } # use of NR_CPUS is usually wrong diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 3c596da2b9b..b7bba7dc7cf 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2724,6 +2724,67 @@ int snd_hda_check_board_config(struct hda_codec *codec, EXPORT_SYMBOL_HDA(snd_hda_check_board_config); /** + * snd_hda_check_board_codec_sid_config - compare the current codec + subsystem ID with the + config table + + This is important for Gateway notebooks with SB450 HDA Audio + where the vendor ID of the PCI device is: + ATI Technologies Inc SB450 HDA Audio [1002:437b] + and the vendor/subvendor are found only at the codec. + + * @codec: the HDA codec + * @num_configs: number of config enums + * @models: array of model name strings + * @tbl: configuration table, terminated by null entries + * + * Compares the modelname or PCI subsystem id of the current codec with the + * given configuration table. If a matching entry is found, returns its + * config value (supposed to be 0 or positive). + * + * If no entries are matching, the function returns a negative value. + */ +int snd_hda_check_board_codec_sid_config(struct hda_codec *codec, + int num_configs, const char **models, + const struct snd_pci_quirk *tbl) +{ + const struct snd_pci_quirk *q; + + /* Search for codec ID */ + for (q = tbl; q->subvendor; q++) { + unsigned long vendorid = (q->subdevice) | (q->subvendor << 16); + + if (vendorid == codec->subsystem_id) + break; + } + + if (!q->subvendor) + return -1; + + tbl = q; + + if (tbl->value >= 0 && tbl->value < num_configs) { +#ifdef CONFIG_SND_DEBUG_DETECT + char tmp[10]; + const char *model = NULL; + if (models) + model = models[tbl->value]; + if (!model) { + sprintf(tmp, "#%d", tbl->value); + model = tmp; + } + snd_printdd(KERN_INFO "hda_codec: model '%s' is selected " + "for config %x:%x (%s)\n", + model, tbl->subvendor, tbl->subdevice, + (tbl->name ? tbl->name : "Unknown device")); +#endif + return tbl->value; + } + return -1; +} +EXPORT_SYMBOL_HDA(snd_hda_check_board_codec_sid_config); + +/** * snd_hda_add_new_ctls - create controls from the array * @codec: the HDA codec * @knew: the array of struct snd_kcontrol_new @@ -2815,7 +2876,7 @@ void snd_hda_power_down(struct hda_codec *codec) return; if (power_save(codec)) { codec->power_transition = 1; /* avoid reentrance */ - schedule_delayed_work(&codec->power_work, + queue_delayed_work(codec->bus->workq, &codec->power_work, msecs_to_jiffies(power_save(codec) * 1000)); } } diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 6f2fe0f9fdd..1dd8716c387 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -296,6 +296,9 @@ void snd_print_pcm_bits(int pcm, char *buf, int buflen); int snd_hda_check_board_config(struct hda_codec *codec, int num_configs, const char **modelnames, const struct snd_pci_quirk *pci_list); +int snd_hda_check_board_codec_sid_config(struct hda_codec *codec, + int num_configs, const char **models, + const struct snd_pci_quirk *tbl); int snd_hda_add_new_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew); diff --git a/sound/pci/hda/patch_nvhdmi.c b/sound/pci/hda/patch_nvhdmi.c index 96952a37d88..d57d8132a06 100644 --- a/sound/pci/hda/patch_nvhdmi.c +++ b/sound/pci/hda/patch_nvhdmi.c @@ -160,6 +160,7 @@ static int patch_nvhdmi(struct hda_codec *codec) */ static struct hda_codec_preset snd_hda_preset_nvhdmi[] = { { .id = 0x10de0002, .name = "MCP78 HDMI", .patch = patch_nvhdmi }, + { .id = 0x10de0006, .name = "MCP78 HDMI", .patch = patch_nvhdmi }, { .id = 0x10de0007, .name = "MCP7A HDMI", .patch = patch_nvhdmi }, { .id = 0x10de0067, .name = "MCP67 HDMI", .patch = patch_nvhdmi }, { .id = 0x10de8001, .name = "MCP73 HDMI", .patch = patch_nvhdmi }, @@ -167,6 +168,7 @@ static struct hda_codec_preset snd_hda_preset_nvhdmi[] = { }; MODULE_ALIAS("snd-hda-codec-id:10de0002"); +MODULE_ALIAS("snd-hda-codec-id:10de0006"); MODULE_ALIAS("snd-hda-codec-id:10de0007"); MODULE_ALIAS("snd-hda-codec-id:10de0067"); MODULE_ALIAS("snd-hda-codec-id:10de8001"); diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index ea4c88fe05c..82dd0843197 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -10573,6 +10573,7 @@ static struct snd_pci_quirk alc262_cfg_tbl[] = { SND_PCI_QUIRK(0x10cf, 0x142d, "Fujitsu Lifebook E8410", ALC262_FUJITSU), SND_PCI_QUIRK(0x144d, 0xc032, "Samsung Q1 Ultra", ALC262_ULTRA), SND_PCI_QUIRK(0x144d, 0xc039, "Samsung Q1U EL", ALC262_ULTRA), + SND_PCI_QUIRK(0x144d, 0xc510, "Samsung Q45", ALC262_HIPPO), SND_PCI_QUIRK(0x17aa, 0x384e, "Lenovo 3000 y410", ALC262_LENOVO_3000), SND_PCI_QUIRK(0x17ff, 0x0560, "Benq ED8", ALC262_BENQ_ED8), SND_PCI_QUIRK(0x17ff, 0x058d, "Benq T31-16", ALC262_BENQ_T31), diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 35b83dc6e19..c39deebb588 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -55,7 +55,8 @@ enum { STAC_9200_DELL_M25, STAC_9200_DELL_M26, STAC_9200_DELL_M27, - STAC_9200_GATEWAY, + STAC_9200_M4, + STAC_9200_M4_2, STAC_9200_PANASONIC, STAC_9200_MODELS }; @@ -89,14 +90,19 @@ enum { STAC_DELL_M4_2, STAC_DELL_M4_3, STAC_HP_M4, + STAC_HP_DV5, STAC_92HD71BXX_MODELS }; enum { STAC_925x_REF, + STAC_M1, + STAC_M1_2, + STAC_M2, STAC_M2_2, - STAC_MA6, - STAC_PA6, + STAC_M3, + STAC_M5, + STAC_M6, STAC_925x_MODELS }; @@ -331,6 +337,10 @@ static unsigned int stac92hd83xxx_pwr_mapping[4] = { 0x03, 0x0c, 0x10, 0x40, }; +static hda_nid_t stac92hd83xxx_amp_nids[1] = { + 0xc, +}; + static hda_nid_t stac92hd71bxx_pwr_nids[3] = { 0x0a, 0x0d, 0x0f }; @@ -875,6 +885,8 @@ static struct hda_verb stac92hd71bxx_analog_core_init[] = { static struct hda_verb stac925x_core_init[] = { /* set dac0mux for dac converter */ { 0x06, AC_VERB_SET_CONNECT_SEL, 0x00}, + /* unmute and set max the selector */ + { 0x0e, AC_VERB_SET_AMP_GAIN_MUTE, 0xb01f }, {} }; @@ -1334,7 +1346,16 @@ static unsigned int ref9200_pin_configs[8] = { 0x02a19020, 0x01a19021, 0x90100140, 0x01813122, }; -/* +static unsigned int gateway9200_m4_pin_configs[8] = { + 0x400000fe, 0x404500f4, 0x400100f0, 0x90110010, + 0x400100f1, 0x02a1902e, 0x500000f2, 0x500000f3, +}; +static unsigned int gateway9200_m4_2_pin_configs[8] = { + 0x400000fe, 0x404500f4, 0x400100f0, 0x90110010, + 0x400100f1, 0x02a1902e, 0x500000f2, 0x500000f3, +}; + +/* STAC 9200 pin configs for 102801A8 102801DE @@ -1464,6 +1485,8 @@ static unsigned int *stac9200_brd_tbl[STAC_9200_MODELS] = { [STAC_9200_DELL_M25] = dell9200_m25_pin_configs, [STAC_9200_DELL_M26] = dell9200_m26_pin_configs, [STAC_9200_DELL_M27] = dell9200_m27_pin_configs, + [STAC_9200_M4] = gateway9200_m4_pin_configs, + [STAC_9200_M4_2] = gateway9200_m4_2_pin_configs, [STAC_9200_PANASONIC] = ref9200_pin_configs, }; @@ -1480,7 +1503,8 @@ static const char *stac9200_models[STAC_9200_MODELS] = { [STAC_9200_DELL_M25] = "dell-m25", [STAC_9200_DELL_M26] = "dell-m26", [STAC_9200_DELL_M27] = "dell-m27", - [STAC_9200_GATEWAY] = "gateway", + [STAC_9200_M4] = "gateway-m4", + [STAC_9200_M4_2] = "gateway-m4-2", [STAC_9200_PANASONIC] = "panasonic", }; @@ -1550,11 +1574,9 @@ static struct snd_pci_quirk stac9200_cfg_tbl[] = { /* Panasonic */ SND_PCI_QUIRK(0x10f7, 0x8338, "Panasonic CF-74", STAC_9200_PANASONIC), /* Gateway machines needs EAPD to be set on resume */ - SND_PCI_QUIRK(0x107b, 0x0205, "Gateway S-7110M", STAC_9200_GATEWAY), - SND_PCI_QUIRK(0x107b, 0x0317, "Gateway MT3423, MX341*", - STAC_9200_GATEWAY), - SND_PCI_QUIRK(0x107b, 0x0318, "Gateway ML3019, MT3707", - STAC_9200_GATEWAY), + SND_PCI_QUIRK(0x107b, 0x0205, "Gateway S-7110M", STAC_9200_M4), + SND_PCI_QUIRK(0x107b, 0x0317, "Gateway MT3423, MX341*", STAC_9200_M4_2), + SND_PCI_QUIRK(0x107b, 0x0318, "Gateway ML3019, MT3707", STAC_9200_M4_2), /* OQO Mobile */ SND_PCI_QUIRK(0x1106, 0x3288, "OQO Model 2", STAC_9200_OQO), {} /* terminator */ @@ -1565,44 +1587,85 @@ static unsigned int ref925x_pin_configs[8] = { 0x90a70320, 0x02214210, 0x01019020, 0x9033032e, }; -static unsigned int stac925x_MA6_pin_configs[8] = { - 0x40c003f0, 0x424503f2, 0x01813022, 0x02a19021, - 0x90a70320, 0x90100211, 0x400003f1, 0x9033032e, +static unsigned int stac925xM1_pin_configs[8] = { + 0x40c003f4, 0x424503f2, 0x400000f3, 0x02a19020, + 0x40a000f0, 0x90100210, 0x400003f1, 0x9033032e, }; -static unsigned int stac925x_PA6_pin_configs[8] = { - 0x40c003f0, 0x424503f2, 0x01813022, 0x02a19021, - 0x50a103f0, 0x90100211, 0x400003f1, 0x9033032e, +static unsigned int stac925xM1_2_pin_configs[8] = { + 0x40c003f4, 0x424503f2, 0x400000f3, 0x02a19020, + 0x40a000f0, 0x90100210, 0x400003f1, 0x9033032e, +}; + +static unsigned int stac925xM2_pin_configs[8] = { + 0x40c003f4, 0x424503f2, 0x400000f3, 0x02a19020, + 0x40a000f0, 0x90100210, 0x400003f1, 0x9033032e, }; static unsigned int stac925xM2_2_pin_configs[8] = { - 0x40c003f3, 0x424503f2, 0x04180011, 0x02a19020, - 0x50a103f0, 0x90100212, 0x400003f1, 0x9033032e, + 0x40c003f4, 0x424503f2, 0x400000f3, 0x02a19020, + 0x40a000f0, 0x90100210, 0x400003f1, 0x9033032e, +}; + +static unsigned int stac925xM3_pin_configs[8] = { + 0x40c003f4, 0x424503f2, 0x400000f3, 0x02a19020, + 0x40a000f0, 0x90100210, 0x400003f1, 0x503303f3, +}; + +static unsigned int stac925xM5_pin_configs[8] = { + 0x40c003f4, 0x424503f2, 0x400000f3, 0x02a19020, + 0x40a000f0, 0x90100210, 0x400003f1, 0x9033032e, +}; + +static unsigned int stac925xM6_pin_configs[8] = { + 0x40c003f4, 0x424503f2, 0x400000f3, 0x02a19020, + 0x40a000f0, 0x90100210, 0x400003f1, 0x90330320, }; static unsigned int *stac925x_brd_tbl[STAC_925x_MODELS] = { [STAC_REF] = ref925x_pin_configs, + [STAC_M1] = stac925xM1_pin_configs, + [STAC_M1_2] = stac925xM1_2_pin_configs, + [STAC_M2] = stac925xM2_pin_configs, [STAC_M2_2] = stac925xM2_2_pin_configs, - [STAC_MA6] = stac925x_MA6_pin_configs, - [STAC_PA6] = stac925x_PA6_pin_configs, + [STAC_M3] = stac925xM3_pin_configs, + [STAC_M5] = stac925xM5_pin_configs, + [STAC_M6] = stac925xM6_pin_configs, }; static const char *stac925x_models[STAC_925x_MODELS] = { [STAC_REF] = "ref", + [STAC_M1] = "m1", + [STAC_M1_2] = "m1-2", + [STAC_M2] = "m2", [STAC_M2_2] = "m2-2", - [STAC_MA6] = "m6", - [STAC_PA6] = "pa6", + [STAC_M3] = "m3", + [STAC_M5] = "m5", + [STAC_M6] = "m6", +}; + +static struct snd_pci_quirk stac925x_codec_id_cfg_tbl[] = { + SND_PCI_QUIRK(0x107b, 0x0316, "Gateway M255", STAC_M2), + SND_PCI_QUIRK(0x107b, 0x0366, "Gateway MP6954", STAC_M5), + SND_PCI_QUIRK(0x107b, 0x0461, "Gateway NX560XL", STAC_M1), + SND_PCI_QUIRK(0x107b, 0x0681, "Gateway NX860", STAC_M2), + SND_PCI_QUIRK(0x107b, 0x0367, "Gateway MX6453", STAC_M1_2), + /* Not sure about the brand name for those */ + SND_PCI_QUIRK(0x107b, 0x0281, "Gateway mobile", STAC_M1), + SND_PCI_QUIRK(0x107b, 0x0507, "Gateway mobile", STAC_M3), + SND_PCI_QUIRK(0x107b, 0x0281, "Gateway mobile", STAC_M6), + SND_PCI_QUIRK(0x107b, 0x0685, "Gateway mobile", STAC_M2_2), + {} /* terminator */ }; static struct snd_pci_quirk stac925x_cfg_tbl[] = { /* SigmaTel reference board */ SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2668, "DFI LanParty", STAC_REF), SND_PCI_QUIRK(0x8384, 0x7632, "Stac9202 Reference Board", STAC_REF), - SND_PCI_QUIRK(0x107b, 0x0316, "Gateway M255", STAC_REF), - SND_PCI_QUIRK(0x107b, 0x0366, "Gateway MP6954", STAC_REF), - SND_PCI_QUIRK(0x107b, 0x0461, "Gateway NX560XL", STAC_MA6), - SND_PCI_QUIRK(0x107b, 0x0681, "Gateway NX860", STAC_PA6), - SND_PCI_QUIRK(0x1002, 0x437b, "Gateway MX6453", STAC_M2_2), + + /* Default table for unknown ID */ + SND_PCI_QUIRK(0x1002, 0x437b, "Gateway mobile", STAC_M2_2), + {} /* terminator */ }; @@ -1682,7 +1745,7 @@ static const char *stac92hd83xxx_models[STAC_92HD83XXX_MODELS] = { static struct snd_pci_quirk stac92hd83xxx_cfg_tbl[] = { /* SigmaTel reference board */ SND_PCI_QUIRK(PCI_VENDOR_ID_INTEL, 0x2668, - "DFI LanParty", STAC_92HD71BXX_REF), + "DFI LanParty", STAC_92HD83XXX_REF), {} /* terminator */ }; @@ -1716,6 +1779,7 @@ static unsigned int *stac92hd71bxx_brd_tbl[STAC_92HD71BXX_MODELS] = { [STAC_DELL_M4_2] = dell_m4_2_pin_configs, [STAC_DELL_M4_3] = dell_m4_3_pin_configs, [STAC_HP_M4] = NULL, + [STAC_HP_DV5] = NULL, }; static const char *stac92hd71bxx_models[STAC_92HD71BXX_MODELS] = { @@ -1724,6 +1788,7 @@ static const char *stac92hd71bxx_models[STAC_92HD71BXX_MODELS] = { [STAC_DELL_M4_2] = "dell-m4-2", [STAC_DELL_M4_3] = "dell-m4-3", [STAC_HP_M4] = "hp-m4", + [STAC_HP_DV5] = "hp-dv5", }; static struct snd_pci_quirk stac92hd71bxx_cfg_tbl[] = { @@ -1736,6 +1801,8 @@ static struct snd_pci_quirk stac92hd71bxx_cfg_tbl[] = { "HP dv7", STAC_HP_M4), SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x30fc, "HP dv7", STAC_HP_M4), + SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x3603, + "HP dv5", STAC_HP_DV5), SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x361a, "unknown HP", STAC_HP_M4), SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0233, @@ -4163,8 +4230,19 @@ static void stac92xx_hp_detect(struct hda_codec *codec) continue; if (presence) stac92xx_set_pinctl(codec, cfg->hp_pins[i], val); +#if 0 /* FIXME */ +/* Resetting the pinctl like below may lead to (a sort of) regressions + * on some devices since they use the HP pin actually for line/speaker + * outs although the default pin config shows a different pin (that is + * wrong and useless). + * + * So, it's basically a problem of default pin configs, likely a BIOS issue. + * But, disabling the code below just works around it, and I'm too tired of + * bug reports with such devices... + */ else stac92xx_reset_pinctl(codec, cfg->hp_pins[i], val); +#endif /* FIXME */ } } @@ -4390,7 +4468,8 @@ static int patch_stac9200(struct hda_codec *codec) spec->num_adcs = 1; spec->num_pwrs = 0; - if (spec->board_config == STAC_9200_GATEWAY || + if (spec->board_config == STAC_9200_M4 || + spec->board_config == STAC_9200_M4_2 || spec->board_config == STAC_9200_OQO) spec->init = stac9200_eapd_init; else @@ -4408,6 +4487,12 @@ static int patch_stac9200(struct hda_codec *codec) return err; } + /* CF-74 has no headphone detection, and the driver should *NOT* + * do detection and HP/speaker toggle because the hardware does it. + */ + if (spec->board_config == STAC_9200_PANASONIC) + spec->hp_detect = 0; + codec->patch_ops = stac92xx_patch_ops; return 0; @@ -4425,12 +4510,22 @@ static int patch_stac925x(struct hda_codec *codec) codec->spec = spec; spec->num_pins = ARRAY_SIZE(stac925x_pin_nids); spec->pin_nids = stac925x_pin_nids; - spec->board_config = snd_hda_check_board_config(codec, STAC_925x_MODELS, + + /* Check first for codec ID */ + spec->board_config = snd_hda_check_board_codec_sid_config(codec, + STAC_925x_MODELS, + stac925x_models, + stac925x_codec_id_cfg_tbl); + + /* Now checks for PCI ID, if codec ID is not found */ + if (spec->board_config < 0) + spec->board_config = snd_hda_check_board_config(codec, + STAC_925x_MODELS, stac925x_models, stac925x_cfg_tbl); again: if (spec->board_config < 0) { - snd_printdd(KERN_INFO "hda_codec: Unknown model for STAC925x," + snd_printdd(KERN_INFO "hda_codec: Unknown model for STAC925x," "using BIOS defaults\n"); err = stac92xx_save_bios_config_regs(codec); } else @@ -4672,6 +4767,7 @@ static int patch_stac92hd83xxx(struct hda_codec *codec) spec->dmux_nids = stac92hd83xxx_dmux_nids; spec->adc_nids = stac92hd83xxx_adc_nids; spec->pwr_nids = stac92hd83xxx_pwr_nids; + spec->amp_nids = stac92hd83xxx_amp_nids; spec->pwr_mapping = stac92hd83xxx_pwr_mapping; spec->num_pwrs = ARRAY_SIZE(stac92hd83xxx_pwr_nids); spec->multiout.dac_nids = spec->dac_nids; @@ -4689,6 +4785,7 @@ static int patch_stac92hd83xxx(struct hda_codec *codec) spec->num_pins = ARRAY_SIZE(stac92hd83xxx_pin_nids); spec->num_dmuxes = ARRAY_SIZE(stac92hd83xxx_dmux_nids); spec->num_adcs = ARRAY_SIZE(stac92hd83xxx_adc_nids); + spec->num_amps = ARRAY_SIZE(stac92hd83xxx_amp_nids); spec->num_dmics = STAC92HD83XXX_NUM_DMICS; spec->dinput_mux = &stac92hd83xxx_dmux; spec->pin_nids = stac92hd83xxx_pin_nids; diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c index 98c6a8c65d8..e9e829e83d7 100644 --- a/sound/pci/oxygen/virtuoso.c +++ b/sound/pci/oxygen/virtuoso.c @@ -26,7 +26,7 @@ * SPI 0 -> 1st PCM1796 (front) * SPI 1 -> 2nd PCM1796 (surround) * SPI 2 -> 3rd PCM1796 (center/LFE) - * SPI 4 -> 4th PCM1796 (back) + * SPI 4 -> 4th PCM1796 (back) and EEPROM self-destruct (do not use!) * * GPIO 2 -> M0 of CS5381 * GPIO 3 -> M1 of CS5381 @@ -207,6 +207,12 @@ static void xonar_gpio_changed(struct oxygen *chip); static inline void pcm1796_write_spi(struct oxygen *chip, unsigned int codec, u8 reg, u8 value) { + /* + * We don't want to do writes on SPI 4 because the EEPROM, which shares + * the same pin, might get confused and broken. We'd better take care + * that the driver works with the default register values ... + */ +#if 0 /* maps ALSA channel pair number to SPI output */ static const u8 codec_map[4] = { 0, 1, 2, 4 @@ -217,6 +223,7 @@ static inline void pcm1796_write_spi(struct oxygen *chip, unsigned int codec, (codec_map[codec] << OXYGEN_SPI_CODEC_SHIFT) | OXYGEN_SPI_CEN_LATCH_CLOCK_HI, (reg << 8) | value); +#endif } static inline void pcm1796_write_i2c(struct oxygen *chip, unsigned int codec, @@ -750,6 +757,9 @@ static const DECLARE_TLV_DB_SCALE(cs4362a_db_scale, -12700, 100, 0); static int xonar_d2_control_filter(struct snd_kcontrol_new *template) { + if (!strncmp(template->name, "Master Playback ", 16)) + /* disable volume/mute because they would require SPI writes */ + return 1; if (!strncmp(template->name, "CD Capture ", 11)) /* CD in is actually connected to the video in pin */ template->private_value ^= AC97_CD ^ AC97_VIDEO; @@ -840,9 +850,8 @@ static const struct oxygen_model model_xonar_d2 = { .dac_volume_min = 0x0f, .dac_volume_max = 0xff, .misc_flags = OXYGEN_MISC_MIDI, - .function_flags = OXYGEN_FUNCTION_SPI | - OXYGEN_FUNCTION_ENABLE_SPI_4_5, - .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST, + .function_flags = OXYGEN_FUNCTION_SPI, + .dac_i2s_format = OXYGEN_I2S_FORMAT_I2S, .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST, }; diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 493a4e8aa27..a2f1da8b464 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -720,7 +720,8 @@ static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget, struct snd_soc_dapm_path *path; int found = 0; - if (widget->id != snd_soc_dapm_mux) + if (widget->id != snd_soc_dapm_mux && + widget->id != snd_soc_dapm_value_mux) return -ENODEV; if (!snd_soc_test_bits(widget->codec, e->reg, mask, val)) diff --git a/sound/usb/usbquirks.h b/sound/usb/usbquirks.h index 92115755d98..5d8ef09b9dc 100644 --- a/sound/usb/usbquirks.h +++ b/sound/usb/usbquirks.h @@ -128,6 +128,14 @@ .bInterfaceClass = USB_CLASS_AUDIO, .bInterfaceSubClass = USB_SUBCLASS_AUDIO_CONTROL }, +{ + USB_DEVICE(0x046d, 0x0990), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + .vendor_name = "Logitech, Inc.", + .product_name = "QuickCam Pro 9000", + .ifnum = QUIRK_NO_INTERFACE + } +}, /* * Yamaha devices |