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2008-03-19lockd: refactor SM_MON my_id argument encoderChuck Lever
Clean up: introduce a new XDR encoder specifically for the my_id argument of SM_MON requests. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19lockd: refactor SM_MON mon_name argument encoderChuck Lever
Clean up: introduce a new XDR encoder specifically for the mon_name argument of SM_MON requests. This will be updated later to support IPv6 addresses in addition to IPv4 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19lockd: Ensure NSM strings aren't longer than protocol allowsChuck Lever
Introduce a special helper function to check the length of NSM strings before they are placed on the wire. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19lockd: bring a few function declarations up to dateChuck Lever
Clean-up: replace __inline__ and use up-to-date function declaration conventions. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NLM: NLM protocol version numbers are u32Chuck Lever
Clean up: RPC protocol version numbers are u32. Make sure we use an appropriate type for NLM version numbers when calling nlm_lookup_host(). Eliminates a harmless mixed sign comparison in nlm_host_lookup(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NLM: LOCKD fails to load if CONFIG_SYSCTL is not setChuck Lever
Bruce Fields says: "By the way, we've got another config-related nit here: http://bugzilla.linux-nfs.org/show_bug.cgi?id=156 You can build lockd without CONFIG_SYSCTL set, but then the module will fail to load." For now, disable the sysctl registration calls in lockd if CONFIG_SYSCTL is not enabled. This allows the kernel to build properly if PROC_FS or SYSCTL is not enabled, but an NFS client is desired. In the long run, we would like to be able to build the kernel with an NFS client but without lockd. This makes sense, for example, if you want an NFSv4-only NFS client, as NFSv4 doesn't use NLM at all. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19SUNRPC: Add a default setting for CONFIG_SUNRPC_BIND34Chuck Lever
Most distros will want support for rpcbind protocols 3 and 4 to default off until they have integrated user-space support for the new rpcbind daemon which supports IPv6 RPC services. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19SUNRPC: Update help Kconfig textChuck Lever
Clean up: refresh the help text for Kconfig items related to the sunrpc module. Remove obsolete URLs, and make the language consistent among the options. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: Always enable NFS direct I/OChuck Lever
Since O_DIRECT is a standard feature that is enabled in most distros, eliminate the CONFIG_NFS_DIRECTIO build option, and change the fs/nfs/Makefile to always build in the NFS direct I/O engine. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: Show most mount options via nfs_show_options()Chuck Lever
Display all mount options in /proc/mount which may be needed to reconstruct a previous mount. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: Save the values of the "mount*=" mount optionsChuck Lever
Save the value of the mountproto= mountport= mountvers= and mountaddr= options so that these values can be displayed later via nfs_show_options(). This preserves the intent of the original mount options, should the file system need to be remounted based on what's displayed in /proc/mounts. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: Save the value of the "port=" mount optionChuck Lever
During a remount based on the mount options displayed in /proc/mounts, we want to preserve the original behavior of the mount request. Let's save the original setting of the "port=" mount option in the mount's nfs_server structure. This allows us to simplify the default behavior of port setting for NFSv4 mounts: by default, NFSv2/3 mounts first try an RPC bind to determine the NFS server's port, unless the user specified the "port=" mount option; Users can force the client to skip the RPC bind by explicitly specifying "port=<value>". NFSv4, by contrast, assumes the NFS server port is 2049 and skips the RPC bind, unless the user specifies "port=". Users can force an RPC bind for NFSv4 by explicitly specifying "port=0". I added a couple of extra comments to clarify this behavior. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: Fix up data types of fields in nfs_parsed_mount_optionsChuck Lever
Clean up: make data types of fields in nfs_parsed_mount_options more consistent with other uses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: numeric mount parameters are unsignedChuck Lever
Clean up: use %u instead of %d when displaying NFS mount options. Nit: Fix reporting of "namlen=" option in nfs_show_mount_stats. The mount option is called "namlen" without the "e". Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: clean up short packet handling for NFSv4 readdirJeff Layton
Currently, the NFS readdir decoders have a workaround for buggy servers that send an empty readdir response with the EOF bit unset. If the server sends a malformed response in some cases, this workaround kicks in and just returns an empty response rather than returning a proper error to the caller. This patch does 3 things: 1) have malformed responses with no entries return error (-EIO) 2) preserve existing workaround for servers that send empty responses with the EOF marker unset. 3) Add some comments to clarify the logic in decode_readdir(). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: clean up short packet handling for NFSv3 readdirJeff Layton
Currently, the NFS readdir decoders have a workaround for buggy servers that send an empty readdir response with the EOF bit unset. If the server sends a malformed response in some cases, this workaround kicks in and just returns an empty response rather than returning a proper error to the caller. This patch does 3 things: 1) have malformed responses with no entries return error (-EIO) 2) preserve existing workaround for servers that send empty responses with the EOF marker unset. 3) Add some comments to clarify the logic in nfs3_xdr_readdirres(). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19NFS: clean up short packet handling for NFSv2 readdirJeff Layton
Currently, the NFS readdir decoders have a workaround for buggy servers that send an empty readdir response with the EOF bit unset. If the server sends a malformed response in some cases, this workaround kicks in and just returns an empty response rather than returning a proper error to the caller. This patch does 3 things: 1) have malformed responses with no entries return error (-EIO) 2) preserve existing workaround for servers that send empty responses with the EOF marker unset. 3) Add some comments to clarify the logic in nfs_xdr_readdirres(). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19nfs: remove duplicate initializations of nfs_read_data fieldFred Isaman
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19nfs: nfs_redirty_requestFred
Both flush functions have the same error handling routine. Pull it out as a function. Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-19Merge branch 'hotfixes' into develTrond Myklebust
2008-03-19nfs: don't ignore return value from nfs_pageio_add_requestFred Isaman
Ignoring the return value from nfs_pageio_add_request can cause deadlocks. In read path: call nfs_pageio_add_request from readpage_async_filler assume at this point that there are requests already in desc, that can't be merged with the current request. so nfs_pageio_doio is fired up to clear out desc. assume something goes wrong in setting up the io, so desc->pg_error is set. This causes nfs_pageio_add_request to return 0, *WITHOUT* adding the original request. BUT, since return code is ignored, readpage_async_filler assumes it has been added, and does nothing further, leaving page locked. do_generic_mapping_read will eventually call lock_page, resulting in deadlock In write path: page is marked dirty by generic_perform_write nfs_writepages is called call nfs_pageio_add_request from nfs_page_async_flush assume at this point that there are requests already in desc, that can't be merged with the current request. so nfs_pageio_doio is fired up to clear out desc. assume something goes wrong in setting up the io, so desc->pg_error is set. This causes nfs_page_async_flush to return 0, *WITHOUT* adding the original request, yet marking the request as locked (PG_BUSY) and in writeback, clearing dirty marks. The next time a write is done to the page, deadlock will result as nfs_write_end calls nfs_update_request Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-03-18Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: async_tx: avoid the async xor_zero_sum path when src_cnt > device->max_xor fsldma: Fix the DMA halt when using DMA_INTERRUPT async_tx transfer.
2008-03-18Revert "ACPI: EC: Handle IRQ storm on Acer laptops"Alexey Starikovskiy
This reverts commit 2c81ce4c9c37b910210f2640c28e98a0c398dc26. It caused several new troubles (eg suspend slowdown bisected down to this patch by Pavel Machek), so just revert it for now. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Cc: Pavel Machek <pavel@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel: sched: tune multi-core idle balancing sched: retune wake granularity sched: wakeup-buddy tasks are cache-hot sched: improve affine wakeups sched, net: socket wakeups are sync sched: clean up wakeup balancing, code flow sched: clean up wakeup balancing, rename variables sched: clean up wakeup balancing, move wake_affine()
2008-03-18IDE: Make taskfile interface more robust wrt unexpected end-of-commandLinus Torvalds
Now that we handle all the special commands using REQ_TYPE_ATA_TASKFILE rather than using the old REQ_TYPE_ATA_CMD model, we need to also emulate the lack of full taskfile data that comes with the old command model (ie when commands are generated with the HDIO_DRIVE_CMD ioctl rather than using the HDIO_DRIVE_TASK[FILE] ioctls). In particular, this means that we should handle command completion the more relaxed way that the old drive_cmd_intr() code did. It allows commands to finish early even if they don't use up all the data that we thought we had for them. This fixes a regression seen by Anders Eriksson where some SMART commands sent by smartd would cause a boot-time system hang on his machine because the IDE command handling code didn't realize that the command had completed. Tested-by: Anders Eriksson <aeriksson@fastmail.fm> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-18Merge branch 'slab-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm * 'slab-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm: slub page alloc fallback: Enable interrupts for GFP_WAIT.
2008-03-19sched: tune multi-core idle balancingIngo Molnar
WAKE_IDLE is too agressive on multi-core CPUs with the new wake-affine code, keep it on for SMT/HT balancing alone (where there's no cache affinity at all between logical CPUs). Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-19sched: retune wake granularityIngo Molnar
reduce wake-up granularity for better interactivity. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-19sched: wakeup-buddy tasks are cache-hotIngo Molnar
Wakeup-buddy tasks are cache-hot - this makes it a bit harder for the load-balancer to tear them apart. (but it's still possible, if the load is sufficiently assymetric) Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-19sched: improve affine wakeupsIngo Molnar
improve affine wakeups. Maintain the 'overlap' metric based on CFS's sum_exec_runtime - which means the amount of time a task executes after it wakes up some other task. Use the 'overlap' for the wakeup decisions: if the 'overlap' is short, it means there's strong workload coupling between this task and the woken up task. If the 'overlap' is large then the workload is decoupled and the scheduler will move them to separate CPUs more easily. ( Also slightly move the preempt_check within try_to_wake_up() - this has no effect on functionality but allows 'early wakeups' (for still-on-rq tasks) to be correctly accounted as well.) Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-19sched, net: socket wakeups are syncIngo Molnar
'sync' wakeups are a hint towards the scheduler that (certain) networking related wakeups likely create coupling between tasks. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-19sched: clean up wakeup balancing, code flowIngo Molnar
Clean up the code flow. No code changed: kernel/sched.o: text data bss dec hex filename 42521 2858 232 45611 b22b sched.o.before 42521 2858 232 45611 b22b sched.o.after md5: 09b31c44e9aff8666f72773dc433e2df sched.o.before.asm 09b31c44e9aff8666f72773dc433e2df sched.o.after.asm Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-19sched: clean up wakeup balancing, rename variablesIngo Molnar
rename 'cpu' to 'prev_cpu'. No code changed: kernel/sched.o: text data bss dec hex filename 42521 2858 232 45611 b22b sched.o.before 42521 2858 232 45611 b22b sched.o.after md5: 09b31c44e9aff8666f72773dc433e2df sched.o.before.asm 09b31c44e9aff8666f72773dc433e2df sched.o.after.asm Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-19sched: clean up wakeup balancing, move wake_affine()Ingo Molnar
split out the affine-wakeup bits. No code changed: kernel/sched.o: text data bss dec hex filename 42521 2858 232 45611 b22b sched.o.before 42521 2858 232 45611 b22b sched.o.after md5: 9d76738f1272aa82f0b7affd2f51df6b sched.o.before.asm 09b31c44e9aff8666f72773dc433e2df sched.o.after.asm (the md5's changed because stack slots changed and some registers get scheduled by gcc in a different order - but otherwise the before and after assembly is instruction for instruction equivalent.) Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-18async_tx: avoid the async xor_zero_sum path when src_cnt > device->max_xorDan Williams
If the channel cannot perform the operation in one call to ->device_prep_dma_zero_sum, then fallback to the xor+page_is_zero path. This only affects users with arrays larger than 16 devices on iop13xx or 32 devices on iop3xx. Cc: <stable@kernel.org> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-03-18fsldma: Fix the DMA halt when using DMA_INTERRUPT async_tx transfer.Zhang Wei
The DMA_INTERRUPT async_tx is a NULL transfer, thus the BCR(count register) is 0. When the transfer started with a byte count of zero, the DMA controller will triger a PE(programming error) event and halt, not a normal interrupt. I add special codes for PE event and DMA_INTERRUPT async_tx testing. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-03-18Merge branch 'audit.b49' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current * 'audit.b49' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: [PATCH] export sessionid alongside the loginuid in procfs
2008-03-18[PATCH] export sessionid alongside the loginuid in procfsEric Paris
Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-03-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: update key codes for Apple aluminium HID: fix comment in hid_input_report() HID: BADPAD entry for NATSU Playstation USB adapter HID: Use DIV_ROUND_UP HID: remove HID_QUIRK_APPLE_ISO_KEYBOARD for 4th generation macbook
2008-03-18Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: Set flag DOCK_UNDOCKING when triggered via sysfs Revert "ACPI: video: Ignore devices that aren't present in hardware" asus_acpi: remove misleading mask Revert "ACPI: video: Ignore ACPI video devices that aren't present in hardware" thermal: delete "default y" thermal: re-document thermal units Revert "thermal: fix generic thermal I/F for hwmon" ACPI: fix ATA_ACPI build ACPI: battery: Don't return -EFAIL on broken packages. ACPI: lockdep warning on boot, 2.6.25-rc5
2008-03-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ALPS - fix forward/back buttons reversed on Acer 5520-5290 Input: ALPS - put secondary device in proper place in sysfs Input: wacom - add support for Bamboo1, BambooFun, and Cintiq 12WX Input: document i8042.noloop Input: add keyboard notifier documentation Input: ads7846 - fix uninitialized var warning Input: i8042 - add SNI RM support Input: i8042 - add Lenovo 3000 N100 to nomux blacklist Input: i8042 - fix warning on non-x86 builds Input: cobalt_btns - assorted fixes
2008-03-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: make selinux_parse_opts_str() static
2008-03-18Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: Revert "unexport bio_{,un}map_user" relay: fix subbuf_splice_actor() adding too many pages The ps2esdi driver was marked as BROKEN more than two years ago due to being
2008-03-18Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/ati_pcigart: fix the PCIGART to use drm_pci to allocate GART table. drm/radeon: fixup RV550 chip family drm/via: attempt again to stabilise the AGP DMA command submission. drm: Fix race that can lockup the kernel
2008-03-18HID: update key codes for Apple aluminiumMichael Hanselmann
F5 and F6 have no second function printed on them. Thus their definitions have been removed from the table. KEY_CYCLEWINDOWS doesn't name the function of Mac OS X' Expose properly and because we couldn't find a better key code, we decided to use KEY_FN_F4 instead. We also changed KEY_BACK and KEY_FORWARD, which apply to browser functions, to KEY_PREVIOUSSONG and KEY_NEXTSONG, since the keys are intended to control a music player. Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-03-18HID: fix comment in hid_input_report()Jiri Kosina
The hid_input_report() in debug mode of course outputs the report itself, not the device report descriptor. Fix this error in comment. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-03-18HID: BADPAD entry for NATSU Playstation USB adapterAndrew Burton
Add quirk entry for BADPAD for the NATSU Playstation USB adapter. The adapter is supported under Linux, but with bad direction detection. Signed-off-by: Andrew Burton <adb@iinet.net.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-03-18HID: Use DIV_ROUND_UPJulia Lawall
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-03-18HID: remove HID_QUIRK_APPLE_ISO_KEYBOARD for 4th generation macbookTobias Mueller
4th generation MacBook (product id 0x022a) from Apple doesn't need HID_QUIRK_APPLE_ISO_KEYBOARD fix anymore. Signed-off-by: Tobias Mueller <Tobias_Mueller@twam.info> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-03-18Merge branches 'release' and 'dock' into releaseLen Brown
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