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2005-11-11drm: simplify sysfs code for drmDave Airlie
This simplifies the sysfs code for the drm and add a dri_library_name attribute which can be used by a userspace app to figure out which library to load. From: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-11-11drm: fixup drm_proc.c struct tableDave Airlie
Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-11-11drm: remove old backwards compatibilty stuffDave Airlie
Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-11-11drm: remove drm_flushDave Airlie
drm_flush is no longer needed remove. Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-11-11drm: cleanup via_ds.c includesDave Airlie
Remove the linux includes from via_ds.c Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-11-11drm: remove remnamt of old DRM code from tdfxDave Airlie
Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-11-10drm: remove drm_init.c it is no longer neededDave Airlie
Move drm_cpu_valid into drm_fops.c Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-11-10drm: rename driver hooks more understandablyDave Airlie
Rename the driver hooks in the DRM to something a little more understandable: preinit -> load postinit -> (removed) presetup -> firstopen postsetup -> (removed) open_helper -> open prerelease -> preclose free_filp_priv -> postclose pretakedown -> lastclose postcleanup -> unload release -> reclaim_buffers_locked version -> (removed) postinit and version were replaced with generic code in the Linux DRM (drivers now set their version numbers and description in the driver structure, like on BSD). postsetup wasn't used at all. Fixes the savage hooks for initializing and tearing down mappings at the right times. Testing involved at least starting X, running glxgears, killing glxgears, exiting X, and repeating. Tested on: FreeBSD (g200, g400, r200, r128) Linux (r200, savage4) From: Eric Anholt <anholt@freebsd.org> Signed-off-by: Dave Airlie <airlied@linux.ie>
2005-11-09Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
2005-11-10[PATCH] ide-floppy: software eject not working with LS-120 driveOndrej Zary
The problem (eject not working on ATAPI LS-120 drive) is caused by idefloppy_ioctl() function which *first* tries generic_ide_ioctl() and *only* if it fails with -EINVAL, proceeds with the specific ioctls. The generic eject command fails with something other than -EINVAL and the specific one is never executed. This patch fixes it by first going through the internal ioctls and only trying generic_ide_ioctl() if none of them matches. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2005-11-10[PATCH] siimage: enable interrupts on Adaptec SA-1210 cardJohn W. Linville
The siimage driver proports to support the Adaptec SA-1210 SATA controller. However, at least some of those cards boot-up with their interrupts disabled internally. The siimage driver currently ignores that fact, so that driver does not actually work with those cards. This patch enables those interrupts on cards that need it. [ This is implemented based on similar code in the libata-based sata_sil driver. ] Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2005-11-09[PATCH] ide: CS5535 driverJaya Kumar
Signed-off-by: Jaya Kumar <jayakumar.ide@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2005-11-09Fix AGP compile on non-x86 architecturesLinus Torvalds
AGP shouldn't use "global_flush_tlb()" to flush the AGP mappings, that i spurely an x86'ism. The proper AGP mapping flusher that should be used is "flush_agp_mappings()", which on x86 obviously happens to do a global TLB flush. This makes AGP (or at least the config _I_ happen to use) compile again on ppc64. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] ide: AMD Geode GX/LX supportJordan Crouse
From: "Jordan Crouse" <jordan.crouse@amd.com> The core IDE engine on the CS5536 is the same as the other AMD southbridges, so unlike the CS5535, we can simply add the appropriate PCI headers to the existing amd74xx code. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2005-11-09[PATCH] ide: ide-scsi fails to call idescsi_check_condition for things like ↵Willem Riede
"Medium not present" This patch started life as a response to fedora specific ide subsystem changes that made error handling of my ATAPI tape drive fail; the specifics are in https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=160868 The insertion of the statement rq->errors = err; near the end of ide_end_drive_cmd() in drivers/ide/ide-io.c means that rq->errors does not contain what it needs to in idescsi_end_request() in drivers/scsi/ide-scsi.c anymore. Recent mainline kernels now also have this change. The patch below makes ide-scsi whole. Signed-off-by: Willem Riede <wrlk@riede.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2005-11-09Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6Linus Torvalds
2005-11-09[PATCH] ide: possible cleanupsAdrian Bunk
This patch contains the following possible cleanups: - pci/cy82c693.c: make a needlessly global function static - remove the following unneeded EXPORT_SYMBOL's: - ide-taskfile.c: do_rw_taskfile - ide-iops.c: default_hwif_iops - ide-iops.c: default_hwif_transport - ide-iops.c: wait_for_ready Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2005-11-09[PATCH] ide: incorrect device link for ide-csHannes Reinecke
Devices driven by ide-cs will appear under /sys/devices instead of the appropriate PCMCIA device. To fix this I had to extend the hw_regs_t structure with a 'struct device' field, which allows us to set the parent link for the appropriate hwif. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Jens Axboe <axboe@suse.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2005-11-09[SPARC] sbus rtc: implement ->compat_ioctlChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09[SPARC]: Fix locking thinkos in display7seg and cpwatchdog drivers.David S. Miller
Noticed by Eric Brower. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgartLinus Torvalds
2005-11-09Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
2005-11-09Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
2005-11-09[PATCH] drivers/message/fusion/mptbase.c: make code staticAdrian Bunk
This patch makes the following previously global and EXPORT_SYMBOL'ed code static: - struct mpt_proc_root_dir - int mpt_stm_index Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] drivers/char/sysrq.c: make two functions staticAdrian Bunk
This patch makes two needlessly global functions static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: document sysfs usage of md, and make a couple of small refinementsNeilBrown
Document in Documentation/md.txt the files that now appear in sysfs, and make a couple of small refinements to exactly when 'level' and 'raid_disks' are empty, to make it match the documentation. Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: improve 'scan_mode' and rename it to 'sync_action'NeilBrown
The current sync_action for an array can be one of idle - nothing happening resync - reduncancy being recalcualted recover - missing device being recoverred to spare check - user initiated check of redundancy repair - like resync but user-initiated and ignores bitmap optimisation. Each of these strings can also be written to the 'sync_action' file to cause that action to happen (if appropriate). While 'sync' is not technically correct, as a recovery is *not* a 'sync', I think it is the most servicable word here. Also 'action' is a strong word than 'mode'. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: complete conversion of md to use kthreadsNeilBrown
There are a few loose ends following the conversion of md to use kthreads: - Some fields in mdk_thread_t that aren't needed (kthreads does it's own completion and manages it's own name). - thread->run is now never NULL, so no need to check - Some tests for signal_pending that aren't needed (As we don't use signals to stop threads any more) - Some flush_signals are not needed - Some waits are interruptible and don't need to be. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: ignore auto-readonly flag for arrays where it isn't meaningfulNeilBrown
The 'auto-readonly' flag (which suppresses resync and superblock updates until the first write) is not meaningful for personalities that don't support resync or superblock writes (raid0, linear, etc). So clear the setting early to avoid it confusing anything - e.g. appearing in /proc/mdstat Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: only try to print recovery/resync status for personalities that ↵NeilBrown
support recovery The introduction of 'resync=PENDING' (for read-only devices) caused that message to appear for non-syncable arrays like raid0 and linear. Simplest thing is to not try to print any resync info unless the personality clearly supports it. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: split off some md attributes in sysfs to a separate groupNeilBrown
Some, but not all, md array support data redundancy and hence support checking and restoring that redundancy (resync, rebuild). Some attributes apply specifically to functions involving this redundancy, and so should only appear for md arrays for which they are meaningful. i.e. they should not appear for raid0, linear, multpath, faulty. This patch separates these into a distinct group and creates the group only if the personality supports sync_request. Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: fix some locking and module refcounting issues with md's use of ↵NeilBrown
sysfs 1/ I really should be using the __ATTR macros for defining attributes, so that the .owner field get set properly, otherwise modules can be removed while sysfs files are open. This also involves some name changes of _show routines. 2/ Always lock the mddev (against reconfiguration) for all sysfs attribute access. This easily avoid certain races and is completely consistant with other interfaces (ioctl and /proc/mdstat both always lock against reconfiguration). 3/ raid5 attributes must check that the 'conf' structure actually exists (the array could have been stopped while an attribute file was open). 4/ A missing 'kfree' from when the raid5_conf_t was converted to have a kobject embedded, and then converted back again. Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: make sure a user-request sync of raid5 ignores intent bitmapNeilBrown
A sync of raid5 usually ignore blocks which the bitmap says are in-sync. But a user-request check or repair should not ignore these. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: make manual repair work for raid1NeilBrown
Raid1 currently optimises resync using the intent bitmap etc. This optimisation is not wanted when we explicitly request a repair through sysfs, so add appropriate checks. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: make sure /block link in /sys/.../md/ goes to correct devicesNeilBrown
If a block_device is a partition, then it's kobject is bdev->bd_part->kobj otherwise (if it is a full device), the kobject is bdev->bd_disk->kobj As md wants back-links to the correct object (whether partition or not), we need to respect this difference... (Thus current code shows a link to the whole device, whether we are using a partition or not, which is wrong). Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: allow md arrays to be started read-only (module parameter).NeilBrown
When an md array is started, the superblock will be written, and resync may commense. This is not good if you want to be completely read-only as, for example, when preparing to resume from a suspend-to-disk image. So introduce a module parameter "start_ro" which can be set to '1' at boot, at module load, or via /sys/module/md_mod/parameters/start_ro When this is set, new arrays get an 'auto-ro' mode, which disables all internal io (superblock updates, resync, recovery) and is automatically switched to 'rw' when the first write request arrives. The array can be set to true 'ro' mode using 'mdadm -r' before the first write request, or resync can be started without a write using 'mdadm -w'. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: Remove attempt to use dynamic names in sysfs for component ↵NeilBrown
devices on an MD array. With version-0.90 superblock, component devices on an md device to not have any stable name related to the array -(version-1 assigns a fixed index when a device is added to an array, and this remains despit any hot-swap). The intial code for making these devices appear in sysfs used dynamic names, which would change whenever a hot-spare was swapped for a failed or missing device. This turns out not to be practical in sysfs for a number of reasons. This patch changes then naming of component devices to be based on the result of 'bdevname'. This is stable and should be unique. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: support BIO_RW_BARRIER for md/raid1NeilBrown
We can only accept BARRIER requests if all slaves handle barriers, and that can, of course, change with time.... So we keep track of whether the whole array seems safe for barriers, and also whether each individual rdev handles barriers. We initially assumes barriers are OK. When writing the superblock we try a barrier, and if that fails, we flag things for no-barriers. This will usually clear the flags fairly quickly. If writing the superblock finds that BIO_RW_BARRIER is -ENOTSUPP, we need to resubmit, so introduce function "md_super_wait" which waits for requests to finish, and retries ENOTSUPP requests without the barrier flag. When writing the real raid1, write requests which were BIO_RW_BARRIER but which aresn't supported need to be retried. So raid1d is enhanced to do this, and when any bio write completes (i.e. no retry needed) we remove it from the r1bio, so that devices needing retry are easy to find. We should hardly ever get -ENOTSUPP errors when writing data to the raid. It should only happen if: 1/ the device used to support BARRIER, but now doesn't. Few devices change like this, though raid1 can! or 2/ the array has no persistent superblock, so there was no opportunity to pre-test for barriers when writing the superblock. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: make md on-disk bitmaps not host-endianNeilBrown
Current bitmaps use set_bit et.al and so are host-endian, which means not-portable. Oops. Define a new version number (4) for which bitmaps are little-endian. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: convert 'faulty' and 'in_sync' fields to bits in 'flags' fieldNeilBrown
This has the advantage of removing the confusion caused by 'rdev_t' and 'mddev_t' both having 'in_sync' fields. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: improvements to raid5 handling of read errorsNeilBrown
Two refinements to the 'attempt-overwrite-on-read-error' mechanism. 1/ If the array is read-only, don't attempt an over-write. 2/ If there are more than max_nr_stripes read errors on a device with no success, fail the drive. This will make sure a dead drive will be eventually kicked even when we aren't trying to rewrite (which would normally kick a dead drive more quickly. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: change raid5 sysfs attribute to not create a new directoryNeilBrown
There isn't really a need for raid5 attributes to be an a subdirectory, so this patch moves them from /sys/block/mdX/md/raid5/attribute to /sys/block/mdX/md/attribute This suggests that all md personalities should co-operate about namespace usage, but that shouldn't be a problem. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: minor MD fixesNeilBrown
1/ Use reduce stack usage, because 'gcc' apparently doesn't overlay different variables that are in separate scopes... 2/ Use test_bit instead of ( .. & 1<< ..) which in this case is buggy. Thanks to Andrew Morton Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: fix ref-counting problems with kobjects in mdNeilBrown
Thanks Greg. Cc: Greg KH <greg@kroah.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: provide proper rcu_dereference / rcu_assign_pointer annotations ↵Suzanne Wood
in md Acked-by: <paulmck@us.ibm.com> Signed-off-by: Suzanne Wood <suzannew@cs.pdx.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: teach raid5 the difference between 'check' and 'repair'.NeilBrown
With this, raid5 can be asked to check parity without repairing it. It also keeps a count of the number of incorrect parity blocks found (mismatches) and reports them through sysfs. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: allow a manual resync with mdNeilBrown
You can trigger a 'check' with echo check > /sys/block/mdX/md/scan_mode or a check-and-repair errors with echo repair > /sys/block/mdX/md/scan_mode and read the current state from the same file. Note: personalities need to know the different between 'check' and 'repair', but don't yet. Until they do, 'check' will be the same as 'repair' and will just do a normal resync pass. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: add kobject/sysfs support to raid5NeilBrown
/sys/block/mdX/md/raid5/ contains raid5-related attributes. Currently stripe_cache_size is number of entries in stripe cache, and is settable. stripe_cache_active is number of active entries, and in only readable. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: extend md sysfs support to component devices.NeilBrown
Each device in an md array how has a corresponding /sys/block/mdX/md/devNN/ directory which can contain attributes. Currently there is only 'state' which summarises the state, nd 'super' which has a copy of the superblock, and 'block' which is a symlink to the block device. Also, /sys/block/mdX/md/rdNN represents slot 'NN' in the array, and is a symlink to the relevant 'devNN'. Obviously spare devices do not have a slot in the array, and so don't have such a symlink. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09[PATCH] md: initial sysfs support for mdNeilBrown
Start using kobjects in mddevs, and provide a couple of simple attributes (level and disks). Attributes live in /sys/block/mdX/md/attr-name Signed-off-by: Neil Brown <neilb@suse.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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