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* Merge rsync://oss.sgi.com/git/xfs-2.6Linus Torvalds2005-06-21
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| * [XFS] Handle inode semaphores properly for dmapi queuesDean Roehrich2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 931572 SGI-Modid: xfs-linux-melb:xfs-kern:189560a Signed-off-by: Dean Roehrich <roehrich@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Remove some debugging code from quota syscalls.Nathan Scott2005-06-21
| | | | | | | | | | | | | | SGI-PV: 932952 SGI-Modid: xfs-linux-melb:xfs-kern:22929a Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Merge a few minor fixes to the quota warning code.Nathan Scott2005-06-21
| | | | | | | | | | | | | | SGI-PV: 938145 SGI-Modid: xfs-linux:xfs-kern:22901a Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Merge fixes into realtime quota code, since one/two reported, stillNathan Scott2005-06-21
| | | | | | | | | | | | | | | | | | not enabled though. SGI-PV: 938145 SGI-Modid: xfs-linux:xfs-kern:22900a Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Makes more sense to use the fsxattr interface instead of adding newNathan Scott2005-06-21
| | | | | | | | | | | | | | | | | | ioctls for project IDs. SGI-PV: 938145 SGI-Modid: xfs-linux:xfs-kern:22899a Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] (mostly) remove xfs_inval_cached_pages Since the last round ofChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | direct I/O locking changes it is just a wrapper around VOP_FLUSHINVAL_PAGES, so it's not nessecary anymore. Keep a simplified version for kernels < 2.4.22, as these don't have the changed direct I/O locking. SGI-PV: 938064 SGI-Modid: xfs-linux:xfs-kern:194420a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] simplify ASSERTChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 938063 SGI-Modid: xfs-linux:xfs-kern:194416a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] consolidate extent item freeingChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 938062 SGI-Modid: xfs-linux:xfs-kern:194415a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] quiesce the filesystem proper when freezingChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 936977 SGI-Modid: xfs-linux:xfs-kern:193840a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] add XFS_INOBT_IS_FREE_DISKChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 928382 SGI-Modid: xfs-linux:xfs-kern:193778a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Fix up some warning fallout from functions made staticEric Sandeen2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 936255 SGI-Modid: xfs-linux:xfs-kern:193691a Signed-off-by: Eric Sandeen <sandeen@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Add support for project quota inheritance, a merge of Glens changes.Nathan Scott2005-06-21
| | | | | | | | | | | | | | SGI-PV: 932952 SGI-Modid: xfs-linux:xfs-kern:22806a Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Add support for project quota, based on Dan Knappes earlier work.Nathan Scott2005-06-21
| | | | | | | | | | | | | | SGI-PV: 932952 SGI-Modid: xfs-linux:xfs-kern:22805a Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] remove xfs_incore_relseChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 936977 SGI-Modid: xfs-linux:xfs-kern:193409a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] simplify XFS_PURGE_INODEChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 936891 SGI-Modid: xfs-linux:xfs-kern:193408a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] rewrite xfs_iflush_allChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 936890 SGI-Modid: xfs-linux:xfs-kern:193349a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] mark various symbols static Patch from Adrian BunkChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 936255 SGI-Modid: xfs-linux:xfs-kern:192760a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Remove dead code. Patch from Adrian BunkChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 936255 SGI-Modid: xfs-linux:xfs-kern:192759a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Fix pagebuf slab initializationChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 908809 SGI-Modid: xfs-linux:xfs-kern:192756a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] fix some more compiler warnings in the vnode tracing codeChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 934679 SGI-Modid: xfs-linux:xfs-kern:192570a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] rename various pagebuf symbols to xfsbufChristoph Hellwig2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 908809 SGI-Modid: xfs-linux:xfs-kern:192348a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] send dmapi events from nopage for mmapped filesDean Roehrich2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 935317 SGI-Modid: xfs-linux:xfs-kern:192007a Signed-off-by: Dean Roehrich <roehrich@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Undo xfs-linux:xfs-kern:190622aDean Roehrich2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 933551 SGI-Modid: xfs-linux:xfs-kern:192006a Signed-off-by: Dean Roehrich <roehrich@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] upate copyrightsDean Roehrich2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 933765 SGI-Modid: xfs-linux:xfs-kern:190760a Signed-off-by: Dean Roehrich <roehrich@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] coordinate mmap calls with xfs_dm_punch_holeDean Roehrich2005-06-21
| | | | | | | | | | | | | | | | SGI-PV: 933551 SGI-Modid: xfs-linux:xfs-kern:190622a Signed-off-by: Dean Roehrich <roehrich@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
| * [XFS] Add a get/set interface for XFS project identifiers.Nathan Scott2005-06-20
| | | | | | | | | | | | | | SGI-PV: 932952 SGI-Modid: xfs-linux:xfs-kern:21938a Signed-off-by: Nathan Scott <nathans@sgi.com>
* | [PATCH] md: remove unneeded NULL checks before kfreeJesper Juhl2005-06-21
| | | | | | | | | | | | | | | | | | | | This patch removes some unneeded checks of pointers being NULL before calling kfree() on them. kfree() handles NULL pointers just fine, checking first is pointless. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: make sure md/bitmap doesn't try to write a page with active ↵NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | writeback Due to the use of write-behind, it is possible for md to write a page to the bitmap file that is still completing writeback. This is not allowed. With this patch, we detect those cases and either force a sync write, or back off and try later, as appropriate. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Two small fixes for md verion-1 superblocks.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | 1/ Must typecast int to (sector_t) before inverting or we might not invert enough bits. 2/ When "bitmap_offset" was added to mdp_superblock_1, we didn't increase the count of words-used (96 to 100). Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: allow md to update multiple superblocks in parallel.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | currently, md updates all superblocks (one on each device) in series. It waits for one write to complete before starting the next. This isn't a big problem as superblock updates don't happen that often. However it is neater to do it in parallel, and if the drives in the array have gone to "sleep" after a period of idleness, then waking them is parallel is faster (and someone else should be worrying about power drain). Futher, we will need parallel superblock updates for a future patch which keeps the intent-logging bitmap near the superblock. Also remove the silly code that retired superblock updates 100 times. This simply never made sense. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: allow md intent bitmap to be stored near the superblock.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | This provides an alternate to storing the bitmap in a separate file. The bitmap can be stored at a given offset from the superblock. Obviously the creator of the array must make sure this doesn't intersect with data.... After is good for version-0.90 superblocks. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: fix deadlock due to md thread processing delayed requests.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before completing a 'write' the md superblock might need to be updated. This is best done by the md_thread. The current code schedules this up and queues the write request for later handling by the md_thread. However some personalities (Raid5/raid6) will deadlock if the md_thread tries to submit requests to its own array. So this patch changes things so the processes submitting the request waits for the superblock to be written and then submits the request itself. This fixes a recently-created deadlock in raid5/raid6 Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: optimise reconstruction when re-adding a recently failed drive.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | When an array is degraded, bit in the intent-bitmap are never cleared. So if a recently failed drive is re-added, we only need to reconstruct the block that are still reflected in the bitmap. This patch adds support for this re-adding. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: initialise sync_blocks in raid1 resyncNeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | Otherwise it could have a random value and might BUG. This fixes a BUG during resync problem in raid1 introduced by the bitmap-based-intent-loggin patches. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: fix bug when raid1 attempts a partial reconstruct.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | The logic here is wrong. if fullsync is 0, it WILL BUG. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: raid1 support for bitmap intent loggingNeilBrown2005-06-21
| | | | | | | | | | | | Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: don't skip bitmap pages due to lack of bit that we just cleared.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When looking for pages that need cleaning we skip pages that don't have BITMAP_PAGE_CLEAN set. But if it is the 'current' page we will have cleared that bit ourselves, so skipping it is wrong. So: move the 'skip this page' inside 'if page != lastpage'. Also fold call of file_page_offset into the one place where the value (bit) is used. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: enable the bitmap write-back daemon and wait for it.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | Currently we don't wait for updates to the bitmap to be flushed to disk properly. The infrastructure all there, but it isn't being used.... A separate kernel thread (bitmap_writeback_daemon) is needed to wait for each page as we cannot get callbacks when a page write completes. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: check return value of write_page, rather than ignore itNeilBrown2005-06-21
| | | | | | | | | | | | Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: improve debug-printing of bitmap superblock.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | - report sync_size properly - need /2 to convert sectors to KB - move everything over 2 spaces to allow proper spelling of "events cleared". Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md printk fixakpm@osdl.org2005-06-21
| | | | | | | | | | | | | | A u64 is not an unsigned long long. On power4 it is `long', and printk warns. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: make sure md bitmap is cleared on a clean start.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As the array-wide clean bit (in the superblock) is set more agressively than the bits in the bitmap are cleared, it is possible to have an array which is clean despite there being bits set in the bitmap. These bits will currently never get cleared, as they can only be cleared by a resync pass, which never happens. No, when reading bits from disk, be aware of whether the whole array is known to be in sync, and act accordingly. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: minor code rearrangement in bitmap_init_from_diskNeilBrown2005-06-21
| | | | | | | | | | | | Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: print correct pid for newly created bitmap-writeback-daemon.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | The debugging message printed the wrong pid, which didn't help remove bugs.... Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: call bitmap_daemon_work regularlyNeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | bitmap_daemon_work clears bits in the bitmap for blocks that haven't been written to for a while. It needs to be called regularly to make sure the bitmap doesn't endup full of ones .... but it wasn't. So call it from the increasingly-inaptly-named md_check_recovery Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: a couple of tidyups relating to the bitmap file.NeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | 1/ When init from disk, it is a BUG if there is nowhere to init from, 2/ use seq_path to print path in /proc/mdstat Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: optimised resync using Bitmap based intent loggingNeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch, the intent to write to some block in the array can be logged to a bitmap file. Each bit represents some number of sectors and is set before any update happens, and only cleared when all writes relating to all sectors are complete. After an unclean shutdown, information in this bitmap can be used to optimise resync - only sectors which could be out-of-sync need to be updated. Also if a drive is removed and then added back into an array, the recovery can make use of the bitmap to optimise reconstruction. This is not implemented in this patch. Currently the bitmap is stored in a file which must (obviously) be stored on a separate device. The patch only provided infrastructure. It does not update any personalities to bitmap intent logging. Md arrays can still be used with no bitmap file. This patch has minimal impact on such arrays. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: improve the interface to sync_requestNeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1/ change the return value (which is number-of-sectors synced) from 'int' to 'sector_t'. The number of sectors is usually easily small enough to fit in an int, but if resync needs to abort, it may want to return the total number of remaining sectors, which could be large. Also errors cannot be returned as negative numbers now, so use 0 instead 2/ Add a 'skipped' return parameter to allow the array to report that it skipped the sectors. This allows md to take this into account in the speed calculations. Currently there is no important skipping, but the bitmap-based-resync that is coming will use this. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] md: improve locking on 'safemode' and move superblock writesNeilBrown2005-06-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When md marks the superblock dirty before a write, it calls generic_make_request (to write the superblock) from within generic_make_request (to write the first dirty block), which could cause problems later. With this patch, the superblock write is always done by the helper thread, and write request are delayed until that write completes. Also, the locking around marking the array dirty and writing the superblock is improved to avoid possible races. Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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