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2010-03-07Revert "lib: build list_sort() only if needed"Linus Torvalds1-1/+0
This reverts commit a069c266ae5fdfbf5b4aecf2c672413aa33b2504. It turns ou that not only was it missing a case (XFS) that needed it, but perhaps more importantly, people sometimes want to enable new modules that they hadn't had enabled before, and if such a module uses list_sort(), it can't easily be inserted any more. So rather than add a "select LIST_SORT" to the XFS case, just leave it compiled in. It's not all _that_ big, after all, and the inconvenience isn't worth it. Requested-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Don Mullis <don.mullis@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06lib: build list_sort() only if neededDon Mullis1-0/+1
Build list_sort() only for configs that need it -- those that don't save ~581 bytes (i386). Signed-off-by: Don Mullis <don.mullis@gmail.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Dave Chinner <david@fromorbit.com> Cc: Artem Bityutskiy <dedekind@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-05pass writeback_control to ->write_inodeChristoph Hellwig3-6/+6
This gives the filesystem more information about the writeback that is happening. Trond requested this for the NFS unstable write handling, and other filesystems might benefit from this too by beeing able to distinguish between the different callers in more detail. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-01-13lib: Introduce generic list_sort functionDave Chinner1-95/+1
There are two copies of list_sort() in the tree already, one in the DRM code, another in ubifs. Now XFS needs this as well. Create a generic list_sort() function from the ubifs version and convert existing users to it so we don't end up with yet another copy in the tree. Signed-off-by: Dave Chinner <david@fromorbit.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Artem Bityutskiy <dedekind@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-17kill I_LOCKChristoph Hellwig1-1/+1
After I_SYNC was split from I_LOCK the leftover is always used together with I_NEW and thus superflous. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-12-15fs/ubifs: use %pUB to print UUIDsJoe Perches2-13/+3
Signed-off-by: Joe Perches <joe@perches.com> Cc: Artem Bityutskiy <dedekind@infradead.org> Cc: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-10Merge git://git.infradead.org/ubifs-2.6Linus Torvalds3-18/+17
* git://git.infradead.org/ubifs-2.6: UBIFS: fix return code in check_leaf UBI: flush wl before clearing update marker MAINTAINERS: change e-mail of Artem Bityutskiy UBIFS: remove manual O_SYNC handling UBIFS: support mounting of UBI volume character devices UBI: Add ubi_open_volume_path
2009-12-08UBIFS: fix return code in check_leafRoel Kluin1-1/+1
Return the PTR_ERR of the correct pointer. This fixes the debugging code. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-12-04tree-wide: fix assorted typos all over the placeAndré Goddard Rosa1-1/+1
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-11-24UBIFS: remove manual O_SYNC handlingChristoph Hellwig1-12/+1
generic_file_aio_write already calls into ->fsync to handle O_SYNC/O_DSYNC. Remove the duplicate call to ubifs_sync_wbufs_by_inode which is already covered by ubifs_fsync. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-11-24UBIFS: support mounting of UBI volume character devicesCorentin Chary1-5/+15
This patch makes it possible to mount UBI character device nodes, and use something like: $ mount -t ubifs /dev/ubi_volume_name /mnt/ubifs instead of the old restrictive 'nodev' semantics: $ mount -t ubifs ubi0_0 /mnt/ubifs [Comments and the patch were amended a bit by Artem] Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-09-27const: mark struct vm_struct_operationsAlexey Dobriyan1-1/+1
* mark struct vm_area_struct::vm_ops as const * mark vm_ops in AGP code But leave TTM code alone, something is fishy there with global vm_ops being used. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22const: mark remaining address_space_operations constAlexey Dobriyan1-1/+1
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-21Merge branch 'master' of ↵Artem Bityutskiy2-29/+5
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into linux-next Conflicts: fs/ubifs/super.c Merge the upstream tree in order to resolve a conflict with the per-bdi writeback changes from the linux-2.6-block tree.
2009-09-17UBIFS: fix debugging dumpArtem Bityutskiy1-1/+3
In 'dbg_check_space_info()' we want to dump current lprops statistics, but actually dump old statistics. Fix this. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-09-16writeback: separate starting of sync vs opportunistic writebackJens Axboe1-17/+3
bdi_start_writeback() is currently split into two paths, one for WB_SYNC_NONE and one for WB_SYNC_ALL. Add bdi_sync_writeback() for WB_SYNC_ALL writeback and let bdi_start_writeback() handle only WB_SYNC_NONE. Push down the writeback_control allocation and only accept the parameters that make sense for each function. This cleans up the API considerably. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-09-16fs: Assign bdi in super_blockJens Axboe1-0/+1
We do this automatically in get_sb_bdev() from the set_bdev_super() callback. Filesystems that have their own private backing_dev_info must assign that in ->fill_super(). Note that ->s_bdi assignment is required for proper writeback! Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-09-15UBIFS: improve lprops dumpArtem Bityutskiy3-18/+97
Improve 'dbg_dump_lprop()' and print dark and dead space there, decode flags, and journal heads. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-09-15UBIFS: various minor commentary fixesArtem Bityutskiy2-8/+8
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-09-15UBIFS: improve journal head debugging printsArtem Bityutskiy5-28/+50
Convert the journal head integer into the head name when printing debugging information. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-09-15UBIFS: define journal head numbers in ubifs-media.hArtem Bityutskiy2-6/+11
The journal head names and numbers are part of the UBIFS format, so they should be in the ubifs-media.h. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-09-11writeback: add name to backing_dev_infoJens Axboe1-0/+1
This enables us to track who does what and print info. Its main use is catching dirty inodes on the default_backing_dev_info, so we can fix that up. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-09-11writeback: get rid of generic_sync_sb_inodes() exportJens Axboe2-21/+3
This adds two new exported functions: - writeback_inodes_sb(), which only attempts to writeback dirty inodes on this super_block, for WB_SYNC_NONE writeout. - sync_inodes_sb(), which writes out all dirty inodes on this super_block and also waits for the IO to complete. Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-09-10UBIFS: amend commentariesArtem Bityutskiy1-32/+30
This patch amends and nicifies commentaries in file.c, as well as fixes some spelling problems. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-09-10UBIFS: check ubifs_scan error codes betterArtem Bityutskiy2-5/+14
The 'ubifs_scan()' function returns -EUCLEAN if something is corrupted and recovery is needed, otherwise it returns other error codes. However, in few places UBIFS does not check the error codes and runs recovery. This patch changes this behavior and makes UBIFS start recovery only on -EUCLEAN errors. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Reviewed-by: Adrian Hunter <Adrian.Hunter@nokia.com>
2009-09-10UBIFS: do not print scary error messages needlesslyArtem Bityutskiy11-25/+37
At the moment UBIFS print large and scary error messages and flash dumps in case of nearly any corruption, even if it is a recoverable corruption. For example, if the master node is corrupted, ubifs_scan() prints error dumps, then UBIFS recovers just fine and goes on. This patch makes UBIFS print scary error messages only in real cases, which are not recoverable. It adds 'quiet' argument to the 'ubifs_scan()' function, so the caller may ask 'ubi_scan()' not to print error messages if the caller is able to do recovery. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Reviewed-by: Adrian Hunter <Adrian.Hunter@nokia.com>
2009-09-10UBIFS: add inode size debugging checkArtem Bityutskiy4-3/+91
Add one more check to UBIFS - a check that makes sure that there are no data nodes beyond inode size. And few commantaries fixes along the line. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Reviewed-by: Adrian Hunter <Adrian.Hunter@nokia.com>
2009-08-22UBIFS: constify file and inode operationsArtem Bityutskiy1-2/+2
This patch adds 'const' qualifier to UBIFS xattr inode and file operations. Pointed-out-by: Julia Lawall <julia@diku.dk> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-24UBIFS: remove unneeded call from ubifs_sync_fsArtem Bityutskiy1-17/+7
Nowadays VFS always synchronizes all dirty inodes and pages before calling '->sync_fs()', so remove unneeded 'generic_sync_sb_inodes()' from 'ubifs_sync_fs()'. It used to be needed, but not any longer. Pointed-out-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-24UBIFS: kill BKLArtem Bityutskiy1-12/+1
The BKL was pushed down from VFS to the file-systems. It used to serialize mount/unmount/remount and prevented more than one instance of the same file-system from doing mount/umount/remount at the same time. But it is OK for UBIFS and it does not need any additional locking for these cases. Thus, kick the BKL out of UBIFS. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-24UBIFS: remove unused functionsSubrata Modak1-36/+0
Remove 'xent_key_init_hash()' and 'data_key_init_flash()' functions, as they are unot used anywhere. Signed-off-by: Subrata Modak <subrata@linux.vnet.ibm.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-24UBIFS: suppress compilation warningSubrata Modak1-1/+1
Fix "using uninitialized variable" compilation warning by using the "unititialized_var()" helper. Signed-off-by: Subrata Modak<subrata@linux.vnet.ibm.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-12headers: smp_lock.h reduxAlexey Dobriyan1-1/+0
* Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-09UBIFS: fix corruption dumpArtem Bityutskiy1-2/+26
In the 'ubifs_recover_leb()' function, when we find corrupted empty space, we dump 8K starting from the offset where the last node ends. This is OK if the corrupted empty space is somewhere near that offset. But if the corruption is far at the end of the LEB, we will dump all 0xFF bytes and complitely ignore the interesting data. This is observed on a PPC ("kilauea") with NOR flash. This patch changes the behavior and teaches UBIFS to print only interesting data. I.e., now we find where corruption starts and start dumping from that offset. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Reviewed-by: Adrian Hunter <Adrian.Hunter@nokia.com>
2009-07-09UBIFS: clean up free space checkingArtem Bityutskiy1-19/+3
recovery.c has 'is_empty()' helper and it is better to use this helper instead of re-implementing it in several places. This patch does this and removes some amount of unneeded code. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Reviewed-by: Adrian Hunter <Adrian.Hunter@nokia.com>
2009-07-09UBIFS: small amendments in the LEB scanning codeArtem Bityutskiy3-11/+17
This patch fixes few minor things I've spotted while going through code: 1. Better document return codes 2. If 'ubifs_scan_a_node()' returns some thing we do not expect, treat this as an error. 3. Try to do recovery only when 'ubifs_scan()' returns %-EUCLEAN, not on any error. 4. If empty space starts at a non-aligned address, print a message. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Reviewed-by: Adrian Hunter <Adrian.Hunter@nokia.com>
2009-07-09UBIFS: dump a little more in case of corruptionsArtem Bityutskiy1-3/+3
In case of corruptions, dump 8192 bytes instead of 4096. The largest node is 4096+ bytes, so it is better to see a node boundary, which is not always possible when only 4096 bytes are printed. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Reviewed-by: Adrian Hunter <Adrian.Hunter@nokia.com>
2009-07-05UBIFS: allow more than one volume to be mountedDaniel Mack1-1/+2
UBIFS uses a bdi device per volume, but does not care to hand out unique names to each of them. This causes an error when trying to mount more than one volumes. Append the UBI volume and device ID to avoid that. [Amended a bit by Artem Bityutskiy] Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Artem Bityutskiy <dedekind@infradead.org> Cc: Adrian Hunter <ext-adrian.hunter@nokia.com> Cc: linux-mtd@lists.infradead.org Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-05UBIFS: fix assertion warningArtem Bityutskiy1-0/+3
When debugging is enabled and an unclean file-system is mounter, the following assertion is triggered: UBIFS assert failed in ubifs_tnc_start_commit at 805 (pid 1081) Call Trace: [cfaffbd0] [c0006cf8] show_stack+0x44/0x16c (unreliable) [cfaffc10] [c011b738] ubifs_tnc_start_commit+0xbb8/0xd18 [cfaffc90] [c0112670] do_commit+0x150/0xa44 [cfaffd10] [c0125234] ubifs_rcvry_gc_commit+0xd8/0x544 [cfaffd60] [c0100e9c] ubifs_fill_super+0xe78/0x15f8 [cfaffdf0] [c0102118] ubifs_get_sb+0x20c/0x320 [cfaffe70] [c007f764] vfs_kern_mount+0x58/0xe0 [cfaffe90] [c007f83c] do_kern_mount+0x40/0xf8 [cfaffeb0] [c0095c24] do_mount+0x550/0x758 [cfafff10] [c0095ebc] sys_mount+0x90/0xe0 [cfafff40] [c000ed4c] ret_from_syscall+0x0/0x3c The reason is that we initialize 'c->min_leb_idx' early, and do not re-calculate it after journal replay. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-05UBIFS: minor spelling and grammar fixesAdrian Hunter2-3/+3
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
2009-07-05UBIFS: fix 64-bit divisions in debug printAdrian Hunter1-2/+3
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
2009-07-05UBIFS: few spelling fixesArtem Bityutskiy2-4/+4
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-05UBIFS: set write-buffer timout to 3-5 secondsArtem Bityutskiy2-15/+7
This patch cleans up write-buffer timeout initialization and sets it to 3-5 interval. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-05UBIFS: slightly optimize write-buffer timer usageArtem Bityutskiy3-12/+9
This patch adds the following minor optimization: 1. If write-buffer does not use the timer, indicate it with the wbuf->no_timer variable, instead of using the wbuf->softlimit variable. This is better because wbuf->softlimit is of ktime_t type, and the ktime_to_ns function contains 64-bit multiplication. 2. Do not call the 'hrtimer_cancel()' function for write-buffers which do not use timers. 3. Do not cancel the timer in 'ubifs_put_super()' because the synchronization function does this. This patch also removes a confusing comment. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-05UBIFS: improve debugging messagedArtem Bityutskiy1-10/+16
1. Make the I/O debugging message print the journal head number. 2. Add prints to timer functions. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-07-05UBIFS: fix integer overflow warningAdrian Hunter1-1/+3
Fix the following warning: fs/ubifs/io.c: In function 'ubifs_wbuf_init': fs/ubifs/io.c:860: warning: integer overflow in expression And limit maximum hrtimer delta to ULONG_MAX because the argument is 'unsigned long'. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-06-24helpers for acl caching + switch to thoseAl Viro1-1/+1
helpers: get_cached_acl(inode, type), set_cached_acl(inode, type, acl), forget_cached_acl(inode, type). ubifs/xattr.c needed includes reordered, the rest is a plain switchover. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2009-06-17Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6Linus Torvalds6-72/+102
* 'linux-next' of git://git.infradead.org/ubifs-2.6: UBIFS: start using hrtimers hrtimer: export ktime_add_safe UBIFS: do not forget to register BDI device UBIFS: allow sync option in rootflags UBIFS: remove dead code UBIFS: use anonymous device UBIFS: return proper error code if the compr is not present UBIFS: return error if link and unlink race UBIFS: reset no_space flag after inode deletion
2009-06-16ubifs: register backing_dev_infoJens Axboe1-0/+3
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-06-12Push BKL down into ->remount_fs()Alessio Igor Bogani1-1/+8
[xfs, btrfs, capifs, shmem don't need BKL, exempt] Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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