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* udf: Avoid infinite loop when processing indirect ICBsJan Kara2014-09-041-14/+21
| | | | | | | | | | | | We did not implement any bound on number of indirect ICBs we follow when loading inode. Thus corrupted medium could cause kernel to go into an infinite loop, possibly causing a stack overflow. Fix the possible stack overflow by removing recursion from __udf_read_inode() and limit number of indirect ICBs we follow to avoid infinite loops. Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Fold udf_fill_inode() into __udf_read_inode()Jan Kara2014-09-041-17/+5
| | | | | | | There's no good reason to separate these since udf_fill_inode() is called only from __udf_read_inode() and both do part of the same thing. Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Avoid dir link count to go negativeJan Kara2014-09-041-1/+1
| | | | | | | | If we are writing back inode of unlinked directory, its link count ends up being (u16)-1. Although the inode is deleted, udf_iget() can load the inode when NFS uses stale file handle and get confused. Signed-off-by: Jan Kara <jack@suse.cz>
* switch {__,}blockdev_direct_IO() to iov_iterAl Viro2014-05-061-2/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* get rid of pointless iov_length() in ->direct_IO()Al Viro2014-05-061-1/+2
| | | | | | all callers have iov_length(iter->iov, iter->nr_segs) == iov_iter_count(iter) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* pass iov_iter to ->direct_IO()Al Viro2014-05-061-4/+4
| | | | | | unmodified, for now Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* mm + fs: store shadow entries in page cacheJohannes Weiner2014-04-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reclaim will be leaving shadow entries in the page cache radix tree upon evicting the real page. As those pages are found from the LRU, an iput() can lead to the inode being freed concurrently. At this point, reclaim must no longer install shadow pages because the inode freeing code needs to ensure the page tree is really empty. Add an address_space flag, AS_EXITING, that the inode freeing code sets under the tree lock before doing the final truncate. Reclaim will check for this flag before installing shadow pages. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Rik van Riel <riel@redhat.com> Reviewed-by: Minchan Kim <minchan@kernel.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Bob Liu <bob.liu@oracle.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Dave Chinner <david@fromorbit.com> Cc: Greg Thelen <gthelen@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jan Kara <jack@suse.cz> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Luigi Semenzato <semenzato@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Metin Doslu <metin@citusdata.com> Cc: Michel Lespinasse <walken@google.com> Cc: Ozgun Erdogan <ozgun@citusdata.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Roman Gushchin <klamm@yandex-team.ru> Cc: Ryan Mallon <rmallon@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* udf: Fix data corruption on file type conversionJan Kara2014-02-201-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | UDF has two types of files - files with data stored in inode (ICB in UDF terminology) and files with data stored in external data blocks. We convert file from in-inode format to external format in udf_file_aio_write() when we find out data won't fit into inode any longer. However the following race between two O_APPEND writes can happen: CPU1 CPU2 udf_file_aio_write() udf_file_aio_write() down_write(&iinfo->i_data_sem); checks that i_size + count1 fits within inode => no need to convert up_write(&iinfo->i_data_sem); down_write(&iinfo->i_data_sem); checks that i_size + count2 fits within inode => no need to convert up_write(&iinfo->i_data_sem); generic_file_aio_write() - extends file by count1 bytes generic_file_aio_write() - extends file by count2 bytes Clearly if count1 + count2 doesn't fit into the inode, we overwrite kernel buffers beyond inode, possibly corrupting the filesystem as well. Fix the problem by acquiring i_mutex before checking whether write fits into the inode and using __generic_file_aio_write() afterwards which puts check and write into one critical section. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Jan Kara <jack@suse.cz>
* truncate: drop 'oldsize' truncate_pagecache() parameterKirill A. Shutemov2013-09-121-1/+1
| | | | | | | | | | truncate_pagecache() doesn't care about old size since commit cedabed49b39 ("vfs: Fix vmtruncate() regression"). Let's drop it. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* aio: don't include aio.h in sched.hKent Overstreet2013-05-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Faster kernel compiles by way of fewer unnecessary includes. [akpm@linux-foundation.org: fix fallout] [akpm@linux-foundation.org: fix build] Signed-off-by: Kent Overstreet <koverstreet@google.com> Cc: Zach Brown <zab@redhat.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Jens Axboe <axboe@kernel.dk> Cc: Asai Thambi S P <asamymuthupa@micron.com> Cc: Selvan Mani <smani@micron.com> Cc: Sam Bradshaw <sbradshaw@micron.com> Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Benjamin LaHaise <bcrl@kvack.org> Reviewed-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* udf: add extent cache support in case of file readingNamjae Jeon2013-01-221-6/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements extent caching in case of file reading. While reading a file, currently, UDF reads metadata serially which takes a lot of time depending on the number of extents present in the file. Caching last accessd extent improves metadata read time. Instead of reading file metadata from start, now we read from the cached extent. This patch considerably improves the time spent by CPU in kernel mode. For example, while reading a 10.9 GB file using dd: Time before applying patch: 11677022208 bytes (10.9GB) copied, 1529.748921 seconds, 7.3MB/s real 25m 29.85s user 0m 12.41s sys 15m 34.75s Time after applying patch: 11677022208 bytes (10.9GB) copied, 1469.338231 seconds, 7.6MB/s real 24m 29.44s user 0m 15.73s sys 3m 27.61s [JK: Fix bh refcounting issues, simplify initialization] Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: Bonggil Bak <bgbak@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: remove un-needed variable from inode_getblkNamjae Jeon2012-12-131-3/+0
| | | | | | | | The variable last_block is not needed. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: don't increment lenExtents while writing to a holeNamjae Jeon2012-12-131-2/+5
| | | | | | | | | | | Incrementing lenExtents even while writing to a hole is bad for performance as calls to udf_discard_prealloc and udf_truncate_tail_extent would not return from start if isize != lenExtents Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: fix memory leak while allocating blocks during writeNamjae Jeon2012-12-131-0/+4
| | | | | | | | Need to brelse the buffer_head stored in cur_epos and next_epos. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz>
* Merge branch 'for_linus' of ↵Linus Torvalds2012-10-041-16/+43
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull ext3 & udf fixes from Jan Kara: "Shortlog pretty much says it all. The interesting bits are UDF support for direct IO and ext3 fix for a long standing oops in data=journal mode." * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: jbd: Fix assertion failure in commit code due to lacking transaction credits UDF: Add support for O_DIRECT ext3: Replace 0 with NULL for pointer in super.c file udf: add writepages support for udf ext3: don't clear orphan list on ro mount with errors reiserfs: Make reiserfs_xattr_handlers static
| * UDF: Add support for O_DIRECTIan Abbott2012-09-061-16/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the O_DIRECT flag. There are two cases to deal with: 1. Small files stored in the ICB (inode control block?): just return 0 from the new udf_adinicb_direct_IO() handler to fall back to buffered I/O. 2. Larger files, not stored in the ICB: nothing special here. Just call blockdev_direct_IO() from our new udf_direct_IO() handler and tidy up any blocks instantiated outside i_size on error. This is pretty standard. Factor error handling code out of udf_write_begin() into new function udf_write_failed() so it can also be called by udf_direct_IO(). Also change the whitespace in udf_aops to make it a bit neater. Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Jan Kara <jack@suse.cz>
| * udf: add writepages support for udfNamjae Jeon2012-09-041-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use mpage_writepages() instead of multiple calls to udf_writepage() to make performance higher. *Write Speed with writepage() = RecSize ReadSpeed WriteSpeed RanReadSpeed RanWriteSpeed 10485760 0.00MB/sec 8.56MB/sec 0.00MB/sec 8.20MB/sec 1048576 0.00MB/sec 8.57MB/sec 0.00MB/sec 6.42MB/sec 524288 0.00MB/sec 8.59MB/sec 0.00MB/sec 5.24MB/sec 262144 0.00MB/sec 8.59MB/sec 0.00MB/sec 4.17MB/sec 131072 0.00MB/sec 8.53MB/sec 0.00MB/sec 3.32MB/sec 65536 0.00MB/sec 8.49MB/sec 0.00MB/sec 2.31MB/sec *Write Speed with writepages() RecSize ReadSpeed WriteSpeed RanReadSpeed RanWriteSpeed 10485760 0.00MB/sec 9.88MB/sec 0.00MB/sec 9.60MB/sec 1048576 0.00MB/sec 9.95MB/sec 0.00MB/sec 7.52MB/sec 524288 0.00MB/sec 9.98MB/sec 0.00MB/sec 6.16MB/sec 262144 0.00MB/sec 9.90MB/sec 0.00MB/sec 4.98MB/sec 131072 0.00MB/sec 9.89MB/sec 0.00MB/sec 3.78MB/sec 65536 0.00MB/sec 9.81MB/sec 0.00MB/sec 2.50MB/sec There is about 1.4MB/sec speed improvement over 8.5MB/sec, which comes out around 16% improvement. Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Ashish Sangwan <ashish.sangwan2@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
* | Merge branch 'for-linus' of ↵Linus Torvalds2012-10-021-6/+6
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull user namespace changes from Eric Biederman: "This is a mostly modest set of changes to enable basic user namespace support. This allows the code to code to compile with user namespaces enabled and removes the assumption there is only the initial user namespace. Everything is converted except for the most complex of the filesystems: autofs4, 9p, afs, ceph, cifs, coda, fuse, gfs2, ncpfs, nfs, ocfs2 and xfs as those patches need a bit more review. The strategy is to push kuid_t and kgid_t values are far down into subsystems and filesystems as reasonable. Leaving the make_kuid and from_kuid operations to happen at the edge of userspace, as the values come off the disk, and as the values come in from the network. Letting compile type incompatible compile errors (present when user namespaces are enabled) guide me to find the issues. The most tricky areas have been the places where we had an implicit union of uid and gid values and were storing them in an unsigned int. Those places were converted into explicit unions. I made certain to handle those places with simple trivial patches. Out of that work I discovered we have generic interfaces for storing quota by projid. I had never heard of the project identifiers before. Adding full user namespace support for project identifiers accounts for most of the code size growth in my git tree. Ultimately there will be work to relax privlige checks from "capable(FOO)" to "ns_capable(user_ns, FOO)" where it is safe allowing root in a user names to do those things that today we only forbid to non-root users because it will confuse suid root applications. While I was pushing kuid_t and kgid_t changes deep into the audit code I made a few other cleanups. I capitalized on the fact we process netlink messages in the context of the message sender. I removed usage of NETLINK_CRED, and started directly using current->tty. Some of these patches have also made it into maintainer trees, with no problems from identical code from different trees showing up in linux-next. After reading through all of this code I feel like I might be able to win a game of kernel trivial pursuit." Fix up some fairly trivial conflicts in netfilter uid/git logging code. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (107 commits) userns: Convert the ufs filesystem to use kuid/kgid where appropriate userns: Convert the udf filesystem to use kuid/kgid where appropriate userns: Convert ubifs to use kuid/kgid userns: Convert squashfs to use kuid/kgid where appropriate userns: Convert reiserfs to use kuid and kgid where appropriate userns: Convert jfs to use kuid/kgid where appropriate userns: Convert jffs2 to use kuid and kgid where appropriate userns: Convert hpfs to use kuid and kgid where appropriate userns: Convert btrfs to use kuid/kgid where appropriate userns: Convert bfs to use kuid/kgid where appropriate userns: Convert affs to use kuid/kgid wherwe appropriate userns: On alpha modify linux_to_osf_stat to use convert from kuids and kgids userns: On ia64 deal with current_uid and current_gid being kuid and kgid userns: On ppc convert current_uid from a kuid before printing. userns: Convert s390 getting uid and gid system calls to use kuid and kgid userns: Convert s390 hypfs to use kuid and kgid where appropriate userns: Convert binder ipc to use kuids userns: Teach security_path_chown to take kuids and kgids userns: Add user namespace support to IMA userns: Convert EVM to deal with kuids and kgids in it's hmac computation ...
| * userns: Convert the udf filesystem to use kuid/kgid where appropriateEric W. Biederman2012-09-211-6/+6
| | | | | | | | | | Cc: Jan Kara <jack@suse.cz> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
* | udf: fix udf_setsize() for file data in ICBIan Abbott2012-08-151-1/+4
|/ | | | | | | | | | If the new size is larger than the old size and the old file data was stored in the ICB (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) and the new size still fits in the ICB, skip the call to udf_extend_file() as it does not handle this i_alloc_type value (it calls BUG()). Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Jan Kara <jack@suse.cz>
* UDF: Remove unnecessary variable "offset" from udf_fill_inodeAshish Sangwan2012-07-091-4/+0
| | | | | | | | The variable "offset" is not needed. Remove it. Signed-off-by: Ashish Sangwan <ashish.sangwan2@gmail.com> Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
* vfs: Rename end_writeback() to clear_inode()Jan Kara2012-05-061-1/+1
| | | | | | | | | After we moved inode_sync_wait() from end_writeback() it doesn't make sense to call the function end_writeback() anymore. Rename it to clear_inode() which well says what the function really does - set I_CLEAR flag. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
* udf: Fix file entry logicalBlocksRecordedSteve Nickel2012-02-291-6/+10
| | | | | | | | | ECMA 1.67 requires setting logicalBlocksRecorded to zero if the file has no extents. This should be checked in udf_update_inode(). udf_fill_inode() will then take care of itself. Signed-off-by: Steven P. Nickel <snickel@focusinfo.com> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Init/maintain file entry checkpoint fieldSteve Nickel2012-02-291-0/+4
| | | | | | | | In accordance with ECMA 1.67 Part 4, 14.9.15, the checkpoint field should be initialized to 1 at creation. (Zero is *not* a valid value.) Signed-off-by: Steven P. Nickel <snickel@focusinfo.com> Signed-off-by: Jan Kara <jack@suse.cz>
* Merge branch 'for_linus' of ↵Linus Torvalds2012-01-091-24/+33
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext2/3/4: delete unneeded includes of module.h ext{3,4}: Fix potential race when setversion ioctl updates inode udf: Mark LVID buffer as uptodate before marking it dirty ext3: Don't warn from writepage when readonly inode is spotted after error jbd: Remove j_barrier mutex reiserfs: Force inode evictions before umount to avoid crash reiserfs: Fix quota mount option parsing udf: Treat symlink component of type 2 as / udf: Fix deadlock when converting file from in-ICB one to normal one udf: Cleanup calling convention of inode_getblk() ext2: Fix error handling on inode bitmap corruption ext3: Fix error handling on inode bitmap corruption ext3: replace ll_rw_block with other functions ext3: NULL dereference in ext3_evict_inode() jbd: clear revoked flag on buffers before a new transaction started ext3: call ext3_mark_recovery_complete() when recovery is really needed
| * udf: Fix deadlock when converting file from in-ICB one to normal oneJan Kara2012-01-091-3/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During BKL removal in 2.6.38, conversion of files from in-ICB format to normal format got broken. We call ->writepage with i_data_sem held but udf_get_block() also acquires i_data_sem thus creating A-A deadlock. We fix the problem by dropping i_data_sem before calling ->writepage() which is safe since i_mutex still protects us against any changes in the file. Also fix pagelock - i_data_sem lock inversion in udf_expand_file_adinicb() by dropping i_data_sem before calling find_or_create_page(). CC: stable@kernel.org Reported-by: Matthias Matiak <netzpython@mail-on.us> Tested-by: Matthias Matiak <netzpython@mail-on.us> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
| * udf: Cleanup calling convention of inode_getblk()Jan Kara2012-01-091-21/+15
| | | | | | | | | | | | | | inode_getblk() always returned NULL and passed results in its parameters. Make the function return something useful - found block number. Signed-off-by: Jan Kara <jack@suse.cz>
* | udf: propagate umode_tAl Viro2012-01-031-3/+3
|/ | | | | | | | note re mount options: fmask and dmask are explicitly truncated to 12bit, UDF_INVALID_MODE just needs to be guaranteed to differ from any such value. And umask is used only in &= with umode_t, so we ignore other bits anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for-next' of ↵Linus Torvalds2011-11-021-3/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue: vfs: add d_prune dentry operation vfs: protect i_nlink filesystems: add set_nlink() filesystems: add missing nlink wrappers logfs: remove unnecessary nlink setting ocfs2: remove unnecessary nlink setting jfs: remove unnecessary nlink setting hypfs: remove unnecessary nlink setting vfs: ignore error on forced remount readlinkat: ensure we return ENOENT for the empty pathname for normal lookups vfs: fix dentry leak in simple_fill_super()
| * filesystems: add set_nlink()Miklos Szeredi2011-11-021-3/+5
| | | | | | | | | | | | | | | | | | Replace remaining direct i_nlink updates with a new set_nlink() updater function. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* | udf: Neaten udf_debug usesJoe Perches2011-10-311-2/+1
| | | | | | | | | | | | | | | | | | Just whitespace and argument alignment. Introduce some checkpatch warnings that deserve to be ignored. Reviewed-by: NamJae Jeon <linkinjeon@gmail.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>
* | udf: Convert printks to pr_<level>Joe Perches2011-10-311-20/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | Use the current logging styles. Convert a few printks that should have been udf_warn and udf_err. Coalesce formats. Add #define pr_fmt. Move an #include "udfdecls.h" above other includes in udftime.c so pr_fmt works correctly. Strip prefixes from conversions as appropriate. Reorder logging definitions in udfdecl.h Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>
* | udf: Add readpages support for udf.Namjae Jeon2011-10-061-1/+9
|/ | | | | | | | Use mpage_readpages() instead of multiple calls to udf_readpage() to reduce the CPU utilization and make performance higher. Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
* Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2011-03-241-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block: (65 commits) Documentation/iostats.txt: bit-size reference etc. cfq-iosched: removing unnecessary think time checking cfq-iosched: Don't clear queue stats when preempt. blk-throttle: Reset group slice when limits are changed blk-cgroup: Only give unaccounted_time under debug cfq-iosched: Don't set active queue in preempt block: fix non-atomic access to genhd inflight structures block: attempt to merge with existing requests on plug flush block: NULL dereference on error path in __blkdev_get() cfq-iosched: Don't update group weights when on service tree fs: assign sb->s_bdi to default_backing_dev_info if the bdi is going away block: Require subsystems to explicitly allocate bio_set integrity mempool jbd2: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging jbd: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging fs: make fsync_buffers_list() plug mm: make generic_writepages() use plugging blk-cgroup: Add unaccounted time to timeslice_used. block: fixup plugging stubs for !CONFIG_BLOCK block: remove obsolete comments for blkdev_issue_zeroout. blktrace: Use rq->cmd_flags directly in blk_add_trace_rq. ... Fix up conflicts in fs/{aio.c,super.c}
| * block: remove per-queue pluggingJens Axboe2011-03-101-1/+0
| | | | | | | | | | | | | | | | Code has been converted over to the new explicit on-stack plugging, and delay users have been converted to use the new API for that. So lets kill off the old plugging along with aops->sync_page(). Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* | udf: Convert UDF to new truncate calling sequenceJan Kara2011-02-231-73/+166
|/ | | | | | | Use new truncation sequence in UDF and fix up error handling in the code. Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Remove unnecessary bkl usagesAlessio Igor Bogani2011-01-061-3/+0
| | | | | | | | | | | | | | The udf_readdir(), udf_lookup(), udf_create(), udf_mknod(), udf_mkdir(), udf_rmdir(), udf_link(), udf_get_parent() and udf_unlink() seems already adequately protected by i_mutex held by VFS invoking calls. The udf_rename() instead should be already protected by lock_rename again by VFS. The udf_ioctl(), udf_fill_super() and udf_evict_inode() don't requires any further protection. This work was supported by a hardware donation from the CE Linux Forum. Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Replace bkl with the UDF_I(inode)->i_data_sem for protect ↵Alessio Igor Bogani2011-01-061-9/+10
| | | | | | | | | | | | | | | udf_inode_info struct Replace bkl with the UDF_I(inode)->i_data_sem rw semaphore in udf_release_file(), udf_symlink(), udf_symlink_filler(), udf_get_block(), udf_block_map(), and udf_setattr(). The rule now is that any operation on regular file's or symlink's extents (or generally allocation information including goal block) needs to hold i_data_sem. This work was supported by a hardware donation from the CE Linux Forum. Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Protect default inode credentials by rwlockJan Kara2011-01-061-7/+9
| | | | | | | | | Superblock carries credentials (uid, gid, etc.) which are used as default values in __udf_read_inode() when media does not provide these. These credentials can change during remount so we protect them by a rwlock so that each inode gets a consistent set of credentials. Signed-off-by: Jan Kara <jack@suse.cz>
* udf: Remove BKL from udf_update_inodeJan Kara2011-01-061-10/+3
| | | | | | | | | | | udf_update_inode() does not need BKL since on-disk inode modifications are protected by the buffer lock and reading of values of in-memory inode is safe without any lock. In some cases we can write inconsistent inode state to disk but in that case inode will be marked dirty and overwritten later. Also make unnecessarily global udf_sync_inode() static. Signed-off-by: Jan Kara <jack@suse.cz>
* switch udf to ->evict_inode()Al Viro2010-08-091-29/+19
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* get rid of block_write_begin_newtruncChristoph Hellwig2010-08-091-3/+10
| | | | | | | | | | | Move the call to vmtruncate to get rid of accessive blocks to the callers in preparation of the new truncate sequence and rename the non-truncating version to block_write_begin. While we're at it also remove several unused arguments to block_write_begin. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* udf: Remove dead quota codeJan Kara2010-05-241-5/+0
| | | | | | | | | | Quota on UDF is non-functional at least since 2.6.16 (I'm too lazy to do more archeology) because it does not provide .quota_write and .quota_read functions and thus quotaon(8) just returns EINVAL. Since nobody complained for all those years and quota support is not even in UDF standard just nuke it. Signed-off-by: Jan Kara <jack@suse.cz>
* udf: add speciffic ->setattr callbackDmitry Monakhov2010-04-081-1/+1
| | | | | | | | generic setattr not longer responsible for quota transfer. use udf_setattr for all udf's inodes. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz>
* Merge branch 'for_linus' of ↵Linus Torvalds2010-03-121-17/+17
|\ | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: udf: use ext2_find_next_bit udf: Do not read inode before writing it udf: Fix unalloc space handling in udf_update_inode
| * udf: Do not read inode before writing itJan Kara2010-03-091-3/+3
| | | | | | | | | | | | | | We needlessly read inode in udf_update_inode just before zeroing out the contents of the buffer. Fix it. Signed-off-by: Jan Kara <jack@suse.cz>
| * udf: Fix unalloc space handling in udf_update_inodeJan Kara2010-03-091-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | Writing of inode holding unallocated space info was broken because we first cleared the buffer and after that checked whether it contains a tag meaning the block holds unallocated space information. Fix the problem by checking appropriate in memory flag instead. Also cleanup the function a bit along the way - most importantly lock buffer when modifying its contents, check for buffer_write_io_error instead of !buffer_uptodate, etc.. Signed-off-by: Jan Kara <jack@suse.cz>
* | Merge branch 'for-next' into for-linusJiri Kosina2010-03-081-1/+1
|\ \ | |/ |/| | | | | | | | | | | | | Conflicts: Documentation/filesystems/proc.txt arch/arm/mach-u300/include/mach/debug-macro.S drivers/net/qlge/qlge_ethtool.c drivers/net/qlge/qlge_main.c drivers/net/typhoon.c
| * tree-wide: fix 'lenght' typo in comments and codeDaniel Mack2010-02-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | Some misspelled occurences of 'octet' and some comments were also fixed as I was on it. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Jiri Kosina <trivial@kernel.org> Cc: Joe Perches <joe@perches.com> Cc: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | Merge branch 'for_linus' of ↵Linus Torvalds2010-03-051-0/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (33 commits) quota: stop using QUOTA_OK / NO_QUOTA dquot: cleanup dquot initialize routine dquot: move dquot initialization responsibility into the filesystem dquot: cleanup dquot drop routine dquot: move dquot drop responsibility into the filesystem dquot: cleanup dquot transfer routine dquot: move dquot transfer responsibility into the filesystem dquot: cleanup inode allocation / freeing routines dquot: cleanup space allocation / freeing routines ext3: add writepage sanity checks ext3: Truncate allocated blocks if direct IO write fails to update i_size quota: Properly invalidate caches even for filesystems with blocksize < pagesize quota: generalize quota transfer interface quota: sb_quota state flags cleanup jbd: Delay discarding buffers in journal_unmap_buffer ext3: quota_write cross block boundary behaviour quota: drop permission checks from xfs_fs_set_xstate/xfs_fs_set_xquota quota: split out compat_sys_quotactl support from quota.c quota: split out netlink notification support from quota.c quota: remove invalid optimization from quota_sync_all ... Fixed trivial conflicts in fs/namei.c and fs/ufs/inode.c
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