11 Jan, 2012
1 commit
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Signed-off-by: Al Viro
07 Jan, 2012
1 commit
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Signed-off-by: Al Viro
04 Jan, 2012
7 commits
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Signed-off-by: Al Viro
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Signed-off-by: Al Viro
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vfs_create() ignores everything outside of 16bit subset of its
mode argument; switching it to umode_t is obviously equivalent
and it's the only caller of the methodSigned-off-by: Al Viro
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vfs_mkdir() gets int, but immediately drops everything that might not
fit into umode_t and that's the only caller of ->mkdir()...Signed-off-by: Al Viro
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Seeing that just about every destructor got that INIT_LIST_HEAD() copied into
it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once();
the cost of taking it into inode_init_always() will be negligible for pipes
and sockets and negative for everything else. Not to mention the removal of
boilerplate code from ->destroy_inode() instances...Signed-off-by: Al Viro
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new helper (wrapper around mnt_drop_write()) to be used in pair with
mnt_want_write_file().Signed-off-by: Al Viro
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it's both faster (in case when file has been opened for write) and cleaner.
Signed-off-by: Al Viro
02 Nov, 2011
2 commits
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Replace remaining direct i_nlink updates with a new set_nlink()
updater function.Signed-off-by: Miklos Szeredi
Tested-by: Toshiyuki Okajima
Signed-off-by: Christoph Hellwig -
Replace direct i_nlink updates with the respective updater function
(inc_nlink, drop_nlink, clear_nlink, inode_dec_link_count).Signed-off-by: Miklos Szeredi
16 Sep, 2011
2 commits
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generic_check_addressable can't deal with hfsplus's larger than page
size allocation blocks, so simply opencode the checks that we actually
need in hfsplus_fill_super.Signed-off-by: Christoph Hellwig
Reported-by: Pavel Ivanov
Tested-by: Pavel Ivanov
Signed-off-by: Linus Torvalds -
Commit 6596528e391a ("hfsplus: ensure bio requests are not smaller than
the hardware sectors") changed the pointers used for volume header
allocations but failed to free the correct pointers in the error path
path of hfsplus_fill_super() and hfsplus_read_wrapper.The second hunk came from a separate patch by Pavel Ivanov.
Reported-by: Pavel Ivanov
Signed-off-by: Seth Forshee
Signed-off-by: Christoph Hellwig
Cc:
Signed-off-by: Linus Torvalds
23 Jul, 2011
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (107 commits)
vfs: use ERR_CAST for err-ptr tossing in lookup_instantiate_filp
isofs: Remove global fs lock
jffs2: fix IN_DELETE_SELF on overwriting rename() killing a directory
fix IN_DELETE_SELF on overwriting rename() on ramfs et.al.
mm/truncate.c: fix build for CONFIG_BLOCK not enabled
fs:update the NOTE of the file_operations structure
Remove dead code in dget_parent()
AFS: Fix silly characters in a comment
switch d_add_ci() to d_splice_alias() in "found negative" case as well
simplify gfs2_lookup()
jfs_lookup(): don't bother with . or ..
get rid of useless dget_parent() in btrfs rename() and link()
get rid of useless dget_parent() in fs/btrfs/ioctl.c
fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers
drivers: fix up various ->llseek() implementations
fs: handle SEEK_HOLE/SEEK_DATA properly in all fs's that define their own llseek
Ext4: handle SEEK_HOLE/SEEK_DATA generically
Btrfs: implement our own ->llseek
fs: add SEEK_HOLE and SEEK_DATA flags
reiserfs: make reiserfs default to barrier=flush
...Fix up trivial conflicts in fs/xfs/linux-2.6/xfs_super.c due to the new
shrinker callout for the inode cache, that clashed with the xfs code to
start the periodic workers later.
22 Jul, 2011
2 commits
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Currently all bio requests are 512 bytes, which may fail for media
whose physical sector size is larger than this. Ensure these
requests are not smaller than the block device logical block size.BugLink: http://bugs.launchpad.net/bugs/734883
Signed-off-by: Seth Forshee
Signed-off-by: Christoph Hellwig -
'recoff' is read from disk and used for an argument to memcpy, so if
the value read from disk is larger than the page size, it result to
"general protection fault". This patch add additional range check for
the value, so that disk fuzz won't cause such fault.Signed-off-by: Naohiro Aota
Signed-off-by: Christoph Hellwig
21 Jul, 2011
3 commits
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Btrfs needs to be able to control how filemap_write_and_wait_range() is called
in fsync to make it less of a painful operation, so push down taking i_mutex and
the calling of filemap_write_and_wait() down into the ->fsync() handlers. Some
file systems can drop taking the i_mutex altogether it seems, like ext3 and
ocfs2. For correctness sake I just pushed everything down in all cases to make
sure that we keep the current behavior the same for everybody, and then each
individual fs maintainer can make up their mind about what to do from there.
Thanks,Acked-by: Jan Kara
Signed-off-by: Josef Bacik
Signed-off-by: Al Viro -
Simple filesystems always pass inode->i_sb_bdev as the block device
argument, and never need a end_io handler. Let's simply things for
them and for my grepping activity by dropping these arguments. The
only thing not falling into that scheme is ext4, which passes and
end_io handler without needing special flags (yet), but given how
messy the direct I/O code there is use of __blockdev_direct_IO
in one instead of two out of three cases isn't going to make a large
difference anyway.Signed-off-by: Christoph Hellwig
Signed-off-by: Al Viro -
Let filesystems handle waiting for direct I/O requests themselves instead
of doing it beforehand. This means filesystem-specific locks to prevent
new dio referenes from appearing can be held. This is important to allow
generalizing i_dio_count to non-DIO_LOCKING filesystems.Signed-off-by: Christoph Hellwig
Signed-off-by: Al Viro
07 Jul, 2011
2 commits
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Implement error propagation through the callers of
hfsplus_ext_write_extent_locked().Signed-off-by: Alexey Khoroshilov
Signed-off-by: Christoph Hellwig -
hfs_find_init() may fail with ENOMEM, but there are places, where
the returned value is not checked. The consequences can be very
unpleasant, e.g. kfree uninitialized pointer and
inappropriate mutex unlocking.The patch adds checks for errors in hfs_find_init().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov
Signed-off-by: Christoph Hellwig
30 Jun, 2011
6 commits
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Replace the hardcoded 2TB limit with a dynamic limit based on the block
size now that we have fixed the few overflows preventing operation
with large volumes.Signed-off-by: Christoph Hellwig
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For partitions larger than 2TB or at such an offset the hfs wrapper code
in hfsplus might overflow the range representable in a 32-bit
data type. Make sure we use a sector_t for the arithmetics leading to it.I'm not sure this code can be readed at all as hfs itself never supported
such large volumes.Signed-off-by: Christoph Hellwig
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For filesystems larger than 2TB the final sector number passed to
map_bh might overflow the range representable in a 32-bit data type.
Make sure we use a sector_t for it and the arithmetics calculating it.Signed-off-by: Christoph Hellwig
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Make assignments outside `if' conditions for unicode.c module
where the checkpatch.pl script reported this coding style error.Signed-off-by: Anton Salikhmetov
Signed-off-by: Christoph Hellwig -
There is a misprint in resource deallocation code on error path in
hfsplus_fill_super(): the sbi->alloc_file inode is iput twice,
while the root inode in not iput at all.Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov
Signed-off-by: Christoph Hellwig -
hfsplus leaks bio objects by failing to call bio_put() on the bios
it allocates. Add the missing call to fix the leak.Signed-off-by: Seth Forshee
Cc: # .38.x, .39.x
Signed-off-by: Christoph Hellwig
28 May, 2011
1 commit
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hfsplus does not have problems with references to unlinked directories.
Signed-off-by: Sage Weil
Signed-off-by: Al Viro
26 May, 2011
2 commits
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Only a few file systems need this. Start by pushing it down into each
rename method (except gfs2 and xfs) so that it can be dealt with on a
per-fs basis.Acked-by: Christoph Hellwig
Signed-off-by: Sage Weil
Signed-off-by: Al Viro -
Only a few file systems need this. Start by pushing it down into each
fs rmdir method (except gfs2 and xfs) so it can be dealt with on a per-fs
basis.This does not change behavior for any in-tree file systems.
Acked-by: Christoph Hellwig
Signed-off-by: Sage Weil
Signed-off-by: Al Viro
25 Mar, 2011
1 commit
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* '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}
24 Mar, 2011
1 commit
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And give it a kernel-doc comment.
[akpm@linux-foundation.org: btrfs changed in linux-next]
Signed-off-by: Serge E. Hallyn
Cc: "Eric W. Biederman"
Cc: Daniel Lezcano
Acked-by: David Howells
Cc: James Morris
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
10 Mar, 2011
1 commit
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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
04 Feb, 2011
4 commits
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Revert an incorrect hunk from commit b2837fcf4994e699a4def002e26f274d95b387c1,
"hfsplus: %L-to-%ll, macro correction, and remove unneeded braces"
revert a pointless change of comparism operation argument order, which turned
out to not even be equivalent.Reported-by: Joe Perches
Signed-off-by: Christoph Hellwig -
Signed-Off-By: Chuck Ebbert
Signed-off-by: Christoph Hellwig -
Signed-Off-By: Chuck Ebbert
Signed-off-by: Christoph Hellwig -
Currently the error handling in hfsplus_fill_super is a mess, and can
lead to accessing fields in the superblock that haven't been even set
up yet. Fix this by making sure we do not set up sb->s_root until we
have the mount fully set up, and before that do proper step by step
unwinding instead of using hfsplus_put_super as a big hammer.Reported-by: Dan Williams
Signed-off-by: Christoph Hellwig
13 Jan, 2011
1 commit
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Signed-off-by: Al Viro
08 Jan, 2011
1 commit
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* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/hfsplus:
hfsplus: %L-to-%ll, macro correction, and remove unneeded braces
hfsplus: spaces/indentation clean-up
hfsplus: C99 comments clean-up
hfsplus: over 80 character lines clean-up
hfsplus: fix an artifact in ioctl flag checking
hfsplus: flush disk caches in sync and fsync
hfsplus: optimize fsync
hfsplus: split up inode flags
hfsplus: write up fsync for directories
hfsplus: simplify fsync
hfsplus: avoid useless work in hfsplus_sync_fs
hfsplus: make sure sync writes out all metadata
hfsplus: use raw bio access for partition tables
hfsplus: use raw bio access for the volume headers
hfsplus: always use hfsplus_sync_fs to write the volume header
hfsplus: silence a few debug printks
hfsplus: fix option parsing during remountFix up conflicts due to VFS changes in fs/hfsplus/{hfsplus_fs.h,unicode.c}
07 Jan, 2011
1 commit
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Reduce some branches and memory accesses in dcache lookup by adding dentry
flags to indicate common d_ops are set, rather than having to check them.
This saves a pointer memory access (dentry->d_op) in common path lookup
situations, and saves another pointer load and branch in cases where we
have d_op but not the particular operation.Patched with:
git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i
Signed-off-by: Nick Piggin
