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  1. 05 9月, 2012 1 次提交
    • J
      udf: Fix data corruption for files in ICB · 9c2fc0de
      由 Jan Kara 提交于 
      When a file is stored in ICB (inode), we overwrite part of the file, and
the page containing file's data is not in page cache, we end up corrupting
file's data by overwriting them with zeros. The problem is we use
simple_write_begin() which simply zeroes parts of the page which are not
written to. The problem has been introduced by be021ee4 (udf: convert to
new aops).

Fix the problem by providing a ->write_begin function which makes the page
properly uptodate.

CC: <stable@vger.kernel.org> # >= 2.6.24
Reported-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NJan Kara <jack@suse.cz>
      9c2fc0de
  3. 20 3月, 2012 1 次提交
  5. 11 3月, 2012 1 次提交
  7. 01 3月, 2012 1 次提交
  9. 09 1月, 2012 1 次提交
  11. 20 7月, 2011 1 次提交
  13. 10 3月, 2011 1 次提交
  15. 23 2月, 2011 1 次提交
  17. 07 1月, 2011 3 次提交
  19. 10 8月, 2010 2 次提交
    • C
      remove inode_setattr · 1025774c
      由 Christoph Hellwig 提交于 
      Replace inode_setattr with opencoded variants of it in all callers.  This
moves the remaining call to vmtruncate into the filesystem methods where it
can be replaced with the proper truncate sequence.

In a few cases it was obvious that we would never end up calling vmtruncate
so it was left out in the opencoded variant:

 spufs: explicitly checks for ATTR_SIZE earlier
 btrfs,hugetlbfs,logfs,dlmfs: explicitly clears ATTR_SIZE earlier
 ufs: contains an opencoded simple_seattr + truncate that sets the filesize just above

In addition to that ncpfs called inode_setattr with handcrafted iattrs,
which allowed to trim down the opencoded variant.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      1025774c
    • C
      add missing setattr methods · d39aae9e
      由 Christoph Hellwig 提交于 
      For the new truncate sequence every filesystem that wants to truncate on-disk
state needs a seattr method.  Convert the remaining filesystems that implement
the truncate inode operation to have its own setattr method.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      d39aae9e
  21. 02 8月, 2010 1 次提交
  23. 28 5月, 2010 1 次提交
    • C
      rename the generic fsync implementations · 1b061d92
      由 Christoph Hellwig 提交于 
      We don't name our generic fsync implementations very well currently.
The no-op implementation for in-memory filesystems currently is called
simple_sync_file which doesn't make too much sense to start with,
the the generic one for simple filesystems is called simple_fsync
which can lead to some confusion.

This patch renames the generic file fsync method to generic_file_fsync
to match the other generic_file_* routines it is supposed to be used
with, and the no-op implementation to noop_fsync to make it obvious
what to expect.  In addition add some documentation for both methods.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
      1b061d92
  25. 24 5月, 2010 1 次提交
    • J
      udf: Remove dead quota code · 36350462
      由 Jan Kara 提交于 
      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: NJan Kara <jack@suse.cz>
      36350462
  27. 22 5月, 2010 1 次提交
  29. 05 5月, 2010 1 次提交
  31. 08 4月, 2010 1 次提交
  33. 05 3月, 2010 4 次提交
    • C
      dquot: cleanup dquot initialize routine · 871a2931
      由 Christoph Hellwig 提交于 
      Get rid of the initialize dquot operation - it is now always called from
the filesystem and if a filesystem really needs it's own (which none
currently does) it can just call into it's own routine directly.

Rename the now static low-level dquot_initialize helper to __dquot_initialize
and vfs_dq_init to dquot_initialize to have a consistent namespace.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJan Kara <jack@suse.cz>
      871a2931
    • C
      dquot: move dquot initialization responsibility into the filesystem · 907f4554
      由 Christoph Hellwig 提交于 
      Currently various places in the VFS call vfs_dq_init directly.  This means
we tie the quota code into the VFS.  Get rid of that and make the
filesystem responsible for the initialization.   For most metadata operations
this is a straight forward move into the methods, but for truncate and
open it's a bit more complicated.

For truncate we currently only call vfs_dq_init for the sys_truncate case
because open already takes care of it for ftruncate and open(O_TRUNC) - the
new code causes an additional vfs_dq_init for those which is harmless.

For open the initialization is moved from do_filp_open into the open method,
which means it happens slightly earlier now, and only for regular files.
The latter is fine because we don't need to initialize it for operations
on special files, and we already do it as part of the namespace operations
for directories.

Add a dquot_file_open helper that filesystems that support generic quotas
can use to fill in ->open.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJan Kara <jack@suse.cz>
      907f4554
    • C
      dquot: cleanup dquot transfer routine · b43fa828
      由 Christoph Hellwig 提交于 
      Get rid of the transfer dquot operation - it is now always called from
the filesystem and if a filesystem really needs it's own (which none
currently does) it can just call into it's own routine directly.

Rename the now static low-level dquot_transfer helper to __dquot_transfer
and vfs_dq_transfer to dquot_transfer to have a consistent namespace,
and make the new dquot_transfer return a normal negative errno value
which all callers expect.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJan Kara <jack@suse.cz>
      b43fa828
    • C
      dquot: move dquot transfer responsibility into the filesystem · 759bfee6
      由 Christoph Hellwig 提交于 
      Currently notify_change calls vfs_dq_transfer directly.  This means
we tie the quota code into the VFS.  Get rid of that and make the
filesystem responsible for the transfer.  Most filesystems already
do this, only ufs and udf need the code added, and for jfs it needs to
be enabled unconditionally instead of only when ACLs are enabled.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJan Kara <jack@suse.cz>
      759bfee6
  35. 15 12月, 2009 1 次提交
    • J
      udf: Avoid IO in udf_clear_inode · 2c948b3f
      由 Jan Kara 提交于 
      It is not very good to do IO in udf_clear_inode. First, VFS does not really
expect inode to become dirty there and thus we have to write it ourselves,
second, memory reclaim gets blocked waiting for IO when it does not really
expect it, third, the IO pattern (e.g. on umount) resulting from writes in
udf_clear_inode is bad and it slows down writing a lot.

The reason why UDF needed to do IO in udf_clear_inode is that UDF standard
mandates extent length to exactly match inode size. But when we allocate
extents to a file or directory, we don't really know what exactly the final
file size will be and thus temporarily set it to block boundary and later
truncate it to exact length in udf_clear_inode. Now, this is changed to
truncate to final file size in udf_release_file for regular files. For
directories and symlinks, we do the truncation at the moment when learn
what the final file size will be.
Signed-off-by: NJan Kara <jack@suse.cz>
      2c948b3f
  37. 15 9月, 2009 1 次提交
  39. 12 6月, 2009 1 次提交
  41. 09 9月, 2008 1 次提交
  43. 17 4月, 2008 2 次提交
  45. 09 2月, 2008 4 次提交
  47. 17 10月, 2007 1 次提交
  49. 22 7月, 2007 1 次提交
  51. 20 7月, 2007 1 次提交
  53. 10 7月, 2007 1 次提交
  55. 22 5月, 2007 1 次提交
    • A
      Detach sched.h from mm.h · e8edc6e0
      由 Alexey Dobriyan 提交于 
      First thing mm.h does is including sched.h solely for can_do_mlock() inline
function which has "current" dereference inside. By dealing with can_do_mlock()
mm.h can be detached from sched.h which is good. See below, why.

This patch
a) removes unconditional inclusion of sched.h from mm.h
b) makes can_do_mlock() normal function in mm/mlock.c
c) exports can_do_mlock() to not break compilation
d) adds sched.h inclusions back to files that were getting it indirectly.
e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
   getting them indirectly

Net result is:
a) mm.h users would get less code to open, read, preprocess, parse, ... if
   they don't need sched.h
b) sched.h stops being dependency for significant number of files:
   on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
   after patch it's only 3744 (-8.3%).

Cross-compile tested on

	all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
	alpha alpha-up
	arm
	i386 i386-up i386-defconfig i386-allnoconfig
	ia64 ia64-up
	m68k
	mips
	parisc parisc-up
	powerpc powerpc-up
	s390 s390-up
	sparc sparc-up
	sparc64 sparc64-up
	um-x86_64
	x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig

as well as my two usual configs.
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      e8edc6e0
  57. 13 2月, 2007 1 次提交
  59. 09 12月, 2006 1 次提交