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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2017-05-09 01:58:59 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-09 03:15:14 +0300
commitc718a97514e4d77c97a35734b728aaf541a0621b (patch)
treeee3ecc300b4f02c8e27af51a24607068b54a0f61 /Documentation/filesystems
parentf44a2920c84af809883ecbbd08d47fb5fe47c8ad (diff)
downloadlinux-c718a97514e4d77c97a35734b728aaf541a0621b.tar.xz
fs: semove set but not checked AOP_FLAG_UNINTERRUPTIBLE flag
Commit afddba49d18f ("fs: introduce write_begin, write_end, and perform_write aops") introduced AOP_FLAG_UNINTERRUPTIBLE flag which was checked in pagecache_write_begin(), but that check was removed by 4e02ed4b4a2f ("fs: remove prepare_write/commit_write"). Between these two commits, commit d9414774dc0c ("cifs: Convert cifs to new aops.") added a check in cifs_write_begin(), but that check was soon removed by commit a98ee8c1c707 ("[CIFS] fix regression in cifs_write_begin/cifs_write_end"). Therefore, AOP_FLAG_UNINTERRUPTIBLE flag is checked nowhere. Let's remove this flag. This patch has no functionality changes. Link: http://lkml.kernel.org/r/1489294781-53494-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reviewed-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Nick Piggin <npiggin@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/vfs.txt3
1 files changed, 1 insertions, 2 deletions
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 94dd27ef4a76..f42b90687d40 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -694,8 +694,7 @@ struct address_space_operations {
write_end: After a successful write_begin, and data copy, write_end must
be called. len is the original len passed to write_begin, and copied
- is the amount that was able to be copied (copied == len is always true
- if write_begin was called with the AOP_FLAG_UNINTERRUPTIBLE flag).
+ is the amount that was able to be copied.
The filesystem must take care of unlocking the page and releasing it
refcount, and updating i_size.