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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2017-05-09 00:58:59 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2017-05-09 02:15:14 +0200
commitc718a97514e4d77c97a35734b728aaf541a0621b (patch)
treeee3ecc300b4f02c8e27af51a24607068b54a0f61 /mm/filemap.c
parentinclude/linux/uaccess.h: remove expensive WARN_ON in pagefault_disabled_dec (diff)
downloadlinux-c718a97514e4d77c97a35734b728aaf541a0621b.tar.xz
linux-c718a97514e4d77c97a35734b728aaf541a0621b.zip
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 'mm/filemap.c')
-rw-r--r--mm/filemap.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 681da61080bc..b7b973b47d8d 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2791,12 +2791,6 @@ ssize_t generic_perform_write(struct file *file,
ssize_t written = 0;
unsigned int flags = 0;
- /*
- * Copies from kernel address space cannot fail (NFSD is a big user).
- */
- if (!iter_is_iovec(i))
- flags |= AOP_FLAG_UNINTERRUPTIBLE;
-
do {
struct page *page;
unsigned long offset; /* Offset into pagecache page */