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authorhaiqing.shq2018-10-26 15:07:22 -0700
committerLinus Torvalds2018-10-26 16:26:33 -0700
commit3cb7b121ff4dfbf202845b8ea27d9a437eae210f (patch)
treeb51368c078969a0e3bc16f6e369e230f45c84a1f
parentcb4922496ae40a775a1b17025eaa1060e8991253 (diff)
mm/filemap.c: Use existing variable
Use the variable write_len instead of ov_iter_count(from). Link: http://lkml.kernel.org/r/1537375855-2088-1-git-send-email-leviathan0992@gmail.com Signed-off-by: haiqing.shq <leviathan0992@gmail.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jan Kara <jack@suse.cz> 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>
-rw-r--r--mm/filemap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 41586009fa42..0b8c6de6d995 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3027,7 +3027,7 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
if (iocb->ki_flags & IOCB_NOWAIT) {
/* If there are pages to writeback, return */
if (filemap_range_has_page(inode->i_mapping, pos,
- pos + iov_iter_count(from)))
+ pos + write_len))
return -EAGAIN;
} else {
written = filemap_write_and_wait_range(mapping, pos,