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mm/filemap.c: Use existing variable

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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>
This commit is contained in:
haiqing.shq 2018-10-26 15:07:22 -07:00 committed by Linus Torvalds
parent cb4922496a
commit 3cb7b121ff
1 changed files with 1 additions and 1 deletions
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mm/filemap.c
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@ -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,