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Commit 2b665e27 authored by Gu Zheng's avatar Gu Zheng Committed by Linus Torvalds
Browse files

fs/direct-io.c: remove redundant comparison 



The return value of bio_get_nr_vecs() cannot be bigger than
BIO_MAX_PAGES, so we can remove redundant the comparison between
nr_pages and BIO_MAX_PAGES.

Signed-off-by: default avatarGu Zheng <guz.fnst@cn.fujitsu.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: default avatarJeff Moyer <jmoyer@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 9c339255

fs/direct-io.c

+0 −1
Original line number Diff line number Diff line
@@ -664,7 +664,6 @@ static inline int dio_new_bio(struct dio *dio, struct dio_submit *sdio, 
		goto out;

	sector = start_sector << (sdio->blkbits - 9);

	nr_pages = min(sdio->pages_in_io, bio_get_nr_vecs(map_bh->b_bdev));

	nr_pages = min(nr_pages, BIO_MAX_PAGES);

	BUG_ON(nr_pages <= 0);

	dio_bio_alloc(dio, sdio, map_bh->b_bdev, sector, nr_pages);

	sdio->boundary = 0;