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: Gu Zheng <[email protected]> Cc: Al Viro <[email protected]> Reviewed-by: Jeff Moyer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
josf · Apr 3, 2014 · 2b665e2 · 2b665e2
1 parent 9c33925
commit 2b665e2
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/fs/direct-io.c b/fs/direct-io.c
@@ -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;