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authorKent Overstreet <kent.overstreet@gmail.com>2013-09-25 13:37:01 -0700
committerJens Axboe <axboe@fb.com>2015-08-13 12:31:54 -0600
commit7140aafce2fc14c5af02fdb7859b6bea0108be3d (patch)
tree713953c5dfa02e66fd4079f23bd3e4cec831302d
parent7ef6b12a1966f273afb750e19e1e8129bea48fec (diff)
downloadlinux-7140aafce2fc14c5af02fdb7859b6bea0108be3d.tar.bz2
md/raid5: get rid of bio_fits_rdev()
Remove bio_fits_rdev() as sufficient merge_bvec_fn() handling is now performed by blk_queue_split() in md_make_request(). Cc: Neil Brown <neilb@suse.de> Cc: linux-raid@vger.kernel.org Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> [dpark: add more description in commit message] Signed-off-by: Dongsu Park <dpark@posteo.net> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Jens Axboe <axboe@fb.com>
-rw-r--r--drivers/md/raid5.c23
1 files changed, 1 insertions, 22 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 256cc07f0874..7823295332de 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4781,25 +4781,6 @@ static void raid5_align_endio(struct bio *bi)
add_bio_to_retry(raid_bi, conf);
}
-static int bio_fits_rdev(struct bio *bi)
-{
- struct request_queue *q = bdev_get_queue(bi->bi_bdev);
-
- if (bio_sectors(bi) > queue_max_sectors(q))
- return 0;
- blk_recount_segments(q, bi);
- if (bi->bi_phys_segments > queue_max_segments(q))
- return 0;
-
- if (q->merge_bvec_fn)
- /* it's too hard to apply the merge_bvec_fn at this stage,
- * just just give up
- */
- return 0;
-
- return 1;
-}
-
static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio)
{
struct r5conf *conf = mddev->private;
@@ -4853,11 +4834,9 @@ static int raid5_read_one_chunk(struct mddev *mddev, struct bio *raid_bio)
align_bi->bi_bdev = rdev->bdev;
bio_clear_flag(align_bi, BIO_SEG_VALID);
- if (!bio_fits_rdev(align_bi) ||
- is_badblock(rdev, align_bi->bi_iter.bi_sector,
+ if (is_badblock(rdev, align_bi->bi_iter.bi_sector,
bio_sectors(align_bi),
&first_bad, &bad_sectors)) {
- /* too big in some way, or has a known bad block */
bio_put(align_bi);
rdev_dec_pending(rdev, mddev);
return 0;