diff options
| author | Kent Overstreet <koverstreet@google.com> | 2012-09-25 15:05:12 -0700 |
|---|---|---|
| committer | Kent Overstreet <koverstreet@google.com> | 2013-03-23 14:15:29 -0700 |
| commit | f73a1c7d117d07a96d89475066188a2b79e53c48 (patch) | |
| tree | b2343926df6cf7877ee398ba485a962148b67804 /drivers/md/raid5.c | |
| parent | fb9e3534768c1daa0bd09dd00d1a8828e15079c8 (diff) | |
| download | linux-f73a1c7d117d07a96d89475066188a2b79e53c48.tar.gz linux-f73a1c7d117d07a96d89475066188a2b79e53c48.tar.bz2 linux-f73a1c7d117d07a96d89475066188a2b79e53c48.zip | |
block: Add bio_end_sector()
Just a little convenience macro - main reason to add it now is preparing
for immutable bio vecs, it'll reduce the size of the patch that puts
bi_sector/bi_size/bi_idx into a struct bvec_iter.
Signed-off-by: Kent Overstreet <koverstreet@google.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: Lars Ellenberg <drbd-dev@lists.linbit.com>
CC: Jiri Kosina <jkosina@suse.cz>
CC: Alasdair Kergon <agk@redhat.com>
CC: dm-devel@redhat.com
CC: Neil Brown <neilb@suse.de>
CC: Martin Schwidefsky <schwidefsky@de.ibm.com>
CC: Heiko Carstens <heiko.carstens@de.ibm.com>
CC: linux-s390@vger.kernel.org
CC: Chris Mason <chris.mason@fusionio.com>
CC: Steven Whitehouse <swhiteho@redhat.com>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 3ee2912889e7..68706970d217 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -2384,11 +2384,11 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in } else bip = &sh->dev[dd_idx].toread; while (*bip && (*bip)->bi_sector < bi->bi_sector) { - if ((*bip)->bi_sector + ((*bip)->bi_size >> 9) > bi->bi_sector) + if (bio_end_sector(*bip) > bi->bi_sector) goto overlap; bip = & (*bip)->bi_next; } - if (*bip && (*bip)->bi_sector < bi->bi_sector + ((bi->bi_size)>>9)) + if (*bip && (*bip)->bi_sector < bio_end_sector(bi)) goto overlap; BUG_ON(*bip && bi->bi_next && (*bip) != bi->bi_next); @@ -2404,8 +2404,8 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in sector < sh->dev[dd_idx].sector + STRIPE_SECTORS && bi && bi->bi_sector <= sector; bi = r5_next_bio(bi, sh->dev[dd_idx].sector)) { - if (bi->bi_sector + (bi->bi_size>>9) >= sector) - sector = bi->bi_sector + (bi->bi_size>>9); + if (bio_end_sector(bi) >= sector) + sector = bio_end_sector(bi); } if (sector >= sh->dev[dd_idx].sector + STRIPE_SECTORS) set_bit(R5_OVERWRITE, &sh->dev[dd_idx].flags); @@ -3941,7 +3941,7 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) 0, &dd_idx, NULL); - end_sector = align_bi->bi_sector + (align_bi->bi_size >> 9); + end_sector = bio_end_sector(align_bi); rcu_read_lock(); rdev = rcu_dereference(conf->disks[dd_idx].replacement); if (!rdev || test_bit(Faulty, &rdev->flags) || @@ -4216,7 +4216,7 @@ static void make_request(struct mddev *mddev, struct bio * bi) } logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1); - last_sector = bi->bi_sector + (bi->bi_size>>9); + last_sector = bio_end_sector(bi); bi->bi_next = NULL; bi->bi_phys_segments = 1; /* over-loaded to count active stripes */ @@ -4679,7 +4679,7 @@ static int retry_aligned_read(struct r5conf *conf, struct bio *raid_bio) logical_sector = raid_bio->bi_sector & ~((sector_t)STRIPE_SECTORS-1); sector = raid5_compute_sector(conf, logical_sector, 0, &dd_idx, NULL); - last_sector = raid_bio->bi_sector + (raid_bio->bi_size>>9); + last_sector = bio_end_sector(raid_bio); for (; logical_sector < last_sector; logical_sector += STRIPE_SECTORS, |