diff options
| author | Kent Overstreet <koverstreet@google.com> | 2012-09-11 23:26:38 +0400 |
|---|---|---|
| committer | Kent Overstreet <koverstreet@google.com> | 2013-03-24 01:15:35 +0400 |
| commit | 2f6db2a7073452b123726e2baab1f37d511bf86d (patch) | |
| tree | 3060d24489efc7b40f344dff157d1a5d55d671a9 /drivers/md/raid5.c | |
| parent | 2aabaa65ad147bf8238a8a261b15a0c95e9e2afa (diff) | |
| download | linux-2f6db2a7073452b123726e2baab1f37d511bf86d.tar.xz | |
raid5: use bio_reset()
Had to shuffle the code around a bit (where bi_rw and bi_end_io were
set), but shouldn't really be anything tricky here
Signed-off-by: Kent Overstreet <koverstreet@google.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/raid5.c')
| -rw-r--r-- | drivers/md/raid5.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 4e0f87e462ce..7bbd28546214 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -567,14 +567,6 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) bi = &sh->dev[i].req; rbi = &sh->dev[i].rreq; /* For writing to replacement */ - bi->bi_rw = rw; - rbi->bi_rw = rw; - if (rw & WRITE) { - bi->bi_end_io = raid5_end_write_request; - rbi->bi_end_io = raid5_end_write_request; - } else - bi->bi_end_io = raid5_end_read_request; - rcu_read_lock(); rrdev = rcu_dereference(conf->disks[i].replacement); smp_mb(); /* Ensure that if rrdev is NULL, rdev won't be */ @@ -649,7 +641,14 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) set_bit(STRIPE_IO_STARTED, &sh->state); + bio_reset(bi); bi->bi_bdev = rdev->bdev; + bi->bi_rw = rw; + bi->bi_end_io = (rw & WRITE) + ? raid5_end_write_request + : raid5_end_read_request; + bi->bi_private = sh; + pr_debug("%s: for %llu schedule op %ld on disc %d\n", __func__, (unsigned long long)sh->sector, bi->bi_rw, i); @@ -663,12 +662,9 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) bi->bi_rw |= REQ_FLUSH; - bi->bi_flags = 1 << BIO_UPTODATE; - bi->bi_idx = 0; bi->bi_io_vec[0].bv_len = STRIPE_SIZE; bi->bi_io_vec[0].bv_offset = 0; bi->bi_size = STRIPE_SIZE; - bi->bi_next = NULL; if (rrdev) set_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags); trace_block_bio_remap(bdev_get_queue(bi->bi_bdev), @@ -683,7 +679,13 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) set_bit(STRIPE_IO_STARTED, &sh->state); + bio_reset(rbi); rbi->bi_bdev = rrdev->bdev; + rbi->bi_rw = rw; + BUG_ON(!(rw & WRITE)); + rbi->bi_end_io = raid5_end_write_request; + rbi->bi_private = sh; + pr_debug("%s: for %llu schedule op %ld on " "replacement disc %d\n", __func__, (unsigned long long)sh->sector, @@ -695,12 +697,9 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) else rbi->bi_sector = (sh->sector + rrdev->data_offset); - rbi->bi_flags = 1 << BIO_UPTODATE; - rbi->bi_idx = 0; rbi->bi_io_vec[0].bv_len = STRIPE_SIZE; rbi->bi_io_vec[0].bv_offset = 0; rbi->bi_size = STRIPE_SIZE; - rbi->bi_next = NULL; trace_block_bio_remap(bdev_get_queue(rbi->bi_bdev), rbi, disk_devt(conf->mddev->gendisk), sh->dev[i].sector); |