diff options
| author | Mikulas Patocka <mpatocka@redhat.com> | 2012-12-22 00:23:39 +0400 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2012-12-22 00:23:39 +0400 |
| commit | ddbd658f6446a35e4d6ba84812fd71023320cae2 (patch) | |
| tree | 6c5bf9fd1cab10d20c21eb8582a5cc73f1bccc85 /drivers | |
| parent | 42bc954f2a4525c9034667dedc9bd1c342208013 (diff) | |
| download | linux-ddbd658f6446a35e4d6ba84812fd71023320cae2.tar.xz | |
dm: move target request nr to dm_target_io
This patch moves target_request_nr from map_info to dm_target_io and
makes it accessible with dm_bio_get_target_request_nr.
This patch is a preparation for the next patch that removes map_info.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm-snap.c | 2 | ||||
| -rw-r--r-- | drivers/md/dm-stripe.c | 4 | ||||
| -rw-r--r-- | drivers/md/dm.c | 3 |
3 files changed, 5 insertions, 4 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 5e88bc437be0..b7e179cdc5af 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -1682,7 +1682,7 @@ static int snapshot_merge_map(struct dm_target *ti, struct bio *bio, chunk_t chunk; if (bio->bi_rw & REQ_FLUSH) { - if (!map_context->target_request_nr) + if (!dm_bio_get_target_request_nr(bio)) bio->bi_bdev = s->origin->bdev; else bio->bi_bdev = s->cow->bdev; diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c index e2f876539743..4e7ba82146c0 100644 --- a/drivers/md/dm-stripe.c +++ b/drivers/md/dm-stripe.c @@ -279,13 +279,13 @@ static int stripe_map(struct dm_target *ti, struct bio *bio, unsigned target_request_nr; if (bio->bi_rw & REQ_FLUSH) { - target_request_nr = map_context->target_request_nr; + target_request_nr = dm_bio_get_target_request_nr(bio); BUG_ON(target_request_nr >= sc->stripes); bio->bi_bdev = sc->stripe[target_request_nr].dev->bdev; return DM_MAPIO_REMAPPED; } if (unlikely(bio->bi_rw & REQ_DISCARD)) { - target_request_nr = map_context->target_request_nr; + target_request_nr = dm_bio_get_target_request_nr(bio); BUG_ON(target_request_nr >= sc->stripes); return stripe_map_discard(sc, bio, target_request_nr); } diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 2765cf2ba0ff..5ee580b4f330 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1099,6 +1099,7 @@ static struct dm_target_io *alloc_tio(struct clone_info *ci, tio->io = ci->io; tio->ti = ti; memset(&tio->info, 0, sizeof(tio->info)); + tio->target_request_nr = 0; return tio; } @@ -1109,7 +1110,7 @@ static void __issue_target_request(struct clone_info *ci, struct dm_target *ti, struct dm_target_io *tio = alloc_tio(ci, ti, ci->bio->bi_max_vecs); struct bio *clone = &tio->clone; - tio->info.target_request_nr = request_nr; + tio->target_request_nr = request_nr; /* * Discard requests require the bio's inline iovecs be initialized. |