diff options
| author |   Mike Snitzer <snitzer@redhat.com> | 2017-12-14 16:30:42 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2017-12-16 20:43:15 -0500 |
| commit | bc02cdbe53eadcef75221c3f1f48cdcbdb9cb6ef (patch) | |
| tree | e243fa6f977d88fec8f83a835749d8546849c2f0 /drivers/md/dm.c | |
| parent | dm: remove now unused bio-based io_pool and _io_cache (diff) | |
| download | linux-dev-bc02cdbe53eadcef75221c3f1f48cdcbdb9cb6ef.tar.xz linux-dev-bc02cdbe53eadcef75221c3f1f48cdcbdb9cb6ef.zip | |
dm: remove redundant mapped_device member from clone_info structure
'struct dm_io' already has the same pointer. So update all accesses
from ci->md to ci->io->md.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 4284ad8d9892..e4213c4c7c9b 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -63,7 +63,6 @@ void dm_issue_global_event(void) * One of these is allocated (on-stack) per original bio. */ struct clone_info { - struct mapped_device *md; struct dm_table *map; struct bio *bio; struct dm_io *io; @@ -567,7 +566,7 @@ static struct dm_target_io *alloc_tio(struct clone_info *ci, struct dm_target *t /* the dm_target_io embedded in ci->io is available */ tio = &ci->io->tio; } else { - struct bio *clone = bio_alloc_bioset(gfp_mask, 0, ci->md->bs); + struct bio *clone = bio_alloc_bioset(gfp_mask, 0, ci->io->md->bs); if (!clone) return NULL; @@ -1298,7 +1297,7 @@ static void alloc_multiple_bios(struct bio_list *blist, struct clone_info *ci, struct bio *bio; if (try) - mutex_lock(&ci->md->table_devices_lock); + mutex_lock(&ci->io->md->table_devices_lock); for (bio_nr = 0; bio_nr < num_bios; bio_nr++) { tio = alloc_tio(ci, ti, bio_nr, try ? GFP_NOIO : GFP_NOWAIT); if (!tio) @@ -1307,7 +1306,7 @@ static void alloc_multiple_bios(struct bio_list *blist, struct clone_info *ci, bio_list_add(blist, &tio->clone); } if (try) - mutex_unlock(&ci->md->table_devices_lock); + mutex_unlock(&ci->io->md->table_devices_lock); if (bio_nr == num_bios) return; @@ -1500,7 +1499,6 @@ static void __split_and_process_bio(struct mapped_device *md, } ci.map = map; - ci.md = md; ci.io = alloc_io(md); ci.io->status = 0; atomic_set(&ci.io->io_count, 1); @@ -1512,7 +1510,7 @@ static void __split_and_process_bio(struct mapped_device *md, start_io_acct(ci.io); if (bio->bi_opf & REQ_PREFLUSH) { - ci.bio = &ci.md->flush_bio; + ci.bio = &ci.io->md->flush_bio; ci.sector_count = 0; error = __send_empty_flush(&ci); /* dec_pending submits any data associated with flush */ |