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Diffstat (limited to 'drivers/md/dm.c')
-rw-r--r--drivers/md/dm.c24
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 8c53b09b9a2c..455e64916498 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -94,13 +94,6 @@ struct dm_rq_clone_bio_info {
struct bio clone;
};
-union map_info *dm_get_mapinfo(struct bio *bio)
-{
- if (bio && bio->bi_private)
- return &((struct dm_target_io *)bio->bi_private)->info;
- return NULL;
-}
-
union map_info *dm_get_rq_mapinfo(struct request *rq)
{
if (rq && rq->end_io_data)
@@ -475,6 +468,11 @@ sector_t dm_get_size(struct mapped_device *md)
return get_capacity(md->disk);
}
+struct request_queue *dm_get_md_queue(struct mapped_device *md)
+{
+ return md->queue;
+}
+
struct dm_stats *dm_get_stats(struct mapped_device *md)
{
return &md->stats;
@@ -760,7 +758,7 @@ static void dec_pending(struct dm_io *io, int error)
static void clone_endio(struct bio *bio, int error)
{
int r = 0;
- struct dm_target_io *tio = bio->bi_private;
+ struct dm_target_io *tio = container_of(bio, struct dm_target_io, clone);
struct dm_io *io = tio->io;
struct mapped_device *md = tio->io->md;
dm_endio_fn endio = tio->ti->type->end_io;
@@ -794,7 +792,8 @@ static void clone_endio(struct bio *bio, int error)
*/
static void end_clone_bio(struct bio *clone, int error)
{
- struct dm_rq_clone_bio_info *info = clone->bi_private;
+ struct dm_rq_clone_bio_info *info =
+ container_of(clone, struct dm_rq_clone_bio_info, clone);
struct dm_rq_target_io *tio = info->tio;
struct bio *bio = info->orig;
unsigned int nr_bytes = info->orig->bi_iter.bi_size;
@@ -1120,7 +1119,6 @@ static void __map_bio(struct dm_target_io *tio)
struct dm_target *ti = tio->ti;
clone->bi_end_io = clone_endio;
- clone->bi_private = tio;
/*
* Map the clone. If r == 0 we don't need to do
@@ -1195,7 +1193,6 @@ 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_bio_nr = target_bio_nr;
return tio;
@@ -1530,7 +1527,6 @@ static int dm_rq_bio_constructor(struct bio *bio, struct bio *bio_orig,
info->orig = bio_orig;
info->tio = tio;
bio->bi_end_io = end_clone_bio;
- bio->bi_private = info;
return 0;
}
@@ -2172,7 +2168,7 @@ static struct dm_table *__unbind(struct mapped_device *md)
return NULL;
dm_table_event_callback(map, NULL, NULL);
- rcu_assign_pointer(md->map, NULL);
+ RCU_INIT_POINTER(md->map, NULL);
dm_sync_table(md);
return map;
@@ -2873,8 +2869,6 @@ static const struct block_device_operations dm_blk_dops = {
.owner = THIS_MODULE
};
-EXPORT_SYMBOL(dm_get_mapinfo);
-
/*
* module hooks
*/