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authorMikulas Patocka <mpatocka@redhat.com>2014-03-03 17:43:31 -0500
committerMike Snitzer <snitzer@redhat.com>2014-03-27 16:56:24 -0400
commitd70ab4fb723cf7acfa656cb2ad1e75be7ed94bef (patch)
treef32ef8e5e00e7b3ff0e35b61e5ff13f9738fdf48 /drivers/md
parent473c36dfeecf4e49db928f3284b2fbe981f8c284 (diff)
downloadlinux-d70ab4fb723cf7acfa656cb2ad1e75be7ed94bef.tar.bz2
dm: remove dm_get_mapinfo
Remove dm_get_mapinfo() because no target uses it. Targets can allocate per-bio data using ti->per_bio_data_size, this is much more flexible than union map_info. Leave union map_info only for the request-based multipath target's use. Also delete the unused "unsigned long long ll" field of union map_info. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/dm.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 8c53b09b9a2c..ef5750d21235 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)
@@ -1195,7 +1188,6 @@ 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;
@@ -2873,8 +2865,6 @@ static const struct block_device_operations dm_blk_dops = {
.owner = THIS_MODULE
};
-EXPORT_SYMBOL(dm_get_mapinfo);
-
/*
* module hooks
*/