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| author | Mike Snitzer <snitzer@redhat.com> | 2016-02-22 14:14:24 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2016-03-10 17:12:06 -0500 |
| commit | 1d3aa6f683b1c1a813a63339d7309cff58ba4531 (patch) | |
| tree | 045bee4053dffba13a094d7151430cb10b6036be /drivers/md | |
| parent | 115485e83f497fdf9b4bf779038cfe4e141292a9 (diff) | |
| download | linux-1d3aa6f683b1c1a813a63339d7309cff58ba4531.tar.bz2 | |
dm: remove dummy definition of 'struct dm_table'
Change the map pointer in 'struct mapped_device' from 'struct dm_table
__rcu *' to 'void __rcu *' to avoid the need for the dummy definition.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index cc9ab343730d..3cae8547420a 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -121,14 +121,6 @@ struct dm_rq_clone_bio_info { #define DMF_SUSPENDED_INTERNALLY 7 /* - * A dummy definition to make RCU happy. - * struct dm_table should never be dereferenced in this file. - */ -struct dm_table { - int undefined__; -}; - -/* * Work processed by per-device workqueue. */ struct mapped_device { @@ -138,11 +130,11 @@ struct mapped_device { atomic_t open_count; /* - * The current mapping. + * The current mapping (struct dm_table *). * Use dm_get_live_table{_fast} or take suspend_lock for * dereference. */ - struct dm_table __rcu *map; + void __rcu *map; struct list_head table_devices; struct mutex table_devices_lock; @@ -2562,7 +2554,7 @@ static struct dm_table *__bind(struct mapped_device *md, struct dm_table *t, __bind_mempools(md, t); old_map = rcu_dereference_protected(md->map, lockdep_is_held(&md->suspend_lock)); - rcu_assign_pointer(md->map, t); + rcu_assign_pointer(md->map, (void *)t); md->immutable_target_type = dm_table_get_immutable_target_type(t); dm_table_set_restrictions(t, q, limits); |