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authorAlex Elder <elder@inktank.com>2012-10-30 19:40:33 -0500
committerAlex Elder <elder@inktank.com>2012-11-01 07:55:42 -0500
commit72afc71ffca0f444ee0e1ef8c7e34ab209bb48b3 (patch)
treec9849491d6f31db1ef1be5a8f7fe186c108830aa /net/ceph/osdmap.c
parent86b00e0da6be7bbc16412f126c5b548ac5d91d50 (diff)
downloadlinux-72afc71ffca0f444ee0e1ef8c7e34ab209bb48b3.tar.gz
libceph: define ceph_pg_pool_name_by_id()
Define and export function ceph_pg_pool_name_by_id() to supply the name of a pg pool whose id is given. This will be used by the next patch. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'net/ceph/osdmap.c')
-rw-r--r--net/ceph/osdmap.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index f552aa48fd9..de73214b5d2 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -469,6 +469,22 @@ static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, int id)
return NULL;
}
+const char *ceph_pg_pool_name_by_id(struct ceph_osdmap *map, u64 id)
+{
+ struct ceph_pg_pool_info *pi;
+
+ if (id == CEPH_NOPOOL)
+ return NULL;
+
+ if (WARN_ON_ONCE(id > (u64) INT_MAX))
+ return NULL;
+
+ pi = __lookup_pg_pool(&map->pg_pools, (int) id);
+
+ return pi ? pi->name : NULL;
+}
+EXPORT_SYMBOL(ceph_pg_pool_name_by_id);
+
int ceph_pg_poolid_by_name(struct ceph_osdmap *map, const char *name)
{
struct rb_node *rbp;