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| author | Alex Elder <elder@inktank.com> | 2012-10-31 01:40:33 +0100 |
|---|---|---|
| committer | Alex Elder <elder@inktank.com> | 2012-11-01 13:55:42 +0100 |
| commit | 72afc71ffca0f444ee0e1ef8c7e34ab209bb48b3 (patch) | |
| tree | c9849491d6f31db1ef1be5a8f7fe186c108830aa | |
| parent | rbd: get parent spec for version 2 images (diff) | |
| download | linux-72afc71ffca0f444ee0e1ef8c7e34ab209bb48b3.tar.xz linux-72afc71ffca0f444ee0e1ef8c7e34ab209bb48b3.zip | |
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>
| -rw-r--r-- | include/linux/ceph/osdmap.h | 1 | ||||
| -rw-r--r-- | net/ceph/osdmap.c | 16 |
2 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h index e88a620b9f8a..5ea57ba69320 100644 --- a/include/linux/ceph/osdmap.h +++ b/include/linux/ceph/osdmap.h @@ -123,6 +123,7 @@ extern int ceph_calc_pg_acting(struct ceph_osdmap *osdmap, struct ceph_pg pgid, extern int ceph_calc_pg_primary(struct ceph_osdmap *osdmap, struct ceph_pg pgid); +extern const char *ceph_pg_pool_name_by_id(struct ceph_osdmap *map, u64 id); extern int ceph_pg_poolid_by_name(struct ceph_osdmap *map, const char *name); #endif diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index f552aa48fd9e..de73214b5d26 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; |