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Commit 72afc71f authored by Alex Elder's avatar Alex Elder
Browse files

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: default avatarAlex Elder <elder@inktank.com>
Reviewed-by: default avatarJosh Durgin <josh.durgin@inktank.com>
parent 86b00e0d

include/linux/ceph/osdmap.h

+1 −0
Original line number Diff line number Diff line
@@ -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

net/ceph/osdmap.c

+16 −0
Original line number Diff line number Diff line
@@ -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;