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ceph: lookup pool in osdmap by name 

Implement a pool lookup by name.  This will be used by rbd.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Yehuda Sadeh 2010-05-17 12:31:35 -07:00 committed by Sage Weil
parent cd07202cc8
commit 7669a2c95e
2 changed files with 15 additions and 0 deletions
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13
fs/ceph/osdmap.c
View File

@ -417,6 +417,19 @@ static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, int id)
return NULL;
}
int ceph_pg_poolid_by_name(struct ceph_osdmap *map, const char *name)
{
struct rb_node *rbp;
for (rbp = rb_first(&map->pg_pools); rbp; rbp = rb_next(rbp)) {
struct ceph_pg_pool_info *pi =
rb_entry(rbp, struct ceph_pg_pool_info, node);
if (pi->name && strcmp(pi->name, name) == 0)
return pi->id;
}
return -ENOENT;
}
static void __remove_pg_pool(struct rb_root *root, struct ceph_pg_pool_info *pi)
{
rb_erase(&pi->node, root);

2
fs/ceph/osdmap.h
View File

@ -125,4 +125,6 @@ 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 int ceph_pg_poolid_by_name(struct ceph_osdmap *map, const char *name);
#endif