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>
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@ -417,6 +417,19 @@ static struct ceph_pg_pool_info *__lookup_pg_pool(struct rb_root *root, int id)
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return NULL;
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}
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int ceph_pg_poolid_by_name(struct ceph_osdmap *map, const char *name)
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{
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struct rb_node *rbp;
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for (rbp = rb_first(&map->pg_pools); rbp; rbp = rb_next(rbp)) {
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struct ceph_pg_pool_info *pi =
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rb_entry(rbp, struct ceph_pg_pool_info, node);
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if (pi->name && strcmp(pi->name, name) == 0)
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return pi->id;
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}
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return -ENOENT;
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}
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static void __remove_pg_pool(struct rb_root *root, struct ceph_pg_pool_info *pi)
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{
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rb_erase(&pi->node, root);
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@ -125,4 +125,6 @@ extern int ceph_calc_pg_acting(struct ceph_osdmap *osdmap, struct ceph_pg pgid,
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extern int ceph_calc_pg_primary(struct ceph_osdmap *osdmap,
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struct ceph_pg pgid);
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extern int ceph_pg_poolid_by_name(struct ceph_osdmap *map, const char *name);
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#endif
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