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authorYehuda Sadeh <yehuda@hq.newdream.net>2010-05-17 23:31:35 +0400
committerSage Weil <sage@newdream.net>2010-10-21 02:35:36 +0400
commit7669a2c95e502a77f93f27e5449fc93a00d588b6 (patch)
tree4230c625bf5781d1cb3cf6b1e38b2d0ef103234c /fs/ceph
parentcd07202cc8262e1669edff0d97715f3dd9260917 (diff)
downloadlinux-7669a2c95e502a77f93f27e5449fc93a00d588b6.tar.xz
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>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/osdmap.c13
-rw-r--r--fs/ceph/osdmap.h2
2 files changed, 15 insertions, 0 deletions
diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c
index e31f118f1392..3ccd11761cb6 100644
--- a/fs/ceph/osdmap.c
+++ b/fs/ceph/osdmap.c
@@ -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);
diff --git a/fs/ceph/osdmap.h b/fs/ceph/osdmap.h
index 970b547e510d..a592b211be39 100644
--- a/fs/ceph/osdmap.h
+++ b/fs/ceph/osdmap.h
@@ -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