libceph: replace ceph_calc_ceph_pg() with ceph_oloc_oid_to_pg()
Switch ceph_calc_ceph_pg() to new oloc and oid abstractions and rename
it to ceph_oloc_oid_to_pg() to make its purpose more clear.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index 8b1a6b4..768dd04 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -1090,25 +1090,30 @@
EXPORT_SYMBOL(ceph_calc_file_object_mapping);
/*
- * calculate an object layout (i.e. pgid) from an oid,
- * file_layout, and osdmap
+ * Calculate mapping of a (oloc, oid) pair to a PG. Should only be
+ * called with target's (oloc, oid), since tiering isn't taken into
+ * account.
*/
-int ceph_calc_ceph_pg(struct ceph_pg *pg, const char *oid,
- struct ceph_osdmap *osdmap, uint64_t pool)
+int ceph_oloc_oid_to_pg(struct ceph_osdmap *osdmap,
+ struct ceph_object_locator *oloc,
+ struct ceph_object_id *oid,
+ struct ceph_pg *pg_out)
{
- struct ceph_pg_pool_info *pool_info;
+ struct ceph_pg_pool_info *pi;
- BUG_ON(!osdmap);
- pool_info = __lookup_pg_pool(&osdmap->pg_pools, pool);
- if (!pool_info)
+ pi = __lookup_pg_pool(&osdmap->pg_pools, oloc->pool);
+ if (!pi)
return -EIO;
- pg->pool = pool;
- pg->seed = ceph_str_hash(pool_info->object_hash, oid, strlen(oid));
- dout("%s '%s' pgid %lld.%x\n", __func__, oid, pg->pool, pg->seed);
+ pg_out->pool = oloc->pool;
+ pg_out->seed = ceph_str_hash(pi->object_hash, oid->name,
+ oid->name_len);
+
+ dout("%s '%.*s' pgid %llu.%x\n", __func__, oid->name_len, oid->name,
+ pg_out->pool, pg_out->seed);
return 0;
}
-EXPORT_SYMBOL(ceph_calc_ceph_pg);
+EXPORT_SYMBOL(ceph_oloc_oid_to_pg);
static int crush_do_rule_ary(const struct crush_map *map, int ruleno, int x,
int *result, int result_max,