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libceph: rename ceph_oloc_oid_to_pg()

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Rename ceph_oloc_oid_to_pg() to ceph_object_locator_to_pg().  Emphasise
that returned is raw PG and return -ENOENT instead of -EIO if the pool
doesn't exist.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ilya Dryomov
2016-04-28 16:07:22 +02:00
parent 985c167388
commit d9591f5e28
4 changed files with 23 additions and 23 deletions
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31
net/ceph/osdmap.c
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@@ -1545,30 +1545,31 @@ invalid:
EXPORT_SYMBOL(ceph_calc_file_object_mapping);
/*
* 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.
* Map an object into a PG.
*
* Should only be called with target_oid and target_oloc (as opposed to
* base_oid and base_oloc), since tiering isn't taken into account.
*/
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)
int ceph_object_locator_to_pg(struct ceph_osdmap *osdmap,
struct ceph_object_id *oid,
struct ceph_object_locator *oloc,
struct ceph_pg *raw_pgid)
{
struct ceph_pg_pool_info *pi;
pi = __lookup_pg_pool(&osdmap->pg_pools, oloc->pool);
pi = ceph_pg_pool_by_id(osdmap, oloc->pool);
if (!pi)
return -EIO;
return -ENOENT;
pg_out->pool = oloc->pool;
pg_out->seed = ceph_str_hash(pi->object_hash, oid->name,
oid->name_len);
raw_pgid->pool = oloc->pool;
raw_pgid->seed = ceph_str_hash(pi->object_hash, oid->name,
oid->name_len);
dout("%s %*pE pgid %llu.%x\n", __func__, oid->name_len, oid->name,
pg_out->pool, pg_out->seed);
dout("%s %*pE -> raw_pgid %llu.%x\n", __func__, oid->name_len,
oid->name, raw_pgid->pool, raw_pgid->seed);
return 0;
}
EXPORT_SYMBOL(ceph_oloc_oid_to_pg);
EXPORT_SYMBOL(ceph_object_locator_to_pg);
static int do_crush(struct ceph_osdmap *map, int ruleno, int x,
int *result, int result_max,