libceph: follow {read,write}_tier fields on osd request submission
Overwrite ceph_osd_request::r_oloc.pool with read_tier for read ops and
write_tier for write and read+write ops (aka basic tiering support).
{read,write}_tier are part of pg_pool_t since v9. This commit bumps
our pg_pool_t decode compat version from v7 to v9, all new fields
except for {read,write}_tier are ignored.
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 d69d2355..aade4a5 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -519,8 +519,8 @@
pr_warning("got v %d < 5 cv %d of ceph_pg_pool\n", ev, cv);
return -EINVAL;
}
- if (cv > 7) {
- pr_warning("got v %d cv %d > 7 of ceph_pg_pool\n", ev, cv);
+ if (cv > 9) {
+ pr_warning("got v %d cv %d > 9 of ceph_pg_pool\n", ev, cv);
return -EINVAL;
}
len = ceph_decode_32(p);
@@ -548,12 +548,34 @@
*p += len;
}
- /* skip removed snaps */
+ /* skip removed_snaps */
num = ceph_decode_32(p);
*p += num * (8 + 8);
*p += 8; /* skip auid */
pi->flags = ceph_decode_64(p);
+ *p += 4; /* skip crash_replay_interval */
+
+ if (ev >= 7)
+ *p += 1; /* skip min_size */
+
+ if (ev >= 8)
+ *p += 8 + 8; /* skip quota_max_* */
+
+ if (ev >= 9) {
+ /* skip tiers */
+ num = ceph_decode_32(p);
+ *p += num * 8;
+
+ *p += 8; /* skip tier_of */
+ *p += 1; /* skip cache_mode */
+
+ pi->read_tier = ceph_decode_64(p);
+ pi->write_tier = ceph_decode_64(p);
+ } else {
+ pi->read_tier = -1;
+ pi->write_tier = -1;
+ }
/* ignore the rest */