libceph: primary_temp infrastructure
Add primary_temp mappings infrastructure. struct ceph_pg_mapping is
overloaded, primary_temp mappings are stored in an rb-tree, rooted at
ceph_osdmap, in a manner similar to pg_temp mappings.
Dump primary_temp mappings to /sys/kernel/debug/ceph/<client>/osdmap,
one 'primary_temp <pgid> <osd>' per line, e.g:
primary_temp 2.6 4
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h
index 4837e58..db4fb63 100644
--- a/include/linux/ceph/osdmap.h
+++ b/include/linux/ceph/osdmap.h
@@ -66,6 +66,9 @@
int len;
int osds[];
} pg_temp;
+ struct {
+ int osd;
+ } primary_temp;
};
};
@@ -83,6 +86,8 @@
struct ceph_entity_addr *osd_addr;
struct rb_root pg_temp;
+ struct rb_root primary_temp;
+
struct rb_root pg_pools;
u32 pool_max;