From 86b00e0da6be7bbc16412f126c5b548ac5d91d50 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Thu, 25 Oct 2012 23:34:42 -0500 Subject: rbd: get parent spec for version 2 images Add support for getting the the information identifying the parent image for rbd images that have them. The child image holds a reference to its parent image specification structure. Create a new entry "parent" in /sys/bus/rbd/image/N/ to report the identifying information for the parent image, if any. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin --- include/linux/ceph/rados.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/ceph') diff --git a/include/linux/ceph/rados.h b/include/linux/ceph/rados.h index 0a99099801a4..15077db662ed 100644 --- a/include/linux/ceph/rados.h +++ b/include/linux/ceph/rados.h @@ -87,6 +87,8 @@ struct ceph_pg { * * lpgp_num -- as above. */ +#define CEPH_NOPOOL ((__u64) (-1)) /* pool id not defined */ + #define CEPH_PG_TYPE_REP 1 #define CEPH_PG_TYPE_RAID4 2 #define CEPH_PG_POOL_VERSION 2 -- cgit v1.2.3