From 685f9a5d14194fc35db73e5e7370740ccc14b64a Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Mon, 9 Nov 2009 12:05:48 -0800 Subject: ceph: do not confuse stale and dead (unreconnected) caps We were using the cap_gen to track both stale caps (caps that timed out due to temporarily losing touch with the mds) and dead caps that did not reconnect after an MDS failure. Introduce a recon_gen counter to track reconnections to restarted MDSs and kill dead caps based on that instead. Rename gen to cap_gen while we're at it to make it more clear which is which. Signed-off-by: Sage Weil --- fs/ceph/super.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'fs/ceph/super.h') diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 05947b96c524..25793559a2e5 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -169,7 +169,9 @@ struct ceph_cap { int issued; /* latest, from the mds */ int implemented; /* implemented superset of issued (for revocation) */ int mds_wanted; - u32 seq, issue_seq, mseq, gen; + u32 seq, issue_seq, mseq; + u32 cap_gen; /* active/stale cycle */ + u32 recon_gen; /* mds restart reconnect cycle */ unsigned long last_used; struct list_head caps_item; }; -- cgit v1.2.3