From: David Teigland Date: Tue, 9 Dec 2008 20:47:29 +0000 (-0600) Subject: dlm: add time stamp of blocking callback X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=e3a84ad495d1fddb542e0922160f0194a1361950;p=deliverable%2Flinux.git dlm: add time stamp of blocking callback Record the time the latest blocking callback was queued for a lock. This will be used for debugging in combination with lock queue timestamp changes in the previous patch. Signed-off-by: David Teigland --- diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index e69135c83d5d..0c4882951923 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -245,6 +245,7 @@ struct dlm_lkb { struct list_head lkb_astqueue; /* need ast to be sent */ struct list_head lkb_ownqueue; /* list of locks for a process */ struct list_head lkb_time_list; + ktime_t lkb_time_bast; /* for debugging */ ktime_t lkb_timestamp; unsigned long lkb_timeout_cs; diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c index dfc57ae27045..6cfe65bbf4a2 100644 --- a/fs/dlm/lock.c +++ b/fs/dlm/lock.c @@ -318,6 +318,8 @@ static inline void queue_cast_overlap(struct dlm_rsb *r, struct dlm_lkb *lkb) static void queue_bast(struct dlm_rsb *r, struct dlm_lkb *lkb, int rqmode) { + lkb->lkb_time_bast = ktime_get(); + if (is_master_copy(lkb)) send_bast(r, lkb, rqmode); else