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Commit e3a84ad4 authored by David Teigland's avatar David Teigland
Browse files

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: default avatarDavid Teigland <teigland@redhat.com>
parent eeda418d

fs/dlm/dlm_internal.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -245,6 +245,7 @@ struct dlm_lkb { 
	struct list_head	lkb_astqueue;	/* need ast to be sent */

	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_ownqueue;	/* list of locks for a process */

	struct list_head	lkb_time_list;

	struct list_head	lkb_time_list;

	ktime_t			lkb_time_bast;	/* for debugging */

	ktime_t			lkb_timestamp;

	ktime_t			lkb_timestamp;

	unsigned long		lkb_timeout_cs;

	unsigned long		lkb_timeout_cs;

fs/dlm/lock.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -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)

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))

	if (is_master_copy(lkb))

		send_bast(r, lkb, rqmode);

		send_bast(r, lkb, rqmode);

	else

	else