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drbd: When proxy's buffer drained off go into regular resync mode

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Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner 2010-10-27 17:32:36 +02:00
parent 73a01a18b9
commit c4752ef128
4 changed files with 22 additions and 2 deletions
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4
drivers/block/drbd/drbd_int.h
View file

@ -973,7 +973,8 @@ struct drbd_conf {
struct drbd_work resync_work,
unplug_work,
go_diskless,
md_sync_work;
md_sync_work,
start_resync_work;
struct timer_list resync_timer;
struct timer_list md_sync_timer;
#ifdef DRBD_DEBUG_MD_SYNC
@ -1546,6 +1547,7 @@ extern int w_prev_work_done(struct drbd_conf *, struct drbd_work *, int);
extern int w_e_reissue(struct drbd_conf *, struct drbd_work *, int);
extern int w_restart_disk_io(struct drbd_conf *, struct drbd_work *, int);
extern int w_send_oos(struct drbd_conf *, struct drbd_work *, int);
extern int w_start_resync(struct drbd_conf *, struct drbd_work *, int);
extern void resync_timer_fn(unsigned long data);

1
drivers/block/drbd/drbd_main.c
View file

@ -2846,6 +2846,7 @@ void drbd_init_set_defaults(struct drbd_conf *mdev)
INIT_LIST_HEAD(&mdev->unplug_work.list);
INIT_LIST_HEAD(&mdev->go_diskless.list);
INIT_LIST_HEAD(&mdev->md_sync_work.list);
INIT_LIST_HEAD(&mdev->start_resync_work.list);
INIT_LIST_HEAD(&mdev->bm_io_work.w.list);
mdev->resync_work.cb = w_resync_inactive;

9
drivers/block/drbd/drbd_receiver.c
View file

@ -3279,6 +3279,7 @@ static int receive_sync_uuid(struct drbd_conf *mdev, enum drbd_packets cmd, unsi
wait_event(mdev->misc_wait,
mdev->state.conn == C_WF_SYNC_UUID ||
mdev->state.conn == C_BEHIND ||
mdev->state.conn < C_CONNECTED ||
mdev->state.disk < D_NEGOTIATING);
@ -4338,6 +4339,14 @@ static int got_BarrierAck(struct drbd_conf *mdev, struct p_header80 *h)
tl_release(mdev, p->barrier, be32_to_cpu(p->set_size));
if (mdev->state.conn == C_AHEAD &&
atomic_read(&mdev->ap_in_flight) == 0 &&
list_empty(&mdev->start_resync_work.list)) {
struct drbd_work *w = &mdev->start_resync_work;
w->cb = w_start_resync;
drbd_queue_work_front(&mdev->data.work, w);
}
return TRUE;
}

10
drivers/block/drbd/drbd_worker.c
View file

@ -742,6 +742,14 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca
return 1;
}
int w_start_resync(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
{
drbd_start_resync(mdev, C_SYNC_SOURCE);
return 1;
}
int w_ov_finished(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
{
kfree(w);
@ -1472,7 +1480,7 @@ void drbd_start_resync(struct drbd_conf *mdev, enum drbd_conns side)
union drbd_state ns;
int r;
if (mdev->state.conn >= C_SYNC_SOURCE) {
if (mdev->state.conn >= C_SYNC_SOURCE && mdev->state.conn < C_AHEAD) {
dev_err(DEV, "Resync already running!\n");
return;
}