diff options
| author | Lars Ellenberg | 2013-11-22 12:52:03 +0100 |
|---|---|---|
| committer | Philipp Reisner | 2014-07-10 18:35:12 +0200 |
| commit | 844a6ae7358df3261daec25e0d3a510f3d4152f2 (patch) | |
| tree | acdc6130cc3ed831dc1f5987494a241c73e0b9fa /drivers/block/drbd/drbd_main.c | |
| parent | drbd: gather detailed timing statistics for drbd_requests (diff) | |
| download | kernel-qcow2-linux-844a6ae7358df3261daec25e0d3a510f3d4152f2.tar.gz kernel-qcow2-linux-844a6ae7358df3261daec25e0d3a510f3d4152f2.tar.xz kernel-qcow2-linux-844a6ae7358df3261daec25e0d3a510f3d4152f2.zip | |
drbd: add lists to find oldest pending requests
Adding requests to per-device fifo lists as soon as possible after
allocating them leaves a simple list_first_entry_or_null() to find the
oldest request, regardless what it is still waiting for.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_main.c')
| -rw-r--r-- | drivers/block/drbd/drbd_main.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 0baec7a3fa81..58865969c9f4 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1934,6 +1934,10 @@ void drbd_init_set_defaults(struct drbd_device *device) INIT_LIST_HEAD(&device->resync_work.list); INIT_LIST_HEAD(&device->unplug_work.list); INIT_LIST_HEAD(&device->bm_io_work.w.list); + INIT_LIST_HEAD(&device->pending_master_completion[0]); + INIT_LIST_HEAD(&device->pending_master_completion[1]); + INIT_LIST_HEAD(&device->pending_completion[0]); + INIT_LIST_HEAD(&device->pending_completion[1]); device->resync_work.cb = w_resync_timer; device->unplug_work.cb = w_send_write_hint; @@ -2268,6 +2272,8 @@ static void do_retry(struct work_struct *ws) } } +/* called via drbd_req_put_completion_ref(), + * holds resource->req_lock */ void drbd_restart_request(struct drbd_request *req) { unsigned long flags; @@ -2687,7 +2693,6 @@ static int init_submitter(struct drbd_device *device) return -ENOMEM; INIT_WORK(&device->submit.worker, do_submit); - spin_lock_init(&device->submit.lock); INIT_LIST_HEAD(&device->submit.writes); return 0; } |