drbd: Create a dedicated struct drbd_device_work
drbd_device_work is a work item that has a reference to a device, while drbd_work is a more generic work item that does not carry a reference to a device. All callbacks get a pointer to a drbd_work instance, those callbacks that expect a drbd_device_work use the container_of macro to get it. Signed-off-by: Andreas Gruenbacher <agruen@linbit.com> Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
This commit is contained in:
Andreas Gruenbacher
Philipp Reisner
Родитель
8682eae9b4
Коммит
84b8c06b65
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@ -95,11 +95,13 @@ struct __packed al_transaction_on_disk {
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struct update_odbm_work {
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struct drbd_work w;
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struct drbd_device *device;
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unsigned int enr;
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};
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struct update_al_work {
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struct drbd_work w;
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struct drbd_device *device;
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struct completion event;
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int err;
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};
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@ -594,7 +596,7 @@ _al_write_transaction(struct drbd_device *device)
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static int w_al_write_transaction(struct drbd_work *w, int unused)
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{
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struct update_al_work *aw = container_of(w, struct update_al_work, w);
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struct drbd_device *device = w->device;
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struct drbd_device *device = aw->device;
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int err;
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err = _al_write_transaction(device);
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@ -613,8 +615,9 @@ static int al_write_transaction(struct drbd_device *device, bool delegate)
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struct update_al_work al_work;
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init_completion(&al_work.event);
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al_work.w.cb = w_al_write_transaction;
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al_work.w.device = device;
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drbd_queue_work_front(&first_peer_device(device)->connection->sender_work, &al_work.w);
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al_work.device = device;
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drbd_queue_work_front(&first_peer_device(device)->connection->sender_work,
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&al_work.w);
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wait_for_completion(&al_work.event);
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return al_work.err;
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} else
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@ -684,7 +687,7 @@ int drbd_initialize_al(struct drbd_device *device, void *buffer)
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static int w_update_odbm(struct drbd_work *w, int unused)
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{
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struct update_odbm_work *udw = container_of(w, struct update_odbm_work, w);
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struct drbd_device *device = w->device;
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struct drbd_device *device = udw->device;
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struct sib_info sib = { .sib_reason = SIB_SYNC_PROGRESS, };
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if (!get_ldev(device)) {
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@ -795,8 +798,9 @@ static void drbd_try_clear_on_disk_bm(struct drbd_device *device, sector_t secto
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if (udw) {
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udw->enr = ext->lce.lc_number;
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udw->w.cb = w_update_odbm;
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udw->w.device = device;
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drbd_queue_work_front(&first_peer_device(device)->connection->sender_work, &udw->w);
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udw->device = device;
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drbd_queue_work_front(&first_peer_device(device)->connection->sender_work,
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&udw->w);
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} else {
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drbd_warn(device, "Could not kmalloc an udw\n");
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}
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@ -281,10 +281,11 @@ static inline enum drbd_thread_state get_t_state(struct drbd_thread *thi)
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struct drbd_work {
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struct list_head list;
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int (*cb)(struct drbd_work *, int cancel);
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union {
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struct drbd_device *device;
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struct drbd_connection *connection;
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};
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};
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struct drbd_device_work {
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struct drbd_work w;
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struct drbd_device *device;
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};
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#include "drbd_interval.h"
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@ -293,6 +294,7 @@ extern int drbd_wait_misc(struct drbd_device *, struct drbd_interval *);
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struct drbd_request {
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struct drbd_work w;
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struct drbd_device *device;
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/* if local IO is not allowed, will be NULL.
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* if local IO _is_ allowed, holds the locally submitted bio clone,
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@ -360,7 +362,7 @@ struct digest_info {
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};
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struct drbd_peer_request {
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struct drbd_work w;
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struct drbd_device_work dw;
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struct drbd_epoch *epoch; /* for writes */
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struct page *pages;
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atomic_t pending_bios;
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@ -686,11 +688,11 @@ struct drbd_device {
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struct gendisk *vdisk;
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unsigned long last_reattach_jif;
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struct drbd_work resync_work,
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unplug_work,
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go_diskless,
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md_sync_work,
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start_resync_work;
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struct drbd_work resync_work;
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struct drbd_work unplug_work;
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struct drbd_work go_diskless;
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struct drbd_work md_sync_work;
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struct drbd_work start_resync_work;
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struct timer_list resync_timer;
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struct timer_list md_sync_timer;
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struct timer_list start_resync_timer;
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@ -1865,7 +1867,8 @@ static inline void put_ldev(struct drbd_device *device)
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if (device->state.disk == D_FAILED) {
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/* all application IO references gone. */
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if (!test_and_set_bit(GO_DISKLESS, &device->flags))
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drbd_queue_work(&first_peer_device(device)->connection->sender_work, &device->go_diskless);
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drbd_queue_work(&first_peer_device(device)->connection->sender_work,
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&device->go_diskless);
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}
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wake_up(&device->misc_wait);
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}
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@ -2092,7 +2095,9 @@ static inline void dec_ap_bio(struct drbd_device *device)
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if (ap_bio == 0 && test_bit(BITMAP_IO, &device->flags)) {
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if (!test_and_set_bit(BITMAP_IO_QUEUED, &device->flags))
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drbd_queue_work(&first_peer_device(device)->connection->sender_work, &device->bm_io_work.w);
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drbd_queue_work(&first_peer_device(device)->
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connection->sender_work,
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&device->bm_io_work.w);
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}
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/* this currently does wake_up for every dec_ap_bio!
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@ -312,7 +312,7 @@ void tl_abort_disk_io(struct drbd_device *device)
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list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) {
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if (!(req->rq_state & RQ_LOCAL_PENDING))
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continue;
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if (req->w.device != device)
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if (req->device != device)
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continue;
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_req_mod(req, ABORT_DISK_IO);
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}
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@ -1917,13 +1917,6 @@ void drbd_init_set_defaults(struct drbd_device *device)
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device->bm_io_work.w.cb = w_bitmap_io;
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device->start_resync_work.cb = w_start_resync;
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device->resync_work.device = device;
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device->unplug_work.device = device;
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device->go_diskless.device = device;
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device->md_sync_work.device = device;
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device->bm_io_work.w.device = device;
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device->start_resync_work.device = device;
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init_timer(&device->resync_timer);
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init_timer(&device->md_sync_timer);
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init_timer(&device->start_resync_timer);
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@ -2222,12 +2215,12 @@ static void do_retry(struct work_struct *ws)
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spin_unlock_irq(&retry->lock);
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list_for_each_entry_safe(req, tmp, &writes, tl_requests) {
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struct drbd_device *device = req->w.device;
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struct drbd_device *device = req->device;
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struct bio *bio = req->master_bio;
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unsigned long start_time = req->start_time;
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bool expected;
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expected =
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expected =
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expect(atomic_read(&req->completion_ref) == 0) &&
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expect(req->rq_state & RQ_POSTPONED) &&
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expect((req->rq_state & RQ_LOCAL_PENDING) == 0 ||
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@ -2273,7 +2266,7 @@ void drbd_restart_request(struct drbd_request *req)
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/* Drop the extra reference that would otherwise
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* have been dropped by complete_master_bio.
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* do_retry() needs to grab a new one. */
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dec_ap_bio(req->w.device);
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dec_ap_bio(req->device);
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queue_work(retry.wq, &retry.worker);
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}
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@ -3468,8 +3461,9 @@ int drbd_bmio_clear_n_write(struct drbd_device *device)
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static int w_bitmap_io(struct drbd_work *w, int unused)
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{
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struct bm_io_work *work = container_of(w, struct bm_io_work, w);
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struct drbd_device *device = w->device;
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struct drbd_device *device =
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container_of(w, struct drbd_device, bm_io_work.w);
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struct bm_io_work *work = &device->bm_io_work;
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int rv = -EIO;
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D_ASSERT(device, atomic_read(&device->ap_bio_cnt) == 0);
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@ -3509,7 +3503,8 @@ void drbd_ldev_destroy(struct drbd_device *device)
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static int w_go_diskless(struct drbd_work *w, int unused)
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{
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struct drbd_device *device = w->device;
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struct drbd_device *device =
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container_of(w, struct drbd_device, go_diskless);
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D_ASSERT(device, device->state.disk == D_FAILED);
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/* we cannot assert local_cnt == 0 here, as get_ldev_if_state will
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@ -3583,7 +3578,8 @@ void drbd_queue_bitmap_io(struct drbd_device *device,
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set_bit(BITMAP_IO, &device->flags);
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if (atomic_read(&device->ap_bio_cnt) == 0) {
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if (!test_and_set_bit(BITMAP_IO_QUEUED, &device->flags))
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drbd_queue_work(&first_peer_device(device)->connection->sender_work, &device->bm_io_work.w);
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drbd_queue_work(&first_peer_device(device)->connection->sender_work,
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&device->bm_io_work.w);
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}
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spin_unlock_irq(&device->resource->req_lock);
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}
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@ -3643,12 +3639,14 @@ static void md_sync_timer_fn(unsigned long data)
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/* must not double-queue! */
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if (list_empty(&device->md_sync_work.list))
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drbd_queue_work_front(&first_peer_device(device)->connection->sender_work, &device->md_sync_work);
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drbd_queue_work_front(&first_peer_device(device)->connection->sender_work,
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&device->md_sync_work);
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}
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static int w_md_sync(struct drbd_work *w, int unused)
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{
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struct drbd_device *device = w->device;
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struct drbd_device *device =
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container_of(w, struct drbd_device, md_sync_work);
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drbd_warn(device, "md_sync_timer expired! Worker calls drbd_md_sync().\n");
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#ifdef DEBUG
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@ -209,7 +209,7 @@ static void reclaim_finished_net_peer_reqs(struct drbd_device *device,
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stop to examine the list... */
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list_for_each_safe(le, tle, &device->net_ee) {
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peer_req = list_entry(le, struct drbd_peer_request, w.list);
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peer_req = list_entry(le, struct drbd_peer_request, dw.w.list);
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if (drbd_peer_req_has_active_page(peer_req))
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break;
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list_move(le, to_be_freed);
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@ -225,7 +225,7 @@ static void drbd_kick_lo_and_reclaim_net(struct drbd_device *device)
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reclaim_finished_net_peer_reqs(device, &reclaimed);
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spin_unlock_irq(&device->resource->req_lock);
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list_for_each_entry_safe(peer_req, t, &reclaimed, w.list)
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list_for_each_entry_safe(peer_req, t, &reclaimed, dw.w.list)
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drbd_free_net_peer_req(device, peer_req);
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}
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@ -363,7 +363,7 @@ drbd_alloc_peer_req(struct drbd_peer_device *peer_device, u64 id, sector_t secto
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peer_req->i.waiting = false;
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peer_req->epoch = NULL;
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peer_req->w.device = device;
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peer_req->dw.device = device;
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peer_req->pages = page;
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atomic_set(&peer_req->pending_bios, 0);
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peer_req->flags = 0;
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@ -402,7 +402,7 @@ int drbd_free_peer_reqs(struct drbd_device *device, struct list_head *list)
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list_splice_init(list, &work_list);
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spin_unlock_irq(&device->resource->req_lock);
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list_for_each_entry_safe(peer_req, t, &work_list, w.list) {
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list_for_each_entry_safe(peer_req, t, &work_list, dw.w.list) {
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__drbd_free_peer_req(device, peer_req, is_net);
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count++;
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}
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@ -424,18 +424,18 @@ static int drbd_finish_peer_reqs(struct drbd_device *device)
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list_splice_init(&device->done_ee, &work_list);
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spin_unlock_irq(&device->resource->req_lock);
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list_for_each_entry_safe(peer_req, t, &reclaimed, w.list)
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list_for_each_entry_safe(peer_req, t, &reclaimed, dw.w.list)
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drbd_free_net_peer_req(device, peer_req);
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/* possible callbacks here:
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* e_end_block, and e_end_resync_block, e_send_superseded.
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* all ignore the last argument.
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*/
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list_for_each_entry_safe(peer_req, t, &work_list, w.list) {
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list_for_each_entry_safe(peer_req, t, &work_list, dw.w.list) {
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int err2;
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/* list_del not necessary, next/prev members not touched */
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err2 = peer_req->w.cb(&peer_req->w, !!err);
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err2 = peer_req->dw.w.cb(&peer_req->dw.w, !!err);
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if (!err)
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err = err2;
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drbd_free_peer_req(device, peer_req);
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@ -1664,9 +1664,10 @@ static int recv_dless_read(struct drbd_peer_device *peer_device, struct drbd_req
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*/
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static int e_end_resync_block(struct drbd_work *w, int unused)
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{
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struct drbd_device_work *dw = device_work(w);
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struct drbd_peer_request *peer_req =
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container_of(w, struct drbd_peer_request, w);
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struct drbd_device *device = w->device;
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container_of(dw, struct drbd_peer_request, dw);
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struct drbd_device *device = dw->device;
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sector_t sector = peer_req->i.sector;
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int err;
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@ -1702,10 +1703,10 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto
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/* corresponding dec_unacked() in e_end_resync_block()
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* respective _drbd_clear_done_ee */
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peer_req->w.cb = e_end_resync_block;
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peer_req->dw.w.cb = e_end_resync_block;
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spin_lock_irq(&device->resource->req_lock);
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list_add(&peer_req->w.list, &device->sync_ee);
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list_add(&peer_req->dw.w.list, &device->sync_ee);
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spin_unlock_irq(&device->resource->req_lock);
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atomic_add(data_size >> 9, &device->rs_sect_ev);
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@ -1715,7 +1716,7 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto
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/* don't care for the reason here */
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drbd_err(device, "submit failed, triggering re-connect\n");
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spin_lock_irq(&device->resource->req_lock);
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list_del(&peer_req->w.list);
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list_del(&peer_req->dw.w.list);
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spin_unlock_irq(&device->resource->req_lock);
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drbd_free_peer_req(device, peer_req);
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@ -1835,9 +1836,10 @@ static void restart_conflicting_writes(struct drbd_device *device,
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*/
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static int e_end_block(struct drbd_work *w, int cancel)
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{
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struct drbd_device_work *dw = device_work(w);
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struct drbd_peer_request *peer_req =
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container_of(w, struct drbd_peer_request, w);
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struct drbd_device *device = w->device;
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container_of(dw, struct drbd_peer_request, dw);
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struct drbd_device *device = dw->device;
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sector_t sector = peer_req->i.sector;
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int err = 0, pcmd;
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@ -1874,11 +1876,11 @@ static int e_end_block(struct drbd_work *w, int cancel)
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return err;
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}
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static int e_send_ack(struct drbd_work *w, enum drbd_packet ack)
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static int e_send_ack(struct drbd_device_work *dw, enum drbd_packet ack)
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{
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struct drbd_device *device = w->device;
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struct drbd_device *device = dw->device;
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struct drbd_peer_request *peer_req =
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container_of(w, struct drbd_peer_request, w);
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container_of(dw, struct drbd_peer_request, dw);
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int err;
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err = drbd_send_ack(first_peer_device(device), ack, peer_req);
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@ -1889,14 +1891,15 @@ static int e_send_ack(struct drbd_work *w, enum drbd_packet ack)
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static int e_send_superseded(struct drbd_work *w, int unused)
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{
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return e_send_ack(w, P_SUPERSEDED);
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return e_send_ack(device_work(w), P_SUPERSEDED);
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}
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static int e_send_retry_write(struct drbd_work *w, int unused)
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{
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struct drbd_connection *connection = first_peer_device(w->device)->connection;
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struct drbd_device_work *dw = device_work(w);
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struct drbd_connection *connection = first_peer_device(dw->device)->connection;
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return e_send_ack(w, connection->agreed_pro_version >= 100 ?
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return e_send_ack(dw, connection->agreed_pro_version >= 100 ?
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P_RETRY_WRITE : P_SUPERSEDED);
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}
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@ -1943,7 +1946,7 @@ static bool overlapping_resync_write(struct drbd_device *device, struct drbd_pee
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bool rv = 0;
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spin_lock_irq(&device->resource->req_lock);
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list_for_each_entry(rs_req, &device->sync_ee, w.list) {
|
||||
list_for_each_entry(rs_req, &device->sync_ee, dw.w.list) {
|
||||
if (overlaps(peer_req->i.sector, peer_req->i.size,
|
||||
rs_req->i.sector, rs_req->i.size)) {
|
||||
rv = 1;
|
||||
|
|
@ -2114,9 +2117,9 @@ static int handle_write_conflicts(struct drbd_device *device,
|
|||
superseded ? "local" : "remote");
|
||||
|
||||
inc_unacked(device);
|
||||
peer_req->w.cb = superseded ? e_send_superseded :
|
||||
peer_req->dw.w.cb = superseded ? e_send_superseded :
|
||||
e_send_retry_write;
|
||||
list_add_tail(&peer_req->w.list, &device->done_ee);
|
||||
list_add_tail(&peer_req->dw.w.list, &device->done_ee);
|
||||
wake_asender(first_peer_device(device)->connection);
|
||||
|
||||
err = -ENOENT;
|
||||
|
|
@ -2212,7 +2215,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
|
|||
return -EIO;
|
||||
}
|
||||
|
||||
peer_req->w.cb = e_end_block;
|
||||
peer_req->dw.w.cb = e_end_block;
|
||||
|
||||
dp_flags = be32_to_cpu(p->dp_flags);
|
||||
rw |= wire_flags_to_bio(device, dp_flags);
|
||||
|
|
@ -2252,7 +2255,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
|
|||
update_peer_seq(peer_device, peer_seq);
|
||||
spin_lock_irq(&device->resource->req_lock);
|
||||
}
|
||||
list_add(&peer_req->w.list, &device->active_ee);
|
||||
list_add(&peer_req->dw.w.list, &device->active_ee);
|
||||
spin_unlock_irq(&device->resource->req_lock);
|
||||
|
||||
if (device->state.conn == C_SYNC_TARGET)
|
||||
|
|
@ -2299,7 +2302,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
|
|||
/* don't care for the reason here */
|
||||
drbd_err(device, "submit failed, triggering re-connect\n");
|
||||
spin_lock_irq(&device->resource->req_lock);
|
||||
list_del(&peer_req->w.list);
|
||||
list_del(&peer_req->dw.w.list);
|
||||
drbd_remove_epoch_entry_interval(device, peer_req);
|
||||
spin_unlock_irq(&device->resource->req_lock);
|
||||
if (peer_req->flags & EE_CALL_AL_COMPLETE_IO)
|
||||
|
|
@ -2454,13 +2457,13 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
|
|||
|
||||
switch (pi->cmd) {
|
||||
case P_DATA_REQUEST:
|
||||
peer_req->w.cb = w_e_end_data_req;
|
||||
peer_req->dw.w.cb = w_e_end_data_req;
|
||||
fault_type = DRBD_FAULT_DT_RD;
|
||||
/* application IO, don't drbd_rs_begin_io */
|
||||
goto submit;
|
||||
|
||||
case P_RS_DATA_REQUEST:
|
||||
peer_req->w.cb = w_e_end_rsdata_req;
|
||||
peer_req->dw.w.cb = w_e_end_rsdata_req;
|
||||
fault_type = DRBD_FAULT_RS_RD;
|
||||
/* used in the sector offset progress display */
|
||||
device->bm_resync_fo = BM_SECT_TO_BIT(sector);
|
||||
|
|
@ -2484,13 +2487,13 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
|
|||
|
||||
if (pi->cmd == P_CSUM_RS_REQUEST) {
|
||||
D_ASSERT(device, peer_device->connection->agreed_pro_version >= 89);
|
||||
peer_req->w.cb = w_e_end_csum_rs_req;
|
||||
peer_req->dw.w.cb = w_e_end_csum_rs_req;
|
||||
/* used in the sector offset progress display */
|
||||
device->bm_resync_fo = BM_SECT_TO_BIT(sector);
|
||||
} else if (pi->cmd == P_OV_REPLY) {
|
||||
/* track progress, we may need to throttle */
|
||||
atomic_add(size >> 9, &device->rs_sect_in);
|
||||
peer_req->w.cb = w_e_end_ov_reply;
|
||||
peer_req->dw.w.cb = w_e_end_ov_reply;
|
||||
dec_rs_pending(device);
|
||||
/* drbd_rs_begin_io done when we sent this request,
|
||||
* but accounting still needs to be done. */
|
||||
|
|
@ -2514,7 +2517,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
|
|||
drbd_info(device, "Online Verify start sector: %llu\n",
|
||||
(unsigned long long)sector);
|
||||
}
|
||||
peer_req->w.cb = w_e_end_ov_req;
|
||||
peer_req->dw.w.cb = w_e_end_ov_req;
|
||||
fault_type = DRBD_FAULT_RS_RD;
|
||||
break;
|
||||
|
||||
|
|
@ -2555,7 +2558,7 @@ submit_for_resync:
|
|||
submit:
|
||||
inc_unacked(device);
|
||||
spin_lock_irq(&device->resource->req_lock);
|
||||
list_add_tail(&peer_req->w.list, &device->read_ee);
|
||||
list_add_tail(&peer_req->dw.w.list, &device->read_ee);
|
||||
spin_unlock_irq(&device->resource->req_lock);
|
||||
|
||||
if (drbd_submit_peer_request(device, peer_req, READ, fault_type) == 0)
|
||||
|
|
@ -2564,7 +2567,7 @@ submit:
|
|||
/* don't care for the reason here */
|
||||
drbd_err(device, "submit failed, triggering re-connect\n");
|
||||
spin_lock_irq(&device->resource->req_lock);
|
||||
list_del(&peer_req->w.list);
|
||||
list_del(&peer_req->dw.w.list);
|
||||
spin_unlock_irq(&device->resource->req_lock);
|
||||
/* no drbd_rs_complete_io(), we are dropping the connection anyways */
|
||||
|
||||
|
|
@ -4495,7 +4498,6 @@ void conn_flush_workqueue(struct drbd_connection *connection)
|
|||
struct drbd_wq_barrier barr;
|
||||
|
||||
barr.w.cb = w_complete;
|
||||
barr.w.connection = connection;
|
||||
init_completion(&barr.done);
|
||||
drbd_queue_work(&connection->sender_work, &barr.w);
|
||||
wait_for_completion(&barr.done);
|
||||
|
|
@ -5218,7 +5220,7 @@ static int got_OVResult(struct drbd_connection *connection, struct packet_info *
|
|||
struct drbd_peer_device *peer_device;
|
||||
struct drbd_device *device;
|
||||
struct p_block_ack *p = pi->data;
|
||||
struct drbd_work *w;
|
||||
struct drbd_device_work *dw;
|
||||
sector_t sector;
|
||||
int size;
|
||||
|
||||
|
|
@ -5250,13 +5252,13 @@ static int got_OVResult(struct drbd_connection *connection, struct packet_info *
|
|||
drbd_advance_rs_marks(device, device->ov_left);
|
||||
|
||||
if (device->ov_left == 0) {
|
||||
w = kmalloc(sizeof(*w), GFP_NOIO);
|
||||
if (w) {
|
||||
w->cb = w_ov_finished;
|
||||
w->device = device;
|
||||
drbd_queue_work(&peer_device->connection->sender_work, w);
|
||||
dw = kmalloc(sizeof(*dw), GFP_NOIO);
|
||||
if (dw) {
|
||||
dw->w.cb = w_ov_finished;
|
||||
dw->device = device;
|
||||
drbd_queue_work(&peer_device->connection->sender_work, &dw->w);
|
||||
} else {
|
||||
drbd_err(device, "kmalloc(w) failed.");
|
||||
drbd_err(device, "kmalloc(dw) failed.");
|
||||
ov_out_of_sync_print(device);
|
||||
drbd_resync_finished(device);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -72,7 +72,7 @@ static struct drbd_request *drbd_req_new(struct drbd_device *device,
|
|||
|
||||
drbd_req_make_private_bio(req, bio_src);
|
||||
req->rq_state = bio_data_dir(bio_src) == WRITE ? RQ_WRITE : 0;
|
||||
req->w.device = device;
|
||||
req->device = device;
|
||||
req->master_bio = bio_src;
|
||||
req->epoch = 0;
|
||||
|
||||
|
|
@ -95,7 +95,7 @@ static struct drbd_request *drbd_req_new(struct drbd_device *device,
|
|||
void drbd_req_destroy(struct kref *kref)
|
||||
{
|
||||
struct drbd_request *req = container_of(kref, struct drbd_request, kref);
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
const unsigned s = req->rq_state;
|
||||
|
||||
if ((req->master_bio && !(s & RQ_POSTPONED)) ||
|
||||
|
|
@ -191,7 +191,7 @@ void complete_master_bio(struct drbd_device *device,
|
|||
static void drbd_remove_request_interval(struct rb_root *root,
|
||||
struct drbd_request *req)
|
||||
{
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct drbd_interval *i = &req->i;
|
||||
|
||||
drbd_remove_interval(root, i);
|
||||
|
|
@ -211,7 +211,7 @@ static
|
|||
void drbd_req_complete(struct drbd_request *req, struct bio_and_error *m)
|
||||
{
|
||||
const unsigned s = req->rq_state;
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
int rw;
|
||||
int error, ok;
|
||||
|
||||
|
|
@ -306,7 +306,7 @@ void drbd_req_complete(struct drbd_request *req, struct bio_and_error *m)
|
|||
|
||||
static int drbd_req_put_completion_ref(struct drbd_request *req, struct bio_and_error *m, int put)
|
||||
{
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
D_ASSERT(device, m || (req->rq_state & RQ_POSTPONED));
|
||||
|
||||
if (!atomic_sub_and_test(put, &req->completion_ref))
|
||||
|
|
@ -329,7 +329,7 @@ static int drbd_req_put_completion_ref(struct drbd_request *req, struct bio_and_
|
|||
static void mod_rq_state(struct drbd_request *req, struct bio_and_error *m,
|
||||
int clear, int set)
|
||||
{
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
unsigned s = req->rq_state;
|
||||
int c_put = 0;
|
||||
int k_put = 0;
|
||||
|
|
@ -454,7 +454,7 @@ static void drbd_report_io_error(struct drbd_device *device, struct drbd_request
|
|||
int __req_mod(struct drbd_request *req, enum drbd_req_event what,
|
||||
struct bio_and_error *m)
|
||||
{
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct net_conf *nc;
|
||||
int p, rv = 0;
|
||||
|
||||
|
|
@ -542,7 +542,8 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
|
|||
D_ASSERT(device, (req->rq_state & RQ_LOCAL_MASK) == 0);
|
||||
mod_rq_state(req, m, 0, RQ_NET_QUEUED);
|
||||
req->w.cb = w_send_read_req;
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, &req->w);
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&req->w);
|
||||
break;
|
||||
|
||||
case QUEUE_FOR_NET_WRITE:
|
||||
|
|
@ -577,7 +578,8 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
|
|||
D_ASSERT(device, req->rq_state & RQ_NET_PENDING);
|
||||
mod_rq_state(req, m, 0, RQ_NET_QUEUED|RQ_EXP_BARR_ACK);
|
||||
req->w.cb = w_send_dblock;
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, &req->w);
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&req->w);
|
||||
|
||||
/* close the epoch, in case it outgrew the limit */
|
||||
rcu_read_lock();
|
||||
|
|
@ -592,7 +594,8 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
|
|||
case QUEUE_FOR_SEND_OOS:
|
||||
mod_rq_state(req, m, 0, RQ_NET_QUEUED);
|
||||
req->w.cb = w_send_out_of_sync;
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, &req->w);
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&req->w);
|
||||
break;
|
||||
|
||||
case READ_RETRY_REMOTE_CANCELED:
|
||||
|
|
@ -704,7 +707,8 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
|
|||
|
||||
get_ldev(device); /* always succeeds in this call path */
|
||||
req->w.cb = w_restart_disk_io;
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, &req->w);
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&req->w);
|
||||
break;
|
||||
|
||||
case RESEND:
|
||||
|
|
@ -720,12 +724,13 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
|
|||
Throwing them out of the TL here by pretending we got a BARRIER_ACK.
|
||||
During connection handshake, we ensure that the peer was not rebooted. */
|
||||
if (!(req->rq_state & RQ_NET_OK)) {
|
||||
/* FIXME could this possibly be a req->w.cb == w_send_out_of_sync?
|
||||
/* FIXME could this possibly be a req->dw.cb == w_send_out_of_sync?
|
||||
* in that case we must not set RQ_NET_PENDING. */
|
||||
|
||||
mod_rq_state(req, m, RQ_COMPLETION_SUSP, RQ_NET_QUEUED|RQ_NET_PENDING);
|
||||
if (req->w.cb) {
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, &req->w);
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&req->w);
|
||||
rv = req->rq_state & RQ_WRITE ? MR_WRITE : MR_READ;
|
||||
} /* else: FIXME can this happen? */
|
||||
break;
|
||||
|
|
@ -835,7 +840,7 @@ static bool remote_due_to_read_balancing(struct drbd_device *device, sector_t se
|
|||
static void complete_conflicting_writes(struct drbd_request *req)
|
||||
{
|
||||
DEFINE_WAIT(wait);
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct drbd_interval *i;
|
||||
sector_t sector = req->i.sector;
|
||||
int size = req->i.size;
|
||||
|
|
@ -915,7 +920,7 @@ static void maybe_pull_ahead(struct drbd_device *device)
|
|||
*/
|
||||
static bool do_remote_read(struct drbd_request *req)
|
||||
{
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
enum drbd_read_balancing rbm;
|
||||
|
||||
if (req->private_bio) {
|
||||
|
|
@ -960,7 +965,7 @@ static bool do_remote_read(struct drbd_request *req)
|
|||
* which does NOT include those that we are L_AHEAD for. */
|
||||
static int drbd_process_write_request(struct drbd_request *req)
|
||||
{
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
int remote, send_oos;
|
||||
|
||||
remote = drbd_should_do_remote(device->state);
|
||||
|
|
@ -997,7 +1002,7 @@ static int drbd_process_write_request(struct drbd_request *req)
|
|||
static void
|
||||
drbd_submit_req_private_bio(struct drbd_request *req)
|
||||
{
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct bio *bio = req->private_bio;
|
||||
const int rw = bio_rw(bio);
|
||||
|
||||
|
|
@ -1390,7 +1395,7 @@ void request_timer_fn(unsigned long data)
|
|||
drbd_warn(device, "Remote failed to finish a request within ko-count * timeout\n");
|
||||
_drbd_set_state(_NS(device, conn, C_TIMEOUT), CS_VERBOSE | CS_HARD, NULL);
|
||||
}
|
||||
if (dt && req->rq_state & RQ_LOCAL_PENDING && req->w.device == device &&
|
||||
if (dt && req->rq_state & RQ_LOCAL_PENDING && req->device == device &&
|
||||
time_after(now, req->start_time + dt) &&
|
||||
!time_in_range(now, device->last_reattach_jif, device->last_reattach_jif + dt)) {
|
||||
drbd_warn(device, "Local backing device failed to meet the disk-timeout\n");
|
||||
|
|
|
|||
|
|
@ -294,7 +294,7 @@ extern void drbd_restart_request(struct drbd_request *req);
|
|||
* outside the spinlock, e.g. when walking some list on cleanup. */
|
||||
static inline int _req_mod(struct drbd_request *req, enum drbd_req_event what)
|
||||
{
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct bio_and_error m;
|
||||
int rv;
|
||||
|
||||
|
|
@ -314,7 +314,7 @@ static inline int req_mod(struct drbd_request *req,
|
|||
enum drbd_req_event what)
|
||||
{
|
||||
unsigned long flags;
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct bio_and_error m;
|
||||
int rv;
|
||||
|
||||
|
|
|
|||
|
|
@ -32,6 +32,7 @@
|
|||
|
||||
struct after_state_chg_work {
|
||||
struct drbd_work w;
|
||||
struct drbd_device *device;
|
||||
union drbd_state os;
|
||||
union drbd_state ns;
|
||||
enum chg_state_flags flags;
|
||||
|
|
@ -1145,9 +1146,10 @@ __drbd_set_state(struct drbd_device *device, union drbd_state ns,
|
|||
ascw->ns = ns;
|
||||
ascw->flags = flags;
|
||||
ascw->w.cb = w_after_state_ch;
|
||||
ascw->w.device = device;
|
||||
ascw->device = device;
|
||||
ascw->done = done;
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, &ascw->w);
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&ascw->w);
|
||||
} else {
|
||||
drbd_err(device, "Could not kmalloc an ascw\n");
|
||||
}
|
||||
|
|
@ -1159,7 +1161,7 @@ static int w_after_state_ch(struct drbd_work *w, int unused)
|
|||
{
|
||||
struct after_state_chg_work *ascw =
|
||||
container_of(w, struct after_state_chg_work, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device *device = ascw->device;
|
||||
|
||||
after_state_ch(device, ascw->os, ascw->ns, ascw->flags);
|
||||
if (ascw->flags & CS_WAIT_COMPLETE)
|
||||
|
|
@ -1528,18 +1530,19 @@ static void after_state_ch(struct drbd_device *device, union drbd_state os,
|
|||
}
|
||||
|
||||
struct after_conn_state_chg_work {
|
||||
struct drbd_work w;
|
||||
struct drbd_device_work dw;
|
||||
enum drbd_conns oc;
|
||||
union drbd_state ns_min;
|
||||
union drbd_state ns_max; /* new, max state, over all devices */
|
||||
enum chg_state_flags flags;
|
||||
struct drbd_connection *connection;
|
||||
};
|
||||
|
||||
static int w_after_conn_state_ch(struct drbd_work *w, int unused)
|
||||
{
|
||||
struct after_conn_state_chg_work *acscw =
|
||||
container_of(w, struct after_conn_state_chg_work, w);
|
||||
struct drbd_connection *connection = w->connection;
|
||||
container_of(w, struct after_conn_state_chg_work, dw.w);
|
||||
struct drbd_connection *connection = acscw->connection;
|
||||
enum drbd_conns oc = acscw->oc;
|
||||
union drbd_state ns_max = acscw->ns_max;
|
||||
struct drbd_peer_device *peer_device;
|
||||
|
|
@ -1840,10 +1843,10 @@ _conn_request_state(struct drbd_connection *connection, union drbd_state mask, u
|
|||
acscw->ns_min = ns_min;
|
||||
acscw->ns_max = ns_max;
|
||||
acscw->flags = flags;
|
||||
acscw->w.cb = w_after_conn_state_ch;
|
||||
acscw->dw.w.cb = w_after_conn_state_ch;
|
||||
kref_get(&connection->kref);
|
||||
acscw->w.connection = connection;
|
||||
drbd_queue_work(&connection->sender_work, &acscw->w);
|
||||
acscw->connection = connection;
|
||||
drbd_queue_work(&connection->sender_work, &acscw->dw.w);
|
||||
} else {
|
||||
drbd_err(connection, "Could not kmalloc an acscw\n");
|
||||
}
|
||||
|
|
|
|||
|
|
@ -21,7 +21,7 @@
|
|||
along with drbd; see the file COPYING. If not, write to
|
||||
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
*/
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/drbd.h>
|
||||
|
|
@ -39,7 +39,7 @@
|
|||
#include "drbd_protocol.h"
|
||||
#include "drbd_req.h"
|
||||
|
||||
static int w_make_ov_request(struct drbd_work *w, int cancel);
|
||||
static int w_make_ov_request(struct drbd_work *, int);
|
||||
|
||||
|
||||
/* endio handlers:
|
||||
|
|
@ -100,18 +100,19 @@ void drbd_md_io_complete(struct bio *bio, int error)
|
|||
static void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req) __releases(local)
|
||||
{
|
||||
unsigned long flags = 0;
|
||||
struct drbd_device *device = peer_req->w.device;
|
||||
struct drbd_device *device = peer_req->dw.device;
|
||||
|
||||
spin_lock_irqsave(&device->resource->req_lock, flags);
|
||||
device->read_cnt += peer_req->i.size >> 9;
|
||||
list_del(&peer_req->w.list);
|
||||
list_del(&peer_req->dw.w.list);
|
||||
if (list_empty(&device->read_ee))
|
||||
wake_up(&device->ee_wait);
|
||||
if (test_bit(__EE_WAS_ERROR, &peer_req->flags))
|
||||
__drbd_chk_io_error(device, DRBD_READ_ERROR);
|
||||
spin_unlock_irqrestore(&device->resource->req_lock, flags);
|
||||
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, &peer_req->w);
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&peer_req->dw.w);
|
||||
put_ldev(device);
|
||||
}
|
||||
|
||||
|
|
@ -120,7 +121,7 @@ static void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req) __rele
|
|||
static void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __releases(local)
|
||||
{
|
||||
unsigned long flags = 0;
|
||||
struct drbd_device *device = peer_req->w.device;
|
||||
struct drbd_device *device = peer_req->dw.device;
|
||||
struct drbd_interval i;
|
||||
int do_wake;
|
||||
u64 block_id;
|
||||
|
|
@ -136,13 +137,13 @@ static void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __rel
|
|||
|
||||
spin_lock_irqsave(&device->resource->req_lock, flags);
|
||||
device->writ_cnt += peer_req->i.size >> 9;
|
||||
list_move_tail(&peer_req->w.list, &device->done_ee);
|
||||
list_move_tail(&peer_req->dw.w.list, &device->done_ee);
|
||||
|
||||
/*
|
||||
* Do not remove from the write_requests tree here: we did not send the
|
||||
* Ack yet and did not wake possibly waiting conflicting requests.
|
||||
* Removed from the tree from "drbd_process_done_ee" within the
|
||||
* appropriate w.cb (e_end_block/e_end_resync_block) or from
|
||||
* appropriate dw.cb (e_end_block/e_end_resync_block) or from
|
||||
* _drbd_clear_done_ee.
|
||||
*/
|
||||
|
||||
|
|
@ -171,7 +172,7 @@ static void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __rel
|
|||
void drbd_peer_request_endio(struct bio *bio, int error)
|
||||
{
|
||||
struct drbd_peer_request *peer_req = bio->bi_private;
|
||||
struct drbd_device *device = peer_req->w.device;
|
||||
struct drbd_device *device = peer_req->dw.device;
|
||||
int uptodate = bio_flagged(bio, BIO_UPTODATE);
|
||||
int is_write = bio_data_dir(bio) == WRITE;
|
||||
|
||||
|
|
@ -208,7 +209,7 @@ void drbd_request_endio(struct bio *bio, int error)
|
|||
{
|
||||
unsigned long flags;
|
||||
struct drbd_request *req = bio->bi_private;
|
||||
struct drbd_device *device = req->w.device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct bio_and_error m;
|
||||
enum drbd_req_event what;
|
||||
int uptodate = bio_flagged(bio, BIO_UPTODATE);
|
||||
|
|
@ -332,8 +333,9 @@ void drbd_csum_bio(struct crypto_hash *tfm, struct bio *bio, void *digest)
|
|||
/* MAYBE merge common code with w_e_end_ov_req */
|
||||
static int w_e_send_csum(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device_work *dw = device_work(w);
|
||||
struct drbd_peer_request *peer_req = container_of(dw, struct drbd_peer_request, dw);
|
||||
struct drbd_device *device = dw->device;
|
||||
int digest_size;
|
||||
void *digest;
|
||||
int err = 0;
|
||||
|
|
@ -396,9 +398,9 @@ static int read_for_csum(struct drbd_peer_device *peer_device, sector_t sector,
|
|||
if (!peer_req)
|
||||
goto defer;
|
||||
|
||||
peer_req->w.cb = w_e_send_csum;
|
||||
peer_req->dw.w.cb = w_e_send_csum;
|
||||
spin_lock_irq(&device->resource->req_lock);
|
||||
list_add(&peer_req->w.list, &device->read_ee);
|
||||
list_add(&peer_req->dw.w.list, &device->read_ee);
|
||||
spin_unlock_irq(&device->resource->req_lock);
|
||||
|
||||
atomic_add(size >> 9, &device->rs_sect_ev);
|
||||
|
|
@ -410,7 +412,7 @@ static int read_for_csum(struct drbd_peer_device *peer_device, sector_t sector,
|
|||
* retry may or may not help.
|
||||
* If it does not, you may need to force disconnect. */
|
||||
spin_lock_irq(&device->resource->req_lock);
|
||||
list_del(&peer_req->w.list);
|
||||
list_del(&peer_req->dw.w.list);
|
||||
spin_unlock_irq(&device->resource->req_lock);
|
||||
|
||||
drbd_free_peer_req(device, peer_req);
|
||||
|
|
@ -421,7 +423,9 @@ defer:
|
|||
|
||||
int w_resync_timer(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device *device =
|
||||
container_of(w, struct drbd_device, resync_work);
|
||||
|
||||
switch (device->state.conn) {
|
||||
case C_VERIFY_S:
|
||||
w_make_ov_request(w, cancel);
|
||||
|
|
@ -439,7 +443,8 @@ void resync_timer_fn(unsigned long data)
|
|||
struct drbd_device *device = (struct drbd_device *) data;
|
||||
|
||||
if (list_empty(&device->resync_work.list))
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, &device->resync_work);
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&device->resync_work);
|
||||
}
|
||||
|
||||
static void fifo_set(struct fifo_buffer *fb, int value)
|
||||
|
|
@ -563,7 +568,8 @@ static int drbd_rs_number_requests(struct drbd_device *device)
|
|||
|
||||
int w_make_resync_request(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device_work *dw = device_work(w);
|
||||
struct drbd_device *device = dw->device;
|
||||
unsigned long bit;
|
||||
sector_t sector;
|
||||
const sector_t capacity = drbd_get_capacity(device->this_bdev);
|
||||
|
|
@ -727,7 +733,7 @@ next_sector:
|
|||
|
||||
static int w_make_ov_request(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device *device = device_work(w)->device;
|
||||
int number, i, size;
|
||||
sector_t sector;
|
||||
const sector_t capacity = drbd_get_capacity(device->this_bdev);
|
||||
|
|
@ -781,8 +787,10 @@ static int w_make_ov_request(struct drbd_work *w, int cancel)
|
|||
|
||||
int w_ov_finished(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_device *device = w->device;
|
||||
kfree(w);
|
||||
struct drbd_device_work *dw =
|
||||
container_of(w, struct drbd_device_work, w);
|
||||
struct drbd_device *device = dw->device;
|
||||
kfree(dw);
|
||||
ov_out_of_sync_print(device);
|
||||
drbd_resync_finished(device);
|
||||
|
||||
|
|
@ -791,8 +799,10 @@ int w_ov_finished(struct drbd_work *w, int cancel)
|
|||
|
||||
static int w_resync_finished(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_device *device = w->device;
|
||||
kfree(w);
|
||||
struct drbd_device_work *dw =
|
||||
container_of(w, struct drbd_device_work, w);
|
||||
struct drbd_device *device = dw->device;
|
||||
kfree(dw);
|
||||
|
||||
drbd_resync_finished(device);
|
||||
|
||||
|
|
@ -814,7 +824,7 @@ int drbd_resync_finished(struct drbd_device *device)
|
|||
unsigned long db, dt, dbdt;
|
||||
unsigned long n_oos;
|
||||
union drbd_state os, ns;
|
||||
struct drbd_work *w;
|
||||
struct drbd_device_work *dw;
|
||||
char *khelper_cmd = NULL;
|
||||
int verify_done = 0;
|
||||
|
||||
|
|
@ -828,20 +838,21 @@ int drbd_resync_finished(struct drbd_device *device)
|
|||
* is not finished by now). Retry in 100ms. */
|
||||
|
||||
schedule_timeout_interruptible(HZ / 10);
|
||||
w = kmalloc(sizeof(struct drbd_work), GFP_ATOMIC);
|
||||
if (w) {
|
||||
w->cb = w_resync_finished;
|
||||
w->device = device;
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, w);
|
||||
dw = kmalloc(sizeof(struct drbd_device_work), GFP_ATOMIC);
|
||||
if (dw) {
|
||||
dw->w.cb = w_resync_finished;
|
||||
dw->device = device;
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&dw->w);
|
||||
return 1;
|
||||
}
|
||||
drbd_err(device, "Warn failed to drbd_rs_del_all() and to kmalloc(w).\n");
|
||||
drbd_err(device, "Warn failed to drbd_rs_del_all() and to kmalloc(dw).\n");
|
||||
}
|
||||
|
||||
dt = (jiffies - device->rs_start - device->rs_paused) / HZ;
|
||||
if (dt <= 0)
|
||||
dt = 1;
|
||||
|
||||
|
||||
db = device->rs_total;
|
||||
/* adjust for verify start and stop sectors, respective reached position */
|
||||
if (device->state.conn == C_VERIFY_S || device->state.conn == C_VERIFY_T)
|
||||
|
|
@ -972,7 +983,7 @@ static void move_to_net_ee_or_free(struct drbd_device *device, struct drbd_peer_
|
|||
atomic_add(i, &device->pp_in_use_by_net);
|
||||
atomic_sub(i, &device->pp_in_use);
|
||||
spin_lock_irq(&device->resource->req_lock);
|
||||
list_add_tail(&peer_req->w.list, &device->net_ee);
|
||||
list_add_tail(&peer_req->dw.w.list, &device->net_ee);
|
||||
spin_unlock_irq(&device->resource->req_lock);
|
||||
wake_up(&drbd_pp_wait);
|
||||
} else
|
||||
|
|
@ -987,8 +998,9 @@ static void move_to_net_ee_or_free(struct drbd_device *device, struct drbd_peer_
|
|||
*/
|
||||
int w_e_end_data_req(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device_work *dw = device_work(w);
|
||||
struct drbd_peer_request *peer_req = container_of(dw, struct drbd_peer_request, dw);
|
||||
struct drbd_device *device = dw->device;
|
||||
int err;
|
||||
|
||||
if (unlikely(cancel)) {
|
||||
|
|
@ -1018,14 +1030,14 @@ int w_e_end_data_req(struct drbd_work *w, int cancel)
|
|||
|
||||
/**
|
||||
* w_e_end_rsdata_req() - Worker callback to send a P_RS_DATA_REPLY packet in response to a P_RS_DATA_REQUEST
|
||||
* @device: DRBD device.
|
||||
* @w: work object.
|
||||
* @cancel: The connection will be closed anyways
|
||||
*/
|
||||
int w_e_end_rsdata_req(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device_work *dw = device_work(w);
|
||||
struct drbd_peer_request *peer_req = container_of(dw, struct drbd_peer_request, dw);
|
||||
struct drbd_device *device = dw->device;
|
||||
int err;
|
||||
|
||||
if (unlikely(cancel)) {
|
||||
|
|
@ -1073,8 +1085,9 @@ int w_e_end_rsdata_req(struct drbd_work *w, int cancel)
|
|||
|
||||
int w_e_end_csum_rs_req(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device_work *dw = device_work(w);
|
||||
struct drbd_peer_request *peer_req = container_of(dw, struct drbd_peer_request, dw);
|
||||
struct drbd_device *device = dw->device;
|
||||
struct digest_info *di;
|
||||
int digest_size;
|
||||
void *digest = NULL;
|
||||
|
|
@ -1136,8 +1149,9 @@ int w_e_end_csum_rs_req(struct drbd_work *w, int cancel)
|
|||
|
||||
int w_e_end_ov_req(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device_work *dw = device_work(w);
|
||||
struct drbd_peer_request *peer_req = container_of(dw, struct drbd_peer_request, dw);
|
||||
struct drbd_device *device = dw->device;
|
||||
sector_t sector = peer_req->i.sector;
|
||||
unsigned int size = peer_req->i.size;
|
||||
int digest_size;
|
||||
|
|
@ -1192,8 +1206,9 @@ void drbd_ov_out_of_sync_found(struct drbd_device *device, sector_t sector, int
|
|||
|
||||
int w_e_end_ov_reply(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device_work *dw = device_work(w);
|
||||
struct drbd_peer_request *peer_req = container_of(dw, struct drbd_peer_request, dw);
|
||||
struct drbd_device *device = dw->device;
|
||||
struct digest_info *di;
|
||||
void *digest;
|
||||
sector_t sector = peer_req->i.sector;
|
||||
|
|
@ -1285,7 +1300,8 @@ static int drbd_send_barrier(struct drbd_connection *connection)
|
|||
|
||||
int w_send_write_hint(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device *device =
|
||||
container_of(w, struct drbd_device, unplug_work);
|
||||
struct drbd_socket *sock;
|
||||
|
||||
if (cancel)
|
||||
|
|
@ -1320,7 +1336,7 @@ static void maybe_send_barrier(struct drbd_connection *connection, unsigned int
|
|||
int w_send_out_of_sync(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_request *req = container_of(w, struct drbd_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct drbd_connection *connection = first_peer_device(device)->connection;
|
||||
int err;
|
||||
|
||||
|
|
@ -1343,14 +1359,13 @@ int w_send_out_of_sync(struct drbd_work *w, int cancel)
|
|||
|
||||
/**
|
||||
* w_send_dblock() - Worker callback to send a P_DATA packet in order to mirror a write request
|
||||
* @device: DRBD device.
|
||||
* @w: work object.
|
||||
* @cancel: The connection will be closed anyways
|
||||
*/
|
||||
int w_send_dblock(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_request *req = container_of(w, struct drbd_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct drbd_connection *connection = first_peer_device(device)->connection;
|
||||
int err;
|
||||
|
||||
|
|
@ -1371,14 +1386,13 @@ int w_send_dblock(struct drbd_work *w, int cancel)
|
|||
|
||||
/**
|
||||
* w_send_read_req() - Worker callback to send a read request (P_DATA_REQUEST) packet
|
||||
* @device: DRBD device.
|
||||
* @w: work object.
|
||||
* @cancel: The connection will be closed anyways
|
||||
*/
|
||||
int w_send_read_req(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_request *req = container_of(w, struct drbd_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device *device = req->device;
|
||||
struct drbd_connection *connection = first_peer_device(device)->connection;
|
||||
int err;
|
||||
|
||||
|
|
@ -1402,7 +1416,7 @@ int w_send_read_req(struct drbd_work *w, int cancel)
|
|||
int w_restart_disk_io(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_request *req = container_of(w, struct drbd_request, w);
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device *device = req->device;
|
||||
|
||||
if (bio_data_dir(req->master_bio) == WRITE && req->rq_state & RQ_IN_ACT_LOG)
|
||||
drbd_al_begin_io(device, &req->i, false);
|
||||
|
|
@ -1574,12 +1588,14 @@ void start_resync_timer_fn(unsigned long data)
|
|||
{
|
||||
struct drbd_device *device = (struct drbd_device *) data;
|
||||
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work, &device->start_resync_work);
|
||||
drbd_queue_work(&first_peer_device(device)->connection->sender_work,
|
||||
&device->start_resync_work);
|
||||
}
|
||||
|
||||
int w_start_resync(struct drbd_work *w, int cancel)
|
||||
{
|
||||
struct drbd_device *device = w->device;
|
||||
struct drbd_device *device =
|
||||
container_of(w, struct drbd_device, start_resync_work);
|
||||
|
||||
if (atomic_read(&device->unacked_cnt) || atomic_read(&device->rs_pending_cnt)) {
|
||||
drbd_warn(device, "w_start_resync later...\n");
|
||||
|
|
@ -1881,7 +1897,7 @@ static void wait_for_work(struct drbd_connection *connection, struct list_head *
|
|||
int drbd_worker(struct drbd_thread *thi)
|
||||
{
|
||||
struct drbd_connection *connection = thi->connection;
|
||||
struct drbd_work *w = NULL;
|
||||
struct drbd_device_work *dw = NULL;
|
||||
struct drbd_peer_device *peer_device;
|
||||
LIST_HEAD(work_list);
|
||||
int vnr;
|
||||
|
|
@ -1907,9 +1923,9 @@ int drbd_worker(struct drbd_thread *thi)
|
|||
break;
|
||||
|
||||
while (!list_empty(&work_list)) {
|
||||
w = list_first_entry(&work_list, struct drbd_work, list);
|
||||
list_del_init(&w->list);
|
||||
if (w->cb(w, connection->cstate < C_WF_REPORT_PARAMS) == 0)
|
||||
dw = list_first_entry(&work_list, struct drbd_device_work, w.list);
|
||||
list_del_init(&dw->w.list);
|
||||
if (dw->w.cb(&dw->w, connection->cstate < C_WF_REPORT_PARAMS) == 0)
|
||||
continue;
|
||||
if (connection->cstate >= C_WF_REPORT_PARAMS)
|
||||
conn_request_state(connection, NS(conn, C_NETWORK_FAILURE), CS_HARD);
|
||||
|
|
@ -1918,9 +1934,9 @@ int drbd_worker(struct drbd_thread *thi)
|
|||
|
||||
do {
|
||||
while (!list_empty(&work_list)) {
|
||||
w = list_first_entry(&work_list, struct drbd_work, list);
|
||||
list_del_init(&w->list);
|
||||
w->cb(w, 1);
|
||||
dw = list_first_entry(&work_list, struct drbd_device_work, w.list);
|
||||
list_del_init(&dw->w.list);
|
||||
dw->w.cb(&dw->w, 1);
|
||||
}
|
||||
dequeue_work_batch(&connection->sender_work, &work_list);
|
||||
} while (!list_empty(&work_list));
|
||||
|
|
|
|||
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