diff options
author | Andreas Gruenbacher <agruen@linbit.com> | 2011-07-28 15:27:51 +0200 |
---|---|---|
committer | Philipp Reisner <philipp.reisner@linbit.com> | 2014-02-17 16:50:39 +0100 |
commit | 84b8c06b6591e73250e6ab4834a02a86c8994b91 (patch) | |
tree | ef2be94ac7b57c1042560a9a39d8c84550803b85 | |
parent | 8682eae9b4b26d54b9eeac8e17c534197e6d8744 (diff) | |
download | linux-stable-84b8c06b6591e73250e6ab4834a02a86c8994b91.tar.gz linux-stable-84b8c06b6591e73250e6ab4834a02a86c8994b91.tar.bz2 linux-stable-84b8c06b6591e73250e6ab4834a02a86c8994b91.zip |
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>
-rw-r--r-- | drivers/block/drbd/drbd_actlog.c | 16 | ||||
-rw-r--r-- | drivers/block/drbd/drbd_int.h | 29 | ||||
-rw-r--r-- | drivers/block/drbd/drbd_main.c | 32 | ||||
-rw-r--r-- | drivers/block/drbd/drbd_receiver.c | 84 | ||||
-rw-r--r-- | drivers/block/drbd/drbd_req.c | 41 | ||||
-rw-r--r-- | drivers/block/drbd/drbd_req.h | 4 | ||||
-rw-r--r-- | drivers/block/drbd/drbd_state.c | 21 | ||||
-rw-r--r-- | drivers/block/drbd/drbd_worker.c | 134 |
8 files changed, 197 insertions, 164 deletions
diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c index 081ff42602d0..90ae4ba8f9ee 100644 --- a/drivers/block/drbd/drbd_actlog.c +++ b/drivers/block/drbd/drbd_actlog.c @@ -95,11 +95,13 @@ struct __packed al_transaction_on_disk { struct update_odbm_work { struct drbd_work w; + struct drbd_device *device; unsigned int enr; }; struct update_al_work { struct drbd_work w; + struct drbd_device *device; struct completion event; int err; }; @@ -594,7 +596,7 @@ _al_write_transaction(struct drbd_device *device) static int w_al_write_transaction(struct drbd_work *w, int unused) { struct update_al_work *aw = container_of(w, struct update_al_work, w); - struct drbd_device *device = w->device; + struct drbd_device *device = aw->device; int err; err = _al_write_transaction(device); @@ -613,8 +615,9 @@ static int al_write_transaction(struct drbd_device *device, bool delegate) struct update_al_work al_work; init_completion(&al_work.event); al_work.w.cb = w_al_write_transaction; - al_work.w.device = device; - drbd_queue_work_front(&first_peer_device(device)->connection->sender_work, &al_work.w); + al_work.device = device; + drbd_queue_work_front(&first_peer_device(device)->connection->sender_work, + &al_work.w); wait_for_completion(&al_work.event); return al_work.err; } else @@ -684,7 +687,7 @@ int drbd_initialize_al(struct drbd_device *device, void *buffer) static int w_update_odbm(struct drbd_work *w, int unused) { struct update_odbm_work *udw = container_of(w, struct update_odbm_work, w); - struct drbd_device *device = w->device; + struct drbd_device *device = udw->device; struct sib_info sib = { .sib_reason = SIB_SYNC_PROGRESS, }; if (!get_ldev(device)) { @@ -795,8 +798,9 @@ static void drbd_try_clear_on_disk_bm(struct drbd_device *device, sector_t secto if (udw) { udw->enr = ext->lce.lc_number; udw->w.cb = w_update_odbm; - udw->w.device = device; - drbd_queue_work_front(&first_peer_device(device)->connection->sender_work, &udw->w); + udw->device = device; + drbd_queue_work_front(&first_peer_device(device)->connection->sender_work, + &udw->w); } else { drbd_warn(device, "Could not kmalloc an udw\n"); } diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index ab3111e8ae70..3c52a4dc423d 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -281,10 +281,11 @@ static inline enum drbd_thread_state get_t_state(struct drbd_thread *thi) struct drbd_work { struct list_head list; int (*cb)(struct drbd_work *, int cancel); - union { - struct drbd_device *device; - struct drbd_connection *connection; - }; +}; + +struct drbd_device_work { + struct drbd_work w; + struct drbd_device *device; }; #include "drbd_interval.h" @@ -293,6 +294,7 @@ extern int drbd_wait_misc(struct drbd_device *, struct drbd_interval *); struct drbd_request { struct drbd_work w; + struct drbd_device *device; /* if local IO is not allowed, will be NULL. * if local IO _is_ allowed, holds the locally submitted bio clone, @@ -360,7 +362,7 @@ struct digest_info { }; struct drbd_peer_request { - struct drbd_work w; + struct drbd_device_work dw; struct drbd_epoch *epoch; /* for writes */ struct page *pages; atomic_t pending_bios; @@ -686,11 +688,11 @@ struct drbd_device { struct gendisk *vdisk; unsigned long last_reattach_jif; - struct drbd_work resync_work, - unplug_work, - go_diskless, - md_sync_work, - start_resync_work; + struct drbd_work resync_work; + struct drbd_work unplug_work; + struct drbd_work go_diskless; + struct drbd_work md_sync_work; + struct drbd_work start_resync_work; struct timer_list resync_timer; struct timer_list md_sync_timer; struct timer_list start_resync_timer; @@ -1865,7 +1867,8 @@ static inline void put_ldev(struct drbd_device *device) if (device->state.disk == D_FAILED) { /* all application IO references gone. */ if (!test_and_set_bit(GO_DISKLESS, &device->flags)) - drbd_queue_work(&first_peer_device(device)->connection->sender_work, &device->go_diskless); + drbd_queue_work(&first_peer_device(device)->connection->sender_work, + &device->go_diskless); } wake_up(&device->misc_wait); } @@ -2092,7 +2095,9 @@ static inline void dec_ap_bio(struct drbd_device *device) if (ap_bio == 0 && test_bit(BITMAP_IO, &device->flags)) { if (!test_and_set_bit(BITMAP_IO_QUEUED, &device->flags)) - drbd_queue_work(&first_peer_device(device)->connection->sender_work, &device->bm_io_work.w); + drbd_queue_work(&first_peer_device(device)-> + connection->sender_work, + &device->bm_io_work.w); } /* this currently does wake_up for every dec_ap_bio! diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 6c86807f22ec..ada1b07c564e 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -312,7 +312,7 @@ void tl_abort_disk_io(struct drbd_device *device) list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) { if (!(req->rq_state & RQ_LOCAL_PENDING)) continue; - if (req->w.device != device) + if (req->device != device) continue; _req_mod(req, ABORT_DISK_IO); } @@ -1917,13 +1917,6 @@ void drbd_init_set_defaults(struct drbd_device *device) device->bm_io_work.w.cb = w_bitmap_io; device->start_resync_work.cb = w_start_resync; - device->resync_work.device = device; - device->unplug_work.device = device; - device->go_diskless.device = device; - device->md_sync_work.device = device; - device->bm_io_work.w.device = device; - device->start_resync_work.device = device; - init_timer(&device->resync_timer); init_timer(&device->md_sync_timer); init_timer(&device->start_resync_timer); @@ -2222,12 +2215,12 @@ static void do_retry(struct work_struct *ws) spin_unlock_irq(&retry->lock); list_for_each_entry_safe(req, tmp, &writes, tl_requests) { - struct drbd_device *device = req->w.device; + struct drbd_device *device = req->device; struct bio *bio = req->master_bio; unsigned long start_time = req->start_time; bool expected; - expected = + expected = expect(atomic_read(&req->completion_ref) == 0) && expect(req->rq_state & RQ_POSTPONED) && expect((req->rq_state & RQ_LOCAL_PENDING) == 0 || @@ -2273,7 +2266,7 @@ void drbd_restart_request(struct drbd_request *req) /* Drop the extra reference that would otherwise * have been dropped by complete_master_bio. * do_retry() needs to grab a new one. */ - dec_ap_bio(req->w.device); + dec_ap_bio(req->device); queue_work(retry.wq, &retry.worker); } @@ -3468,8 +3461,9 @@ int drbd_bmio_clear_n_write(struct drbd_device *device) static int w_bitmap_io(struct drbd_work *w, int unused) { - struct bm_io_work *work = container_of(w, struct bm_io_work, w); - struct drbd_device *device = w->device; + struct drbd_device *device = + container_of(w, struct drbd_device, bm_io_work.w); + struct bm_io_work *work = &device->bm_io_work; int rv = -EIO; D_ASSERT(device, atomic_read(&device->ap_bio_cnt) == 0); @@ -3509,7 +3503,8 @@ void drbd_ldev_destroy(struct drbd_device *device) static int w_go_diskless(struct drbd_work *w, int unused) { - struct drbd_device *device = w->device; + struct drbd_device *device = + container_of(w, struct drbd_device, go_diskless); D_ASSERT(device, device->state.disk == D_FAILED); /* we cannot assert local_cnt == 0 here, as get_ldev_if_state will @@ -3583,7 +3578,8 @@ void drbd_queue_bitmap_io(struct drbd_device *device, set_bit(BITMAP_IO, &device->flags); if (atomic_read(&device->ap_bio_cnt) == 0) { if (!test_and_set_bit(BITMAP_IO_QUEUED, &device->flags)) - drbd_queue_work(&first_peer_device(device)->connection->sender_work, &device->bm_io_work.w); + drbd_queue_work(&first_peer_device(device)->connection->sender_work, + &device->bm_io_work.w); } spin_unlock_irq(&device->resource->req_lock); } @@ -3643,12 +3639,14 @@ static void md_sync_timer_fn(unsigned long data) /* must not double-queue! */ if (list_empty(&device->md_sync_work.list)) - drbd_queue_work_front(&first_peer_device(device)->connection->sender_work, &device->md_sync_work); + drbd_queue_work_front(&first_peer_device(device)->connection->sender_work, + &device->md_sync_work); } static int w_md_sync(struct drbd_work *w, int unused) { - struct drbd_device *device = w->device; + struct drbd_device *device = + container_of(w, struct drbd_device, md_sync_work); drbd_warn(device, "md_sync_timer expired! Worker calls drbd_md_sync().\n"); #ifdef DEBUG diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index e262b0bcbf67..87114361d804 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -209,7 +209,7 @@ static void reclaim_finished_net_peer_reqs(struct drbd_device *device, stop to examine the list... */ list_for_each_safe(le, tle, &device->net_ee) { - peer_req = list_entry(le, struct drbd_peer_request, w.list); + peer_req = list_entry(le, struct drbd_peer_request, dw.w.list); if (drbd_peer_req_has_active_page(peer_req)) break; list_move(le, to_be_freed); @@ -225,7 +225,7 @@ static void drbd_kick_lo_and_reclaim_net(struct drbd_device *device) reclaim_finished_net_peer_reqs(device, &reclaimed); spin_unlock_irq(&device->resource->req_lock); - list_for_each_entry_safe(peer_req, t, &reclaimed, w.list) + list_for_each_entry_safe(peer_req, t, &reclaimed, dw.w.list) drbd_free_net_peer_req(device, peer_req); } @@ -363,7 +363,7 @@ drbd_alloc_peer_req(struct drbd_peer_device *peer_device, u64 id, sector_t secto peer_req->i.waiting = false; peer_req->epoch = NULL; - peer_req->w.device = device; + peer_req->dw.device = device; peer_req->pages = page; atomic_set(&peer_req->pending_bios, 0); peer_req->flags = 0; @@ -402,7 +402,7 @@ int drbd_free_peer_reqs(struct drbd_device *device, struct list_head *list) list_splice_init(list, &work_list); spin_unlock_irq(&device->resource->req_lock); - list_for_each_entry_safe(peer_req, t, &work_list, w.list) { + list_for_each_entry_safe(peer_req, t, &work_list, dw.w.list) { __drbd_free_peer_req(device, peer_req, is_net); count++; } @@ -424,18 +424,18 @@ static int drbd_finish_peer_reqs(struct drbd_device *device) list_splice_init(&device->done_ee, &work_list); spin_unlock_irq(&device->resource->req_lock); - list_for_each_entry_safe(peer_req, t, &reclaimed, w.list) + list_for_each_entry_safe(peer_req, t, &reclaimed, dw.w.list) drbd_free_net_peer_req(device, peer_req); /* possible callbacks here: * e_end_block, and e_end_resync_block, e_send_superseded. * all ignore the last argument. */ - list_for_each_entry_safe(peer_req, t, &work_list, w.list) { + list_for_each_entry_safe(peer_req, t, &work_list, dw.w.list) { int err2; /* list_del not necessary, next/prev members not touched */ - err2 = peer_req->w.cb(&peer_req->w, !!err); + err2 = peer_req->dw.w.cb(&peer_req->dw.w, !!err); if (!err) err = err2; drbd_free_peer_req(device, peer_req); @@ -1664,9 +1664,10 @@ static int recv_dless_read(struct drbd_peer_device *peer_device, struct drbd_req */ static int e_end_resync_block(struct drbd_work *w, int unused) { + struct drbd_device_work *dw = device_work(w); struct drbd_peer_request *peer_req = - container_of(w, struct drbd_peer_request, w); - struct drbd_device *device = w->device; + container_of(dw, struct drbd_peer_request, dw); + struct drbd_device *device = dw->device; sector_t sector = peer_req->i.sector; int err; @@ -1702,10 +1703,10 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto /* corresponding dec_unacked() in e_end_resync_block() * respective _drbd_clear_done_ee */ - peer_req->w.cb = e_end_resync_block; + peer_req->dw.w.cb = e_end_resync_block; spin_lock_irq(&device->resource->req_lock); - list_add(&peer_req->w.list, &device->sync_ee); + list_add(&peer_req->dw.w.list, &device->sync_ee); spin_unlock_irq(&device->resource->req_lock); atomic_add(data_size >> 9, &device->rs_sect_ev); @@ -1715,7 +1716,7 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto /* 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); drbd_free_peer_req(device, peer_req); @@ -1835,9 +1836,10 @@ static void restart_conflicting_writes(struct drbd_device *device, */ static int e_end_block(struct drbd_work *w, int cancel) { + struct drbd_device_work *dw = device_work(w); struct drbd_peer_request *peer_req = - container_of(w, struct drbd_peer_request, w); - struct drbd_device *device = w->device; + container_of(dw, struct drbd_peer_request, dw); + struct drbd_device *device = dw->device; sector_t sector = peer_req->i.sector; int err = 0, pcmd; @@ -1874,11 +1876,11 @@ static int e_end_block(struct drbd_work *w, int cancel) return err; } -static int e_send_ack(struct drbd_work *w, enum drbd_packet ack) +static int e_send_ack(struct drbd_device_work *dw, enum drbd_packet ack) { - struct drbd_device *device = w->device; + struct drbd_device *device = dw->device; struct drbd_peer_request *peer_req = - container_of(w, struct drbd_peer_request, w); + container_of(dw, struct drbd_peer_request, dw); int err; err = drbd_send_ack(first_peer_device(device), ack, peer_req); @@ -1889,14 +1891,15 @@ static int e_send_ack(struct drbd_work *w, enum drbd_packet ack) static int e_send_superseded(struct drbd_work *w, int unused) { - return e_send_ack(w, P_SUPERSEDED); + return e_send_ack(device_work(w), P_SUPERSEDED); } static int e_send_retry_write(struct drbd_work *w, int unused) { - struct drbd_connection *connection = first_peer_device(w->device)->connection; + struct drbd_device_work *dw = device_work(w); + struct drbd_connection *connection = first_peer_device(dw->device)->connection; - return e_send_ack(w, connection->agreed_pro_version >= 100 ? + return e_send_ack(dw, connection->agreed_pro_version >= 100 ? P_RETRY_WRITE : P_SUPERSEDED); } @@ -1943,7 +1946,7 @@ static bool overlapping_resync_write(struct drbd_device *device, struct drbd_pee bool rv = 0; spin_lock_irq(&device->resource->req_lock); - 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); } diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index f74c0a244e9a..3779c8d2875b 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -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"); diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index 5ce6dc505751..c684c963538e 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -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; diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c index 87ae01199a19..2e8e54b13332 100644 --- a/drivers/block/drbd/drbd_state.c +++ b/drivers/block/drbd/drbd_state.c @@ -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"); } diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index cb9ba141b610..c47fcc5af7f2 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -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)); |