[PATCH 17/27] drbd: Create a dedicated struct drbd_device_work

From: Philipp Reisner
Date: Mon Dec 23 2013 - 17:05:34 EST

From: Andreas Gruenbacher <agruen@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Philipp Reisner <philipp.reisner@xxxxxxxxxx>
---
drivers/block/drbd/drbd_actlog.c | 16 +++--
drivers/block/drbd/drbd_int.h | 29 ++++----
drivers/block/drbd/drbd_main.c | 32 ++++-----
drivers/block/drbd/drbd_receiver.c | 84 +++++++++++-----------
drivers/block/drbd/drbd_req.c | 41 ++++++-----
drivers/block/drbd/drbd_req.h | 4 +-
drivers/block/drbd/drbd_state.c | 21 +++---
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 cacd47a..d971cb2 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;
};
@@ -593,7 +595,7 @@ _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);
@@ -612,8 +614,9 @@ 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
@@ -683,7 +686,7 @@ 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)) {
@@ -794,8 +797,9 @@ 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 5cf496d..eb2bc90 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -280,10 +280,11 @@ 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"
@@ -292,6 +293,7 @@ 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,
@@ -355,7 +357,7 @@ 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;
@@ -681,11 +683,11 @@ 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;
@@ -1860,7 +1862,8 @@ 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);
}
@@ -2087,7 +2090,9 @@ 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 7f178dc..0500b56 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 250c8d4..3c88efa 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 */

@@ -4494,7 +4497,6 @@ 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);
@@ -5217,7 +5219,7 @@ 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;

@@ -5249,13 +5251,13 @@ 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 daf7861..0fb0977 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 5ce6dc5..c684c96 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 3f5c5a5..c9a0dba 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -35,6 +35,7 @@ extern void tl_abort_disk_io(struct drbd_device *device);

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;
@@ -1148,9 +1149,10 @@ __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");
}
@@ -1162,7 +1164,7 @@ 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)
@@ -1531,18 +1533,19 @@ 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;
@@ -1843,10 +1846,10 @@ _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 7d68227..514d189 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)
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 @@ void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req) __releases(lo
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 @@ 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 @@ void wait_for_work(struct drbd_connection *connection, struct list_head *work_li
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));
--
1.7.9.5



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