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Subject[PATCH 102/118] drbd: Generalized the work callbacks
Date
No longer work callbacks must operate on a mdev. From now on they
can also operate on a tconn.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
---
drivers/block/drbd/drbd_actlog.c | 8 ++-
drivers/block/drbd/drbd_int.h | 45 ++++++++++---------
drivers/block/drbd/drbd_main.c | 17 +++++---
drivers/block/drbd/drbd_receiver.c | 13 ++++--
drivers/block/drbd/drbd_state.c | 5 +-
drivers/block/drbd/drbd_worker.c | 82 +++++++++++++++++++++--------------
6 files changed, 100 insertions(+), 70 deletions(-)

diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index 637a937..0748871 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -63,7 +63,7 @@ struct drbd_atodb_wait {
};


-int w_al_write_transaction(struct drbd_conf *, struct drbd_work *, int);
+int w_al_write_transaction(struct drbd_work *, int);

static int _drbd_md_sync_page_io(struct drbd_conf *mdev,
struct drbd_backing_dev *bdev,
@@ -291,9 +291,10 @@ static unsigned int rs_extent_to_bm_page(unsigned int rs_enr)
}

int
-w_al_write_transaction(struct drbd_conf *mdev, struct drbd_work *w, int unused)
+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_conf *mdev = w->mdev;
struct lc_element *updated = aw->al_ext;
const unsigned int new_enr = aw->enr;
const unsigned int evicted = aw->old_enr;
@@ -612,9 +613,10 @@ void drbd_al_shrink(struct drbd_conf *mdev)
wake_up(&mdev->al_wait);
}

-static int w_update_odbm(struct drbd_conf *mdev, struct drbd_work *w, int unused)
+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_conf *mdev = w->mdev;

if (!get_ldev(mdev)) {
if (__ratelimit(&drbd_ratelimit_state))
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index ddbb3d2..12f0c5e 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -640,11 +640,14 @@ static inline enum drbd_thread_state get_t_state(struct drbd_thread *thi)
}

struct drbd_work;
-typedef int (*drbd_work_cb)(struct drbd_conf *, struct drbd_work *, int cancel);
+typedef int (*drbd_work_cb)(struct drbd_work *, int cancel);
struct drbd_work {
struct list_head list;
drbd_work_cb cb;
- struct drbd_conf *mdev;
+ union {
+ struct drbd_conf *mdev;
+ struct drbd_tconn *tconn;
+ };
};

#include "drbd_interval.h"
@@ -1494,25 +1497,25 @@ extern void drbd_csum_bio(struct drbd_conf *, struct crypto_hash *, struct bio *
extern void drbd_csum_ee(struct drbd_conf *, struct crypto_hash *,
struct drbd_peer_request *, void *);
/* worker callbacks */
-extern int w_req_cancel_conflict(struct drbd_conf *, struct drbd_work *, int);
-extern int w_read_retry_remote(struct drbd_conf *, struct drbd_work *, int);
-extern int w_e_end_data_req(struct drbd_conf *, struct drbd_work *, int);
-extern int w_e_end_rsdata_req(struct drbd_conf *, struct drbd_work *, int);
-extern int w_e_end_csum_rs_req(struct drbd_conf *, struct drbd_work *, int);
-extern int w_e_end_ov_reply(struct drbd_conf *, struct drbd_work *, int);
-extern int w_e_end_ov_req(struct drbd_conf *, struct drbd_work *, int);
-extern int w_ov_finished(struct drbd_conf *, struct drbd_work *, int);
-extern int w_resync_timer(struct drbd_conf *, struct drbd_work *, int);
-extern int w_resume_next_sg(struct drbd_conf *, struct drbd_work *, int);
-extern int w_send_write_hint(struct drbd_conf *, struct drbd_work *, int);
-extern int w_send_dblock(struct drbd_conf *, struct drbd_work *, int);
-extern int w_send_barrier(struct drbd_conf *, struct drbd_work *, int);
-extern int w_send_read_req(struct drbd_conf *, struct drbd_work *, int);
-extern int w_prev_work_done(struct drbd_conf *, struct drbd_work *, int);
-extern int w_e_reissue(struct drbd_conf *, struct drbd_work *, int);
-extern int w_restart_disk_io(struct drbd_conf *, struct drbd_work *, int);
-extern int w_send_oos(struct drbd_conf *, struct drbd_work *, int);
-extern int w_start_resync(struct drbd_conf *, struct drbd_work *, int);
+extern int w_req_cancel_conflict(struct drbd_work *, int);
+extern int w_read_retry_remote(struct drbd_work *, int);
+extern int w_e_end_data_req(struct drbd_work *, int);
+extern int w_e_end_rsdata_req(struct drbd_work *, int);
+extern int w_e_end_csum_rs_req(struct drbd_work *, int);
+extern int w_e_end_ov_reply(struct drbd_work *, int);
+extern int w_e_end_ov_req(struct drbd_work *, int);
+extern int w_ov_finished(struct drbd_work *, int);
+extern int w_resync_timer(struct drbd_work *, int);
+extern int w_resume_next_sg(struct drbd_work *, int);
+extern int w_send_write_hint(struct drbd_work *, int);
+extern int w_send_dblock(struct drbd_work *, int);
+extern int w_send_barrier(struct drbd_work *, int);
+extern int w_send_read_req(struct drbd_work *, int);
+extern int w_prev_work_done(struct drbd_work *, int);
+extern int w_e_reissue(struct drbd_work *, int);
+extern int w_restart_disk_io(struct drbd_work *, int);
+extern int w_send_oos(struct drbd_work *, int);
+extern int w_start_resync(struct drbd_work *, int);

extern void resync_timer_fn(unsigned long data);
extern void start_resync_timer_fn(unsigned long data);
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 8f04fd0..3b49d0e 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -64,10 +64,10 @@ int drbd_asender(struct drbd_thread *);
int drbd_init(void);
static int drbd_open(struct block_device *bdev, fmode_t mode);
static int drbd_release(struct gendisk *gd, fmode_t mode);
-static int w_md_sync(struct drbd_conf *mdev, struct drbd_work *w, int unused);
+static int w_md_sync(struct drbd_work *w, int unused);
static void md_sync_timer_fn(unsigned long data);
-static int w_bitmap_io(struct drbd_conf *mdev, struct drbd_work *w, int unused);
-static int w_go_diskless(struct drbd_conf *mdev, struct drbd_work *w, int unused);
+static int w_bitmap_io(struct drbd_work *w, int unused);
+static int w_go_diskless(struct drbd_work *w, int unused);

MODULE_AUTHOR("Philipp Reisner <phil@linbit.com>, "
"Lars Ellenberg <lars@linbit.com>");
@@ -2803,9 +2803,10 @@ int drbd_bmio_clear_n_write(struct drbd_conf *mdev)
return rv;
}

-static int w_bitmap_io(struct drbd_conf *mdev, struct drbd_work *w, int unused)
+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_conf *mdev = w->mdev;
int rv = -EIO;

D_ASSERT(atomic_read(&mdev->ap_bio_cnt) == 0);
@@ -2848,8 +2849,10 @@ void drbd_ldev_destroy(struct drbd_conf *mdev)
clear_bit(GO_DISKLESS, &mdev->flags);
}

-static int w_go_diskless(struct drbd_conf *mdev, struct drbd_work *w, int unused)
+static int w_go_diskless(struct drbd_work *w, int unused)
{
+ struct drbd_conf *mdev = w->mdev;
+
D_ASSERT(mdev->state.disk == D_FAILED);
/* we cannot assert local_cnt == 0 here, as get_ldev_if_state will
* inc/dec it frequently. Once we are D_DISKLESS, no one will touch
@@ -2962,8 +2965,10 @@ static void md_sync_timer_fn(unsigned long data)
drbd_queue_work_front(&mdev->tconn->data.work, &mdev->md_sync_work);
}

-static int w_md_sync(struct drbd_conf *mdev, struct drbd_work *w, int unused)
+static int w_md_sync(struct drbd_work *w, int unused)
{
+ struct drbd_conf *mdev = w->mdev;
+
dev_warn(DEV, "md_sync_timer expired! Worker calls drbd_md_sync().\n");
#ifdef DEBUG
dev_warn(DEV, "last md_mark_dirty: %s:%u\n",
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 54eb53f..55fc243 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -65,7 +65,7 @@ static int drbd_do_auth(struct drbd_tconn *tconn);
static int drbd_disconnected(int vnr, void *p, void *data);

static enum finish_epoch drbd_may_finish_epoch(struct drbd_conf *, struct drbd_epoch *, enum epoch_event);
-static int e_end_block(struct drbd_conf *, struct drbd_work *, int);
+static int e_end_block(struct drbd_work *, int);


#define GFP_TRY (__GFP_HIGHMEM | __GFP_NOWARN)
@@ -420,7 +420,7 @@ static int drbd_process_done_ee(struct drbd_conf *mdev)
*/
list_for_each_entry_safe(peer_req, t, &work_list, w.list) {
/* list_del not necessary, next/prev members not touched */
- ok = peer_req->w.cb(mdev, &peer_req->w, !ok) && ok;
+ ok = peer_req->w.cb(&peer_req->w, !ok) && ok;
drbd_free_ee(mdev, peer_req);
}
wake_up(&mdev->ee_wait);
@@ -1450,9 +1450,10 @@ static int recv_dless_read(struct drbd_conf *mdev, struct drbd_request *req,

/* e_end_resync_block() is called via
* drbd_process_done_ee() by asender only */
-static int e_end_resync_block(struct drbd_conf *mdev, struct drbd_work *w, int unused)
+static int e_end_resync_block(struct drbd_work *w, int unused)
{
struct drbd_peer_request *peer_req = (struct drbd_peer_request *)w;
+ struct drbd_conf *mdev = w->mdev;
sector_t sector = peer_req->i.sector;
int ok;

@@ -1587,9 +1588,10 @@ static int receive_RSDataReply(struct drbd_conf *mdev, enum drbd_packet cmd,
/* e_end_block() is called via drbd_process_done_ee().
* this means this function only runs in the asender thread
*/
-static int e_end_block(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+static int e_end_block(struct drbd_work *w, int cancel)
{
struct drbd_peer_request *peer_req = (struct drbd_peer_request *)w;
+ struct drbd_conf *mdev = w->mdev;
sector_t sector = peer_req->i.sector;
int ok = 1, pcmd;

@@ -1624,9 +1626,10 @@ static int e_end_block(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
return ok;
}

-static int e_send_discard_ack(struct drbd_conf *mdev, struct drbd_work *w, int unused)
+static int e_send_discard_ack(struct drbd_work *w, int unused)
{
struct drbd_peer_request *peer_req = (struct drbd_peer_request *)w;
+ struct drbd_conf *mdev = w->mdev;
int ok = 1;

D_ASSERT(mdev->tconn->net_conf->wire_protocol == DRBD_PROT_C);
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index 3667984..30a3a1d 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -40,7 +40,7 @@ struct after_state_chg_work {

extern void _tl_restart(struct drbd_conf *mdev, enum drbd_req_event what);
int drbd_send_state_req(struct drbd_conf *, union drbd_state, union drbd_state);
-static int w_after_state_ch(struct drbd_conf *mdev, struct drbd_work *w, int unused);
+static int w_after_state_ch(struct drbd_work *w, int unused);
static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
union drbd_state ns, enum chg_state_flags flags);
static void after_conn_state_ch(struct drbd_tconn *tconn, union drbd_state os,
@@ -853,10 +853,11 @@ __drbd_set_state(struct drbd_conf *mdev, union drbd_state ns,
return rv;
}

-static int w_after_state_ch(struct drbd_conf *mdev, struct drbd_work *w, int unused)
+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_conf *mdev = w->mdev;

after_state_ch(mdev, ascw->os, ascw->ns, ascw->flags);
if (ascw->flags & CS_WAIT_COMPLETE) {
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 3f0f84a..418f44a 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -38,9 +38,8 @@
#include "drbd_int.h"
#include "drbd_req.h"

-static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int cancel);
-static int w_make_resync_request(struct drbd_conf *mdev,
- struct drbd_work *w, int cancel);
+static int w_make_ov_request(struct drbd_work *w, int cancel);
+static int w_make_resync_request(struct drbd_work *w, int cancel);



@@ -228,9 +227,10 @@ void drbd_endio_pri(struct bio *bio, int error)
complete_master_bio(mdev, &m);
}

-int w_read_retry_remote(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_read_retry_remote(struct drbd_work *w, int cancel)
{
struct drbd_request *req = container_of(w, struct drbd_request, w);
+ struct drbd_conf *mdev = w->mdev;

/* We should not detach for read io-error,
* but try to WRITE the P_DATA_REPLY to the failed location,
@@ -244,7 +244,7 @@ int w_read_retry_remote(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
}
spin_unlock_irq(&mdev->tconn->req_lock);

- return w_send_read_req(mdev, w, 0);
+ return w_send_read_req(w, 0);
}

void drbd_csum_ee(struct drbd_conf *mdev, struct crypto_hash *tfm,
@@ -295,11 +295,10 @@ void drbd_csum_bio(struct drbd_conf *mdev, struct crypto_hash *tfm, struct bio *
crypto_hash_final(&desc, digest);
}

-/* TODO merge common code with w_e_end_ov_req */
-int w_e_send_csum(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+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_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
+ struct drbd_conf *mdev = w->mdev;
int digest_size;
void *digest;
int ok = 1;
@@ -383,14 +382,15 @@ defer:
return -EAGAIN;
}

-int w_resync_timer(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_resync_timer(struct drbd_work *w, int cancel)
{
+ struct drbd_conf *mdev = w->mdev;
switch (mdev->state.conn) {
case C_VERIFY_S:
- w_make_ov_request(mdev, w, cancel);
+ w_make_ov_request(w, cancel);
break;
case C_SYNC_TARGET:
- w_make_resync_request(mdev, w, cancel);
+ w_make_resync_request(w, cancel);
break;
}

@@ -504,9 +504,9 @@ static int drbd_rs_number_requests(struct drbd_conf *mdev)
return number;
}

-static int w_make_resync_request(struct drbd_conf *mdev,
- struct drbd_work *w, int cancel)
+static int w_make_resync_request(struct drbd_work *w, int cancel)
{
+ struct drbd_conf *mdev = w->mdev;
unsigned long bit;
sector_t sector;
const sector_t capacity = drbd_get_capacity(mdev->this_bdev);
@@ -664,8 +664,9 @@ next_sector:
return 1;
}

-static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+static int w_make_ov_request(struct drbd_work *w, int cancel)
{
+ struct drbd_conf *mdev = w->mdev;
int number, i, size;
sector_t sector;
const sector_t capacity = drbd_get_capacity(mdev->this_bdev);
@@ -707,8 +708,9 @@ static int w_make_ov_request(struct drbd_conf *mdev, struct drbd_work *w, int ca
return 1;
}

-int w_ov_finished(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_ov_finished(struct drbd_work *w, int cancel)
{
+ struct drbd_conf *mdev = w->mdev;
kfree(w);
ov_oos_print(mdev);
drbd_resync_finished(mdev);
@@ -716,8 +718,9 @@ int w_ov_finished(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
return 1;
}

-static int w_resync_finished(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+static int w_resync_finished(struct drbd_work *w, int cancel)
{
+ struct drbd_conf *mdev = w->mdev;
kfree(w);

drbd_resync_finished(mdev);
@@ -901,9 +904,10 @@ static void move_to_net_ee_or_free(struct drbd_conf *mdev, struct drbd_peer_requ
* @w: work object.
* @cancel: The connection will be closed anyways
*/
-int w_e_end_data_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+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_conf *mdev = w->mdev;
int ok;

if (unlikely(cancel)) {
@@ -937,9 +941,10 @@ int w_e_end_data_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
* @w: work object.
* @cancel: The connection will be closed anyways
*/
-int w_e_end_rsdata_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+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_conf *mdev = w->mdev;
int ok;

if (unlikely(cancel)) {
@@ -985,9 +990,10 @@ int w_e_end_rsdata_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
return ok;
}

-int w_e_end_csum_rs_req(struct drbd_conf *mdev, 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_conf *mdev = w->mdev;
struct digest_info *di;
int digest_size;
void *digest = NULL;
@@ -1047,10 +1053,10 @@ int w_e_end_csum_rs_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
return ok;
}

-/* TODO merge common code with w_e_send_csum */
-int w_e_end_ov_req(struct drbd_conf *mdev, 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_conf *mdev = w->mdev;
sector_t sector = peer_req->i.sector;
unsigned int size = peer_req->i.size;
int digest_size;
@@ -1105,9 +1111,10 @@ void drbd_ov_oos_found(struct drbd_conf *mdev, sector_t sector, int size)
drbd_set_out_of_sync(mdev, sector, size);
}

-int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+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_conf *mdev = w->mdev;
struct digest_info *di;
void *digest;
sector_t sector = peer_req->i.sector;
@@ -1172,16 +1179,18 @@ int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
return ok;
}

-int w_prev_work_done(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_prev_work_done(struct drbd_work *w, int cancel)
{
struct drbd_wq_barrier *b = container_of(w, struct drbd_wq_barrier, w);
+
complete(&b->done);
return 1;
}

-int w_send_barrier(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_send_barrier(struct drbd_work *w, int cancel)
{
struct drbd_tl_epoch *b = container_of(w, struct drbd_tl_epoch, w);
+ struct drbd_conf *mdev = w->mdev;
struct p_barrier *p = &mdev->tconn->data.sbuf.barrier;
int ok = 1;

@@ -1210,16 +1219,18 @@ int w_send_barrier(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
return ok;
}

-int w_send_write_hint(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_send_write_hint(struct drbd_work *w, int cancel)
{
+ struct drbd_conf *mdev = w->mdev;
if (cancel)
return 1;
return drbd_send_short_cmd(mdev, P_UNPLUG_REMOTE);
}

-int w_send_oos(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_send_oos(struct drbd_work *w, int cancel)
{
struct drbd_request *req = container_of(w, struct drbd_request, w);
+ struct drbd_conf *mdev = w->mdev;
int ok;

if (unlikely(cancel)) {
@@ -1239,9 +1250,10 @@ int w_send_oos(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
* @w: work object.
* @cancel: The connection will be closed anyways
*/
-int w_send_dblock(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_send_dblock(struct drbd_work *w, int cancel)
{
struct drbd_request *req = container_of(w, struct drbd_request, w);
+ struct drbd_conf *mdev = w->mdev;
int ok;

if (unlikely(cancel)) {
@@ -1261,9 +1273,10 @@ int w_send_dblock(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
* @w: work object.
* @cancel: The connection will be closed anyways
*/
-int w_send_read_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_send_read_req(struct drbd_work *w, int cancel)
{
struct drbd_request *req = container_of(w, struct drbd_request, w);
+ struct drbd_conf *mdev = w->mdev;
int ok;

if (unlikely(cancel)) {
@@ -1285,9 +1298,10 @@ int w_send_read_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
return ok;
}

-int w_restart_disk_io(struct drbd_conf *mdev, 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_conf *mdev = w->mdev;

if (bio_data_dir(req->master_bio) == WRITE && req->rq_state & RQ_IN_ACT_LOG)
drbd_al_begin_io(mdev, req->i.sector);
@@ -1447,8 +1461,10 @@ void start_resync_timer_fn(unsigned long data)
drbd_queue_work(&mdev->tconn->data.work, &mdev->start_resync_work);
}

-int w_start_resync(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
+int w_start_resync(struct drbd_work *w, int cancel)
{
+ struct drbd_conf *mdev = w->mdev;
+
if (atomic_read(&mdev->unacked_cnt) || atomic_read(&mdev->rs_pending_cnt)) {
dev_warn(DEV, "w_start_resync later...\n");
mdev->start_resync_timer.expires = jiffies + HZ/10;
@@ -1702,7 +1718,7 @@ int drbd_worker(struct drbd_thread *thi)
list_del_init(&w->list);
spin_unlock_irq(&tconn->data.work.q_lock);

- if (!w->cb(w->mdev, w, tconn->volume0->state.conn < C_CONNECTED)) {
+ if (!w->cb(w, tconn->volume0->state.conn < C_CONNECTED)) {
/* dev_warn(DEV, "worker: a callback failed! \n"); */
if (tconn->volume0->state.conn >= C_CONNECTED)
drbd_force_state(tconn->volume0,
@@ -1718,7 +1734,7 @@ int drbd_worker(struct drbd_thread *thi)
while (!list_empty(&work_list)) {
w = list_entry(work_list.next, struct drbd_work, list);
list_del_init(&w->list);
- w->cb(w->mdev, w, 1);
+ w->cb(w, 1);
}

spin_lock_irq(&tconn->data.work.q_lock);
--
1.7.4.1


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