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drbd: Pass a peer device to the resync and online verify functions

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Originally-from: Andreas Grünbacher <agruen@linbit.com>
Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Link: https://lore.kernel.org/r/20230330102744.2128122-2-christoph.boehmwalder@linbit.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Böhmwalder 2023-03-30 12:27:44 +02:00 committed by Jens Axboe
parent ad878a0d88
commit 0d11f3cf27
6 changed files with 126 additions and 108 deletions
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13
drivers/block/drbd/drbd_actlog.c
View File

@ -735,8 +735,9 @@ static bool update_rs_extent(struct drbd_device *device,
return false;
}
void drbd_advance_rs_marks(struct drbd_device *device, unsigned long still_to_go)
void drbd_advance_rs_marks(struct drbd_peer_device *peer_device, unsigned long still_to_go)
{
struct drbd_device *device = peer_device->device;
unsigned long now = jiffies;
unsigned long last = device->rs_mark_time[device->rs_last_mark];
int next = (device->rs_last_mark + 1) % DRBD_SYNC_MARKS;
@ -819,7 +820,7 @@ static int update_sync_bits(struct drbd_device *device,
if (mode == SET_IN_SYNC) {
unsigned long still_to_go = drbd_bm_total_weight(device);
bool rs_is_done = (still_to_go <= device->rs_failed);
drbd_advance_rs_marks(device, still_to_go);
drbd_advance_rs_marks(first_peer_device(device), still_to_go);
if (cleared || rs_is_done)
maybe_schedule_on_disk_bitmap_update(device, rs_is_done);
} else if (mode == RECORD_RS_FAILED)
@ -843,10 +844,11 @@ static bool plausible_request_size(int size)
* called by worker on C_SYNC_TARGET and receiver on SyncSource.
*
*/
int __drbd_change_sync(struct drbd_device *device, sector_t sector, int size,
int __drbd_change_sync(struct drbd_peer_device *peer_device, sector_t sector, int size,
enum update_sync_bits_mode mode)
{
/* Is called from worker and receiver context _only_ */
struct drbd_device *device = peer_device->device;
unsigned long sbnr, ebnr, lbnr;
unsigned long count = 0;
sector_t esector, nr_sectors;
@ -1009,14 +1011,15 @@ retry:
* tries to set it to BME_LOCKED. Returns 0 upon success, and -EAGAIN
* if there is still application IO going on in this area.
*/
int drbd_try_rs_begin_io(struct drbd_device *device, sector_t sector)
int drbd_try_rs_begin_io(struct drbd_peer_device *peer_device, sector_t sector)
{
struct drbd_device *device = peer_device->device;
unsigned int enr = BM_SECT_TO_EXT(sector);
const unsigned int al_enr = enr*AL_EXT_PER_BM_SECT;
struct lc_element *e;
struct bm_extent *bm_ext;
int i;
bool throttle = drbd_rs_should_slow_down(device, sector, true);
bool throttle = drbd_rs_should_slow_down(peer_device, sector, true);
/* If we need to throttle, a half-locked (only marked BME_NO_WRITES,
* not yet BME_LOCKED) extent needs to be kicked out explicitly if we

46
drivers/block/drbd/drbd_int.h
View File

@ -1433,21 +1433,24 @@ void drbd_resync_after_changed(struct drbd_device *device);
extern void drbd_start_resync(struct drbd_device *device, enum drbd_conns side);
extern void resume_next_sg(struct drbd_device *device);
extern void suspend_other_sg(struct drbd_device *device);
extern int drbd_resync_finished(struct drbd_device *device);
extern int drbd_resync_finished(struct drbd_peer_device *peer_device);
/* maybe rather drbd_main.c ? */
extern void *drbd_md_get_buffer(struct drbd_device *device, const char *intent);
extern void drbd_md_put_buffer(struct drbd_device *device);
extern int drbd_md_sync_page_io(struct drbd_device *device,
struct drbd_backing_dev *bdev, sector_t sector, enum req_op op);
extern void drbd_ov_out_of_sync_found(struct drbd_device *, sector_t, int);
extern void drbd_ov_out_of_sync_found(struct drbd_peer_device *peer_device,
sector_t sector, int size);
extern void wait_until_done_or_force_detached(struct drbd_device *device,
struct drbd_backing_dev *bdev, unsigned int *done);
extern void drbd_rs_controller_reset(struct drbd_device *device);
extern void drbd_rs_controller_reset(struct drbd_peer_device *peer_device);
static inline void ov_out_of_sync_print(struct drbd_device *device)
static inline void ov_out_of_sync_print(struct drbd_peer_device *peer_device)
{
struct drbd_device *device = peer_device->device;
if (device->ov_last_oos_size) {
drbd_err(device, "Out of sync: start=%llu, size=%lu (sectors)\n",
drbd_err(peer_device, "Out of sync: start=%llu, size=%lu (sectors)\n",
(unsigned long long)device->ov_last_oos_start,
(unsigned long)device->ov_last_oos_size);
}
@ -1486,7 +1489,7 @@ extern int drbd_ack_receiver(struct drbd_thread *thi);
extern void drbd_send_ping_wf(struct work_struct *ws);
extern void drbd_send_acks_wf(struct work_struct *ws);
extern bool drbd_rs_c_min_rate_throttle(struct drbd_device *device);
extern bool drbd_rs_should_slow_down(struct drbd_device *device, sector_t sector,
extern bool drbd_rs_should_slow_down(struct drbd_peer_device *peer_device, sector_t sector,
bool throttle_if_app_is_waiting);
extern int drbd_submit_peer_request(struct drbd_peer_request *peer_req);
extern int drbd_free_peer_reqs(struct drbd_device *, struct list_head *);
@ -1542,22 +1545,22 @@ extern void drbd_al_begin_io(struct drbd_device *device, struct drbd_interval *i
extern void drbd_al_complete_io(struct drbd_device *device, struct drbd_interval *i);
extern void drbd_rs_complete_io(struct drbd_device *device, sector_t sector);
extern int drbd_rs_begin_io(struct drbd_device *device, sector_t sector);
extern int drbd_try_rs_begin_io(struct drbd_device *device, sector_t sector);
extern int drbd_try_rs_begin_io(struct drbd_peer_device *peer_device, sector_t sector);
extern void drbd_rs_cancel_all(struct drbd_device *device);
extern int drbd_rs_del_all(struct drbd_device *device);
extern void drbd_rs_failed_io(struct drbd_device *device,
extern void drbd_rs_failed_io(struct drbd_peer_device *peer_device,
sector_t sector, int size);
extern void drbd_advance_rs_marks(struct drbd_device *device, unsigned long still_to_go);
extern void drbd_advance_rs_marks(struct drbd_peer_device *peer_device, unsigned long still_to_go);
enum update_sync_bits_mode { RECORD_RS_FAILED, SET_OUT_OF_SYNC, SET_IN_SYNC };
extern int __drbd_change_sync(struct drbd_device *device, sector_t sector, int size,
extern int __drbd_change_sync(struct drbd_peer_device *peer_device, sector_t sector, int size,
enum update_sync_bits_mode mode);
#define drbd_set_in_sync(device, sector, size) \
__drbd_change_sync(device, sector, size, SET_IN_SYNC)
#define drbd_set_out_of_sync(device, sector, size) \
__drbd_change_sync(device, sector, size, SET_OUT_OF_SYNC)
#define drbd_rs_failed_io(device, sector, size) \
__drbd_change_sync(device, sector, size, RECORD_RS_FAILED)
#define drbd_set_in_sync(peer_device, sector, size) \
__drbd_change_sync(peer_device, sector, size, SET_IN_SYNC)
#define drbd_set_out_of_sync(peer_device, sector, size) \
__drbd_change_sync(peer_device, sector, size, SET_OUT_OF_SYNC)
#define drbd_rs_failed_io(peer_device, sector, size) \
__drbd_change_sync(peer_device, sector, size, RECORD_RS_FAILED)
extern void drbd_al_shrink(struct drbd_device *device);
extern int drbd_al_initialize(struct drbd_device *, void *);
@ -1945,15 +1948,16 @@ static inline int __dec_ap_pending(struct drbd_device *device)
* C_SYNC_SOURCE sends P_RS_DATA_REPLY (and expects P_WRITE_ACK with ID_SYNCER)
* (or P_NEG_ACK with ID_SYNCER)
*/
static inline void inc_rs_pending(struct drbd_device *device)
static inline void inc_rs_pending(struct drbd_peer_device *peer_device)
{
atomic_inc(&device->rs_pending_cnt);
atomic_inc(&peer_device->device->rs_pending_cnt);
}
#define dec_rs_pending(device) ((void)expect((device), __dec_rs_pending(device) >= 0))
static inline int __dec_rs_pending(struct drbd_device *device)
#define dec_rs_pending(peer_device) \
((void)expect((peer_device), __dec_rs_pending(peer_device) >= 0))
static inline int __dec_rs_pending(struct drbd_peer_device *peer_device)
{
return atomic_dec_return(&device->rs_pending_cnt);
return atomic_dec_return(&peer_device->device->rs_pending_cnt);
}
/* counts how many answers we still need to send to the peer.

59
drivers/block/drbd/drbd_receiver.c
View File

@ -2044,11 +2044,11 @@ static int e_end_resync_block(struct drbd_work *w, int unused)
D_ASSERT(device, drbd_interval_empty(&peer_req->i));
if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {
drbd_set_in_sync(device, sector, peer_req->i.size);
drbd_set_in_sync(peer_device, sector, peer_req->i.size);
err = drbd_send_ack(peer_device, P_RS_WRITE_ACK, peer_req);
} else {
/* Record failure to sync */
drbd_rs_failed_io(device, sector, peer_req->i.size);
drbd_rs_failed_io(peer_device, sector, peer_req->i.size);
err = drbd_send_ack(peer_device, P_NEG_ACK, peer_req);
}
@ -2067,7 +2067,7 @@ static int recv_resync_read(struct drbd_peer_device *peer_device, sector_t secto
if (!peer_req)
goto fail;
dec_rs_pending(device);
dec_rs_pending(peer_device);
inc_unacked(device);
/* corresponding dec_unacked() in e_end_resync_block()
@ -2220,7 +2220,7 @@ static int e_end_block(struct drbd_work *w, int cancel)
P_RS_WRITE_ACK : P_WRITE_ACK;
err = drbd_send_ack(peer_device, pcmd, peer_req);
if (pcmd == P_RS_WRITE_ACK)
drbd_set_in_sync(device, sector, peer_req->i.size);
drbd_set_in_sync(peer_device, sector, peer_req->i.size);
} else {
err = drbd_send_ack(peer_device, P_NEG_ACK, peer_req);
/* we expect it to be marked out of sync anyways...
@ -2691,7 +2691,7 @@ static int receive_Data(struct drbd_connection *connection, struct packet_info *
if (device->state.pdsk < D_INCONSISTENT) {
/* In case we have the only disk of the cluster, */
drbd_set_out_of_sync(device, peer_req->i.sector, peer_req->i.size);
drbd_set_out_of_sync(peer_device, peer_req->i.sector, peer_req->i.size);
peer_req->flags &= ~EE_MAY_SET_IN_SYNC;
drbd_al_begin_io(device, &peer_req->i);
peer_req->flags |= EE_CALL_AL_COMPLETE_IO;
@ -2730,9 +2730,10 @@ out_interrupted:
* The current sync rate used here uses only the most recent two step marks,
* to have a short time average so we can react faster.
*/
bool drbd_rs_should_slow_down(struct drbd_device *device, sector_t sector,
bool drbd_rs_should_slow_down(struct drbd_peer_device *peer_device, sector_t sector,
bool throttle_if_app_is_waiting)
{
struct drbd_device *device = peer_device->device;
struct lc_element *tmp;
bool throttle = drbd_rs_c_min_rate_throttle(device);
@ -2844,7 +2845,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
break;
case P_OV_REPLY:
verb = 0;
dec_rs_pending(device);
dec_rs_pending(peer_device);
drbd_send_ack_ex(peer_device, P_OV_RESULT, sector, size, ID_IN_SYNC);
break;
default:
@ -2915,7 +2916,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
/* track progress, we may need to throttle */
atomic_add(size >> 9, &device->rs_sect_in);
peer_req->w.cb = w_e_end_ov_reply;
dec_rs_pending(device);
dec_rs_pending(peer_device);
/* drbd_rs_begin_io done when we sent this request,
* but accounting still needs to be done. */
goto submit_for_resync;
@ -2978,7 +2979,7 @@ static int receive_DataRequest(struct drbd_connection *connection, struct packet
update_receiver_timing_details(connection, drbd_rs_should_slow_down);
if (device->state.peer != R_PRIMARY
&& drbd_rs_should_slow_down(device, sector, false))
&& drbd_rs_should_slow_down(peer_device, sector, false))
schedule_timeout_uninterruptible(HZ/10);
update_receiver_timing_details(connection, drbd_rs_begin_io);
if (drbd_rs_begin_io(device, sector))
@ -4450,7 +4451,7 @@ static int receive_state(struct drbd_connection *connection, struct packet_info
else if (os.conn >= C_SYNC_SOURCE &&
peer_state.conn == C_CONNECTED) {
if (drbd_bm_total_weight(device) <= device->rs_failed)
drbd_resync_finished(device);
drbd_resync_finished(peer_device);
return 0;
}
}
@ -4458,8 +4459,8 @@ static int receive_state(struct drbd_connection *connection, struct packet_info
/* explicit verify finished notification, stop sector reached. */
if (os.conn == C_VERIFY_T && os.disk == D_UP_TO_DATE &&
peer_state.conn == C_CONNECTED && real_peer_disk == D_UP_TO_DATE) {
ov_out_of_sync_print(device);
drbd_resync_finished(device);
ov_out_of_sync_print(peer_device);
drbd_resync_finished(peer_device);
return 0;
}
@ -4937,7 +4938,7 @@ static int receive_out_of_sync(struct drbd_connection *connection, struct packet
drbd_conn_str(device->state.conn));
}
drbd_set_out_of_sync(device, be64_to_cpu(p->sector), be32_to_cpu(p->blksize));
drbd_set_out_of_sync(peer_device, be64_to_cpu(p->sector), be32_to_cpu(p->blksize));
return 0;
}
@ -4958,7 +4959,7 @@ static int receive_rs_deallocated(struct drbd_connection *connection, struct pac
sector = be64_to_cpu(p->sector);
size = be32_to_cpu(p->blksize);
dec_rs_pending(device);
dec_rs_pending(peer_device);
if (get_ldev(device)) {
struct drbd_peer_request *peer_req;
@ -5650,12 +5651,12 @@ static int got_IsInSync(struct drbd_connection *connection, struct packet_info *
if (get_ldev(device)) {
drbd_rs_complete_io(device, sector);
drbd_set_in_sync(device, sector, blksize);
drbd_set_in_sync(peer_device, sector, blksize);
/* rs_same_csums is supposed to count in units of BM_BLOCK_SIZE */
device->rs_same_csum += (blksize >> BM_BLOCK_SHIFT);
put_ldev(device);
}
dec_rs_pending(device);
dec_rs_pending(peer_device);
atomic_add(blksize >> 9, &device->rs_sect_in);
return 0;
@ -5701,8 +5702,8 @@ static int got_BlockAck(struct drbd_connection *connection, struct packet_info *
update_peer_seq(peer_device, be32_to_cpu(p->seq_num));
if (p->block_id == ID_SYNCER) {
drbd_set_in_sync(device, sector, blksize);
dec_rs_pending(device);
drbd_set_in_sync(peer_device, sector, blksize);
dec_rs_pending(peer_device);
return 0;
}
switch (pi->cmd) {
@ -5747,8 +5748,8 @@ static int got_NegAck(struct drbd_connection *connection, struct packet_info *pi
update_peer_seq(peer_device, be32_to_cpu(p->seq_num));
if (p->block_id == ID_SYNCER) {
dec_rs_pending(device);
drbd_rs_failed_io(device, sector, size);
dec_rs_pending(peer_device);
drbd_rs_failed_io(peer_device, sector, size);
return 0;
}
@ -5761,7 +5762,7 @@ static int got_NegAck(struct drbd_connection *connection, struct packet_info *pi
request is no longer in the collision hash. */
/* In Protocol B we might already have got a P_RECV_ACK
but then get a P_NEG_ACK afterwards. */
drbd_set_out_of_sync(device, sector, size);
drbd_set_out_of_sync(peer_device, sector, size);
}
return 0;
}
@ -5806,13 +5807,13 @@ static int got_NegRSDReply(struct drbd_connection *connection, struct packet_inf
update_peer_seq(peer_device, be32_to_cpu(p->seq_num));
dec_rs_pending(device);
dec_rs_pending(peer_device);
if (get_ldev_if_state(device, D_FAILED)) {
drbd_rs_complete_io(device, sector);
switch (pi->cmd) {
case P_NEG_RS_DREPLY:
drbd_rs_failed_io(device, sector, size);
drbd_rs_failed_io(peer_device, sector, size);
break;
case P_RS_CANCEL:
break;
@ -5869,21 +5870,21 @@ static int got_OVResult(struct drbd_connection *connection, struct packet_info *
update_peer_seq(peer_device, be32_to_cpu(p->seq_num));
if (be64_to_cpu(p->block_id) == ID_OUT_OF_SYNC)
drbd_ov_out_of_sync_found(device, sector, size);
drbd_ov_out_of_sync_found(peer_device, sector, size);
else
ov_out_of_sync_print(device);
ov_out_of_sync_print(peer_device);
if (!get_ldev(device))
return 0;
drbd_rs_complete_io(device, sector);
dec_rs_pending(device);
dec_rs_pending(peer_device);
--device->ov_left;
/* let's advance progress step marks only for every other megabyte */
if ((device->ov_left & 0x200) == 0x200)
drbd_advance_rs_marks(device, device->ov_left);
drbd_advance_rs_marks(peer_device, device->ov_left);
if (device->ov_left == 0) {
dw = kmalloc(sizeof(*dw), GFP_NOIO);
@ -5893,8 +5894,8 @@ static int got_OVResult(struct drbd_connection *connection, struct packet_info *
drbd_queue_work(&peer_device->connection->sender_work, &dw->w);
} else {
drbd_err(device, "kmalloc(dw) failed.");
ov_out_of_sync_print(device);
drbd_resync_finished(device);
ov_out_of_sync_print(peer_device);
drbd_resync_finished(peer_device);
}
}
put_ldev(device);

9
drivers/block/drbd/drbd_req.c
View File

@ -122,12 +122,13 @@ void drbd_req_destroy(struct kref *kref)
* before it even was submitted or sent.
* In that case we do not want to touch the bitmap at all.
*/
struct drbd_peer_device *peer_device = first_peer_device(device);
if ((s & (RQ_POSTPONED|RQ_LOCAL_MASK|RQ_NET_MASK)) != RQ_POSTPONED) {
if (!(s & RQ_NET_OK) || !(s & RQ_LOCAL_OK))
drbd_set_out_of_sync(device, req->i.sector, req->i.size);
drbd_set_out_of_sync(peer_device, req->i.sector, req->i.size);
if ((s & RQ_NET_OK) && (s & RQ_LOCAL_OK) && (s & RQ_NET_SIS))
drbd_set_in_sync(device, req->i.sector, req->i.size);
drbd_set_in_sync(peer_device, req->i.sector, req->i.size);
}
/* one might be tempted to move the drbd_al_complete_io
@ -620,7 +621,7 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what,
break;
case READ_COMPLETED_WITH_ERROR:
drbd_set_out_of_sync(device, req->i.sector, req->i.size);
drbd_set_out_of_sync(peer_device, req->i.sector, req->i.size);
drbd_report_io_error(device, req);
__drbd_chk_io_error(device, DRBD_READ_ERROR);
fallthrough;
@ -1131,7 +1132,7 @@ static int drbd_process_write_request(struct drbd_request *req)
if (remote) {
_req_mod(req, TO_BE_SENT, peer_device);
_req_mod(req, QUEUE_FOR_NET_WRITE, peer_device);
} else if (drbd_set_out_of_sync(device, req->i.sector, req->i.size))
} else if (drbd_set_out_of_sync(peer_device, req->i.sector, req->i.size))
_req_mod(req, QUEUE_FOR_SEND_OOS, peer_device);
return remote;

10
drivers/block/drbd/drbd_state.c
View File

@ -1222,9 +1222,11 @@ void drbd_resume_al(struct drbd_device *device)
}
/* helper for _drbd_set_state */
static void set_ov_position(struct drbd_device *device, enum drbd_conns cs)
static void set_ov_position(struct drbd_peer_device *peer_device, enum drbd_conns cs)
{
if (first_peer_device(device)->connection->agreed_pro_version < 90)
struct drbd_device *device = peer_device->device;
if (peer_device->connection->agreed_pro_version < 90)
device->ov_start_sector = 0;
device->rs_total = drbd_bm_bits(device);
device->ov_position = 0;
@ -1387,7 +1389,7 @@ _drbd_set_state(struct drbd_device *device, union drbd_state ns,
unsigned long now = jiffies;
int i;
set_ov_position(device, ns.conn);
set_ov_position(peer_device, ns.conn);
device->rs_start = now;
device->rs_last_sect_ev = 0;
device->ov_last_oos_size = 0;
@ -1398,7 +1400,7 @@ _drbd_set_state(struct drbd_device *device, union drbd_state ns,
device->rs_mark_time[i] = now;
}
drbd_rs_controller_reset(device);
drbd_rs_controller_reset(peer_device);
if (ns.conn == C_VERIFY_S) {
drbd_info(device, "Starting Online Verify from sector %llu\n",

97
drivers/block/drbd/drbd_worker.c
View File

@ -28,8 +28,8 @@
#include "drbd_protocol.h"
#include "drbd_req.h"
static int make_ov_request(struct drbd_device *, int);
static int make_resync_request(struct drbd_device *, int);
static int make_ov_request(struct drbd_peer_device *, int);
static int make_resync_request(struct drbd_peer_device *, int);
/* endio handlers:
* drbd_md_endio (defined here)
@ -124,7 +124,7 @@ void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __releases(l
* In case of a write error, send the neg ack anyways. */
if (!__test_and_set_bit(__EE_SEND_WRITE_ACK, &peer_req->flags))
inc_unacked(device);
drbd_set_out_of_sync(device, peer_req->i.sector, peer_req->i.size);
drbd_set_out_of_sync(peer_device, peer_req->i.sector, peer_req->i.size);
}
spin_lock_irqsave(&device->resource->req_lock, flags);
@ -363,7 +363,7 @@ static int w_e_send_csum(struct drbd_work *w, int cancel)
* drbd_alloc_pages due to pp_in_use > max_buffers. */
drbd_free_peer_req(device, peer_req);
peer_req = NULL;
inc_rs_pending(device);
inc_rs_pending(peer_device);
err = drbd_send_drequest_csum(peer_device, sector, size,
digest, digest_size,
P_CSUM_RS_REQUEST);
@ -430,10 +430,10 @@ int w_resync_timer(struct drbd_work *w, int cancel)
switch (device->state.conn) {
case C_VERIFY_S:
make_ov_request(device, cancel);
make_ov_request(first_peer_device(device), cancel);
break;
case C_SYNC_TARGET:
make_resync_request(device, cancel);
make_resync_request(first_peer_device(device), cancel);
break;
}
@ -493,8 +493,9 @@ struct fifo_buffer *fifo_alloc(unsigned int fifo_size)
return fb;
}
static int drbd_rs_controller(struct drbd_device *device, unsigned int sect_in)
static int drbd_rs_controller(struct drbd_peer_device *peer_device, unsigned int sect_in)
{
struct drbd_device *device = peer_device->device;
struct disk_conf *dc;
unsigned int want; /* The number of sectors we want in-flight */
int req_sect; /* Number of sectors to request in this turn */
@ -545,8 +546,9 @@ static int drbd_rs_controller(struct drbd_device *device, unsigned int sect_in)
return req_sect;
}
static int drbd_rs_number_requests(struct drbd_device *device)
static int drbd_rs_number_requests(struct drbd_peer_device *peer_device)
{
struct drbd_device *device = peer_device->device;
unsigned int sect_in; /* Number of sectors that came in since the last turn */
int number, mxb;
@ -556,7 +558,7 @@ static int drbd_rs_number_requests(struct drbd_device *device)
rcu_read_lock();
mxb = drbd_get_max_buffers(device) / 2;
if (rcu_dereference(device->rs_plan_s)->size) {
number = drbd_rs_controller(device, sect_in) >> (BM_BLOCK_SHIFT - 9);
number = drbd_rs_controller(peer_device, sect_in) >> (BM_BLOCK_SHIFT - 9);
device->c_sync_rate = number * HZ * (BM_BLOCK_SIZE / 1024) / SLEEP_TIME;
} else {
device->c_sync_rate = rcu_dereference(device->ldev->disk_conf)->resync_rate;
@ -580,9 +582,9 @@ static int drbd_rs_number_requests(struct drbd_device *device)
return number;
}
static int make_resync_request(struct drbd_device *const device, int cancel)
static int make_resync_request(struct drbd_peer_device *const peer_device, int cancel)
{
struct drbd_peer_device *const peer_device = first_peer_device(device);
struct drbd_device *const device = peer_device->device;
struct drbd_connection *const connection = peer_device ? peer_device->connection : NULL;
unsigned long bit;
sector_t sector;
@ -598,7 +600,7 @@ static int make_resync_request(struct drbd_device *const device, int cancel)
if (device->rs_total == 0) {
/* empty resync? */
drbd_resync_finished(device);
drbd_resync_finished(peer_device);
return 0;
}
@ -618,7 +620,7 @@ static int make_resync_request(struct drbd_device *const device, int cancel)
}
max_bio_size = queue_max_hw_sectors(device->rq_queue) << 9;
number = drbd_rs_number_requests(device);
number = drbd_rs_number_requests(peer_device);
if (number <= 0)
goto requeue;
@ -653,7 +655,7 @@ next_sector:
sector = BM_BIT_TO_SECT(bit);
if (drbd_try_rs_begin_io(device, sector)) {
if (drbd_try_rs_begin_io(peer_device, sector)) {
device->bm_resync_fo = bit;
goto requeue;
}
@ -729,13 +731,13 @@ next_sector:
} else {
int err;
inc_rs_pending(device);
inc_rs_pending(peer_device);
err = drbd_send_drequest(peer_device,
size == discard_granularity ? P_RS_THIN_REQ : P_RS_DATA_REQUEST,
sector, size, ID_SYNCER);
if (err) {
drbd_err(device, "drbd_send_drequest() failed, aborting...\n");
dec_rs_pending(device);
dec_rs_pending(peer_device);
put_ldev(device);
return err;
}
@ -760,8 +762,9 @@ next_sector:
return 0;
}
static int make_ov_request(struct drbd_device *device, int cancel)
static int make_ov_request(struct drbd_peer_device *peer_device, int cancel)
{
struct drbd_device *device = peer_device->device;
int number, i, size;
sector_t sector;
const sector_t capacity = get_capacity(device->vdisk);
@ -770,7 +773,7 @@ static int make_ov_request(struct drbd_device *device, int cancel)
if (unlikely(cancel))
return 1;
number = drbd_rs_number_requests(device);
number = drbd_rs_number_requests(peer_device);
sector = device->ov_position;
for (i = 0; i < number; i++) {
@ -788,7 +791,7 @@ static int make_ov_request(struct drbd_device *device, int cancel)
size = BM_BLOCK_SIZE;
if (drbd_try_rs_begin_io(device, sector)) {
if (drbd_try_rs_begin_io(peer_device, sector)) {
device->ov_position = sector;
goto requeue;
}
@ -796,9 +799,9 @@ static int make_ov_request(struct drbd_device *device, int cancel)
if (sector + (size>>9) > capacity)
size = (capacity-sector)<<9;
inc_rs_pending(device);
inc_rs_pending(peer_device);
if (drbd_send_ov_request(first_peer_device(device), sector, size)) {
dec_rs_pending(device);
dec_rs_pending(peer_device);
return 0;
}
sector += BM_SECT_PER_BIT;
@ -818,8 +821,8 @@ int w_ov_finished(struct drbd_work *w, int cancel)
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);
ov_out_of_sync_print(first_peer_device(device));
drbd_resync_finished(first_peer_device(device));
return 0;
}
@ -831,7 +834,7 @@ static int w_resync_finished(struct drbd_work *w, int cancel)
struct drbd_device *device = dw->device;
kfree(dw);
drbd_resync_finished(device);
drbd_resync_finished(first_peer_device(device));
return 0;
}
@ -846,9 +849,10 @@ static void ping_peer(struct drbd_device *device)
test_bit(GOT_PING_ACK, &connection->flags) || device->state.conn < C_CONNECTED);
}
int drbd_resync_finished(struct drbd_device *device)
int drbd_resync_finished(struct drbd_peer_device *peer_device)
{
struct drbd_connection *connection = first_peer_device(device)->connection;
struct drbd_device *device = peer_device->device;
struct drbd_connection *connection = peer_device->connection;
unsigned long db, dt, dbdt;
unsigned long n_oos;
union drbd_state os, ns;
@ -1129,7 +1133,7 @@ int w_e_end_rsdata_req(struct drbd_work *w, int cancel)
err = drbd_send_ack(peer_device, P_RS_CANCEL, peer_req);
} else if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {
if (likely(device->state.pdsk >= D_INCONSISTENT)) {
inc_rs_pending(device);
inc_rs_pending(peer_device);
if (peer_req->flags & EE_RS_THIN_REQ && all_zero(peer_req))
err = drbd_send_rs_deallocated(peer_device, peer_req);
else
@ -1148,7 +1152,7 @@ int w_e_end_rsdata_req(struct drbd_work *w, int cancel)
err = drbd_send_ack(peer_device, P_NEG_RS_DREPLY, peer_req);
/* update resync data with failure */
drbd_rs_failed_io(device, peer_req->i.sector, peer_req->i.size);
drbd_rs_failed_io(peer_device, peer_req->i.sector, peer_req->i.size);
}
dec_unacked(device);
@ -1199,12 +1203,12 @@ int w_e_end_csum_rs_req(struct drbd_work *w, int cancel)
}
if (eq) {
drbd_set_in_sync(device, peer_req->i.sector, peer_req->i.size);
drbd_set_in_sync(peer_device, peer_req->i.sector, peer_req->i.size);
/* rs_same_csums unit is BM_BLOCK_SIZE */
device->rs_same_csum += peer_req->i.size >> BM_BLOCK_SHIFT;
err = drbd_send_ack(peer_device, P_RS_IS_IN_SYNC, peer_req);
} else {
inc_rs_pending(device);
inc_rs_pending(peer_device);
peer_req->block_id = ID_SYNCER; /* By setting block_id, digest pointer becomes invalid! */
peer_req->flags &= ~EE_HAS_DIGEST; /* This peer request no longer has a digest pointer */
kfree(di);
@ -1257,10 +1261,10 @@ int w_e_end_ov_req(struct drbd_work *w, int cancel)
* drbd_alloc_pages due to pp_in_use > max_buffers. */
drbd_free_peer_req(device, peer_req);
peer_req = NULL;
inc_rs_pending(device);
inc_rs_pending(peer_device);
err = drbd_send_drequest_csum(peer_device, sector, size, digest, digest_size, P_OV_REPLY);
if (err)
dec_rs_pending(device);
dec_rs_pending(peer_device);
kfree(digest);
out:
@ -1270,15 +1274,16 @@ out:
return err;
}
void drbd_ov_out_of_sync_found(struct drbd_device *device, sector_t sector, int size)
void drbd_ov_out_of_sync_found(struct drbd_peer_device *peer_device, sector_t sector, int size)
{
struct drbd_device *device = peer_device->device;
if (device->ov_last_oos_start + device->ov_last_oos_size == sector) {
device->ov_last_oos_size += size>>9;
} else {
device->ov_last_oos_start = sector;
device->ov_last_oos_size = size>>9;
}
drbd_set_out_of_sync(device, sector, size);
drbd_set_out_of_sync(peer_device, sector, size);
}
int w_e_end_ov_reply(struct drbd_work *w, int cancel)
@ -1328,9 +1333,9 @@ int w_e_end_ov_reply(struct drbd_work *w, int cancel)
* drbd_alloc_pages due to pp_in_use > max_buffers. */
drbd_free_peer_req(device, peer_req);
if (!eq)
drbd_ov_out_of_sync_found(device, sector, size);
drbd_ov_out_of_sync_found(peer_device, sector, size);
else
ov_out_of_sync_print(device);
ov_out_of_sync_print(peer_device);
err = drbd_send_ack_ex(peer_device, P_OV_RESULT, sector, size,
eq ? ID_IN_SYNC : ID_OUT_OF_SYNC);
@ -1341,14 +1346,14 @@ int w_e_end_ov_reply(struct drbd_work *w, int cancel)
/* let's advance progress step marks only for every other megabyte */
if ((device->ov_left & 0x200) == 0x200)
drbd_advance_rs_marks(device, device->ov_left);
drbd_advance_rs_marks(peer_device, device->ov_left);
stop_sector_reached = verify_can_do_stop_sector(device) &&
(sector + (size>>9)) >= device->ov_stop_sector;
if (device->ov_left == 0 || stop_sector_reached) {
ov_out_of_sync_print(device);
drbd_resync_finished(device);
ov_out_of_sync_print(peer_device);
drbd_resync_finished(peer_device);
}
return err;
@ -1668,8 +1673,9 @@ void drbd_resync_after_changed(struct drbd_device *device)
} while (changed);
}
void drbd_rs_controller_reset(struct drbd_device *device)
void drbd_rs_controller_reset(struct drbd_peer_device *peer_device)
{
struct drbd_device *device = peer_device->device;
struct gendisk *disk = device->ldev->backing_bdev->bd_disk;
struct fifo_buffer *plan;
@ -1891,10 +1897,10 @@ void drbd_start_resync(struct drbd_device *device, enum drbd_conns side)
rcu_read_unlock();
schedule_timeout_interruptible(timeo);
}
drbd_resync_finished(device);
drbd_resync_finished(peer_device);
}
drbd_rs_controller_reset(device);
drbd_rs_controller_reset(peer_device);
/* ns.conn may already be != device->state.conn,
* we may have been paused in between, or become paused until
* the timer triggers.
@ -1909,8 +1915,9 @@ out:
mutex_unlock(device->state_mutex);
}
static void update_on_disk_bitmap(struct drbd_device *device, bool resync_done)
static void update_on_disk_bitmap(struct drbd_peer_device *peer_device, bool resync_done)
{
struct drbd_device *device = peer_device->device;
struct sib_info sib = { .sib_reason = SIB_SYNC_PROGRESS, };
device->rs_last_bcast = jiffies;
@ -1919,7 +1926,7 @@ static void update_on_disk_bitmap(struct drbd_device *device, bool resync_done)
drbd_bm_write_lazy(device, 0);
if (resync_done && is_sync_state(device->state.conn))
drbd_resync_finished(device);
drbd_resync_finished(peer_device);
drbd_bcast_event(device, &sib);
/* update timestamp, in case it took a while to write out stuff */
@ -2018,7 +2025,7 @@ static void do_device_work(struct drbd_device *device, const unsigned long todo)
do_md_sync(device);
if (test_bit(RS_DONE, &todo) ||
test_bit(RS_PROGRESS, &todo))
update_on_disk_bitmap(device, test_bit(RS_DONE, &todo));
update_on_disk_bitmap(first_peer_device(device), test_bit(RS_DONE, &todo));
if (test_bit(GO_DISKLESS, &todo))
go_diskless(device);
if (test_bit(DESTROY_DISK, &todo))