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path: root/drivers/block/drbd
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-rw-r--r--drivers/block/drbd/drbd_bitmap.c2
-rw-r--r--drivers/block/drbd/drbd_main.c62
-rw-r--r--drivers/block/drbd/drbd_nl.c127
-rw-r--r--drivers/block/drbd/drbd_receiver.c28
-rw-r--r--drivers/block/drbd/drbd_req.c2
-rw-r--r--drivers/block/drbd/drbd_state.c3
-rw-r--r--drivers/block/drbd/drbd_worker.c2
7 files changed, 103 insertions, 123 deletions
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index df25eecf80af..9e060e49b3f8 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -683,7 +683,7 @@ int drbd_bm_resize(struct drbd_device *device, sector_t capacity, int set_new_bi
}
}
- want = ALIGN(words*sizeof(long), PAGE_SIZE) >> PAGE_SHIFT;
+ want = PFN_UP(words*sizeof(long));
have = b->bm_number_of_pages;
if (want == have) {
D_ASSERT(device, b->bm_pages != NULL);
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 4b0b25cc916e..2887350ae010 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -903,31 +903,6 @@ void drbd_gen_and_send_sync_uuid(struct drbd_peer_device *peer_device)
}
}
-/* communicated if (agreed_features & DRBD_FF_WSAME) */
-static void
-assign_p_sizes_qlim(struct drbd_device *device, struct p_sizes *p,
- struct request_queue *q)
-{
- if (q) {
- p->qlim->physical_block_size = cpu_to_be32(queue_physical_block_size(q));
- p->qlim->logical_block_size = cpu_to_be32(queue_logical_block_size(q));
- p->qlim->alignment_offset = cpu_to_be32(queue_alignment_offset(q));
- p->qlim->io_min = cpu_to_be32(queue_io_min(q));
- p->qlim->io_opt = cpu_to_be32(queue_io_opt(q));
- p->qlim->discard_enabled = blk_queue_discard(q);
- p->qlim->write_same_capable = 0;
- } else {
- q = device->rq_queue;
- p->qlim->physical_block_size = cpu_to_be32(queue_physical_block_size(q));
- p->qlim->logical_block_size = cpu_to_be32(queue_logical_block_size(q));
- p->qlim->alignment_offset = 0;
- p->qlim->io_min = cpu_to_be32(queue_io_min(q));
- p->qlim->io_opt = cpu_to_be32(queue_io_opt(q));
- p->qlim->discard_enabled = 0;
- p->qlim->write_same_capable = 0;
- }
-}
-
int drbd_send_sizes(struct drbd_peer_device *peer_device, int trigger_reply, enum dds_flags flags)
{
struct drbd_device *device = peer_device->device;
@@ -949,7 +924,9 @@ int drbd_send_sizes(struct drbd_peer_device *peer_device, int trigger_reply, enu
memset(p, 0, packet_size);
if (get_ldev_if_state(device, D_NEGOTIATING)) {
- struct request_queue *q = bdev_get_queue(device->ldev->backing_bdev);
+ struct block_device *bdev = device->ldev->backing_bdev;
+ struct request_queue *q = bdev_get_queue(bdev);
+
d_size = drbd_get_max_capacity(device->ldev);
rcu_read_lock();
u_size = rcu_dereference(device->ldev->disk_conf)->disk_size;
@@ -957,14 +934,32 @@ int drbd_send_sizes(struct drbd_peer_device *peer_device, int trigger_reply, enu
q_order_type = drbd_queue_order_type(device);
max_bio_size = queue_max_hw_sectors(q) << 9;
max_bio_size = min(max_bio_size, DRBD_MAX_BIO_SIZE);
- assign_p_sizes_qlim(device, p, q);
+ p->qlim->physical_block_size =
+ cpu_to_be32(bdev_physical_block_size(bdev));
+ p->qlim->logical_block_size =
+ cpu_to_be32(bdev_logical_block_size(bdev));
+ p->qlim->alignment_offset =
+ cpu_to_be32(bdev_alignment_offset(bdev));
+ p->qlim->io_min = cpu_to_be32(bdev_io_min(bdev));
+ p->qlim->io_opt = cpu_to_be32(bdev_io_opt(bdev));
+ p->qlim->discard_enabled = !!bdev_max_discard_sectors(bdev);
put_ldev(device);
} else {
+ struct request_queue *q = device->rq_queue;
+
+ p->qlim->physical_block_size =
+ cpu_to_be32(queue_physical_block_size(q));
+ p->qlim->logical_block_size =
+ cpu_to_be32(queue_logical_block_size(q));
+ p->qlim->alignment_offset = 0;
+ p->qlim->io_min = cpu_to_be32(queue_io_min(q));
+ p->qlim->io_opt = cpu_to_be32(queue_io_opt(q));
+ p->qlim->discard_enabled = 0;
+
d_size = 0;
u_size = 0;
q_order_type = QUEUE_ORDERED_NONE;
max_bio_size = DRBD_MAX_BIO_SIZE; /* ... multiple BIOs per peer_request */
- assign_p_sizes_qlim(device, p, NULL);
}
if (peer_device->connection->agreed_pro_version <= 94)
@@ -3586,9 +3581,8 @@ const char *cmdname(enum drbd_packet cmd)
* when we want to support more than
* one PRO_VERSION */
static const char *cmdnames[] = {
+
[P_DATA] = "Data",
- [P_WSAME] = "WriteSame",
- [P_TRIM] = "Trim",
[P_DATA_REPLY] = "DataReply",
[P_RS_DATA_REPLY] = "RSDataReply",
[P_BARRIER] = "Barrier",
@@ -3599,7 +3593,6 @@ const char *cmdname(enum drbd_packet cmd)
[P_DATA_REQUEST] = "DataRequest",
[P_RS_DATA_REQUEST] = "RSDataRequest",
[P_SYNC_PARAM] = "SyncParam",
- [P_SYNC_PARAM89] = "SyncParam89",
[P_PROTOCOL] = "ReportProtocol",
[P_UUIDS] = "ReportUUIDs",
[P_SIZES] = "ReportSizes",
@@ -3607,6 +3600,7 @@ const char *cmdname(enum drbd_packet cmd)
[P_SYNC_UUID] = "ReportSyncUUID",
[P_AUTH_CHALLENGE] = "AuthChallenge",
[P_AUTH_RESPONSE] = "AuthResponse",
+ [P_STATE_CHG_REQ] = "StateChgRequest",
[P_PING] = "Ping",
[P_PING_ACK] = "PingAck",
[P_RECV_ACK] = "RecvAck",
@@ -3617,23 +3611,25 @@ const char *cmdname(enum drbd_packet cmd)
[P_NEG_DREPLY] = "NegDReply",
[P_NEG_RS_DREPLY] = "NegRSDReply",
[P_BARRIER_ACK] = "BarrierAck",
- [P_STATE_CHG_REQ] = "StateChgRequest",
[P_STATE_CHG_REPLY] = "StateChgReply",
[P_OV_REQUEST] = "OVRequest",
[P_OV_REPLY] = "OVReply",
[P_OV_RESULT] = "OVResult",
[P_CSUM_RS_REQUEST] = "CsumRSRequest",
[P_RS_IS_IN_SYNC] = "CsumRSIsInSync",
+ [P_SYNC_PARAM89] = "SyncParam89",
[P_COMPRESSED_BITMAP] = "CBitmap",
[P_DELAY_PROBE] = "DelayProbe",
[P_OUT_OF_SYNC] = "OutOfSync",
- [P_RETRY_WRITE] = "RetryWrite",
[P_RS_CANCEL] = "RSCancel",
[P_CONN_ST_CHG_REQ] = "conn_st_chg_req",
[P_CONN_ST_CHG_REPLY] = "conn_st_chg_reply",
[P_PROTOCOL_UPDATE] = "protocol_update",
+ [P_TRIM] = "Trim",
[P_RS_THIN_REQ] = "rs_thin_req",
[P_RS_DEALLOCATED] = "rs_deallocated",
+ [P_WSAME] = "WriteSame",
+ [P_ZEROES] = "Zeroes",
/* enum drbd_packet, but not commands - obsoleted flags:
* P_MAY_IGNORE
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index b7216c186ba4..013d355a2033 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -770,6 +770,7 @@ int drbd_adm_set_role(struct sk_buff *skb, struct genl_info *info)
struct set_role_parms parms;
int err;
enum drbd_ret_code retcode;
+ enum drbd_state_rv rv;
retcode = drbd_adm_prepare(&adm_ctx, skb, info, DRBD_ADM_NEED_MINOR);
if (!adm_ctx.reply_skb)
@@ -790,14 +791,14 @@ int drbd_adm_set_role(struct sk_buff *skb, struct genl_info *info)
mutex_lock(&adm_ctx.resource->adm_mutex);
if (info->genlhdr->cmd == DRBD_ADM_PRIMARY)
- retcode = (enum drbd_ret_code)drbd_set_role(adm_ctx.device,
- R_PRIMARY, parms.assume_uptodate);
+ rv = drbd_set_role(adm_ctx.device, R_PRIMARY, parms.assume_uptodate);
else
- retcode = (enum drbd_ret_code)drbd_set_role(adm_ctx.device,
- R_SECONDARY, 0);
+ rv = drbd_set_role(adm_ctx.device, R_SECONDARY, 0);
mutex_unlock(&adm_ctx.resource->adm_mutex);
genl_lock();
+ drbd_adm_finish(&adm_ctx, info, rv);
+ return 0;
out:
drbd_adm_finish(&adm_ctx, info, retcode);
return 0;
@@ -1204,50 +1205,40 @@ static unsigned int drbd_max_discard_sectors(struct drbd_connection *connection)
}
static void decide_on_discard_support(struct drbd_device *device,
- struct request_queue *q,
- struct request_queue *b,
- bool discard_zeroes_if_aligned)
+ struct drbd_backing_dev *bdev)
{
- /* q = drbd device queue (device->rq_queue)
- * b = backing device queue (device->ldev->backing_bdev->bd_disk->queue),
- * or NULL if diskless
- */
- struct drbd_connection *connection = first_peer_device(device)->connection;
- bool can_do = b ? blk_queue_discard(b) : true;
-
- if (can_do && connection->cstate >= C_CONNECTED && !(connection->agreed_features & DRBD_FF_TRIM)) {
- can_do = false;
- drbd_info(connection, "peer DRBD too old, does not support TRIM: disabling discards\n");
- }
- if (can_do) {
- /* We don't care for the granularity, really.
- * Stacking limits below should fix it for the local
- * device. Whether or not it is a suitable granularity
- * on the remote device is not our problem, really. If
- * you care, you need to use devices with similar
- * topology on all peers. */
- blk_queue_discard_granularity(q, 512);
- q->limits.max_discard_sectors = drbd_max_discard_sectors(connection);
- blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
- q->limits.max_write_zeroes_sectors = drbd_max_discard_sectors(connection);
- } else {
- blk_queue_flag_clear(QUEUE_FLAG_DISCARD, q);
- blk_queue_discard_granularity(q, 0);
- q->limits.max_discard_sectors = 0;
- q->limits.max_write_zeroes_sectors = 0;
- }
-}
+ struct drbd_connection *connection =
+ first_peer_device(device)->connection;
+ struct request_queue *q = device->rq_queue;
-static void fixup_discard_if_not_supported(struct request_queue *q)
-{
- /* To avoid confusion, if this queue does not support discard, clear
- * max_discard_sectors, which is what lsblk -D reports to the user.
- * Older kernels got this wrong in "stack limits".
- * */
- if (!blk_queue_discard(q)) {
- blk_queue_max_discard_sectors(q, 0);
- blk_queue_discard_granularity(q, 0);
+ if (bdev && !bdev_max_discard_sectors(bdev->backing_bdev))
+ goto not_supported;
+
+ if (connection->cstate >= C_CONNECTED &&
+ !(connection->agreed_features & DRBD_FF_TRIM)) {
+ drbd_info(connection,
+ "peer DRBD too old, does not support TRIM: disabling discards\n");
+ goto not_supported;
}
+
+ /*
+ * We don't care for the granularity, really.
+ *
+ * Stacking limits below should fix it for the local device. Whether or
+ * not it is a suitable granularity on the remote device is not our
+ * problem, really. If you care, you need to use devices with similar
+ * topology on all peers.
+ */
+ blk_queue_discard_granularity(q, 512);
+ q->limits.max_discard_sectors = drbd_max_discard_sectors(connection);
+ q->limits.max_write_zeroes_sectors =
+ drbd_max_discard_sectors(connection);
+ return;
+
+not_supported:
+ blk_queue_discard_granularity(q, 0);
+ q->limits.max_discard_sectors = 0;
+ q->limits.max_write_zeroes_sectors = 0;
}
static void fixup_write_zeroes(struct drbd_device *device, struct request_queue *q)
@@ -1273,7 +1264,6 @@ static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backi
unsigned int max_segments = 0;
struct request_queue *b = NULL;
struct disk_conf *dc;
- bool discard_zeroes_if_aligned = true;
if (bdev) {
b = bdev->backing_bdev->bd_disk->queue;
@@ -1282,7 +1272,6 @@ static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backi
rcu_read_lock();
dc = rcu_dereference(device->ldev->disk_conf);
max_segments = dc->max_bio_bvecs;
- discard_zeroes_if_aligned = dc->discard_zeroes_if_aligned;
rcu_read_unlock();
blk_set_stacking_limits(&q->limits);
@@ -1292,13 +1281,12 @@ static void drbd_setup_queue_param(struct drbd_device *device, struct drbd_backi
/* This is the workaround for "bio would need to, but cannot, be split" */
blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS);
blk_queue_segment_boundary(q, PAGE_SIZE-1);
- decide_on_discard_support(device, q, b, discard_zeroes_if_aligned);
+ decide_on_discard_support(device, bdev);
if (b) {
blk_stack_limits(&q->limits, &b->limits, 0);
disk_update_readahead(device->vdisk);
}
- fixup_discard_if_not_supported(q);
fixup_write_zeroes(device, q);
}
@@ -1437,14 +1425,14 @@ static bool write_ordering_changed(struct disk_conf *a, struct disk_conf *b)
static void sanitize_disk_conf(struct drbd_device *device, struct disk_conf *disk_conf,
struct drbd_backing_dev *nbc)
{
- struct request_queue * const q = nbc->backing_bdev->bd_disk->queue;
+ struct block_device *bdev = nbc->backing_bdev;
if (disk_conf->al_extents < DRBD_AL_EXTENTS_MIN)
disk_conf->al_extents = DRBD_AL_EXTENTS_MIN;
if (disk_conf->al_extents > drbd_al_extents_max(nbc))
disk_conf->al_extents = drbd_al_extents_max(nbc);
- if (!blk_queue_discard(q)) {
+ if (!bdev_max_discard_sectors(bdev)) {
if (disk_conf->rs_discard_granularity) {
disk_conf->rs_discard_granularity = 0; /* disable feature */
drbd_info(device, "rs_discard_granularity feature disabled\n");
@@ -1453,16 +1441,19 @@ static void sanitize_disk_conf(struct drbd_device *device, struct disk_conf *dis
if (disk_conf->rs_discard_granularity) {
int orig_value = disk_conf->rs_discard_granularity;
+ sector_t discard_size = bdev_max_discard_sectors(bdev) << 9;
+ unsigned int discard_granularity = bdev_discard_granularity(bdev);
int remainder;
- if (q->limits.discard_granularity > disk_conf->rs_discard_granularity)
- disk_conf->rs_discard_granularity = q->limits.discard_granularity;
+ if (discard_granularity > disk_conf->rs_discard_granularity)
+ disk_conf->rs_discard_granularity = discard_granularity;
- remainder = disk_conf->rs_discard_granularity % q->limits.discard_granularity;
+ remainder = disk_conf->rs_discard_granularity %
+ discard_granularity;
disk_conf->rs_discard_granularity += remainder;
- if (disk_conf->rs_discard_granularity > q->limits.max_discard_sectors << 9)
- disk_conf->rs_discard_granularity = q->limits.max_discard_sectors << 9;
+ if (disk_conf->rs_discard_granularity > discard_size)
+ disk_conf->rs_discard_granularity = discard_size;
if (disk_conf->rs_discard_granularity != orig_value)
drbd_info(device, "rs_discard_granularity changed to %d\n",
@@ -1611,8 +1602,7 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
drbd_send_sync_param(peer_device);
}
- synchronize_rcu();
- kfree(old_disk_conf);
+ kvfree_rcu(old_disk_conf);
kfree(old_plan);
mod_timer(&device->request_timer, jiffies + HZ);
goto success;
@@ -2443,8 +2433,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
mutex_unlock(&connection->resource->conf_update);
mutex_unlock(&connection->data.mutex);
- synchronize_rcu();
- kfree(old_net_conf);
+ kvfree_rcu(old_net_conf);
if (connection->cstate >= C_WF_REPORT_PARAMS) {
struct drbd_peer_device *peer_device;
@@ -2502,6 +2491,7 @@ int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info)
struct drbd_resource *resource;
struct drbd_connection *connection;
enum drbd_ret_code retcode;
+ enum drbd_state_rv rv;
int i;
int err;
@@ -2621,12 +2611,11 @@ int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info)
}
rcu_read_unlock();
- retcode = (enum drbd_ret_code)conn_request_state(connection,
- NS(conn, C_UNCONNECTED), CS_VERBOSE);
+ rv = conn_request_state(connection, NS(conn, C_UNCONNECTED), CS_VERBOSE);
conn_reconfig_done(connection);
mutex_unlock(&adm_ctx.resource->adm_mutex);
- drbd_adm_finish(&adm_ctx, info, retcode);
+ drbd_adm_finish(&adm_ctx, info, rv);
return 0;
fail:
@@ -2734,11 +2723,12 @@ int drbd_adm_disconnect(struct sk_buff *skb, struct genl_info *info)
mutex_lock(&adm_ctx.resource->adm_mutex);
rv = conn_try_disconnect(connection, parms.force_disconnect);
- if (rv < SS_SUCCESS)
- retcode = (enum drbd_ret_code)rv;
- else
- retcode = NO_ERROR;
mutex_unlock(&adm_ctx.resource->adm_mutex);
+ if (rv < SS_SUCCESS) {
+ drbd_adm_finish(&adm_ctx, info, rv);
+ return 0;
+ }
+ retcode = NO_ERROR;
fail:
drbd_adm_finish(&adm_ctx, info, retcode);
return 0;
@@ -2857,8 +2847,7 @@ int drbd_adm_resize(struct sk_buff *skb, struct genl_info *info)
new_disk_conf->disk_size = (sector_t)rs.resize_size;
rcu_assign_pointer(device->ldev->disk_conf, new_disk_conf);
mutex_unlock(&device->resource->conf_update);
- synchronize_rcu();
- kfree(old_disk_conf);
+ kvfree_rcu(old_disk_conf);
new_disk_conf = NULL;
}
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 08da922f81d1..6762be53f409 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -364,7 +364,7 @@ drbd_alloc_peer_req(struct drbd_peer_device *peer_device, u64 id, sector_t secto
struct drbd_device *device = peer_device->device;
struct drbd_peer_request *peer_req;
struct page *page = NULL;
- unsigned nr_pages = (payload_size + PAGE_SIZE -1) >> PAGE_SHIFT;
+ unsigned int nr_pages = PFN_UP(payload_size);
if (drbd_insert_fault(device, DRBD_FAULT_AL_EE))
return NULL;
@@ -1511,7 +1511,6 @@ void drbd_bump_write_ordering(struct drbd_resource *resource, struct drbd_backin
int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, unsigned int nr_sectors, int flags)
{
struct block_device *bdev = device->ldev->backing_bdev;
- struct request_queue *q = bdev_get_queue(bdev);
sector_t tmp, nr;
unsigned int max_discard_sectors, granularity;
int alignment;
@@ -1521,10 +1520,10 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u
goto zero_out;
/* Zero-sector (unknown) and one-sector granularities are the same. */
- granularity = max(q->limits.discard_granularity >> 9, 1U);
+ granularity = max(bdev_discard_granularity(bdev) >> 9, 1U);
alignment = (bdev_discard_alignment(bdev) >> 9) % granularity;
- max_discard_sectors = min(q->limits.max_discard_sectors, (1U << 22));
+ max_discard_sectors = min(bdev_max_discard_sectors(bdev), (1U << 22));
max_discard_sectors -= max_discard_sectors % granularity;
if (unlikely(!max_discard_sectors))
goto zero_out;
@@ -1548,7 +1547,8 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u
start = tmp;
}
while (nr_sectors >= max_discard_sectors) {
- err |= blkdev_issue_discard(bdev, start, max_discard_sectors, GFP_NOIO, 0);
+ err |= blkdev_issue_discard(bdev, start, max_discard_sectors,
+ GFP_NOIO);
nr_sectors -= max_discard_sectors;
start += max_discard_sectors;
}
@@ -1560,7 +1560,7 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u
nr = nr_sectors;
nr -= (unsigned int)nr % granularity;
if (nr) {
- err |= blkdev_issue_discard(bdev, start, nr, GFP_NOIO, 0);
+ err |= blkdev_issue_discard(bdev, start, nr, GFP_NOIO);
nr_sectors -= nr;
start += nr;
}
@@ -1575,11 +1575,10 @@ int drbd_issue_discard_or_zero_out(struct drbd_device *device, sector_t start, u
static bool can_do_reliable_discards(struct drbd_device *device)
{
- struct request_queue *q = bdev_get_queue(device->ldev->backing_bdev);
struct disk_conf *dc;
bool can_do;
- if (!blk_queue_discard(q))
+ if (!bdev_max_discard_sectors(device->ldev->backing_bdev))
return false;
rcu_read_lock();
@@ -1629,9 +1628,9 @@ int drbd_submit_peer_request(struct drbd_device *device,
struct bio *bio;
struct page *page = peer_req->pages;
sector_t sector = peer_req->i.sector;
- unsigned data_size = peer_req->i.size;
- unsigned n_bios = 0;
- unsigned nr_pages = (data_size + PAGE_SIZE -1) >> PAGE_SHIFT;
+ unsigned int data_size = peer_req->i.size;
+ unsigned int n_bios = 0;
+ unsigned int nr_pages = PFN_UP(data_size);
/* TRIM/DISCARD: for now, always use the helper function
* blkdev_issue_zeroout(..., discard=true).
@@ -3751,8 +3750,7 @@ static int receive_protocol(struct drbd_connection *connection, struct packet_in
drbd_info(connection, "peer data-integrity-alg: %s\n",
integrity_alg[0] ? integrity_alg : "(none)");
- synchronize_rcu();
- kfree(old_net_conf);
+ kvfree_rcu(old_net_conf);
return 0;
disconnect_rcu_unlock:
@@ -3903,7 +3901,6 @@ static int receive_SyncParam(struct drbd_connection *connection, struct packet_i
drbd_err(device, "verify-alg of wrong size, "
"peer wants %u, accepting only up to %u byte\n",
data_size, SHARED_SECRET_MAX);
- err = -EIO;
goto reconnect;
}
@@ -4121,8 +4118,7 @@ static int receive_sizes(struct drbd_connection *connection, struct packet_info
rcu_assign_pointer(device->ldev->disk_conf, new_disk_conf);
mutex_unlock(&connection->resource->conf_update);
- synchronize_rcu();
- kfree(old_disk_conf);
+ kvfree_rcu(old_disk_conf);
drbd_info(device, "Peer sets u_size to %lu sectors (old: %lu)\n",
(unsigned long)p_usize, (unsigned long)my_usize);
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index 75be0e16770a..e64bcfba30ef 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -922,7 +922,7 @@ static bool remote_due_to_read_balancing(struct drbd_device *device, sector_t se
switch (rbm) {
case RB_CONGESTED_REMOTE:
- return 0;
+ return false;
case RB_LEAST_PENDING:
return atomic_read(&device->local_cnt) >
atomic_read(&device->ap_pending_cnt) + atomic_read(&device->rs_pending_cnt);
diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c
index 4ee11aef6672..3f7bf9f2d874 100644
--- a/drivers/block/drbd/drbd_state.c
+++ b/drivers/block/drbd/drbd_state.c
@@ -2071,8 +2071,7 @@ static int w_after_conn_state_ch(struct drbd_work *w, int unused)
conn_free_crypto(connection);
mutex_unlock(&connection->resource->conf_update);
- synchronize_rcu();
- kfree(old_conf);
+ kvfree_rcu(old_conf);
}
if (ns_max.susp_fen) {
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 0f9956f4e9c4..af3051dd8912 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1030,7 +1030,7 @@ static void move_to_net_ee_or_free(struct drbd_device *device, struct drbd_peer_
{
if (drbd_peer_req_has_active_page(peer_req)) {
/* This might happen if sendpage() has not finished */
- int i = (peer_req->i.size + PAGE_SIZE -1) >> PAGE_SHIFT;
+ int i = PFN_UP(peer_req->i.size);
atomic_add(i, &device->pp_in_use_by_net);
atomic_sub(i, &device->pp_in_use);
spin_lock_irq(&device->resource->req_lock);
generated by cgit v1.2.3 (git 2.39.0) at 2024-09-18 16:19:04 +0300