apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

drbd: Local variable renames: e -> peer_req

Browse Source 
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Andreas Gruenbacher
2011-02-04 15:57:48 +01:00
committed by Philipp Reisner
parent 6c852beca1
commit db830c464b
5 changed files with 258 additions and 251 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/block/drbd/drbd_int.h
+2 -2
View File
@@ -1701,9 +1701,9 @@ static inline int drbd_bio_has_active_page(struct bio *bio)
return 0;
}
static inline int drbd_ee_has_active_page(struct drbd_peer_request *e)
static inline int drbd_ee_has_active_page(struct drbd_peer_request *peer_req)
{
struct page *page = e->pages;
struct page *page = peer_req->pages;
page_chain_for_each(page) {
if (page_count(page) > 1)
return 1;
drivers/block/drbd/drbd_main.c
+20 -16
View File
@@ -2429,17 +2429,17 @@ int drbd_send_ack_rp(struct drbd_conf *mdev, enum drbd_packet cmd,
/**
* drbd_send_ack() - Sends an ack packet
* @mdev: DRBD device.
* @cmd: Packet command code.
* @e: Epoch entry.
* @mdev: DRBD device
* @cmd: packet command code
* @peer_req: peer request
*/
int drbd_send_ack(struct drbd_conf *mdev, enum drbd_packet cmd,
struct drbd_peer_request *e)
struct drbd_peer_request *peer_req)
{
return _drbd_send_ack(mdev, cmd,
cpu_to_be64(e->i.sector),
cpu_to_be32(e->i.size),
e->block_id);
cpu_to_be64(peer_req->i.sector),
cpu_to_be32(peer_req->i.size),
peer_req->block_id);
}
/* This function misuses the block_id field to signal if the blocks
@@ -2641,10 +2641,12 @@ static int _drbd_send_zc_bio(struct drbd_conf *mdev, struct bio *bio)
return 1;
}
static int _drbd_send_zc_ee(struct drbd_conf *mdev, struct drbd_peer_request *e)
static int _drbd_send_zc_ee(struct drbd_conf *mdev,
struct drbd_peer_request *peer_req)
{
struct page *page = e->pages;
unsigned len = e->i.size;
struct page *page = peer_req->pages;
unsigned len = peer_req->i.size;
/* hint all but last page with MSG_MORE */
page_chain_for_each(page) {
unsigned l = min_t(unsigned, len, PAGE_SIZE);
@@ -2747,7 +2749,7 @@ int drbd_send_dblock(struct drbd_conf *mdev, struct drbd_request *req)
* C_SYNC_SOURCE -> C_SYNC_TARGET (P_RS_DATA_REPLY)
*/
int drbd_send_block(struct drbd_conf *mdev, enum drbd_packet cmd,
struct drbd_peer_request *e)
struct drbd_peer_request *peer_req)
{
int ok;
struct p_data p;
@@ -2757,9 +2759,11 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packet cmd,
dgs = (mdev->tconn->agreed_pro_version >= 87 && mdev->tconn->integrity_w_tfm) ?
crypto_hash_digestsize(mdev->tconn->integrity_w_tfm) : 0;
prepare_header(mdev, &p.head, cmd, sizeof(p) - sizeof(struct p_header80) + dgs + e->i.size);
p.sector = cpu_to_be64(e->i.sector);
p.block_id = e->block_id;
prepare_header(mdev, &p.head, cmd, sizeof(p) -
sizeof(struct p_header80) +
dgs + peer_req->i.size);
p.sector = cpu_to_be64(peer_req->i.sector);
p.block_id = peer_req->block_id;
p.seq_num = 0; /* unused */
/* Only called by our kernel thread.
@@ -2772,11 +2776,11 @@ int drbd_send_block(struct drbd_conf *mdev, enum drbd_packet cmd,
ok = sizeof(p) == drbd_send(mdev, mdev->tconn->data.socket, &p, sizeof(p), dgs ? MSG_MORE : 0);
if (ok && dgs) {
dgb = mdev->tconn->int_dig_out;
drbd_csum_ee(mdev, mdev->tconn->integrity_w_tfm, e, dgb);
drbd_csum_ee(mdev, mdev->tconn->integrity_w_tfm, peer_req, dgb);
ok = dgs == drbd_send(mdev, mdev->tconn->data.socket, dgb, dgs, 0);
}
if (ok)
ok = _drbd_send_zc_ee(mdev, e);
ok = _drbd_send_zc_ee(mdev, peer_req);
drbd_put_data_sock(mdev);
drivers/block/drbd/drbd_nl.c
+10 -8
View File
@@ -2445,7 +2445,7 @@ void drbd_bcast_ev_helper(struct drbd_conf *mdev, char *helper_name)
void drbd_bcast_ee(struct drbd_conf *mdev, const char *reason, const int dgs,
const char *seen_hash, const char *calc_hash,
const struct drbd_peer_request *e)
const struct drbd_peer_request *peer_req)
{
struct cn_msg *cn_reply;
struct drbd_nl_cfg_reply *reply;
@@ -2453,7 +2453,7 @@ void drbd_bcast_ee(struct drbd_conf *mdev, const char *reason, const int dgs,
struct page *page;
unsigned len;
if (!e)
if (!peer_req)
return;
if (!reason || !reason[0])
return;
@@ -2472,8 +2472,10 @@ void drbd_bcast_ee(struct drbd_conf *mdev, const char *reason, const int dgs,
GFP_NOIO);
if (!cn_reply) {
dev_err(DEV, "could not kmalloc buffer for drbd_bcast_ee, sector %llu, size %u\n",
(unsigned long long)e->i.sector, e->i.size);
dev_err(DEV, "could not kmalloc buffer for drbd_bcast_ee, "
"sector %llu, size %u\n",
(unsigned long long)peer_req->i.sector,
peer_req->i.size);
return;
}
@@ -2483,15 +2485,15 @@ void drbd_bcast_ee(struct drbd_conf *mdev, const char *reason, const int dgs,
tl = tl_add_str(tl, T_dump_ee_reason, reason);
tl = tl_add_blob(tl, T_seen_digest, seen_hash, dgs);
tl = tl_add_blob(tl, T_calc_digest, calc_hash, dgs);
tl = tl_add_int(tl, T_ee_sector, &e->i.sector);
tl = tl_add_int(tl, T_ee_block_id, &e->block_id);
tl = tl_add_int(tl, T_ee_sector, &peer_req->i.sector);
tl = tl_add_int(tl, T_ee_block_id, &peer_req->block_id);
/* dump the first 32k */
len = min_t(unsigned, e->i.size, 32 << 10);
len = min_t(unsigned, peer_req->i.size, 32 << 10);
put_unaligned(T_ee_data, tl++);
put_unaligned(len, tl++);
page = e->pages;
page = peer_req->pages;
page_chain_for_each(page) {
void *d = kmap_atomic(page, KM_USER0);
unsigned l = min_t(unsigned, len, PAGE_SIZE);
drivers/block/drbd/drbd_receiver.c
+127 -127
View File
File diff suppressed because it is too large Load Diff
drivers/block/drbd/drbd_worker.c
+99 -98
View File
@@ -80,47 +80,47 @@ void drbd_md_io_complete(struct bio *bio, int error)
/* reads on behalf of the partner,
* "submitted" by the receiver
*/
void drbd_endio_read_sec_final(struct drbd_peer_request *e) __releases(local)
void drbd_endio_read_sec_final(struct drbd_peer_request *peer_req) __releases(local)
{
unsigned long flags = 0;
struct drbd_conf *mdev = e->mdev;
struct drbd_conf *mdev = peer_req->mdev;
spin_lock_irqsave(&mdev->tconn->req_lock, flags);
mdev->read_cnt += e->i.size >> 9;
list_del(&e->w.list);
mdev->read_cnt += peer_req->i.size >> 9;
list_del(&peer_req->w.list);
if (list_empty(&mdev->read_ee))
wake_up(&mdev->ee_wait);
if (test_bit(__EE_WAS_ERROR, &e->flags))
if (test_bit(__EE_WAS_ERROR, &peer_req->flags))
__drbd_chk_io_error(mdev, false);
spin_unlock_irqrestore(&mdev->tconn->req_lock, flags);
drbd_queue_work(&mdev->tconn->data.work, &e->w);
drbd_queue_work(&mdev->tconn->data.work, &peer_req->w);
put_ldev(mdev);
}
/* writes on behalf of the partner, or resync writes,
* "submitted" by the receiver, final stage. */
static void drbd_endio_write_sec_final(struct drbd_peer_request *e) __releases(local)
static void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req) __releases(local)
{
unsigned long flags = 0;
struct drbd_conf *mdev = e->mdev;
struct drbd_conf *mdev = peer_req->mdev;
sector_t e_sector;
int do_wake;
u64 block_id;
int do_al_complete_io;
/* after we moved e to done_ee,
/* after we moved peer_req to done_ee,
* we may no longer access it,
* it may be freed/reused already!
* (as soon as we release the req_lock) */
e_sector = e->i.sector;
do_al_complete_io = e->flags & EE_CALL_AL_COMPLETE_IO;
block_id = e->block_id;
e_sector = peer_req->i.sector;
do_al_complete_io = peer_req->flags & EE_CALL_AL_COMPLETE_IO;
block_id = peer_req->block_id;
spin_lock_irqsave(&mdev->tconn->req_lock, flags);
mdev->writ_cnt += e->i.size >> 9;
list_del(&e->w.list); /* has been on active_ee or sync_ee */
list_add_tail(&e->w.list, &mdev->done_ee);
mdev->writ_cnt += peer_req->i.size >> 9;
list_del(&peer_req->w.list); /* has been on active_ee or sync_ee */
list_add_tail(&peer_req->w.list, &mdev->done_ee);
/*
* Do not remove from the write_requests tree here: we did not send the
@@ -132,7 +132,7 @@ static void drbd_endio_write_sec_final(struct drbd_peer_request *e) __releases(l
do_wake = list_empty(block_id == ID_SYNCER ? &mdev->sync_ee : &mdev->active_ee);
if (test_bit(__EE_WAS_ERROR, &e->flags))
if (test_bit(__EE_WAS_ERROR, &peer_req->flags))
__drbd_chk_io_error(mdev, false);
spin_unlock_irqrestore(&mdev->tconn->req_lock, flags);
@@ -154,20 +154,20 @@ static void drbd_endio_write_sec_final(struct drbd_peer_request *e) __releases(l
*/
void drbd_endio_sec(struct bio *bio, int error)
{
struct drbd_peer_request *e = bio->bi_private;
struct drbd_conf *mdev = e->mdev;
struct drbd_peer_request *peer_req = bio->bi_private;
struct drbd_conf *mdev = peer_req->mdev;
int uptodate = bio_flagged(bio, BIO_UPTODATE);
int is_write = bio_data_dir(bio) == WRITE;
if (error && __ratelimit(&drbd_ratelimit_state))
dev_warn(DEV, "%s: error=%d s=%llus\n",
is_write ? "write" : "read", error,
(unsigned long long)e->i.sector);
(unsigned long long)peer_req->i.sector);
if (!error && !uptodate) {
if (__ratelimit(&drbd_ratelimit_state))
dev_warn(DEV, "%s: setting error to -EIO s=%llus\n",
is_write ? "write" : "read",
(unsigned long long)e->i.sector);
(unsigned long long)peer_req->i.sector);
/* strange behavior of some lower level drivers...
* fail the request by clearing the uptodate flag,
* but do not return any error?! */
@@ -175,14 +175,14 @@ void drbd_endio_sec(struct bio *bio, int error)
}
if (error)
set_bit(__EE_WAS_ERROR, &e->flags);
set_bit(__EE_WAS_ERROR, &peer_req->flags);
bio_put(bio); /* no need for the bio anymore */
if (atomic_dec_and_test(&e->pending_bios)) {
if (atomic_dec_and_test(&peer_req->pending_bios)) {
if (is_write)
drbd_endio_write_sec_final(e);
drbd_endio_write_sec_final(peer_req);
else
drbd_endio_read_sec_final(e);
drbd_endio_read_sec_final(peer_req);
}
}
@@ -248,11 +248,11 @@ int w_read_retry_remote(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
}
void drbd_csum_ee(struct drbd_conf *mdev, struct crypto_hash *tfm,
struct drbd_peer_request *e, void *digest)
struct drbd_peer_request *peer_req, void *digest)
{
struct hash_desc desc;
struct scatterlist sg;
struct page *page = e->pages;
struct page *page = peer_req->pages;
struct page *tmp;
unsigned len;
@@ -269,7 +269,7 @@ void drbd_csum_ee(struct drbd_conf *mdev, struct crypto_hash *tfm,
page = tmp;
}
/* and now the last, possibly only partially used page */
len = e->i.size & (PAGE_SIZE - 1);
len = peer_req->i.size & (PAGE_SIZE - 1);
sg_set_page(&sg, page, len ?: PAGE_SIZE, 0);
crypto_hash_update(&desc, &sg, sg.length);
crypto_hash_final(&desc, digest);
@@ -298,7 +298,8 @@ void drbd_csum_bio(struct drbd_conf *mdev, struct crypto_hash *tfm, struct bio *
/* 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)
{
struct drbd_peer_request *e = container_of(w, struct drbd_peer_request, w);
struct drbd_peer_request *peer_req =
container_of(w, struct drbd_peer_request, w);
int digest_size;
void *digest;
int ok = 1;
@@ -306,22 +307,22 @@ int w_e_send_csum(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
if (unlikely(cancel))
goto out;
if (likely((e->flags & EE_WAS_ERROR) != 0))
if (likely((peer_req->flags & EE_WAS_ERROR) != 0))
goto out;
digest_size = crypto_hash_digestsize(mdev->csums_tfm);
digest = kmalloc(digest_size, GFP_NOIO);
if (digest) {
sector_t sector = e->i.sector;
unsigned int size = e->i.size;
drbd_csum_ee(mdev, mdev->csums_tfm, e, digest);
sector_t sector = peer_req->i.sector;
unsigned int size = peer_req->i.size;
drbd_csum_ee(mdev, mdev->csums_tfm, peer_req, digest);
/* Free e and pages before send.
* In case we block on congestion, we could otherwise run into
* some distributed deadlock, if the other side blocks on
* congestion as well, because our receiver blocks in
* drbd_pp_alloc due to pp_in_use > max_buffers. */
drbd_free_ee(mdev, e);
e = NULL;
drbd_free_ee(mdev, peer_req);
peer_req = NULL;
inc_rs_pending(mdev);
ok = drbd_send_drequest_csum(mdev, sector, size,
digest, digest_size,
@@ -333,8 +334,8 @@ int w_e_send_csum(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
}
out:
if (e)
drbd_free_ee(mdev, e);
if (peer_req)
drbd_free_ee(mdev, peer_req);
if (unlikely(!ok))
dev_err(DEV, "drbd_send_drequest(..., csum) failed\n");
@@ -345,7 +346,7 @@ out:
static int read_for_csum(struct drbd_conf *mdev, sector_t sector, int size)
{
struct drbd_peer_request *e;
struct drbd_peer_request *peer_req;
if (!get_ldev(mdev))
return -EIO;
@@ -355,17 +356,17 @@ static int read_for_csum(struct drbd_conf *mdev, sector_t sector, int size)
/* GFP_TRY, because if there is no memory available right now, this may
* be rescheduled for later. It is "only" background resync, after all. */
e = drbd_alloc_ee(mdev, ID_SYNCER /* unused */, sector, size, GFP_TRY);
if (!e)
peer_req = drbd_alloc_ee(mdev, ID_SYNCER /* unused */, sector, size, GFP_TRY);
if (!peer_req)
goto defer;
e->w.cb = w_e_send_csum;
peer_req->w.cb = w_e_send_csum;
spin_lock_irq(&mdev->tconn->req_lock);
list_add(&e->w.list, &mdev->read_ee);
list_add(&peer_req->w.list, &mdev->read_ee);
spin_unlock_irq(&mdev->tconn->req_lock);
atomic_add(size >> 9, &mdev->rs_sect_ev);
if (drbd_submit_ee(mdev, e, READ, DRBD_FAULT_RS_RD) == 0)
if (drbd_submit_ee(mdev, peer_req, READ, DRBD_FAULT_RS_RD) == 0)
return 0;
/* If it failed because of ENOMEM, retry should help. If it failed
@@ -373,10 +374,10 @@ static int read_for_csum(struct drbd_conf *mdev, sector_t sector, int size)
* retry may or may not help.
* If it does not, you may need to force disconnect. */
spin_lock_irq(&mdev->tconn->req_lock);
list_del(&e->w.list);
list_del(&peer_req->w.list);
spin_unlock_irq(&mdev->tconn->req_lock);
drbd_free_ee(mdev, e);
drbd_free_ee(mdev, peer_req);
defer:
put_ldev(mdev);
return -EAGAIN;
@@ -901,19 +902,19 @@ out:
}
/* helper */
static void move_to_net_ee_or_free(struct drbd_conf *mdev, struct drbd_peer_request *e)
static void move_to_net_ee_or_free(struct drbd_conf *mdev, struct drbd_peer_request *peer_req)
{
if (drbd_ee_has_active_page(e)) {
if (drbd_ee_has_active_page(peer_req)) {
/* This might happen if sendpage() has not finished */
int i = (e->i.size + PAGE_SIZE -1) >> PAGE_SHIFT;
int i = (peer_req->i.size + PAGE_SIZE -1) >> PAGE_SHIFT;
atomic_add(i, &mdev->pp_in_use_by_net);
atomic_sub(i, &mdev->pp_in_use);
spin_lock_irq(&mdev->tconn->req_lock);
list_add_tail(&e->w.list, &mdev->net_ee);
list_add_tail(&peer_req->w.list, &mdev->net_ee);
spin_unlock_irq(&mdev->tconn->req_lock);
wake_up(&drbd_pp_wait);
} else
drbd_free_ee(mdev, e);
drbd_free_ee(mdev, peer_req);
}
/**
@@ -924,28 +925,28 @@ static void move_to_net_ee_or_free(struct drbd_conf *mdev, struct drbd_peer_requ
*/
int w_e_end_data_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
{
struct drbd_peer_request *e = container_of(w, struct drbd_peer_request, w);
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
int ok;
if (unlikely(cancel)) {
drbd_free_ee(mdev, e);
drbd_free_ee(mdev, peer_req);
dec_unacked(mdev);
return 1;
}
if (likely((e->flags & EE_WAS_ERROR) == 0)) {
ok = drbd_send_block(mdev, P_DATA_REPLY, e);
if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {
ok = drbd_send_block(mdev, P_DATA_REPLY, peer_req);
} else {
if (__ratelimit(&drbd_ratelimit_state))
dev_err(DEV, "Sending NegDReply. sector=%llus.\n",
(unsigned long long)e->i.sector);
(unsigned long long)peer_req->i.sector);
ok = drbd_send_ack(mdev, P_NEG_DREPLY, e);
ok = drbd_send_ack(mdev, P_NEG_DREPLY, peer_req);
}
dec_unacked(mdev);
move_to_net_ee_or_free(mdev, e);
move_to_net_ee_or_free(mdev, peer_req);
if (unlikely(!ok))
dev_err(DEV, "drbd_send_block() failed\n");
@@ -960,26 +961,26 @@ int w_e_end_data_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
*/
int w_e_end_rsdata_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
{
struct drbd_peer_request *e = container_of(w, struct drbd_peer_request, w);
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
int ok;
if (unlikely(cancel)) {
drbd_free_ee(mdev, e);
drbd_free_ee(mdev, peer_req);
dec_unacked(mdev);
return 1;
}
if (get_ldev_if_state(mdev, D_FAILED)) {
drbd_rs_complete_io(mdev, e->i.sector);
drbd_rs_complete_io(mdev, peer_req->i.sector);
put_ldev(mdev);
}
if (mdev->state.conn == C_AHEAD) {
ok = drbd_send_ack(mdev, P_RS_CANCEL, e);
} else if (likely((e->flags & EE_WAS_ERROR) == 0)) {
ok = drbd_send_ack(mdev, P_RS_CANCEL, peer_req);
} else if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {
if (likely(mdev->state.pdsk >= D_INCONSISTENT)) {
inc_rs_pending(mdev);
ok = drbd_send_block(mdev, P_RS_DATA_REPLY, e);
ok = drbd_send_block(mdev, P_RS_DATA_REPLY, peer_req);
} else {
if (__ratelimit(&drbd_ratelimit_state))
dev_err(DEV, "Not sending RSDataReply, "
@@ -989,17 +990,17 @@ int w_e_end_rsdata_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
} else {
if (__ratelimit(&drbd_ratelimit_state))
dev_err(DEV, "Sending NegRSDReply. sector %llus.\n",
(unsigned long long)e->i.sector);
(unsigned long long)peer_req->i.sector);
ok = drbd_send_ack(mdev, P_NEG_RS_DREPLY, e);
ok = drbd_send_ack(mdev, P_NEG_RS_DREPLY, peer_req);
/* update resync data with failure */
drbd_rs_failed_io(mdev, e->i.sector, e->i.size);
drbd_rs_failed_io(mdev, peer_req->i.sector, peer_req->i.size);
}
dec_unacked(mdev);
move_to_net_ee_or_free(mdev, e);
move_to_net_ee_or_free(mdev, peer_req);
if (unlikely(!ok))
dev_err(DEV, "drbd_send_block() failed\n");
@@ -1008,26 +1009,26 @@ int w_e_end_rsdata_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
int w_e_end_csum_rs_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
{
struct drbd_peer_request *e = container_of(w, struct drbd_peer_request, w);
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
struct digest_info *di;
int digest_size;
void *digest = NULL;
int ok, eq = 0;
if (unlikely(cancel)) {
drbd_free_ee(mdev, e);
drbd_free_ee(mdev, peer_req);
dec_unacked(mdev);
return 1;
}
if (get_ldev(mdev)) {
drbd_rs_complete_io(mdev, e->i.sector);
drbd_rs_complete_io(mdev, peer_req->i.sector);
put_ldev(mdev);
}
di = e->digest;
di = peer_req->digest;
if (likely((e->flags & EE_WAS_ERROR) == 0)) {
if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {
/* quick hack to try to avoid a race against reconfiguration.
* a real fix would be much more involved,
* introducing more locking mechanisms */
@@ -1037,31 +1038,31 @@ int w_e_end_csum_rs_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
digest = kmalloc(digest_size, GFP_NOIO);
}
if (digest) {
drbd_csum_ee(mdev, mdev->csums_tfm, e, digest);
drbd_csum_ee(mdev, mdev->csums_tfm, peer_req, digest);
eq = !memcmp(digest, di->digest, digest_size);
kfree(digest);
}
if (eq) {
drbd_set_in_sync(mdev, e->i.sector, e->i.size);
drbd_set_in_sync(mdev, peer_req->i.sector, peer_req->i.size);
/* rs_same_csums unit is BM_BLOCK_SIZE */
mdev->rs_same_csum += e->i.size >> BM_BLOCK_SHIFT;
ok = drbd_send_ack(mdev, P_RS_IS_IN_SYNC, e);
mdev->rs_same_csum += peer_req->i.size >> BM_BLOCK_SHIFT;
ok = drbd_send_ack(mdev, P_RS_IS_IN_SYNC, peer_req);
} else {
inc_rs_pending(mdev);
e->block_id = ID_SYNCER; /* By setting block_id, digest pointer becomes invalid! */
e->flags &= ~EE_HAS_DIGEST; /* This e no longer has a digest pointer */
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);
ok = drbd_send_block(mdev, P_RS_DATA_REPLY, e);
ok = drbd_send_block(mdev, P_RS_DATA_REPLY, peer_req);
}
} else {
ok = drbd_send_ack(mdev, P_NEG_RS_DREPLY, e);
ok = drbd_send_ack(mdev, P_NEG_RS_DREPLY, peer_req);
if (__ratelimit(&drbd_ratelimit_state))
dev_err(DEV, "Sending NegDReply. I guess it gets messy.\n");
}
dec_unacked(mdev);
move_to_net_ee_or_free(mdev, e);
move_to_net_ee_or_free(mdev, peer_req);
if (unlikely(!ok))
dev_err(DEV, "drbd_send_block/ack() failed\n");
@@ -1071,9 +1072,9 @@ int w_e_end_csum_rs_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
/* 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)
{
struct drbd_peer_request *e = container_of(w, struct drbd_peer_request, w);
sector_t sector = e->i.sector;
unsigned int size = e->i.size;
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
sector_t sector = peer_req->i.sector;
unsigned int size = peer_req->i.size;
int digest_size;
void *digest;
int ok = 1;
@@ -1088,8 +1089,8 @@ int w_e_end_ov_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
goto out;
}
if (likely(!(e->flags & EE_WAS_ERROR)))
drbd_csum_ee(mdev, mdev->verify_tfm, e, digest);
if (likely(!(peer_req->flags & EE_WAS_ERROR)))
drbd_csum_ee(mdev, mdev->verify_tfm, peer_req, digest);
else
memset(digest, 0, digest_size);
@@ -1098,8 +1099,8 @@ int w_e_end_ov_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
* some distributed deadlock, if the other side blocks on
* congestion as well, because our receiver blocks in
* drbd_pp_alloc due to pp_in_use > max_buffers. */
drbd_free_ee(mdev, e);
e = NULL;
drbd_free_ee(mdev, peer_req);
peer_req = NULL;
inc_rs_pending(mdev);
ok = drbd_send_drequest_csum(mdev, sector, size,
digest, digest_size,
@@ -1109,8 +1110,8 @@ int w_e_end_ov_req(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
kfree(digest);
out:
if (e)
drbd_free_ee(mdev, e);
if (peer_req)
drbd_free_ee(mdev, peer_req);
dec_unacked(mdev);
return ok;
}
@@ -1128,16 +1129,16 @@ void drbd_ov_oos_found(struct drbd_conf *mdev, sector_t sector, int size)
int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
{
struct drbd_peer_request *e = container_of(w, struct drbd_peer_request, w);
struct drbd_peer_request *peer_req = container_of(w, struct drbd_peer_request, w);
struct digest_info *di;
void *digest;
sector_t sector = e->i.sector;
unsigned int size = e->i.size;
sector_t sector = peer_req->i.sector;
unsigned int size = peer_req->i.size;
int digest_size;
int ok, eq = 0;
if (unlikely(cancel)) {
drbd_free_ee(mdev, e);
drbd_free_ee(mdev, peer_req);
dec_unacked(mdev);
return 1;
}
@@ -1145,17 +1146,17 @@ int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
/* after "cancel", because after drbd_disconnect/drbd_rs_cancel_all
* the resync lru has been cleaned up already */
if (get_ldev(mdev)) {
drbd_rs_complete_io(mdev, e->i.sector);
drbd_rs_complete_io(mdev, peer_req->i.sector);
put_ldev(mdev);
}
di = e->digest;
di = peer_req->digest;
if (likely((e->flags & EE_WAS_ERROR) == 0)) {
if (likely((peer_req->flags & EE_WAS_ERROR) == 0)) {
digest_size = crypto_hash_digestsize(mdev->verify_tfm);
digest = kmalloc(digest_size, GFP_NOIO);
if (digest) {
drbd_csum_ee(mdev, mdev->verify_tfm, e, digest);
drbd_csum_ee(mdev, mdev->verify_tfm, peer_req, digest);
D_ASSERT(digest_size == di->digest_size);
eq = !memcmp(digest, di->digest, digest_size);
@@ -1168,7 +1169,7 @@ int w_e_end_ov_reply(struct drbd_conf *mdev, struct drbd_work *w, int cancel)
* some distributed deadlock, if the other side blocks on
* congestion as well, because our receiver blocks in
* drbd_pp_alloc due to pp_in_use > max_buffers. */
drbd_free_ee(mdev, e);
drbd_free_ee(mdev, peer_req);
if (!eq)
drbd_ov_oos_found(mdev, sector, size);
else