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authorLars Ellenberg <lars.ellenberg@linbit.com>2012-08-01 12:43:01 +0200
committerPhilipp Reisner <philipp.reisner@linbit.com>2012-11-09 14:05:49 +0100
commit427c0434fc52f15bd762ddc6611e874df6cc5b8d (patch)
tree5d83c132fd0809884f5199a48ec6bbb9c7690ece /drivers
parentd4dabbe22d38752674c582e5bb40716a72397355 (diff)
downloadvexpress-lsk-427c0434fc52f15bd762ddc6611e874df6cc5b8d.tar.gz
drbd: disambiguation, s/DISCARD_CONCURRENT/RESOLVE_CONFLICTS/
We don't discard anything here, really. We resolve conflicting, concurrent writes to overlapping data blocks. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/block/drbd/drbd_int.h2
-rw-r--r--drivers/block/drbd/drbd_nl.c2
-rw-r--r--drivers/block/drbd/drbd_receiver.c20
3 files changed, 12 insertions, 12 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 91b73247f65..813f50dbe5c 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -799,7 +799,7 @@ extern struct fifo_buffer *fifo_alloc(int fifo_size);
/* flag bits per tconn */
enum {
NET_CONGESTED, /* The data socket is congested */
- DISCARD_CONCURRENT, /* Set on one node, cleared on the peer! */
+ RESOLVE_CONFLICTS, /* Set on one node, cleared on the peer! */
SEND_PING, /* whether asender should send a ping asap */
SIGNAL_ASENDER, /* whether asender wants to be interrupted */
GOT_PING_ACK, /* set when we receive a ping_ack packet, ping_wait gets woken */
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 466d6b1d930..35bb572a207 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -2249,7 +2249,7 @@ void resync_after_online_grow(struct drbd_conf *mdev)
if (mdev->state.role != mdev->state.peer)
iass = (mdev->state.role == R_PRIMARY);
else
- iass = test_bit(DISCARD_CONCURRENT, &mdev->tconn->flags);
+ iass = test_bit(RESOLVE_CONFLICTS, &mdev->tconn->flags);
if (iass)
drbd_start_resync(mdev, C_SYNC_SOURCE);
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index afab66bbc31..99121076bf1 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -916,7 +916,7 @@ static int conn_connect(struct drbd_tconn *tconn)
sock.socket = s;
send_first_packet(tconn, &sock, P_INITIAL_DATA);
} else if (!msock.socket) {
- clear_bit(DISCARD_CONCURRENT, &tconn->flags);
+ clear_bit(RESOLVE_CONFLICTS, &tconn->flags);
msock.socket = s;
send_first_packet(tconn, &msock, P_INITIAL_META);
} else {
@@ -954,7 +954,7 @@ retry:
sock.socket = s;
break;
case P_INITIAL_META:
- set_bit(DISCARD_CONCURRENT, &tconn->flags);
+ set_bit(RESOLVE_CONFLICTS, &tconn->flags);
if (msock.socket) {
conn_warn(tconn, "initial packet M crossed\n");
sock_release(msock.socket);
@@ -1899,7 +1899,7 @@ static bool need_peer_seq(struct drbd_conf *mdev)
/*
* We only need to keep track of the last packet_seq number of our peer
- * if we are in dual-primary mode and we have the discard flag set; see
+ * if we are in dual-primary mode and we have the resolve-conflicts flag set; see
* handle_write_conflicts().
*/
@@ -1907,7 +1907,7 @@ static bool need_peer_seq(struct drbd_conf *mdev)
tp = rcu_dereference(mdev->tconn->net_conf)->two_primaries;
rcu_read_unlock();
- return tp && test_bit(DISCARD_CONCURRENT, &tconn->flags);
+ return tp && test_bit(RESOLVE_CONFLICTS, &tconn->flags);
}
static void update_peer_seq(struct drbd_conf *mdev, unsigned int peer_seq)
@@ -2048,7 +2048,7 @@ static int handle_write_conflicts(struct drbd_conf *mdev,
struct drbd_peer_request *peer_req)
{
struct drbd_tconn *tconn = mdev->tconn;
- bool resolve_conflicts = test_bit(DISCARD_CONCURRENT, &tconn->flags);
+ bool resolve_conflicts = test_bit(RESOLVE_CONFLICTS, &tconn->flags);
sector_t sector = peer_req->i.sector;
const unsigned int size = peer_req->i.size;
struct drbd_interval *i;
@@ -2600,7 +2600,7 @@ static int drbd_asb_recover_0p(struct drbd_conf *mdev) __must_hold(local)
"Using discard-least-changes instead\n");
case ASB_DISCARD_ZERO_CHG:
if (ch_peer == 0 && ch_self == 0) {
- rv = test_bit(DISCARD_CONCURRENT, &mdev->tconn->flags)
+ rv = test_bit(RESOLVE_CONFLICTS, &mdev->tconn->flags)
? -1 : 1;
break;
} else {
@@ -2616,7 +2616,7 @@ static int drbd_asb_recover_0p(struct drbd_conf *mdev) __must_hold(local)
rv = 1;
else /* ( ch_self == ch_peer ) */
/* Well, then use something else. */
- rv = test_bit(DISCARD_CONCURRENT, &mdev->tconn->flags)
+ rv = test_bit(RESOLVE_CONFLICTS, &mdev->tconn->flags)
? -1 : 1;
break;
case ASB_DISCARD_LOCAL:
@@ -2839,7 +2839,7 @@ static int drbd_uuid_compare(struct drbd_conf *mdev, int *rule_nr) __must_hold(l
case 1: /* self_pri && !peer_pri */ return 1;
case 2: /* !self_pri && peer_pri */ return -1;
case 3: /* self_pri && peer_pri */
- dc = test_bit(DISCARD_CONCURRENT, &mdev->tconn->flags);
+ dc = test_bit(RESOLVE_CONFLICTS, &mdev->tconn->flags);
return dc ? -1 : 1;
}
}
@@ -3775,7 +3775,7 @@ static int receive_req_state(struct drbd_tconn *tconn, struct packet_info *pi)
mask.i = be32_to_cpu(p->mask);
val.i = be32_to_cpu(p->val);
- if (test_bit(DISCARD_CONCURRENT, &mdev->tconn->flags) &&
+ if (test_bit(RESOLVE_CONFLICTS, &mdev->tconn->flags) &&
mutex_is_locked(mdev->state_mutex)) {
drbd_send_sr_reply(mdev, SS_CONCURRENT_ST_CHG);
return 0;
@@ -3801,7 +3801,7 @@ static int receive_req_conn_state(struct drbd_tconn *tconn, struct packet_info *
mask.i = be32_to_cpu(p->mask);
val.i = be32_to_cpu(p->val);
- if (test_bit(DISCARD_CONCURRENT, &tconn->flags) &&
+ if (test_bit(RESOLVE_CONFLICTS, &tconn->flags) &&
mutex_is_locked(&tconn->cstate_mutex)) {
conn_send_sr_reply(tconn, SS_CONCURRENT_ST_CHG);
return 0;