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authorAndreas Gruenbacher <agruen@linbit.com>2011-05-04 15:25:35 +0200
committerPhilipp Reisner <philipp.reisner@linbit.com>2012-11-08 16:55:46 +0100
commitbb77d34ecc6fe6cdc3f4f0841a516695c2eacc04 (patch)
tree17700898cda727c8bbeac93e308ab5fae7a46cb8
parente544046ab842ab93c275a6fc4e043c1cb637076d (diff)
downloadvexpress-lsk-bb77d34ecc6fe6cdc3f4f0841a516695c2eacc04.tar.gz
drbd: Turn no-tcp-cork into tcp-cork={yes|no}
Change the --no-tcp-cork drbdsetup command line option as well as the no_cork netlink packet. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
-rw-r--r--drivers/block/drbd/drbd_receiver.c8
-rw-r--r--drivers/block/drbd/drbd_worker.c2
-rw-r--r--include/linux/drbd_genl.h2
3 files changed, 6 insertions, 6 deletions
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 5d1bdda8ec9..b4858bb7894 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -5040,7 +5040,7 @@ int drbd_asender(struct drbd_thread *thi)
int expect = header_size;
bool ping_timeout_active = false;
struct net_conf *nc;
- int ping_timeo, no_cork, ping_int;
+ int ping_timeo, tcp_cork, ping_int;
current->policy = SCHED_RR; /* Make this a realtime task! */
current->rt_priority = 2; /* more important than all other tasks */
@@ -5051,7 +5051,7 @@ int drbd_asender(struct drbd_thread *thi)
rcu_read_lock();
nc = rcu_dereference(tconn->net_conf);
ping_timeo = nc->ping_timeo;
- no_cork = nc->no_cork;
+ tcp_cork = nc->tcp_cork;
ping_int = nc->ping_int;
rcu_read_unlock();
@@ -5066,14 +5066,14 @@ int drbd_asender(struct drbd_thread *thi)
/* TODO: conditionally cork; it may hurt latency if we cork without
much to send */
- if (!no_cork)
+ if (tcp_cork)
drbd_tcp_cork(tconn->meta.socket);
if (tconn_finish_peer_reqs(tconn)) {
conn_err(tconn, "tconn_finish_peer_reqs() failed\n");
goto reconnect;
}
/* but unconditionally uncork unless disabled */
- if (!no_cork)
+ if (tcp_cork)
drbd_tcp_uncork(tconn->meta.socket);
/* short circuit, recv_msg would return EINTR anyways. */
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index e37c42d5dd6..78c3de49eff 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1694,7 +1694,7 @@ int drbd_worker(struct drbd_thread *thi)
rcu_read_lock();
nc = rcu_dereference(tconn->net_conf);
- cork = nc ? !nc->no_cork : 0;
+ cork = nc ? nc->tcp_cork : 0;
rcu_read_unlock();
if (tconn->data.socket && cork)
diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h
index 53518fc2315..6632d10f1ee 100644
--- a/include/linux/drbd_genl.h
+++ b/include/linux/drbd_genl.h
@@ -162,7 +162,7 @@ GENL_struct(DRBD_NLA_NET_CONF, 5, net_conf,
__u32_field_def(25, GENLA_F_MANDATORY, cong_extents, DRBD_CONG_EXTENTS_DEF)
__flg_field_def(26, GENLA_F_MANDATORY, two_primaries, 0)
__flg_field(27, GENLA_F_MANDATORY | GENLA_F_INVARIANT, want_lose)
- __flg_field_def(28, GENLA_F_MANDATORY, no_cork, 0)
+ __flg_field_def(28, GENLA_F_MANDATORY, tcp_cork, 1)
__flg_field_def(29, GENLA_F_MANDATORY, always_asbp, 0)
__flg_field(30, GENLA_F_MANDATORY | GENLA_F_INVARIANT, dry_run)
__flg_field_def(31, GENLA_F_MANDATORY, use_rle, 0)