diff options
Diffstat (limited to 'drivers/block/drbd/drbd_receiver.c')
| -rw-r--r-- | drivers/block/drbd/drbd_receiver.c | 45 |
1 files changed, 23 insertions, 22 deletions
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index bc9ab7f..dff4870 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -42,7 +42,6 @@ #include <linux/unistd.h> #include <linux/vmalloc.h> #include <linux/random.h> -#include <linux/mm.h> #include <linux/string.h> #include <linux/scatterlist.h> #include "drbd_int.h" @@ -571,6 +570,25 @@ static int drbd_recv(struct drbd_conf *mdev, void *buf, size_t size) return rv; } +/* quoting tcp(7): + * On individual connections, the socket buffer size must be set prior to the + * listen(2) or connect(2) calls in order to have it take effect. + * This is our wrapper to do so. + */ +static void drbd_setbufsize(struct socket *sock, unsigned int snd, + unsigned int rcv) +{ + /* open coded SO_SNDBUF, SO_RCVBUF */ + if (snd) { + sock->sk->sk_sndbuf = snd; + sock->sk->sk_userlocks |= SOCK_SNDBUF_LOCK; + } + if (rcv) { + sock->sk->sk_rcvbuf = rcv; + sock->sk->sk_userlocks |= SOCK_RCVBUF_LOCK; + } +} + static struct socket *drbd_try_connect(struct drbd_conf *mdev) { const char *what; @@ -592,6 +610,8 @@ static struct socket *drbd_try_connect(struct drbd_conf *mdev) sock->sk->sk_rcvtimeo = sock->sk->sk_sndtimeo = mdev->net_conf->try_connect_int*HZ; + drbd_setbufsize(sock, mdev->net_conf->sndbuf_size, + mdev->net_conf->rcvbuf_size); /* explicitly bind to the configured IP as source IP * for the outgoing connections. @@ -670,6 +690,8 @@ static struct socket *drbd_wait_for_connect(struct drbd_conf *mdev) s_listen->sk->sk_reuse = 1; /* SO_REUSEADDR */ s_listen->sk->sk_rcvtimeo = timeo; s_listen->sk->sk_sndtimeo = timeo; + drbd_setbufsize(s_listen, mdev->net_conf->sndbuf_size, + mdev->net_conf->rcvbuf_size); what = "bind before listen"; err = s_listen->ops->bind(s_listen, @@ -856,16 +878,6 @@ retry: sock->sk->sk_priority = TC_PRIO_INTERACTIVE_BULK; msock->sk->sk_priority = TC_PRIO_INTERACTIVE; - if (mdev->net_conf->sndbuf_size) { - sock->sk->sk_sndbuf = mdev->net_conf->sndbuf_size; - sock->sk->sk_userlocks |= SOCK_SNDBUF_LOCK; - } - - if (mdev->net_conf->rcvbuf_size) { - sock->sk->sk_rcvbuf = mdev->net_conf->rcvbuf_size; - sock->sk->sk_userlocks |= SOCK_RCVBUF_LOCK; - } - /* NOT YET ... * sock->sk->sk_sndtimeo = mdev->net_conf->timeout*HZ/10; * sock->sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT; @@ -1154,17 +1166,6 @@ int drbd_submit_ee(struct drbd_conf *mdev, struct drbd_epoch_entry *e, unsigned n_bios = 0; unsigned nr_pages = (ds + PAGE_SIZE -1) >> PAGE_SHIFT; - if (atomic_read(&mdev->new_c_uuid)) { - if (atomic_add_unless(&mdev->new_c_uuid, -1, 1)) { - drbd_uuid_new_current(mdev); - drbd_md_sync(mdev); - - atomic_dec(&mdev->new_c_uuid); - wake_up(&mdev->misc_wait); - } - wait_event(mdev->misc_wait, !atomic_read(&mdev->new_c_uuid)); - } - /* In most cases, we will only need one bio. But in case the lower * level restrictions happen to be different at this offset on this * side than those of the sending peer, we may need to submit the |