Merge branch 'drm-radeon-evergreen-accel' into drm-core-next

[pandora-kernel.git] / drivers / block / drbd / drbd_main.c

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index ab871e0..67e0fc5 100644 (file)
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1668,7 +1668,7 @@ int drbd_send_sync_param(struct drbd_conf *mdev, struct syncer_conf *sc)
 int drbd_send_protocol(struct drbd_conf *mdev)
 {
        struct p_protocol *p;
-       int size, rv;
+       int size, cf, rv;
 
        size = sizeof(struct p_protocol);
 
@@ -1685,9 +1685,21 @@ int drbd_send_protocol(struct drbd_conf *mdev)
        p->after_sb_0p   = cpu_to_be32(mdev->net_conf->after_sb_0p);
        p->after_sb_1p   = cpu_to_be32(mdev->net_conf->after_sb_1p);
        p->after_sb_2p   = cpu_to_be32(mdev->net_conf->after_sb_2p);
-       p->want_lose     = cpu_to_be32(mdev->net_conf->want_lose);
        p->two_primaries = cpu_to_be32(mdev->net_conf->two_primaries);
 
+       cf = 0;
+       if (mdev->net_conf->want_lose)
+               cf |= CF_WANT_LOSE;
+       if (mdev->net_conf->dry_run) {
+               if (mdev->agreed_pro_version >= 92)
+                       cf |= CF_DRY_RUN;
+               else {
+                       dev_err(DEV, "--dry-run is not supported by peer");
+                       return 0;
+               }
+       }
+       p->conn_flags    = cpu_to_be32(cf);
+
        if (mdev->agreed_pro_version >= 87)
                strcpy(p->integrity_alg, mdev->net_conf->integrity_alg);
 
@@ -3161,14 +3173,18 @@ void drbd_free_bc(struct drbd_backing_dev *ldev)
 void drbd_free_sock(struct drbd_conf *mdev)
 {
        if (mdev->data.socket) {
+               mutex_lock(&mdev->data.mutex);
                kernel_sock_shutdown(mdev->data.socket, SHUT_RDWR);
                sock_release(mdev->data.socket);
                mdev->data.socket = NULL;
+               mutex_unlock(&mdev->data.mutex);
        }
        if (mdev->meta.socket) {
+               mutex_lock(&mdev->meta.mutex);
                kernel_sock_shutdown(mdev->meta.socket, SHUT_RDWR);
                sock_release(mdev->meta.socket);
                mdev->meta.socket = NULL;
+               mutex_unlock(&mdev->meta.mutex);
        }
 }