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authorGrant Likely <grant.likely@secretlab.ca>2010-07-24 15:49:13 (GMT)
committerGrant Likely <grant.likely@secretlab.ca>2010-07-24 15:49:13 (GMT)
commit4e4f62bf7396fca48efe61513640ee399a6046e3 (patch)
tree42a503af02d9806bcc05e5fcc2cd53f9bd45b0c2 /drivers/block/drbd/drbd_nl.c
parent9e3288dc9a94fab5ea87db42177d3a9e0345a614 (diff)
parentb37fa16e78d6f9790462b3181602a26b5af36260 (diff)
downloadlinux-fsl-qoriq-4e4f62bf7396fca48efe61513640ee399a6046e3.tar.xz
Merge commit 'v2.6.35-rc6' into devicetree/next
Conflicts: arch/sparc/kernel/prom_64.c
Diffstat (limited to 'drivers/block/drbd/drbd_nl.c')
-rw-r--r--drivers/block/drbd/drbd_nl.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 632e324..2151f18 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1114,6 +1114,12 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
mdev->new_state_tmp.i = ns.i;
ns.i = os.i;
ns.disk = D_NEGOTIATING;
+
+ /* We expect to receive up-to-date UUIDs soon.
+ To avoid a race in receive_state, free p_uuid while
+ holding req_lock. I.e. atomic with the state change */
+ kfree(mdev->p_uuid);
+ mdev->p_uuid = NULL;
}
rv = _drbd_set_state(mdev, ns, CS_VERBOSE, NULL);