diff options
| author | anand <anekkunt@redhat.com> | 2015-06-17 16:11:48 +0530 |
|---|---|---|
| committer | Atin Mukherjee <amukherj@redhat.com> | 2015-06-19 02:32:35 -0700 |
| commit | 8ddf7f2669779cee460f1e008cdb62671cf15a40 (patch) | |
| tree | fb9596c3cab6cb3c0eb0a021fcb77a8ddb94e778 /xlators | |
| parent | 46bf15e897ee9711835af211c19351a9920d490b (diff) | |
glusterd: Removing sync lock and unlock inside rcu read critical section
Issue : Glsuterd was crashing during peer probe.
RCA : In glusterd, we are using big lock which is implemented based on sync
task frame work for thread synchronization, sync task frame work swap the threads
if there is no worker pool threads available. Due to this rcu lock and rcu unlock
was happening in different threads (urcu-bp will not allow this), resulting into
glusterd crash.
fix : Removing sync lock and unlock inside rcu read critical section, which was left out by
http://review.gluster.org/#/c/10285/ patch.
Change-Id: Id358dfcc797335bcd3b491c3129017b2caa826eb
BUG: 1232693
Signed-off-by: anand <anekkunt@redhat.com>
Reviewed-on: http://review.gluster.org/11276
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Diffstat (limited to 'xlators')
| -rw-r--r-- | xlators/mgmt/glusterd/src/glusterd-rpc-ops.c | 3 | ||||
| -rw-r--r-- | xlators/mgmt/glusterd/src/glusterd-utils.c | 28 |
2 files changed, 5 insertions, 26 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c index f777d85f53e..2a0fba23496 100644 --- a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c +++ b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c @@ -1622,13 +1622,12 @@ glusterd_rpc_friend_remove (call_frame_t *frame, xlator_t *this, req.hostname = gf_strdup (peerinfo->hostname); req.port = peerinfo->port; - rcu_read_unlock (); - ret = glusterd_submit_request (peerinfo->rpc, &req, frame, peerinfo->peer, GLUSTERD_FRIEND_REMOVE, NULL, this, glusterd_friend_remove_cbk, (xdrproc_t)xdr_gd1_mgmt_friend_req); + rcu_read_unlock (); out: GF_FREE (req.hostname); diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c index 12cb0730960..48216f61989 100644 --- a/xlators/mgmt/glusterd/src/glusterd-utils.c +++ b/xlators/mgmt/glusterd/src/glusterd-utils.c @@ -237,11 +237,10 @@ glusterd_get_uuid (uuid_t *uuid) } int -glusterd_submit_request_unlocked (struct rpc_clnt *rpc, void *req, - call_frame_t *frame, rpc_clnt_prog_t *prog, - int procnum, struct iobref *iobref, - xlator_t *this, fop_cbk_fn_t cbkfn, - xdrproc_t xdrproc) +glusterd_submit_request (struct rpc_clnt *rpc, void *req, + call_frame_t *frame, rpc_clnt_prog_t *prog, + int procnum, struct iobref *iobref, + xlator_t *this, fop_cbk_fn_t cbkfn, xdrproc_t xdrproc) { char new_iobref = 0; int ret = -1; @@ -305,25 +304,6 @@ out: } -int -glusterd_submit_request (struct rpc_clnt *rpc, void *req, - call_frame_t *frame, rpc_clnt_prog_t *prog, - int procnum, struct iobref *iobref, - xlator_t *this, fop_cbk_fn_t cbkfn, xdrproc_t xdrproc) -{ - glusterd_conf_t *priv = THIS->private; - int ret = -1; - - synclock_unlock (&priv->big_lock); - { - ret = glusterd_submit_request_unlocked (rpc, req, frame, prog, - procnum, iobref, this, - cbkfn, xdrproc); - } - synclock_lock (&priv->big_lock); - - return ret; -} struct iobuf * |