summaryrefslogtreecommitdiffstats
path: root/xlators/mgmt
diff options
context:
space:
mode:
authorKrishnan Parthasarathi <kparthas@redhat.com>2015-05-20 18:23:58 +0530
committerKaushal M <kaushal@redhat.com>2015-05-26 06:41:35 -0700
commitf59a1431e38ad644b6bdd4adbdf94ff028c9c60d (patch)
tree2261ef1faa66d2ac6ed044d162df7294d065b085 /xlators/mgmt
parent30c97ce5c9ba03760bdab7c82208065da631efe9 (diff)
glusterd: fix double-free of rebalance process' rpc object
Change-Id: I0c79c4de47a160b1ecf3a8994eedc02e3f5002a9 BUG: 1223338 Signed-off-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-on: http://review.gluster.org/10872 Tested-by: NetBSD Build System Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Atin Mukherjee <amukherj@redhat.com> Reviewed-by: Kaushal M <kaushal@redhat.com>
Diffstat (limited to 'xlators/mgmt')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-rebalance.c8
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-rpc-ops.c2
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-syncop.c5
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.c57
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.h8
5 files changed, 72 insertions, 8 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-rebalance.c b/xlators/mgmt/glusterd/src/glusterd-rebalance.c
index 9111c07b8fc..f126e8f0b1f 100644
--- a/xlators/mgmt/glusterd/src/glusterd-rebalance.c
+++ b/xlators/mgmt/glusterd/src/glusterd-rebalance.c
@@ -149,10 +149,7 @@ __glusterd_defrag_notify (struct rpc_clnt *rpc, void *mydata,
glusterd_store_perform_node_state_store (volinfo);
- if (defrag->rpc) {
- glusterd_rpc_clnt_unref (priv, defrag->rpc);
- defrag->rpc = NULL;
- }
+ glusterd_defrag_rpc_put (defrag);
if (defrag->cbk_fn)
defrag->cbk_fn (volinfo,
volinfo->rebal.defrag_status);
@@ -339,8 +336,9 @@ glusterd_rebalance_rpc_create (glusterd_volinfo_t *volinfo,
goto out;
//rpc obj for rebalance process already in place.
- if (defrag->rpc) {
+ if (glusterd_defrag_rpc_get (defrag)) {
ret = 0;
+ glusterd_defrag_rpc_put (defrag);
goto out;
}
GLUSTERD_GET_DEFRAG_SOCK_FILE (sockfile, volinfo);
diff --git a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
index 59b0e5f072e..231c2f720ba 100644
--- a/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-rpc-ops.c
@@ -2173,6 +2173,8 @@ glusterd_brick_op (call_frame_t *frame, xlator_t *this,
}
if (!ret)
pending_bricks++;
+
+ glusterd_pending_node_put_rpc (pending_node);
}
gf_log (this->name, GF_LOG_DEBUG, "Sent brick op req for operation "
diff --git a/xlators/mgmt/glusterd/src/glusterd-syncop.c b/xlators/mgmt/glusterd/src/glusterd-syncop.c
index 43539643c0b..6f36478aeca 100644
--- a/xlators/mgmt/glusterd/src/glusterd-syncop.c
+++ b/xlators/mgmt/glusterd/src/glusterd-syncop.c
@@ -1658,10 +1658,15 @@ gd_brick_op_phase (glusterd_op_t op, dict_t *op_ctx, dict_t *req_dict,
goto out;
brick_count++;
+ glusterd_pending_node_put_rpc (pending_node);
}
+ pending_node = NULL;
ret = 0;
out:
+ if (pending_node)
+ glusterd_pending_node_put_rpc (pending_node);
+
if (rsp_dict)
dict_unref (rsp_dict);
gf_log (this->name, GF_LOG_DEBUG, "Sent op req to %d bricks",
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index 593e32e95d0..b19813cbefb 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -3523,8 +3523,9 @@ gd_check_and_update_rebalance_info (glusterd_volinfo_t *old_volinfo,
new = &(new_volinfo->rebal);
//Disconnect from rebalance process
- if (old->defrag && old->defrag->rpc) {
+ if (glusterd_defrag_rpc_get (old->defrag)) {
rpc_transport_disconnect (old->defrag->rpc->conn.trans);
+ glusterd_defrag_rpc_put (old->defrag);
}
if (!gf_uuid_is_null (old->rebalance_id) &&
@@ -3806,6 +3807,39 @@ out:
}
struct rpc_clnt*
+glusterd_defrag_rpc_get (glusterd_defrag_info_t *defrag)
+{
+ struct rpc_clnt *rpc = NULL;
+
+ if (!defrag)
+ return NULL;
+
+ LOCK (&defrag->lock);
+ {
+ rpc = rpc_clnt_ref (defrag->rpc);
+ }
+ UNLOCK (&defrag->lock);
+ return rpc;
+}
+
+struct rpc_clnt*
+glusterd_defrag_rpc_put (glusterd_defrag_info_t *defrag)
+{
+ struct rpc_clnt *rpc = NULL;
+
+ if (!defrag)
+ return NULL;
+
+ LOCK (&defrag->lock);
+ {
+ rpc = rpc_clnt_unref (defrag->rpc);
+ defrag->rpc = rpc;
+ }
+ UNLOCK (&defrag->lock);
+ return rpc;
+}
+
+struct rpc_clnt*
glusterd_pending_node_get_rpc (glusterd_pending_node_t *pending_node)
{
struct rpc_clnt *rpc = NULL;
@@ -3827,8 +3861,8 @@ glusterd_pending_node_get_rpc (glusterd_pending_node_t *pending_node)
rpc = svc->conn.rpc;
} else if (pending_node->type == GD_NODE_REBALANCE) {
volinfo = pending_node->node;
- if (volinfo->rebal.defrag)
- rpc = volinfo->rebal.defrag->rpc;
+ rpc = glusterd_defrag_rpc_get (volinfo->rebal.defrag);
+
} else if (pending_node->type == GD_NODE_SNAPD) {
volinfo = pending_node->node;
rpc = volinfo->snapd.svc.conn.rpc;
@@ -3840,6 +3874,23 @@ out:
return rpc;
}
+void
+glusterd_pending_node_put_rpc (glusterd_pending_node_t *pending_node)
+{
+ glusterd_volinfo_t *volinfo = NULL;
+
+ switch (pending_node->type) {
+ case GD_NODE_REBALANCE:
+ volinfo = pending_node->node;
+ glusterd_defrag_rpc_put (volinfo->rebal.defrag);
+ break;
+
+ default:
+ break;
+ }
+
+}
+
int32_t
glusterd_unlink_file (char *sockfpath)
{
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.h b/xlators/mgmt/glusterd/src/glusterd-utils.h
index 8975e53f91b..3906449e902 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.h
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.h
@@ -180,6 +180,9 @@ glusterd_set_socket_filepath (char *sock_filepath, char *sockpath, size_t len);
struct rpc_clnt*
glusterd_pending_node_get_rpc (glusterd_pending_node_t *pending_node);
+void
+glusterd_pending_node_put_rpc (glusterd_pending_node_t *pending_node);
+
int
glusterd_remote_hostname_get (rpcsvc_request_t *req,
char *remote_host, int len);
@@ -654,4 +657,9 @@ int
glusterd_disallow_op_for_tier (glusterd_volinfo_t *volinfo, glusterd_op_t op,
int cmd);
+struct rpc_clnt*
+glusterd_defrag_rpc_get (glusterd_defrag_info_t *defrag);
+
+struct rpc_clnt*
+glusterd_defrag_rpc_put (glusterd_defrag_info_t *defrag);
#endif