SUNRPC: Ensure rpc_call_async() always calls tk_ops->rpc_release()
Currently this will not happen if we exit before rpc_new_task() was called.
Also fix up rpc_run_task() to do the same (for consistency).
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 02c7d8c..4aba15a 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -605,11 +605,14 @@
int status;
atomic_inc(&data->count);
+ /*
+ * If rpc_run_task() ends up calling ->rpc_release(), we
+ * want to ensure that it takes the 'error' code path.
+ */
+ data->rpc_status = -ENOMEM;
task = rpc_run_task(server->client, RPC_TASK_ASYNC, &nfs4_open_confirm_ops, data);
- if (IS_ERR(task)) {
- nfs4_opendata_free(data);
+ if (IS_ERR(task))
return PTR_ERR(task);
- }
status = nfs4_wait_for_completion_rpc_task(task);
if (status != 0) {
data->cancelled = 1;
@@ -708,11 +711,14 @@
int status;
atomic_inc(&data->count);
+ /*
+ * If rpc_run_task() ends up calling ->rpc_release(), we
+ * want to ensure that it takes the 'error' code path.
+ */
+ data->rpc_status = -ENOMEM;
task = rpc_run_task(server->client, RPC_TASK_ASYNC, &nfs4_open_ops, data);
- if (IS_ERR(task)) {
- nfs4_opendata_free(data);
+ if (IS_ERR(task))
return PTR_ERR(task);
- }
status = nfs4_wait_for_completion_rpc_task(task);
if (status != 0) {
data->cancelled = 1;
@@ -2959,10 +2965,8 @@
data->rpc_status = 0;
task = rpc_run_task(NFS_CLIENT(inode), RPC_TASK_ASYNC, &nfs4_delegreturn_ops, data);
- if (IS_ERR(task)) {
- nfs4_delegreturn_release(data);
+ if (IS_ERR(task))
return PTR_ERR(task);
- }
status = nfs4_wait_for_completion_rpc_task(task);
if (status == 0) {
status = data->rpc_status;
@@ -3182,7 +3186,6 @@
struct nfs_seqid *seqid)
{
struct nfs4_unlockdata *data;
- struct rpc_task *task;
data = nfs4_alloc_unlockdata(fl, ctx, lsp, seqid);
if (data == NULL) {
@@ -3192,10 +3195,7 @@
/* Unlock _before_ we do the RPC call */
do_vfs_lock(fl->fl_file, fl);
- task = rpc_run_task(NFS_CLIENT(lsp->ls_state->inode), RPC_TASK_ASYNC, &nfs4_locku_ops, data);
- if (IS_ERR(task))
- nfs4_locku_release_calldata(data);
- return task;
+ return rpc_run_task(NFS_CLIENT(lsp->ls_state->inode), RPC_TASK_ASYNC, &nfs4_locku_ops, data);
}
static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
@@ -3376,10 +3376,8 @@
data->arg.reclaim = 1;
task = rpc_run_task(NFS_CLIENT(state->inode), RPC_TASK_ASYNC,
&nfs4_lock_ops, data);
- if (IS_ERR(task)) {
- nfs4_lock_release(data);
+ if (IS_ERR(task))
return PTR_ERR(task);
- }
ret = nfs4_wait_for_completion_rpc_task(task);
if (ret == 0) {
ret = data->rpc_status;