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authorLinus Torvalds <torvalds@linux-foundation.org>2022-09-12 17:53:46 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2022-09-12 17:53:46 -0400
commit6504d82f4440755d6fc1385532f84d0344243d61 (patch)
treefee3ccfa544e2279ba55ff60d598c06076d50e40 /net/sunrpc
parent62d1cea7d66ee690de398e281470e78e94d085f7 (diff)
parent13bd9014180425f5a35eaf3735971d582c299292 (diff)
Merge tag 'nfs-for-5.20-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust: - Fix SUNRPC call completion races with call_decode() that trigger a WARN_ON() - NFSv4.0 cannot support open-by-filehandle and NFS re-export - Revert "SUNRPC: Remove unreachable error condition" to allow handling of error conditions - Update suid/sgid mode bits after ALLOCATE and DEALLOCATE * tag 'nfs-for-5.20-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: Revert "SUNRPC: Remove unreachable error condition" NFSv4.2: Update mode bits after ALLOCATE and DEALLOCATE NFSv4: Turn off open-by-filehandle and NFS re-export for NFSv4.0 SUNRPC: Fix call completion races with call_decode()
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/clnt.c3
-rw-r--r--net/sunrpc/xprt.c8
2 files changed, 7 insertions, 4 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 7d268a291486..c284efa3d1ef 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -2873,6 +2873,9 @@ int rpc_clnt_test_and_add_xprt(struct rpc_clnt *clnt,
task = rpc_call_null_helper(clnt, xprt, NULL, RPC_TASK_ASYNC,
&rpc_cb_add_xprt_call_ops, data);
+ if (IS_ERR(task))
+ return PTR_ERR(task);
+
data->xps->xps_nunique_destaddr_xprts++;
rpc_put_task(task);
success:
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index d71eec494826..f8fae7815649 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1179,11 +1179,8 @@ xprt_request_dequeue_receive_locked(struct rpc_task *task)
{
struct rpc_rqst *req = task->tk_rqstp;
- if (test_and_clear_bit(RPC_TASK_NEED_RECV, &task->tk_runstate)) {
+ if (test_and_clear_bit(RPC_TASK_NEED_RECV, &task->tk_runstate))
xprt_request_rb_remove(req->rq_xprt, req);
- xdr_free_bvec(&req->rq_rcv_buf);
- req->rq_private_buf.bvec = NULL;
- }
}
/**
@@ -1221,6 +1218,8 @@ void xprt_complete_rqst(struct rpc_task *task, int copied)
xprt->stat.recvs++;
+ xdr_free_bvec(&req->rq_rcv_buf);
+ req->rq_private_buf.bvec = NULL;
req->rq_private_buf.len = copied;
/* Ensure all writes are done before we update */
/* req->rq_reply_bytes_recvd */
@@ -1453,6 +1452,7 @@ xprt_request_dequeue_xprt(struct rpc_task *task)
xprt_request_dequeue_transmit_locked(task);
xprt_request_dequeue_receive_locked(task);
spin_unlock(&xprt->queue_lock);
+ xdr_free_bvec(&req->rq_rcv_buf);
}
}