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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2017-10-13 14:08:55 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2017-10-16 08:24:08 -0400 |
| commit | 4c625a974fb81724e60966b677e47fcba782c950 (patch) | |
| tree | b2d8b4e3a8c3a591c52aff428e55f4f6f469e03a | |
| parent | 33d930e59a98fa10a0db9f56c7fa2f21a4aef9b9 (diff) | |
| download | linux-4c625a974fb81724e60966b677e47fcba782c950.tar.gz linux-4c625a974fb81724e60966b677e47fcba782c950.tar.bz2 linux-4c625a974fb81724e60966b677e47fcba782c950.zip | |
SUNRPC: fix a list corruption issue in xprt_release()
We remove the request from the receive list before we call
xprt_wait_on_pinned_rqst(), and so we need to use list_del_init().
Otherwise, we will see list corruption when xprt_complete_rqst()
is called.
Reported-by: Emre Celebi <emre@primarydata.com>
Fixes: ce7c252a8c741 ("SUNRPC: Add a separate spinlock to protect...")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| -rw-r--r-- | net/sunrpc/xprt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index e741ec2b4d8e..1a39ad14c42f 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -1333,7 +1333,7 @@ void xprt_release(struct rpc_task *task) rpc_count_iostats(task, task->tk_client->cl_metrics); spin_lock(&xprt->recv_lock); if (!list_empty(&req->rq_list)) { - list_del(&req->rq_list); + list_del_init(&req->rq_list); xprt_wait_on_pinned_rqst(req); } spin_unlock(&xprt->recv_lock); |