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SUNRPC: Fix races between socket connection and destroy code

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When we're destroying the socket transport, we need to ensure that
we cancel any existing delayed connection attempts, and order them
w.r.t. the call to xs_close().

Reported-by:"Suzuki K. Poulose" <suzuki.poulose@arm.com>
Acked-by: Jeff Layton <jlayton@poochiereds.net>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2015-09-17 10:42:27 -04:00
parent 048883e0b9
commit 03c78827db
1 changed files with 3 additions and 0 deletions
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3
net/sunrpc/xprtsock.c
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@ -881,8 +881,11 @@ static void xs_xprt_free(struct rpc_xprt *xprt)
*/
static void xs_destroy(struct rpc_xprt *xprt)
{
struct sock_xprt *transport = container_of(xprt,
struct sock_xprt, xprt);
dprintk("RPC: xs_destroy xprt %p\n", xprt);
cancel_delayed_work_sync(&transport->connect_worker);
xs_close(xprt);
xs_xprt_free(xprt);
module_put(THIS_MODULE);