diff options
| author | Scott Mayhew <smayhew@redhat.com> | 2017-01-05 16:34:51 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-26 08:24:37 +0100 |
| commit | a297ed84b92846963b4a7c5efd90910cea9c39a5 (patch) | |
| tree | 15118ca8f83beab3fcaccd390f965db5bca834b5 /net | |
| parent | 90687fc3c8c386a16326089d68cf616b8049440f (diff) | |
sunrpc: don't call sleeping functions from the notifier block callbacks
commit 546125d1614264d26080817d0c8cddb9b25081fa upstream.
The inet6addr_chain is an atomic notifier chain, so we can't call
anything that might sleep (like lock_sock)... instead of closing the
socket from svc_age_temp_xprts_now (which is called by the notifier
function), just have the rpc service threads do it instead.
Fixes: c3d4879e01be "sunrpc: Add a function to close..."
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/svc_xprt.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 3bc1d61694cb..9c9db55a0c1e 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -799,6 +799,8 @@ static int svc_handle_xprt(struct svc_rqst *rqstp, struct svc_xprt *xprt) if (test_bit(XPT_CLOSE, &xprt->xpt_flags)) { dprintk("svc_recv: found XPT_CLOSE\n"); + if (test_and_clear_bit(XPT_KILL_TEMP, &xprt->xpt_flags)) + xprt->xpt_ops->xpo_kill_temp_xprt(xprt); svc_delete_xprt(xprt); /* Leave XPT_BUSY set on the dead xprt: */ goto out; @@ -1020,9 +1022,11 @@ void svc_age_temp_xprts_now(struct svc_serv *serv, struct sockaddr *server_addr) le = to_be_closed.next; list_del_init(le); xprt = list_entry(le, struct svc_xprt, xpt_list); - dprintk("svc_age_temp_xprts_now: closing %p\n", xprt); - xprt->xpt_ops->xpo_kill_temp_xprt(xprt); - svc_close_xprt(xprt); + set_bit(XPT_CLOSE, &xprt->xpt_flags); + set_bit(XPT_KILL_TEMP, &xprt->xpt_flags); + dprintk("svc_age_temp_xprts_now: queuing xprt %p for closing\n", + xprt); + svc_xprt_enqueue(xprt); } } EXPORT_SYMBOL_GPL(svc_age_temp_xprts_now); |