From a2a3258417eb6a1799cf893350771428875a8287 Mon Sep 17 00:00:00 2001 From: Guanjun He Date: Sun, 8 Jul 2012 19:50:33 -0700 Subject: libceph: prevent the race of incoming work during teardown Add an atomic variable 'stopping' as flag in struct ceph_messenger, set this flag to 1 in function ceph_destroy_client(), and add the condition code in function ceph_data_ready() to test the flag value, if true(1), just return. Signed-off-by: Guanjun He Reviewed-by: Sage Weil --- net/ceph/ceph_common.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'net/ceph/ceph_common.c') diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index 58b09efb528d..3b45e01fa8d1 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -495,6 +495,8 @@ void ceph_destroy_client(struct ceph_client *client) { dout("destroy_client %p\n", client); + atomic_set(&client->msgr.stopping, 1); + /* unmount */ ceph_osdc_stop(&client->osdc); -- cgit v1.2.3