These clients can't be safely dereferenced if their counter in 0. Signee-off-by: Stanislav Kinsbursky <skinsbursky@xxxxxxxxxxxxx> Signed-off-by: Stanislav Kinsbursky <skinsbursky@xxxxxxxxxxxxx> --- net/sunrpc/clnt.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 6797246..591994d 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -218,7 +218,8 @@ static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event) if (((event == RPC_PIPEFS_MOUNT) && clnt->cl_dentry) || ((event == RPC_PIPEFS_UMOUNT) && !clnt->cl_dentry)) continue; - atomic_inc(&clnt->cl_count); + if (atomic_inc_return(&clnt->cl_count) == 1) + continue; spin_unlock(&sn->rpc_client_lock); return clnt; } -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
