diff options
| author | Stanislav Kinsbursky <skinsbursky@parallels.com> | 2012-01-11 19:18:26 +0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-01-31 18:20:25 -0500 |
| commit | f5131257f771ad0e84cf0314a2a86b66318755a9 (patch) | |
| tree | bb91fb8a51ca5d0ad6483cc62d1d6c2956be6fb1 | |
| parent | 80df9d202255071c8ec610a6a3fdca5cac69f7bd (diff) | |
| download | linux-f5131257f771ad0e84cf0314a2a86b66318755a9.tar.bz2 | |
SUNRPC: remove RPC client pipefs dentries after unregister
Without this patch we have races:
rpc_fill_super rpc_free_client
rpc_pipefs_event(MOUNT) rpc_remove_pipedir
spin_lock(&rpc_client_lock);
rpc_setup_pipedir_sb
spin_unlock(&rpc_client_lock);
spin_lock(&rpc_client_lock);
(remove from list)
spin_unlock(&rpc_client_lock);
MEAMORY LEAKED
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | net/sunrpc/clnt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 417074500592..c89ceb80fe87 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -578,7 +578,6 @@ rpc_free_client(struct rpc_clnt *clnt) { dprintk("RPC: destroying %s client for %s\n", clnt->cl_protname, clnt->cl_server); - rpc_clnt_remove_pipedir(clnt); if (clnt->cl_parent != clnt) { rpc_release_client(clnt->cl_parent); goto out_free; @@ -587,6 +586,7 @@ rpc_free_client(struct rpc_clnt *clnt) kfree(clnt->cl_server); out_free: rpc_unregister_client(clnt); + rpc_clnt_remove_pipedir(clnt); rpc_free_iostats(clnt->cl_metrics); kfree(clnt->cl_principal); clnt->cl_metrics = NULL; |