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authorStanislav Kinsbursky <skinsbursky@parallels.com>2012-04-20 16:19:56 +0200
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-04-27 20:10:00 +0200
commit37629b572cc4e80fc24b4139a24df1a89415d534 (patch)
tree49d77495315e93ad187467837779f88073c37f15 /net/sunrpc/rpc_pipe.c
parentSUNRPC: skip clients with program without PipeFS entries (diff)
downloadlinux-37629b572cc4e80fc24b4139a24df1a89415d534.tar.xz
linux-37629b572cc4e80fc24b4139a24df1a89415d534.zip
SUNRPC: set per-net PipeFS superblock before notification
There can be a case, when on MOUNT event RPC client (after it's dentries were created) is not longer hold by anyone except notification callback. I.e. on release this client will be destoroyed. And it's dentries have to be destroyed as well. Which in turn requires per-net PipeFS superblock to be set. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/rpc_pipe.c')
-rw-r--r--net/sunrpc/rpc_pipe.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 0af37fc46818..3b62cf288031 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -1126,19 +1126,20 @@ rpc_fill_super(struct super_block *sb, void *data, int silent)
return -ENOMEM;
dprintk("RPC: sending pipefs MOUNT notification for net %p%s\n", net,
NET_NAME(net));
+ sn->pipefs_sb = sb;
err = blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
RPC_PIPEFS_MOUNT,
sb);
if (err)
goto err_depopulate;
sb->s_fs_info = get_net(net);
- sn->pipefs_sb = sb;
return 0;
err_depopulate:
blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
RPC_PIPEFS_UMOUNT,
sb);
+ sn->pipefs_sb = NULL;
__rpc_depopulate(root, files, RPCAUTH_lockd, RPCAUTH_RootEOF);
return err;
}