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Commit 37629b57 authored by Stanislav Kinsbursky's avatar Stanislav Kinsbursky Committed by Trond Myklebust
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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: default avatarStanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 7aab449e

net/sunrpc/rpc_pipe.c

+2 −1
Original line number Diff line number Diff line
@@ -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;

}