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authorBenny Halevy <bhalevy@panasas.com>2010-05-12 00:13:16 +0300
committerJ. Bruce Fields <bfields@citi.umich.edu>2010-05-11 21:02:02 -0400
commit84d38ac9abf0a5bc0044c9363acaad55a9a4be0d (patch)
tree88d54cef8c221be2384d4dbc3a75555cc436a0a6 /fs/nfsd
parent36acb66bda512dd8159c3e1b40358c5219524868 (diff)
downloadlinux-84d38ac9abf0a5bc0044c9363acaad55a9a4be0d.tar.gz
nfsd4: refactor expire_client
Separate out unhashing of the client and session.
To be used later by the laundromat.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4state.c29
1 files changed, 18 insertions, 11 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3f572cb3f896..dede43c37336 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -693,6 +693,20 @@ free_client(struct nfs4_client *clp)
 	kfree(clp);
 }
 
+/* must be called under the client_lock */
+static inline void
+unhash_client_locked(struct nfs4_client *clp)
+{
+	list_del(&clp->cl_lru);
+	while (!list_empty(&clp->cl_sessions)) {
+		struct nfsd4_session  *ses;
+		ses = list_entry(clp->cl_sessions.next, struct nfsd4_session,
+				 se_perclnt);
+		unhash_session(ses);
+		nfsd4_put_session(ses);
+	}
+}
+
 static void
 expire_client(struct nfs4_client *clp)
 {
@@ -719,21 +733,14 @@ expire_client(struct nfs4_client *clp)
 		sop = list_entry(clp->cl_openowners.next, struct nfs4_stateowner, so_perclient);
 		release_openowner(sop);
 	}
+	nfsd4_set_callback_client(clp, NULL);
+	if (clp->cl_cb_conn.cb_xprt)
+		svc_xprt_put(clp->cl_cb_conn.cb_xprt);
 	list_del(&clp->cl_idhash);
 	list_del(&clp->cl_strhash);
 	spin_lock(&client_lock);
-	list_del(&clp->cl_lru);
-	while (!list_empty(&clp->cl_sessions)) {
-		struct nfsd4_session  *ses;
-		ses = list_entry(clp->cl_sessions.next, struct nfsd4_session,
-				 se_perclnt);
-		unhash_session(ses);
-		nfsd4_put_session(ses);
-	}
+	unhash_client_locked(clp);
 	spin_unlock(&client_lock);
-	nfsd4_set_callback_client(clp, NULL);
-	if (clp->cl_cb_conn.cb_xprt)
-		svc_xprt_put(clp->cl_cb_conn.cb_xprt);
 	free_client(clp);
 }