From: Chuck Lever <chuck.lever@oracle.com>
Date: Fri, 9 Aug 2013 16:49:02 +0000 (-0400)
Subject: NFS: Add global helper for releasing slot table resources
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=eb2a1cd3c9df70ef84e91f2fc657fd19682346ca;p=linux-beck.git

NFS: Add global helper for releasing slot table resources

The nfs4_destroy_slot_tables() function is renamed to avoid
confusion with the new helper.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/fs/nfs/nfs4session.c b/fs/nfs/nfs4session.c
index be273c589b03..e0bf666c4c29 100644
--- a/fs/nfs/nfs4session.c
+++ b/fs/nfs/nfs4session.c
@@ -231,6 +231,16 @@ out:
 	return ret;
 }
 
+/**
+ * nfs4_release_slot_table - release resources attached to a slot table
+ * @tbl: slot table to shut down
+ *
+ */
+void nfs4_release_slot_table(struct nfs4_slot_table *tbl)
+{
+	nfs4_shrink_slot_table(tbl, 0);
+}
+
 /**
  * nfs4_setup_slot_table - prepare a stand-alone slot table for use
  * @tbl: slot table to set up
@@ -412,11 +422,10 @@ void nfs41_update_target_slotid(struct nfs4_slot_table *tbl,
 
 #if defined(CONFIG_NFS_V4_1)
 
-/* Destroy the slot table */
-static void nfs4_destroy_slot_tables(struct nfs4_session *session)
+static void nfs4_destroy_session_slot_tables(struct nfs4_session *session)
 {
-	nfs4_shrink_slot_table(&session->fc_slot_table, 0);
-	nfs4_shrink_slot_table(&session->bc_slot_table, 0);
+	nfs4_release_slot_table(&session->fc_slot_table);
+	nfs4_release_slot_table(&session->bc_slot_table);
 }
 
 /*
@@ -441,7 +450,7 @@ int nfs4_setup_session_slot_tables(struct nfs4_session *ses)
 	if (status && tbl->slots == NULL)
 		/* Fore and back channel share a connection so get
 		 * both slot tables or neither */
-		nfs4_destroy_slot_tables(ses);
+		nfs4_destroy_session_slot_tables(ses);
 	return status;
 }
 
@@ -477,7 +486,7 @@ void nfs4_destroy_session(struct nfs4_session *session)
 	dprintk("%s Destroy backchannel for xprt %p\n",
 		__func__, xprt);
 	xprt_destroy_backchannel(xprt, NFS41_BC_MIN_CALLBACKS);
-	nfs4_destroy_slot_tables(session);
+	nfs4_destroy_session_slot_tables(session);
 	kfree(session);
 }
 
diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h
index f223a7648f9e..bfb0fe38f024 100644
--- a/fs/nfs/nfs4session.h
+++ b/fs/nfs/nfs4session.h
@@ -74,6 +74,7 @@ enum nfs4_session_state {
 
 extern int nfs4_setup_slot_table(struct nfs4_slot_table *tbl,
 		unsigned int max_reqs, const char *queue);
+extern void nfs4_release_slot_table(struct nfs4_slot_table *tbl);
 extern struct nfs4_slot *nfs4_alloc_slot(struct nfs4_slot_table *tbl);
 extern void nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *slot);
 extern void nfs4_slot_tbl_drain_complete(struct nfs4_slot_table *tbl);