Merge with Linux 2.3.41.

1 files changed, 68 insertions, 0 deletions

diff --git a/fs/autofs4/inohash.c b/fs/autofs4/inohash.c
new file mode 100644
index 000000000..6190a55d3
--- /dev/null
+++ b/fs/autofs4/inohash.c
@@ -0,0 +1,68 @@
+/*
+ * "inohash" is a misnomer.  Inodes are just stored in a single list,
+ * since this code is only ever asked for the most recently inserted
+ * inode.
+ *
+ *   Copyright 1999 Jeremy Fitzhardinge <jeremy@goop.org>
+ */
+
+#include "autofs_i.h"
+
+void autofs4_init_ihash(struct autofs_inohash *ih)
+{
+	INIT_LIST_HEAD(&ih->head);
+}
+
+void autofs4_ihash_insert(struct autofs_inohash *ih, 
+			  struct autofs_info *ino)
+{
+	DPRINTK(("autofs_ihash_insert: adding ino %ld\n", ino->ino));
+	
+	list_add(&ino->ino_hash, &ih->head);
+}
+
+void autofs4_ihash_delete(struct autofs_info *inf)
+{
+	DPRINTK(("autofs_ihash_delete: deleting ino %ld\n", inf->ino));
+
+	if (!list_empty(&inf->ino_hash))
+		list_del(&inf->ino_hash);
+}
+
+struct autofs_info *autofs4_ihash_find(struct autofs_inohash *ih, 
+				       ino_t inum)
+{
+	struct list_head *tmp;
+
+	for(tmp = ih->head.next;
+	    tmp != &ih->head;
+	    tmp = tmp->next) {
+		struct autofs_info *ino = list_entry(tmp, struct autofs_info, ino_hash);
+		if (ino->ino == inum) {
+			DPRINTK(("autofs_ihash_find: found %ld -> %p\n",
+				 inum, ino));
+			return ino;
+		}
+	}
+	DPRINTK(("autofs_ihash_find: didn't find %ld\n", inum));
+	return NULL;
+}
+
+void autofs4_ihash_nuke(struct autofs_inohash *ih)
+{
+	struct list_head *tmp = ih->head.next;
+	struct list_head *next;
+		
+	for(; tmp != &ih->head; tmp = next) {
+		struct autofs_info *ino;
+
+		next = tmp->next;
+
+		ino = list_entry(tmp, struct autofs_info, ino_hash);
+
+		DPRINTK(("autofs_ihash_nuke: nuking %ld\n", ino->ino));
+		autofs4_free_ino(ino);
+	}
+	INIT_LIST_HEAD(&ih->head);
+}
+