[PATCH][3/6] CPU Hotplug fs/

[Zwane Mwaikambo]

 buffer.c |   16 +++++++++++++++-
 1 files changed, 15 insertions(+), 1 deletion(-)

Index: linux-2.5.59-lch2/fs/buffer.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.59/fs/buffer.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 buffer.c
--- linux-2.5.59-lch2/fs/buffer.c	17 Jan 2003 11:16:13 -0000	1.1.1.1
+++ linux-2.5.59-lch2/fs/buffer.c	3 Feb 2003 11:06:59 -0000
@@ -2873,7 +2873,18 @@
 	bha->ratelimit = 0;
 	memset(bhl, 0, sizeof(*bhl));
 }
-	
+
+static void buffer_exit_cpu(int cpu)
+{
+	int i;
+	struct bh_lru *b = &per_cpu(bh_lrus, cpu);
+
+	for (i = 0; i < BH_LRU_SIZE; i++) {
+		brelse(b->bhs[i]);
+		b->bhs[i] = NULL;
+	}
+}
+
 static int __devinit buffer_cpu_notify(struct notifier_block *self, 
 				unsigned long action, void *hcpu)
 {
@@ -2881,6 +2892,9 @@
 	switch(action) {
 	case CPU_UP_PREPARE:
 		buffer_init_cpu(cpu);
+		break;
+	case CPU_OFFLINE:
+		buffer_exit_cpu(cpu);
 		break;
 	default:
 		break;