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Subject[PATCH][2.5][3/5] CPU Hotplug fs/
 buffer.c |   16 +++++++++++++++-
1 files changed, 15 insertions(+), 1 deletion(-)

Index: linux-2.5.61-trojan/fs/buffer.c
===================================================================
RCS file: /build/cvsroot/linux-2.5.61/fs/buffer.c,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 buffer.c
--- linux-2.5.61-trojan/fs/buffer.c 15 Feb 2003 12:32:24 -0000 1.1.1.1
+++ linux-2.5.61-trojan/fs/buffer.c 15 Feb 2003 19:35:22 -0000
@@ -2866,7 +2866,18 @@
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)
{
@@ -2874,6 +2885,9 @@
switch(action) {
case CPU_UP_PREPARE:
buffer_init_cpu(cpu);
+ break;
+ case CPU_OFFLINE:
+ buffer_exit_cpu(cpu);
break;
default:
break;
-
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