From ca8a24a8727d8170c81d54e25d55804b59f5ea12 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 3 Oct 2007 20:42:45 -0700 Subject: vcompound: bit waitqueue support If bit_waitqueue is passed a vmalloc address then it must use vmalloc_head_page() instead of virt_to_page(). Signed-off-by: Christoph Lameter --- kernel/wait.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) Index: linux-2.6.25-rc8-mm2/kernel/wait.c =================================================================== --- linux-2.6.25-rc8-mm2.orig/kernel/wait.c 2008-04-01 12:44:26.000000000 -0700 +++ linux-2.6.25-rc8-mm2/kernel/wait.c 2008-04-11 20:23:32.000000000 -0700 @@ -9,6 +9,7 @@ #include #include #include +#include void init_waitqueue_head(wait_queue_head_t *q) { @@ -245,7 +246,7 @@ EXPORT_SYMBOL(wake_up_bit); wait_queue_head_t *bit_waitqueue(void *word, int bit) { const int shift = BITS_PER_LONG == 32 ? 5 : 6; - const struct zone *zone = page_zone(virt_to_page(word)); + const struct zone *zone = page_zone(vcompound_head_page(word)); unsigned long val = (unsigned long)word << shift | bit; return &zone->wait_table[hash_long(val, zone->wait_table_bits)];