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authorShaohua Li <shaohua.li@intel.com>2006-06-23 02:04:49 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 07:43:00 -0700
commit55b2355eefc2f160246226d4d69fed431173a4d5 (patch)
treeb5ed6dbf3d045443a12de412f9937a6b8dc20840 /arch/x86_64
parent968808b8956e332e556b1eae9b4f7df77518f53b (diff)
[PATCH] don't use flush_tlb_all in suspend time
flush_tlb_all uses on_each_cpu, which will disable/enable interrupt. In suspend/resume time, this will make interrupt wrongly enabled. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/kernel/acpi/sleep.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/acpi/sleep.c b/arch/x86_64/kernel/acpi/sleep.c
index 867a0ebee17..091bc79c888 100644
--- a/arch/x86_64/kernel/acpi/sleep.c
+++ b/arch/x86_64/kernel/acpi/sleep.c
@@ -35,6 +35,8 @@
#include <linux/pci.h>
#include <linux/bootmem.h>
#include <linux/acpi.h>
+#include <linux/cpumask.h>
+
#include <asm/mpspec.h>
#include <asm/io.h>
#include <asm/apic.h>
@@ -66,7 +68,8 @@ static void init_low_mapping(void)
pgd_t *slot0 = pgd_offset(current->mm, 0UL);
low_ptr = *slot0;
set_pgd(slot0, *pgd_offset(current->mm, PAGE_OFFSET));
- flush_tlb_all();
+ WARN_ON(num_online_cpus() != 1);
+ local_flush_tlb();
}
/**
@@ -92,7 +95,7 @@ int acpi_save_state_mem(void)
void acpi_restore_state_mem(void)
{
set_pgd(pgd_offset(current->mm, 0UL), low_ptr);
- flush_tlb_all();
+ local_flush_tlb();
}
/**