[patch 07/12] acpi: flush TLB when pagetable changed

[patch 07/12] acpi: flush TLB when pagetable changed

[akpm-3NddpPZAyC0]

From: Li Shaohua <shaohua.li-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Possibly it doesn't change anything here (it's low mem), but it's better to
fix it.

Signed-off-by: Andrew Morton <akpm-3NddpPZAyC0@public.gmane.org>
---

 25-akpm/arch/i386/kernel/acpi/sleep.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)

diff -puN arch/i386/kernel/acpi/sleep.c~acpi-flush-tlb-when-pagetable-changed arch/i386/kernel/acpi/sleep.c
--- 25/arch/i386/kernel/acpi/sleep.c~acpi-flush-tlb-when-pagetable-changed	2005-02-23 01:48:04.000000000 -0800
+++ 25-akpm/arch/i386/kernel/acpi/sleep.c	2005-02-23 01:48:04.000000000 -0800
@@ -8,7 +8,7 @@
 #include <linux/acpi.h>
 #include <linux/bootmem.h>
 #include <asm/smp.h>
-
+#include <asm/tlbflush.h>
 
 /* address in low memory of the wakeup routine. */
 unsigned long acpi_wakeup_address = 0;
@@ -27,6 +27,7 @@ static void init_low_mapping(pgd_t *pgd,
 		set_pgd(pgd, *(pgd+USER_PTRS_PER_PGD));
 		pgd_ofs++, pgd++;
 	}
+	flush_tlb_all();
 }
 
 /**
_


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Re: [patch 07/12] acpi: flush TLB when pagetable changed

[Len Brown]

Applied.

thanks,
-Len

On Wed, 2005-02-23 at 04:53, akpm-3NddpPZAyC0@public.gmane.org wrote:
> From: Li Shaohua <shaohua.li-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> 
> Possibly it doesn't change anything here (it's low mem), but it's
> better to
> fix it.
> 
> Signed-off-by: Andrew Morton <akpm-3NddpPZAyC0@public.gmane.org>
> ---
> 
>  25-akpm/arch/i386/kernel/acpi/sleep.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff -puN
> arch/i386/kernel/acpi/sleep.c~acpi-flush-tlb-when-pagetable-changed
> arch/i386/kernel/acpi/sleep.c
> ---
> 25/arch/i386/kernel/acpi/sleep.c~acpi-flush-tlb-when-pagetable-changed      2005-02-23 01:48:04.000000000 -0800
> +++ 25-akpm/arch/i386/kernel/acpi/sleep.c       2005-02-23
> 01:48:04.000000000 -0800
> @@ -8,7 +8,7 @@
>  #include <linux/acpi.h>
>  #include <linux/bootmem.h>
>  #include <asm/smp.h>
> -
> +#include <asm/tlbflush.h>
> 
>  /* address in low memory of the wakeup routine. */
>  unsigned long acpi_wakeup_address = 0;
> @@ -27,6 +27,7 @@ static void init_low_mapping(pgd_t *pgd,
>                 set_pgd(pgd, *(pgd+USER_PTRS_PER_PGD));
>                 pgd_ofs++, pgd++;
>         }
> +       flush_tlb_all();
>  }
> 
>  /**
> _
> 
> 



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