konrad at darnok
Jun 29, 2012, 10:04 PM
Post #3 of 4
(30 views)
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Re: [PATCH 18/40] autonuma: call autonuma_setup_new_exec()
[In reply to]
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On Thu, Jun 28, 2012 at 02:55:58PM +0200, Andrea Arcangeli wrote:
> This resets all per-thread and per-process statistics across exec
> syscalls or after kernel threads detached from the mm. The past
> statistical NUMA information is unlikely to be relevant for the future
> in these cases.
The previous patch mentioned that it can run in bypass mode. Is
this also able to do so? Meaning that these calls end up doing nops?
Thanks!
>
> Signed-off-by: Andrea Arcangeli <aarcange [at] redhat>
> ---
> fs/exec.c | 3 +++
> mm/mmu_context.c | 2 ++
> 2 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/fs/exec.c b/fs/exec.c
> index da27b91..146ced2 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -55,6 +55,7 @@
> #include <linux/pipe_fs_i.h>
> #include <linux/oom.h>
> #include <linux/compat.h>
> +#include <linux/autonuma.h>
>
> #include <asm/uaccess.h>
> #include <asm/mmu_context.h>
> @@ -1172,6 +1173,8 @@ void setup_new_exec(struct linux_binprm * bprm)
>
> flush_signal_handlers(current, 0);
> flush_old_files(current->files);
> +
> + autonuma_setup_new_exec(current);
> }
> EXPORT_SYMBOL(setup_new_exec);
>
> diff --git a/mm/mmu_context.c b/mm/mmu_context.c
> index 3dcfaf4..40f0f13 100644
> --- a/mm/mmu_context.c
> +++ b/mm/mmu_context.c
> @@ -7,6 +7,7 @@
> #include <linux/mmu_context.h>
> #include <linux/export.h>
> #include <linux/sched.h>
> +#include <linux/autonuma.h>
>
> #include <asm/mmu_context.h>
>
> @@ -58,5 +59,6 @@ void unuse_mm(struct mm_struct *mm)
> /* active_mm is still 'mm' */
> enter_lazy_tlb(mm, tsk);
> task_unlock(tsk);
> + autonuma_setup_new_exec(tsk);
> }
> EXPORT_SYMBOL_GPL(unuse_mm);
>
> --
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