Re: [PATCH 3/5] ptrace/arm: Revert "hw_breakpoints: Fix racy accessto ptrace breakpoints"

[Will Deacon]

On Sun, Apr 14, 2013 at 05:05:34PM +0100, Oleg Nesterov wrote:
> This reverts commit bf0b8f4b55e591ba417c2dbaff42769e1fc773b0.
> 
> The patch was fine but we can no longer race with SIGKILL after
> 9899d11f "ptrace: ensure arch_ptrace/ptrace_request can never race
> with SIGKILL", the __TASK_TRACED tracee can't be woken up and
> ->ptrace_bps[] can't go away.
> 
> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
> Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
> Cc: Will Deacon <will.deacon@xxxxxxx>
> ---
>  arch/arm/kernel/ptrace.c |    8 --------
>  1 files changed, 0 insertions(+), 8 deletions(-)

Looks fine to me. Seems as though I missed arch/arm64/, so nothing to change
there.

  Acked-by: Will Deacon <will.deacon@xxxxxxx>

Will
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