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SubjectRe: [PATCH 4/4] INIT_SIGHAND: use SIG_DFL instead of NULL
Quoting Oleg Nesterov (oleg@redhat.com):
> Cosmetic, no changes in the compiled code. Just s/NULL/SIG_DFL/ to make
> it more readable and grep-friendly.
>
> Note: probably SIG_IGN makes more sense, we could kill ignore_signals().
> But then kernel_init() should do flush_signal_handlers() before exec().
>
> Signed-off-by: Oleg Nesterov <oleg@redhat.com>

Acked-by: Serge E. Hallyn <serue@us.ibm.com>

> ---
>
> include/linux/init_task.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> --- 34-rc1/include/linux/init_task.h~4_INIT_SIGHAND_USE_SIG_DFL 2010-05-10 20:26:08.000000000 +0200
> +++ 34-rc1/include/linux/init_task.h 2010-05-10 21:06:03.000000000 +0200
> @@ -43,7 +43,7 @@ extern struct nsproxy init_nsproxy;
>
> #define INIT_SIGHAND(sighand) { \
> .count = ATOMIC_INIT(1), \
> - .action = { { { .sa_handler = NULL, } }, }, \
> + .action = { { { .sa_handler = SIG_DFL, } }, }, \
> .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \
> .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \
> }


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