[CC+=linux-api]
On Mon, Dec 24, 2012 at 9:13 AM, Andrey Vagin <avagin@xxxxxxxxxx> wrote:
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>
> Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
> Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
> Cc: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
> CC: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
> Signed-off-by: Andrey Vagin <avagin@xxxxxxxxxx>
> ---
> include/linux/sched.h | 9 ++++++++-
> kernel/signal.c | 13 +++++++++----
> 2 files changed, 17 insertions(+), 5 deletions(-)
>
> diff --git a/include/linux/sched.h b/include/linux/sched.h
> index 0dd42a0..de9a4bf 100644
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@ -2159,7 +2159,14 @@ extern void flush_signals(struct task_struct *);
> extern void __flush_signals(struct task_struct *);
> extern void ignore_signals(struct task_struct *);
> extern void flush_signal_handlers(struct task_struct *, int force_default);
> -extern int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info);
> +extern int do_dequeue_signal(struct task_struct *tsk,
> + sigset_t *mask, siginfo_t *info, int queue);
> +
> +static inline int dequeue_signal(struct task_struct *tsk,
> + sigset_t *mask, siginfo_t *info)
> +{
> + return do_dequeue_signal(tsk, mask, info, 0);
> +}
>
> static inline int dequeue_signal_lock(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
> {
> diff --git a/kernel/signal.c b/kernel/signal.c
> index 0af8868..91bb76f2 100644
> --- a/kernel/signal.c
> +++ b/kernel/signal.c
> @@ -597,17 +597,22 @@ static int __dequeue_signal(struct sigpending *pending, sigset_t *mask,
> * Dequeue a signal and return the element to the caller, which is
> * expected to free it.
> *
> + * @queue: dequeue from a private queue, if a value is not positive
if a value is not positive ==> if value is nonpositive
> + * dequeue from a shared queue, if a value if not negative
if a value is not negative ==> if value is nonnegative
Thanks,
Michael
--
Michael Kerrisk Linux man-pages maintainer;
http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface", http://blog.man7.org/
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