* [PATCH] m68k: add support for TIF_NOTIFY_SIGNAL
@ 2020-10-29 16:15 Jens Axboe
2020-10-30 8:52 ` Geert Uytterhoeven
0 siblings, 1 reply; 3+ messages in thread
From: Jens Axboe @ 2020-10-29 16:15 UTC (permalink / raw)
To: linux-m68k
Wire up TIF_NOTIFY_SIGNAL handling for m68k.
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
5.11 has support queued up for TIF_NOTIFY_SIGNAL, see this posting
for details:
https://lore.kernel.org/io-uring/20201026203230.386348-1-axboe@kernel.dk/
As part of that work, I'm adding TIF_NOTIFY_SIGNAL support to all archs,
as that will enable a set of cleanups once all of them support it. I'm
happy carrying this patch if need be, or it can be funelled through the
arch tree. Let me know.
arch/m68k/include/asm/thread_info.h | 1 +
arch/m68k/kernel/signal.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h
index 3689c6718c88..15a757073fa5 100644
--- a/arch/m68k/include/asm/thread_info.h
+++ b/arch/m68k/include/asm/thread_info.h
@@ -60,6 +60,7 @@ static inline struct thread_info *current_thread_info(void)
* bits 0-7 are tested at every exception exit
* bits 8-15 are also tested at syscall exit
*/
+#define TIF_NOTIFY_SIGNAL 4
#define TIF_NOTIFY_RESUME 5 /* callback before returning to user */
#define TIF_SIGPENDING 6 /* signal pending */
#define TIF_NEED_RESCHED 7 /* rescheduling necessary */
diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
index 46f91e0f6a08..349570f16a78 100644
--- a/arch/m68k/kernel/signal.c
+++ b/arch/m68k/kernel/signal.c
@@ -1133,7 +1133,8 @@ static void do_signal(struct pt_regs *regs)
void do_notify_resume(struct pt_regs *regs)
{
- if (test_thread_flag(TIF_SIGPENDING))
+ if (test_thread_flag(TIF_NOTIFY_SIGNAL) ||
+ test_thread_flag(TIF_SIGPENDING))
do_signal(regs);
if (test_thread_flag(TIF_NOTIFY_RESUME))
--
2.29.0
--
Jens Axboe
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] m68k: add support for TIF_NOTIFY_SIGNAL
2020-10-29 16:15 [PATCH] m68k: add support for TIF_NOTIFY_SIGNAL Jens Axboe
@ 2020-10-30 8:52 ` Geert Uytterhoeven
2020-10-30 13:22 ` Jens Axboe
0 siblings, 1 reply; 3+ messages in thread
From: Geert Uytterhoeven @ 2020-10-30 8:52 UTC (permalink / raw)
To: Jens Axboe; +Cc: linux-m68k
Hi Jens,
On Thu, Oct 29, 2020 at 5:16 PM Jens Axboe <axboe@kernel.dk> wrote:
> Wire up TIF_NOTIFY_SIGNAL handling for m68k.
>
> Cc: linux-m68k@lists.linux-m68k.org
> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Thanks for your patch!
> 5.11 has support queued up for TIF_NOTIFY_SIGNAL, see this posting
> for details:
>
> https://lore.kernel.org/io-uring/20201026203230.386348-1-axboe@kernel.dk/
>
> As part of that work, I'm adding TIF_NOTIFY_SIGNAL support to all archs,
> as that will enable a set of cleanups once all of them support it. I'm
> happy carrying this patch if need be, or it can be funelled through the
> arch tree. Let me know.
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
hence please pick it up. Thx!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] m68k: add support for TIF_NOTIFY_SIGNAL
2020-10-30 8:52 ` Geert Uytterhoeven
@ 2020-10-30 13:22 ` Jens Axboe
0 siblings, 0 replies; 3+ messages in thread
From: Jens Axboe @ 2020-10-30 13:22 UTC (permalink / raw)
To: Geert Uytterhoeven; +Cc: linux-m68k
On 10/30/20 2:52 AM, Geert Uytterhoeven wrote:
> Hi Jens,
>
> On Thu, Oct 29, 2020 at 5:16 PM Jens Axboe <axboe@kernel.dk> wrote:
>> Wire up TIF_NOTIFY_SIGNAL handling for m68k.
>>
>> Cc: linux-m68k@lists.linux-m68k.org
>> Signed-off-by: Jens Axboe <axboe@kernel.dk>
>
> Thanks for your patch!
>
>> 5.11 has support queued up for TIF_NOTIFY_SIGNAL, see this posting
>> for details:
>>
>> https://lore.kernel.org/io-uring/20201026203230.386348-1-axboe@kernel.dk/
>>
>> As part of that work, I'm adding TIF_NOTIFY_SIGNAL support to all archs,
>> as that will enable a set of cleanups once all of them support it. I'm
>> happy carrying this patch if need be, or it can be funelled through the
>> arch tree. Let me know.
>
> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
> hence please pick it up. Thx!
Thanks Geert! Added.
--
Jens Axboe
^ permalink raw reply [flat|nested] 3+ messages in thread
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2020-10-29 16:15 [PATCH] m68k: add support for TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-30 8:52 ` Geert Uytterhoeven
2020-10-30 13:22 ` Jens Axboe
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