* [PATCH] arc: add support for TIF_NOTIFY_SIGNAL
@ 2020-10-29 16:09 Jens Axboe
2020-10-30 18:47 ` Vineet Gupta
0 siblings, 1 reply; 5+ messages in thread
From: Jens Axboe @ 2020-10-29 16:09 UTC (permalink / raw)
To: linux-snps-arc
Wire up TIF_NOTIFY_SIGNAL handling for arc.
Cc: linux-arm-kernel@lists.infradead.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/arc/include/asm/thread_info.h | 4 +++-
arch/arc/kernel/entry.S | 2 +-
arch/arc/kernel/signal.c | 2 +-
3 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/arc/include/asm/thread_info.h b/arch/arc/include/asm/thread_info.h
index f9eef0e8f0b7..c0942c24d401 100644
--- a/arch/arc/include/asm/thread_info.h
+++ b/arch/arc/include/asm/thread_info.h
@@ -79,6 +79,7 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_SYSCALL_AUDIT 4 /* syscall auditing active */
+#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */
#define TIF_SYSCALL_TRACE 15 /* syscall trace active */
/* true if poll_idle() is polling TIF_NEED_RESCHED */
@@ -89,11 +90,12 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
+#define _TIF_NOTIFY_SIGNAL (1<<TIF_NOTIFY_SIGNAL)
#define _TIF_MEMDIE (1<<TIF_MEMDIE)
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
- _TIF_NOTIFY_RESUME)
+ _TIF_NOTIFY_RESUME | _TIF_NOTIFY_SIGNAL)
/*
* _TIF_ALLWORK_MASK includes SYSCALL_TRACE, but we don't need it.
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index ea00c8a17f07..cb3a0dbdb795 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -307,7 +307,7 @@ resume_user_mode_begin:
mov r0, sp ; pt_regs for arg to do_signal()/do_notify_resume()
GET_CURR_THR_INFO_FLAGS r9
- bbit0 r9, TIF_SIGPENDING, .Lchk_notify_resume
+ and.f 0, r9, TIF_SIGPENDING|TIF_NOTIFY_SIGNAL, .Lchk_notify_resume
; Normal Trap/IRQ entry only saves Scratch (caller-saved) regs
; in pt_reg since the "C" ABI (kernel code) will automatically
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index 2be55fb96d87..a78d8f745a67 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -362,7 +362,7 @@ void do_signal(struct pt_regs *regs)
restart_scall = in_syscall(regs) && syscall_restartable(regs);
- if (get_signal(&ksig)) {
+ if (test_thread_flag(TIF_SIGPENDING) && get_signal(&ksig)) {
if (restart_scall) {
arc_restart_syscall(&ksig.ka, regs);
syscall_wont_restart(regs); /* No more restarts */
--
2.29.0
--
Jens Axboe
_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] arc: add support for TIF_NOTIFY_SIGNAL
2020-10-29 16:09 [PATCH] arc: add support for TIF_NOTIFY_SIGNAL Jens Axboe
@ 2020-10-30 18:47 ` Vineet Gupta
2020-10-30 18:53 ` Jens Axboe
0 siblings, 1 reply; 5+ messages in thread
From: Vineet Gupta @ 2020-10-30 18:47 UTC (permalink / raw)
To: Jens Axboe, linux-snps-arc
On 10/29/20 9:09 AM, Jens Axboe wrote:
> Wire up TIF_NOTIFY_SIGNAL handling for arc.
>
> Cc:linux-arm-kernel@lists.infradead.org
Just to be clear, ARC and ARM seem to differ in 1 letter, they are in no
way related :-)
> Signed-off-by: Jens Axboe<axboe@kernel.dk>
> ---
>
> 5.11 has support queued up for TIF_NOTIFY_SIGNAL, see this posting
> for details:
>
> https://urldefense.com/v3/__https://lore.kernel.org/io-uring/20201026203230.386348-1-axboe@kernel.dk/__;!!A4F2R9G_pg!Oo4kwr6Yy8y5ByC8jIONjU28gLsqpyfzT10u5kfdsj2E-U2VIXQs7SvTmBRIkupZ$
TL'DR ignore this url rewrite.
Corporate mailer fudging the urls and I can't seem to find this msg in
my mailing group subscription in Thunderbird (although it shows up in
web achieve) hence need to reply from office account rather than the
newsgroup account.
> 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.
I'm fine either ways too, best to do whatever you are doing for other
arches. Although this patch per se is broken, please see below.
>
> GET_CURR_THR_INFO_FLAGS r9
> - bbit0 r9, TIF_SIGPENDING, .Lchk_notify_resume
> + and.f 0, r9, TIF_SIGPENDING|TIF_NOTIFY_SIGNAL, .Lchk_notify_resume
This is not correct, AND is a simple ALU instruction with format: AND
dest, src2, src1
With dest 0, it won't update any register. With .f suffix it would set
CC flag based on ALU operation which can subsequent used for a
predicated instruction such as BZ.
So you need something like
and.f 0, r9, TIF_SIGPENDING|TIF_NOTIFY_SIGNAL
bz .Lchk_notify_resume
>
> ; Normal Trap/IRQ entry only saves Scratch (caller-saved) regs
> ; in pt_reg since the "C" ABI (kernel code) will automatically
> diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
> index 2be55fb96d87..a78d8f745a67 100644
> --- a/arch/arc/kernel/signal.c
> +++ b/arch/arc/kernel/signal.c
> @@ -362,7 +362,7 @@ void do_signal(struct pt_regs *regs)
>
> restart_scall = in_syscall(regs) && syscall_restartable(regs);
>
> - if (get_signal(&ksig)) {
> + if (test_thread_flag(TIF_SIGPENDING) && get_signal(&ksig)) {
> if (restart_scall) {
> arc_restart_syscall(&ksig.ka, regs);
> syscall_wont_restart(regs); /* No more restarts */
I've not seen your entire patchset, but it seems we are now hitting
do_signal() for either of TIF_{SIGPENDING|NOTIFY_SIGNAL} but then only
handling signal for TIF_SIGPENDING, so why even bother to come here. Do
you plan to add additional arch handling later ?
Thx,
-Vineet
_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] arc: add support for TIF_NOTIFY_SIGNAL
2020-10-30 18:47 ` Vineet Gupta
@ 2020-10-30 18:53 ` Jens Axboe
2020-10-30 20:08 ` Vineet Gupta
0 siblings, 1 reply; 5+ messages in thread
From: Jens Axboe @ 2020-10-30 18:53 UTC (permalink / raw)
To: Vineet Gupta, linux-snps-arc
On 10/30/20 12:47 PM, Vineet Gupta wrote:
> On 10/29/20 9:09 AM, Jens Axboe wrote:
>> Wire up TIF_NOTIFY_SIGNAL handling for arc.
>>
>> Cc:linux-arm-kernel@lists.infradead.org
>
>
> Just to be clear, ARC and ARM seem to differ in 1 letter, they are in no
> way related :-)
Oops, fat fingered that one. Will update :-)
>> 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.
>
>
> I'm fine either ways too, best to do whatever you are doing for other
> arches. Although this patch per se is broken, please see below.
>
>
>>
>> GET_CURR_THR_INFO_FLAGS r9
>> - bbit0 r9, TIF_SIGPENDING, .Lchk_notify_resume
>> + and.f 0, r9, TIF_SIGPENDING|TIF_NOTIFY_SIGNAL, .Lchk_notify_resume
>
> This is not correct, AND is a simple ALU instruction with format: AND
> dest, src2, src1
> With dest 0, it won't update any register. With .f suffix it would set
> CC flag based on ALU operation which can subsequent used for a
> predicated instruction such as BZ.
>
> So you need something like
>
> and.f 0, r9, TIF_SIGPENDING|TIF_NOTIFY_SIGNAL
> bz .Lchk_notify_resume
Ah thanks, I'll make that change. Hard for me to test a lot of these, so
I really appreciate someone knowledgable taking a look at it.
>>
>> ; Normal Trap/IRQ entry only saves Scratch (caller-saved) regs
>> ; in pt_reg since the "C" ABI (kernel code) will automatically
>> diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
>> index 2be55fb96d87..a78d8f745a67 100644
>> --- a/arch/arc/kernel/signal.c
>> +++ b/arch/arc/kernel/signal.c
>> @@ -362,7 +362,7 @@ void do_signal(struct pt_regs *regs)
>>
>> restart_scall = in_syscall(regs) && syscall_restartable(regs);
>>
>> - if (get_signal(&ksig)) {
>> + if (test_thread_flag(TIF_SIGPENDING) && get_signal(&ksig)) {
>> if (restart_scall) {
>> arc_restart_syscall(&ksig.ka, regs);
>> syscall_wont_restart(regs); /* No more restarts */
>
>
> I've not seen your entire patchset, but it seems we are now hitting
> do_signal() for either of TIF_{SIGPENDING|NOTIFY_SIGNAL} but then only
> handling signal for TIF_SIGPENDING, so why even bother to come here. Do
> you plan to add additional arch handling later ?
Nope, that's all that's needed for each arch. The behavior you describe
is how it works. It makes it so that TIF_SIGPENDING will do the signal
delivery and syscall restart as it always has done, but
TIF_NOTIFY_SIGNAL will only do the syscall restart. The latter is the
intent, hence TIF_NOTIFY_SIGNAL provides a way to interrupt a process
and have it process task_work without going through signal delivery like
task_work with TWA_SIGNAL does today.
Updated version below:
commit 3c6239647d95d03d1436bc826a004791c3f04617
Author: Jens Axboe <axboe@kernel.dk>
Date: Mon Oct 12 07:15:37 2020 -0600
arc: add support for TIF_NOTIFY_SIGNAL
Wire up TIF_NOTIFY_SIGNAL handling for arc.
Cc: linux-snps-arc@lists.infradead.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/arch/arc/include/asm/thread_info.h b/arch/arc/include/asm/thread_info.h
index f9eef0e8f0b7..c0942c24d401 100644
--- a/arch/arc/include/asm/thread_info.h
+++ b/arch/arc/include/asm/thread_info.h
@@ -79,6 +79,7 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_SYSCALL_AUDIT 4 /* syscall auditing active */
+#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */
#define TIF_SYSCALL_TRACE 15 /* syscall trace active */
/* true if poll_idle() is polling TIF_NEED_RESCHED */
@@ -89,11 +90,12 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
+#define _TIF_NOTIFY_SIGNAL (1<<TIF_NOTIFY_SIGNAL)
#define _TIF_MEMDIE (1<<TIF_MEMDIE)
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
- _TIF_NOTIFY_RESUME)
+ _TIF_NOTIFY_RESUME | _TIF_NOTIFY_SIGNAL)
/*
* _TIF_ALLWORK_MASK includes SYSCALL_TRACE, but we don't need it.
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index ea00c8a17f07..1f5308abf36d 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -307,7 +307,8 @@ resume_user_mode_begin:
mov r0, sp ; pt_regs for arg to do_signal()/do_notify_resume()
GET_CURR_THR_INFO_FLAGS r9
- bbit0 r9, TIF_SIGPENDING, .Lchk_notify_resume
+ and.f 0, r9, TIF_SIGPENDING|TIF_NOTIFY_SIGNAL
+ bz .Lchk_notify_resume
; Normal Trap/IRQ entry only saves Scratch (caller-saved) regs
; in pt_reg since the "C" ABI (kernel code) will automatically
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index 2be55fb96d87..a78d8f745a67 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -362,7 +362,7 @@ void do_signal(struct pt_regs *regs)
restart_scall = in_syscall(regs) && syscall_restartable(regs);
- if (get_signal(&ksig)) {
+ if (test_thread_flag(TIF_SIGPENDING) && get_signal(&ksig)) {
if (restart_scall) {
arc_restart_syscall(&ksig.ka, regs);
syscall_wont_restart(regs); /* No more restarts */
--
Jens Axboe
_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] arc: add support for TIF_NOTIFY_SIGNAL
2020-10-30 18:53 ` Jens Axboe
@ 2020-10-30 20:08 ` Vineet Gupta
2020-10-30 20:36 ` Jens Axboe
0 siblings, 1 reply; 5+ messages in thread
From: Vineet Gupta @ 2020-10-30 20:08 UTC (permalink / raw)
To: Jens Axboe, Vineet Gupta, linux-snps-arc, linux-snps-arc; +Cc: open list
On 10/30/20 11:53 AM, Jens Axboe wrote:
>
> Ah thanks, I'll make that change. Hard for me to test a lot of these, so
> I really appreciate someone knowledgable taking a look at it.
Sure, glad to help, thx to you for writing the arch patches in first
place. It takes a bit of daring to venture in unchartered waters ;-)
These days it is super easy to get your hands on a ARC cross toolchain.
We don't have them shipping as regular distro packages just yet, but you
can download a prebuilt @
https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2020.09-release/arc_gnu_2020.09_prebuilt_glibc_le_archs_linux_install.tar.gz
Or you can just build upstream gcc + binutils for ARC if you so prefer.
>>>
>>> ; Normal Trap/IRQ entry only saves Scratch (caller-saved) regs
>>> ; in pt_reg since the "C" ABI (kernel code) will automatically
>>> diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
>>> index 2be55fb96d87..a78d8f745a67 100644
>>> --- a/arch/arc/kernel/signal.c
>>> +++ b/arch/arc/kernel/signal.c
>>> @@ -362,7 +362,7 @@ void do_signal(struct pt_regs *regs)
>>>
>>> restart_scall = in_syscall(regs) && syscall_restartable(regs);
>>>
>>> - if (get_signal(&ksig)) {
>>> + if (test_thread_flag(TIF_SIGPENDING) && get_signal(&ksig)) {
>>> if (restart_scall) {
>>> arc_restart_syscall(&ksig.ka, regs);
>>> syscall_wont_restart(regs); /* No more restarts */
>>
>> I've not seen your entire patchset, but it seems we are now hitting
>> do_signal() for either of TIF_{SIGPENDING|NOTIFY_SIGNAL} but then only
>> handling signal for TIF_SIGPENDING, so why even bother to come here. Do
>> you plan to add additional arch handling later ?
> Nope, that's all that's needed for each arch. The behavior you describe
> is how it works. It makes it so that TIF_SIGPENDING will do the signal
> delivery and syscall restart as it always has done, but
> TIF_NOTIFY_SIGNAL will only do the syscall restart. The latter is the
> intent, hence TIF_NOTIFY_SIGNAL provides a way to interrupt a process
> and have it process task_work without going through signal delivery like
> task_work with TWA_SIGNAL does today.
Nice, thx for explaining that.
>
> Updated version below:
>
>
> commit 3c6239647d95d03d1436bc826a004791c3f04617
> Author: Jens Axboe <axboe@kernel.dk>
> Date: Mon Oct 12 07:15:37 2020 -0600
>
> arc: add support for TIF_NOTIFY_SIGNAL
>
> Wire up TIF_NOTIFY_SIGNAL handling for arc.
>
> Cc: linux-snps-arc@lists.infradead.org
> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
>
> diff --git a/arch/arc/include/asm/thread_info.h b/arch/arc/include/asm/thread_info.h
> index f9eef0e8f0b7..c0942c24d401 100644
> --- a/arch/arc/include/asm/thread_info.h
> +++ b/arch/arc/include/asm/thread_info.h
> @@ -79,6 +79,7 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
> #define TIF_SIGPENDING 2 /* signal pending */
> #define TIF_NEED_RESCHED 3 /* rescheduling necessary */
> #define TIF_SYSCALL_AUDIT 4 /* syscall auditing active */
> +#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */
> #define TIF_SYSCALL_TRACE 15 /* syscall trace active */
>
> /* true if poll_idle() is polling TIF_NEED_RESCHED */
> @@ -89,11 +90,12 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
> #define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
> #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
> #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT)
> +#define _TIF_NOTIFY_SIGNAL (1<<TIF_NOTIFY_SIGNAL)
> #define _TIF_MEMDIE (1<<TIF_MEMDIE)
>
> /* work to do on interrupt/exception return */
> #define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
> - _TIF_NOTIFY_RESUME)
> + _TIF_NOTIFY_RESUME | _TIF_NOTIFY_SIGNAL)
>
> /*
> * _TIF_ALLWORK_MASK includes SYSCALL_TRACE, but we don't need it.
> diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
> index ea00c8a17f07..1f5308abf36d 100644
> --- a/arch/arc/kernel/entry.S
> +++ b/arch/arc/kernel/entry.S
> @@ -307,7 +307,8 @@ resume_user_mode_begin:
> mov r0, sp ; pt_regs for arg to do_signal()/do_notify_resume()
>
> GET_CURR_THR_INFO_FLAGS r9
> - bbit0 r9, TIF_SIGPENDING, .Lchk_notify_resume
> + and.f 0, r9, TIF_SIGPENDING|TIF_NOTIFY_SIGNAL
> + bz .Lchk_notify_resume
>
> ; Normal Trap/IRQ entry only saves Scratch (caller-saved) regs
> ; in pt_reg since the "C" ABI (kernel code) will automatically
> diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
> index 2be55fb96d87..a78d8f745a67 100644
> --- a/arch/arc/kernel/signal.c
> +++ b/arch/arc/kernel/signal.c
> @@ -362,7 +362,7 @@ void do_signal(struct pt_regs *regs)
>
> restart_scall = in_syscall(regs) && syscall_restartable(regs);
>
> - if (get_signal(&ksig)) {
> + if (test_thread_flag(TIF_SIGPENDING) && get_signal(&ksig)) {
> if (restart_scall) {
> arc_restart_syscall(&ksig.ka, regs);
> syscall_wont_restart(regs); /* No more restarts */
>
_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] arc: add support for TIF_NOTIFY_SIGNAL
2020-10-30 20:08 ` Vineet Gupta
@ 2020-10-30 20:36 ` Jens Axboe
0 siblings, 0 replies; 5+ messages in thread
From: Jens Axboe @ 2020-10-30 20:36 UTC (permalink / raw)
To: Vineet Gupta, linux-snps-arc; +Cc: open list
On 10/30/20 2:08 PM, Vineet Gupta wrote:
> On 10/30/20 11:53 AM, Jens Axboe wrote:
>>
>> Ah thanks, I'll make that change. Hard for me to test a lot of these, so
>> I really appreciate someone knowledgable taking a look at it.
>
> Sure, glad to help, thx to you for writing the arch patches in first
> place. It takes a bit of daring to venture in unchartered waters ;-)
Nice to do something different for a change! And another motivation is
that I can't drop some old dead code before all archs support
TIF_NOTIFY_SIGNAL.
> These days it is super easy to get your hands on a ARC cross toolchain.
> We don't have them shipping as regular distro packages just yet, but you
> can download a prebuilt @
> https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2020.09-release/arc_gnu_2020.09_prebuilt_glibc_le_archs_linux_install.tar.gz
>
> Or you can just build upstream gcc + binutils for ARC if you so prefer.
Thanks, that's very helpful. Unfortunately my distro didn't have
gcc+binutils packaged for arc, like it did for a lot of the other
targets.
>> commit 3c6239647d95d03d1436bc826a004791c3f04617
>> Author: Jens Axboe <axboe@kernel.dk>
>> Date: Mon Oct 12 07:15:37 2020 -0600
>>
>> arc: add support for TIF_NOTIFY_SIGNAL
>>
>> Wire up TIF_NOTIFY_SIGNAL handling for arc.
>>
>> Cc: linux-snps-arc@lists.infradead.org
>> Signed-off-by: Jens Axboe <axboe@kernel.dk>
>
> Acked-by: Vineet Gupta <vgupta@synopsys.com>
Added, thanks!
--
Jens Axboe
_______________________________________________
linux-snps-arc mailing list
linux-snps-arc@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-snps-arc
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-10-30 20:36 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-10-29 16:09 [PATCH] arc: add support for TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-30 18:47 ` Vineet Gupta
2020-10-30 18:53 ` Jens Axboe
2020-10-30 20:08 ` Vineet Gupta
2020-10-30 20:36 ` Jens Axboe
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).