From: Jens Axboe <axboe@kernel.dk>
To: linux-kernel@vger.kernel.org, io-uring@vger.kernel.org
Cc: peterz@infradead.org, oleg@redhat.com, tglx@linutronix.de,
Jens Axboe <axboe@kernel.dk>
Subject: [PATCH 3/4] x86: wire up TIF_NOTIFY_SIGNAL
Date: Mon, 26 Oct 2020 14:32:29 -0600 [thread overview]
Message-ID: <20201026203230.386348-4-axboe@kernel.dk> (raw)
In-Reply-To: <20201026203230.386348-1-axboe@kernel.dk>
All we need to do is define _TIF_NOTIFY_SIGNAL, the generic entry code
already handles everything else for us.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
arch/x86/include/asm/thread_info.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 44733a4bfc42..b3b32f4c4d2d 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -93,6 +93,7 @@ struct thread_info {
#define TIF_NOTSC 16 /* TSC is not accessible in userland */
#define TIF_IA32 17 /* IA32 compatibility process */
#define TIF_SLD 18 /* Restore split lock detection on context switch */
+#define TIF_NOTIFY_SIGNAL 19 /* signal notifications exist */
#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
#define TIF_IO_BITMAP 22 /* uses I/O bitmap */
@@ -122,6 +123,7 @@ struct thread_info {
#define _TIF_NOTSC (1 << TIF_NOTSC)
#define _TIF_IA32 (1 << TIF_IA32)
#define _TIF_SLD (1 << TIF_SLD)
+#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP)
#define _TIF_FORCED_TF (1 << TIF_FORCED_TF)
--
2.29.0
next prev parent reply other threads:[~2020-10-26 20:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 20:32 [PATCHSET v6a 0/4] Add support for TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-26 20:32 ` [PATCH 1/4] kernel: add task_sigpending() helper Jens Axboe
2020-10-29 10:30 ` [tip: core/entry] signal: Add " tip-bot2 for Jens Axboe
2020-10-26 20:32 ` [PATCH 2/4] kernel: add support for TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-29 10:30 ` [tip: core/entry] entry: Add " tip-bot2 for Jens Axboe
2020-10-26 20:32 ` Jens Axboe [this message]
2020-10-29 10:35 ` [tip: x86/entry] x86: Wire up TIF_NOTIFY_SIGNAL tip-bot2 for Jens Axboe
2020-10-26 20:32 ` [PATCH 4/4] task_work: use TIF_NOTIFY_SIGNAL if available Jens Axboe
2020-10-29 10:30 ` [tip: core/entry] task_work: Use " tip-bot2 for Jens Axboe
-- strict thread matches above, loose matches on Subject: below --
2020-10-16 15:45 [PATCHSET v6] Add support for TIF_NOTIFY_SIGNAL Jens Axboe
2020-10-16 15:45 ` [PATCH 3/4] x86: wire up TIF_NOTIFY_SIGNAL Jens Axboe
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