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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 5/6] x86: define _TIF_NOTIFY_SIGNAL
Date:   Mon,  5 Oct 2020 09:04:37 -0600
Message-Id: <20201005150438.6628-6-axboe@kernel.dk>
In-Reply-To: <20201005150438.6628-1-axboe@kernel.dk>
References: <20201005150438.6628-1-axboe@kernel.dk>
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The entry code is now ready for it, define _TIF_NOTIFY_SIGNAL for
x86 to enable processing of signal based notifications.

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 267701ae3d86..86ade67f21b7 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 */
@@ -123,6 +124,7 @@ 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)
-- 
2.28.0