[tip: x86/entry] x86: Wire up TIF_NOTIFY_SIGNAL
From: tip-bot2 for Jens Axboe
Date: Thu Oct 29 2020 - 06:35:53 EST
The following commit has been merged into the x86/entry branch of tip:
Commit-ID: c8d5ed67936fddbe2ae845fc80397718006322d7
Gitweb: https://git.kernel.org/tip/c8d5ed67936fddbe2ae845fc80397718006322d7
Author: Jens Axboe <axboe@xxxxxxxxx>
AuthorDate: Mon, 26 Oct 2020 14:32:29 -06:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Thu, 29 Oct 2020 11:29:51 +01:00
x86: Wire up TIF_NOTIFY_SIGNAL
The generic entry code has support for TIF_NOTIFY_SIGNAL already. Just
provide the TIF bit.
[ tglx: Adopted to other TIF changes in x86 ]
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20201026203230.386348-4-axboe@xxxxxxxxx
---
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 a12b964..06a1710 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -91,6 +91,7 @@ struct thread_info {
#define TIF_NEED_FPU_LOAD 14 /* load FPU on return to userspace */
#define TIF_NOCPUID 15 /* CPUID is not accessible in userland */
#define TIF_NOTSC 16 /* TSC is not accessible in userland */
+#define TIF_NOTIFY_SIGNAL 17 /* signal notifications exist */
#define TIF_SLD 18 /* Restore split lock detection on context switch */
#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
@@ -118,6 +119,7 @@ struct thread_info {
#define _TIF_NEED_FPU_LOAD (1 << TIF_NEED_FPU_LOAD)
#define _TIF_NOCPUID (1 << TIF_NOCPUID)
#define _TIF_NOTSC (1 << TIF_NOTSC)
+#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_SLD (1 << TIF_SLD)
#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP)