* [PATCH 5.10 39/63] riscv: add support for TIF_NOTIFY_SIGNAL
[not found] <20230103081308.548338576@linuxfoundation.org>
@ 2023-01-03 8:14 ` Greg Kroah-Hartman
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From: Greg Kroah-Hartman @ 2023-01-03 8:14 UTC (permalink / raw)
To: stable; +Cc: Greg Kroah-Hartman, patches, linux-riscv, Jens Axboe
From: Jens Axboe <axboe@kernel.dk>
[ Upstream commit 24a31b81e38309b1604f24520110aae1f83f3cbf ]
Wire up TIF_NOTIFY_SIGNAL handling for riscv.
Cc: linux-riscv@lists.infradead.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/riscv/include/asm/thread_info.h | 5 ++++-
arch/riscv/kernel/signal.c | 2 +-
2 files changed, 5 insertions(+), 2 deletions(-)
--- a/arch/riscv/include/asm/thread_info.h
+++ b/arch/riscv/include/asm/thread_info.h
@@ -80,6 +80,7 @@ struct thread_info {
#define TIF_SYSCALL_TRACEPOINT 6 /* syscall tracepoint instrumentation */
#define TIF_SYSCALL_AUDIT 7 /* syscall auditing */
#define TIF_SECCOMP 8 /* syscall secure computing */
+#define TIF_NOTIFY_SIGNAL 9 /* signal notifications exist */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
@@ -88,9 +89,11 @@ struct thread_info {
#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP (1 << TIF_SECCOMP)
+#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_WORK_MASK \
- (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | _TIF_NEED_RESCHED)
+ (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING | _TIF_NEED_RESCHED | \
+ _TIF_NOTIFY_SIGNAL)
#define _TIF_SYSCALL_WORK \
(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_TRACEPOINT | _TIF_SYSCALL_AUDIT | \
--- a/arch/riscv/kernel/signal.c
+++ b/arch/riscv/kernel/signal.c
@@ -312,7 +312,7 @@ asmlinkage __visible void do_notify_resu
unsigned long thread_info_flags)
{
/* Handle pending signal delivery */
- if (thread_info_flags & _TIF_SIGPENDING)
+ if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
do_signal(regs);
if (thread_info_flags & _TIF_NOTIFY_RESUME)
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