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authorJens Axboe <axboe@kernel.dk>2020-10-09 23:35:34 +0300
committerJens Axboe <axboe@kernel.dk>2020-12-12 19:17:34 +0300
commit6d665a4d8b4264def0fbb72da3a500d9904ffe3e (patch)
treec53ccdf9b6202214fc45820b5c1846253607bbad /arch/c6x
parent5a9a8897c253a075805401d38d987ec1ac1824b6 (diff)
downloadlinux-6d665a4d8b4264def0fbb72da3a500d9904ffe3e.tar.xz
c6x: add support for TIF_NOTIFY_SIGNAL
Wire up TIF_NOTIFY_SIGNAL handling for c6x. Cc: linux-c6x-dev@linux-c6x.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'arch/c6x')
-rw-r--r--arch/c6x/include/asm/thread_info.h1
-rw-r--r--arch/c6x/kernel/asm-offsets.c1
-rw-r--r--arch/c6x/kernel/signal.c3
3 files changed, 4 insertions, 1 deletions
diff --git a/arch/c6x/include/asm/thread_info.h b/arch/c6x/include/asm/thread_info.h
index f70382844b96..dd8913d57189 100644
--- a/arch/c6x/include/asm/thread_info.h
+++ b/arch/c6x/include/asm/thread_info.h
@@ -82,6 +82,7 @@ struct thread_info *current_thread_info(void)
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */
+#define TIF_NOTIFY_SIGNAL 5 /* signal notifications exist */
#define TIF_MEMDIE 17 /* OOM killer killed process */
diff --git a/arch/c6x/kernel/asm-offsets.c b/arch/c6x/kernel/asm-offsets.c
index 0f8fde494875..4a264ef87dcb 100644
--- a/arch/c6x/kernel/asm-offsets.c
+++ b/arch/c6x/kernel/asm-offsets.c
@@ -116,6 +116,7 @@ void foo(void)
DEFINE(_TIF_NOTIFY_RESUME, (1<<TIF_NOTIFY_RESUME));
DEFINE(_TIF_SIGPENDING, (1<<TIF_SIGPENDING));
DEFINE(_TIF_NEED_RESCHED, (1<<TIF_NEED_RESCHED));
+ DEFINE(_TIF_NOTIFY_SIGNAL, (1<<TIF_NOTIFY_SIGNAL));
DEFINE(_TIF_ALLWORK_MASK, TIF_ALLWORK_MASK);
DEFINE(_TIF_WORK_MASK, TIF_WORK_MASK);
diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index a3f15b9a79da..862460c3b183 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -13,6 +13,7 @@
#include <linux/syscalls.h>
#include <linux/tracehook.h>
+#include <asm/asm-offsets.h>
#include <asm/ucontext.h>
#include <asm/cacheflush.h>
@@ -313,7 +314,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags,
int syscall)
{
/* deal with pending signal delivery */
- if (thread_info_flags & (1 << TIF_SIGPENDING))
+ if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))
do_signal(regs, syscall);
if (thread_info_flags & (1 << TIF_NOTIFY_RESUME))