[PATCH v2 2/7] x86: add CPU field to struct thread_info

Ard Biesheuvel
2021-09-30T12:59:02Z

The CPU field will be moved back into thread_info even when
THREAD_INFO_IN_TASK is enabled, so add it back to x86's definition of
struct thread_info.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Mark Rutland <mark.rutland@arm.com>
---
arch/x86/include/asm/thread_info.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index cf132663c219..ebec69c35e95 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -57,6 +57,9 @@ struct thread_info {
unsigned long flags; /* low level flags */
unsigned long syscall_work; /* SYSCALL_WORK_ flags */
u32 status; /* thread synchronous flags */
+#ifdef CONFIG_SMP
+ u32 cpu; /* current CPU */
+#endif
};

#define INIT_THREAD_INFO(tsk) \
--
2.30.2