This is a note to let you know that I've just added the patch titled
x86: Move TS_COMPAT back to asm/thread_info.h
to the 5.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-move-ts_compat-back-to-asm-thread_info.h.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 66c1b6d74cd7035e85c426f0af4aede19e805c8a Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@xxxxxxxxxx>
Date: Mon, 1 Feb 2021 18:46:49 +0100
Subject: x86: Move TS_COMPAT back to asm/thread_info.h
From: Oleg Nesterov <oleg@xxxxxxxxxx>
commit 66c1b6d74cd7035e85c426f0af4aede19e805c8a upstream.
Move TS_COMPAT back to asm/thread_info.h, close to TS_I386_REGS_POKED.
It was moved to asm/processor.h by b9d989c7218a ("x86/asm: Move the
thread_info::status field to thread_struct"), then later 37a8f7c38339
("x86/asm: Move 'status' from thread_struct to thread_info") moved the
'status' field back but TS_COMPAT was forgotten.
Preparatory patch to fix the COMPAT case for get_nr_restart_syscall()
Fixes: 609c19a385c8 ("x86/ptrace: Stop setting TS_COMPAT in ptrace code")
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20210201174649.GA17880@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/include/asm/processor.h | 9 ---------
arch/x86/include/asm/thread_info.h | 9 +++++++++
2 files changed, 9 insertions(+), 9 deletions(-)
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -552,15 +552,6 @@ static inline void arch_thread_struct_wh
*size = fpu_kernel_xstate_size;
}
-/*
- * Thread-synchronous status.
- *
- * This is different from the flags in that nobody else
- * ever touches our thread-synchronous status, so we don't
- * have to worry about atomic accesses.
- */
-#define TS_COMPAT 0x0002 /* 32bit syscall active (64BIT)*/
-
static inline void
native_load_sp0(unsigned long sp0)
{
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -205,6 +205,15 @@ static inline int arch_within_stack_fram
#endif
+/*
+ * Thread-synchronous status.
+ *
+ * This is different from the flags in that nobody else
+ * ever touches our thread-synchronous status, so we don't
+ * have to worry about atomic accesses.
+ */
+#define TS_COMPAT 0x0002 /* 32bit syscall active (64BIT)*/
+
#ifdef CONFIG_COMPAT
#define TS_I386_REGS_POKED 0x0004 /* regs poked by 32-bit ptracer */
#endif
Patches currently in stable-queue which might be from oleg@xxxxxxxxxx are
queue-5.11/x86-introduce-ts_compat_restart-to-fix-get_nr_restart_syscall.patch
queue-5.11/x86-move-ts_compat-back-to-asm-thread_info.h.patch
