diff options
| author | Gabriel Krisman Bertazi <krisman@collabora.com> | 2020-10-03 23:25:27 -0400 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-10-26 13:46:46 +0100 |
| commit | 375d4bfda57392f0865dae051e1c4bd2700e8d71 (patch) | |
| tree | cc2258a1a4fef887012ee331b39f8fdeb35f81c5 /arch/x86/events/core.c | |
| parent | 3650b228f83adda7e5ee532e2b90429c03f7b9ec (diff) | |
perf/x86: Avoid TIF_IA32 when checking 64bit mode
In preparation to remove TIF_IA32, stop using it in perf events code.
Tested by running perf on 32-bit, 64-bit and x32 applications.
Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20201004032536.1229030-2-krisman@collabora.com
Diffstat (limited to 'arch/x86/events/core.c')
| -rw-r--r-- | arch/x86/events/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index a88c94d65693..77b963e5e70a 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -2602,7 +2602,7 @@ perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *ent struct stack_frame_ia32 frame; const struct stack_frame_ia32 __user *fp; - if (!test_thread_flag(TIF_IA32)) + if (user_64bit_mode(regs)) return 0; cs_base = get_segment_base(regs->cs); |