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From: Gabriel Krisman Bertazi <krisman@collabora.com>
To: luto@kernel.org, tglx@linutronix.de
Cc: hpa@zytor.com, bp@alien8.de, rric@kernel.org,
	peterz@infradead.org, mingo@redhat.com, x86@kernel.org,
	linux-kernel@vger.kernel.org,
	Gabriel Krisman Bertazi <krisman@collabora.com>,
	kernel@collabora.com
Subject: [PATCH 3/6] x86: oprofile: Avoid TIF_IA32 when checking 64bit mode
Date: Sat, 12 Sep 2020 03:05:50 -0400	[thread overview]
Message-ID: <20200912070553.330622-4-krisman@collabora.com> (raw)
In-Reply-To: <20200912070553.330622-1-krisman@collabora.com>

In preparation to remove TIF_IA32, stop using it in oprofile code.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
---
 arch/x86/oprofile/backtrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index a2488b6e27d6..1d8391fcca68 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -49,7 +49,7 @@ x86_backtrace_32(struct pt_regs * const regs, unsigned int depth)
 	struct stack_frame_ia32 *head;
 
 	/* User process is IA32 */
-	if (!current || !test_thread_flag(TIF_IA32))
+	if (!current || user_64bit_mode(regs))
 		return 0;
 
 	head = (struct stack_frame_ia32 *) regs->bp;
-- 
2.28.0


  parent reply	other threads:[~2020-09-12  7:06 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-12  7:05 [PATCH 0/6] Prepare for removal of TIF_IA32 and TIF_X32 Gabriel Krisman Bertazi
2020-09-12  7:05 ` [PATCH 1/6] x86: events: Avoid TIF_IA32 when checking 64bit mode Gabriel Krisman Bertazi
2020-09-14 10:33   ` peterz
2020-09-12  7:05 ` [PATCH 2/6] x86: Simplify compat syscall userspace allocation Gabriel Krisman Bertazi
2020-09-12  7:08   ` Christoph Hellwig
2020-09-12  7:54     ` Gabriel Krisman Bertazi
2020-09-12  7:05 ` Gabriel Krisman Bertazi [this message]
2020-09-12  7:05 ` [PATCH 4/6] x86: elf: Use e_machine to choose DLINFO in compat Gabriel Krisman Bertazi
2020-09-12  7:05 ` [PATCH 5/6] x86: elf: Use e_machine to select start_thread for x32 Gabriel Krisman Bertazi
2020-09-12  7:05 ` [PATCH 6/6] x86: elf: Use e_machine to select setup_additional_pages " Gabriel Krisman Bertazi

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