From: Dmitry Safonov <dsafonov@virtuozzo.com>
To: <linux-kernel@vger.kernel.org>
Cc: <luto@amacapital.net>, <tglx@linutronix.de>, <mingo@redhat.com>,
<hpa@zytor.com>, <x86@kernel.org>, <rric@kernel.org>,
<oprofile-list@lists.sf.net>, <0x7f454c46@gmail.com>,
Dmitry Safonov <dsafonov@virtuozzo.com>
Subject: [PATCH 4/4] x86/oprofile: down with test_thread_flag(TIF_IA32)
Date: Thu, 14 Apr 2016 21:10:14 +0300 [thread overview]
Message-ID: <1460657414-12530-5-git-send-email-dsafonov@virtuozzo.com> (raw)
In-Reply-To: <1460657414-12530-1-git-send-email-dsafonov@virtuozzo.com>
As we have here full register set - just use user_64bit_mode
on it.
Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.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 cb31a4440e58..405dadaee74a 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -69,7 +69,7 @@ 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;
--
2.8.0
next prev parent reply other threads:[~2016-04-14 18:11 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-14 18:10 [PATCH 0/4] drop test_thread_flag checks Dmitry Safonov
2016-04-14 18:10 ` [PATCH 1/4] x86/events: down with test_thread_flag(TIF_IA32) Dmitry Safonov
2016-04-14 18:32 ` Andy Lutomirski
2016-04-20 11:15 ` Peter Zijlstra
2016-04-14 18:10 ` [PATCH 2/4] x86/intel: " Dmitry Safonov
2016-04-14 18:10 ` [PATCH 3/4] x86/intel lbr: " Dmitry Safonov
2016-04-14 19:29 ` Andy Lutomirski
2016-04-20 11:21 ` Peter Zijlstra
2016-04-20 13:43 ` Dmitry Safonov
2016-04-14 18:10 ` Dmitry Safonov [this message]
2016-04-14 19:29 ` [PATCH 4/4] x86/oprofile: " Andy Lutomirski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1460657414-12530-5-git-send-email-dsafonov@virtuozzo.com \
--to=dsafonov@virtuozzo.com \
--cc=0x7f454c46@gmail.com \
--cc=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@amacapital.net \
--cc=mingo@redhat.com \
--cc=oprofile-list@lists.sf.net \
--cc=rric@kernel.org \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®