x86/asm/entry, perf: Fix incorrect TIF_IA32 check in code_segment_base()

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We want to check whether user code is in 32-bit mode, not
whether the task is nominally 32-bit.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brad Spengler <spender@grsecurity.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/33e5107085ce347a8303560302b15c2cadd62c4c.1426728647.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Andy Lutomirski 2015-03-18 18:33:28 -07:00 • committed by Ingo Molnar

parent d31bf07f71

commit c56716af8d

1 changed files with 3 additions and 4 deletions

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arch/x86/kernel/cpu/perf_event.c

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