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| author | Dmitry Safonov <dsafonov@virtuozzo.com> | 2016-10-27 17:15:15 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-10-28 08:15:55 +0200 |
| commit | a01aa6c9f40fe03c82032e7f8b3bcf1e6c93ac0e (patch) | |
| tree | a4290516b10adc92b7cdb5117e461b2908e9908f /arch/x86/include/uapi/asm/prctl.h | |
| parent | b6959a362177053c1c90db6dc1af25b6bddd8548 (diff) | |
| download | linux-0-day-a01aa6c9f40fe03c82032e7f8b3bcf1e6c93ac0e.tar.gz linux-0-day-a01aa6c9f40fe03c82032e7f8b3bcf1e6c93ac0e.tar.xz | |
x86/prctl/uapi: Remove #ifdef for CHECKPOINT_RESTORE
As userspace knows nothing about kernel config, thus #ifdefs
around ABI prctl constants makes them invisible to userspace.
Let it be clean'n'simple: remove #ifdefs.
If kernel has CONFIG_CHECKPOINT_RESTORE disabled, sys_prctl()
will return -EINVAL for those prctls.
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Dmitry Safonov <dsafonov@virtuozzo.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Cc: 0x7f454c46@gmail.com
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mm@kvack.org
Cc: oleg@redhat.com
Fixes: 2eefd8789698 ("x86/arch_prctl/vdso: Add ARCH_MAP_VDSO_*")
Link: http://lkml.kernel.org/r/20161027141516.28447-2-dsafonov@virtuozzo.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/uapi/asm/prctl.h')
| -rw-r--r-- | arch/x86/include/uapi/asm/prctl.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/x86/include/uapi/asm/prctl.h b/arch/x86/include/uapi/asm/prctl.h index ae135de547f56..835aa51c7f6eb 100644 --- a/arch/x86/include/uapi/asm/prctl.h +++ b/arch/x86/include/uapi/asm/prctl.h @@ -6,10 +6,8 @@ #define ARCH_GET_FS 0x1003 #define ARCH_GET_GS 0x1004 -#ifdef CONFIG_CHECKPOINT_RESTORE -# define ARCH_MAP_VDSO_X32 0x2001 -# define ARCH_MAP_VDSO_32 0x2002 -# define ARCH_MAP_VDSO_64 0x2003 -#endif +#define ARCH_MAP_VDSO_X32 0x2001 +#define ARCH_MAP_VDSO_32 0x2002 +#define ARCH_MAP_VDSO_64 0x2003 #endif /* _ASM_X86_PRCTL_H */ |