Commit bedcab87 authored by Dmitry Safonov's avatar Dmitry Safonov Committed by Greg Kroah-Hartman

x86/prctl/uapi: Remove #ifdef for CHECKPOINT_RESTORE

commit a01aa6c9 upstream.

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: default avatarPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: default avatarDmitry Safonov <dsafonov@virtuozzo.com>
Acked-by: default avatarAndy 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: 2eefd878 ("x86/arch_prctl/vdso: Add ARCH_MAP_VDSO_*")
Link: http://lkml.kernel.org/r/20161027141516.28447-2-dsafonov@virtuozzo.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e641c92f
...@@ -6,10 +6,8 @@ ...@@ -6,10 +6,8 @@
#define ARCH_GET_FS 0x1003 #define ARCH_GET_FS 0x1003
#define ARCH_GET_GS 0x1004 #define ARCH_GET_GS 0x1004
#ifdef CONFIG_CHECKPOINT_RESTORE #define ARCH_MAP_VDSO_X32 0x2001
# define ARCH_MAP_VDSO_X32 0x2001 #define ARCH_MAP_VDSO_32 0x2002
# define ARCH_MAP_VDSO_32 0x2002 #define ARCH_MAP_VDSO_64 0x2003
# define ARCH_MAP_VDSO_64 0x2003
#endif
#endif /* _ASM_X86_PRCTL_H */ #endif /* _ASM_X86_PRCTL_H */
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