From 7bfd124d6dae7d394e73753300594a81a022fe7d Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 18 Jun 2009 21:48:17 +0200 Subject: x86: convert trivial headers to asm-generic version For these nine header files, the asm-generic version should be semantically identical to what is in x86. Change the contents to be binary identical, for better review. Signed-off-by: Arnd Bergmann LKML-Reference: Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/shmbuf.h | 28 ++++++++++++++++++---------- 1 file changed, 18 insertions(+), 10 deletions(-) (limited to 'arch/x86/include/asm/shmbuf.h') diff --git a/arch/x86/include/asm/shmbuf.h b/arch/x86/include/asm/shmbuf.h index b51413b74971..5768fa60ac82 100644 --- a/arch/x86/include/asm/shmbuf.h +++ b/arch/x86/include/asm/shmbuf.h @@ -1,32 +1,40 @@ -#ifndef _ASM_X86_SHMBUF_H -#define _ASM_X86_SHMBUF_H +#ifndef __ASM_GENERIC_SHMBUF_H +#define __ASM_GENERIC_SHMBUF_H + +#include /* * The shmid64_ds structure for x86 architecture. * Note extra padding because this structure is passed back and forth * between kernel and user space. * - * Pad space on 32 bit is left for: + * shmid64_ds was originally meant to be architecture specific, but + * everyone just ended up making identical copies without specific + * optimizations, so we may just as well all use the same one. + * + * 64 bit architectures typically define a 64 bit __kernel_time_t, + * so they do not need the first two padding words. + * On big-endian systems, the padding is in the wrong place. + * + * + * Pad space is left for: * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values - * - * Pad space on 64 bit is left for: - * - 2 miscellaneous 64-bit values */ struct shmid64_ds { struct ipc64_perm shm_perm; /* operation perms */ size_t shm_segsz; /* size of segment (bytes) */ __kernel_time_t shm_atime; /* last attach time */ -#ifdef __i386__ +#if __BITS_PER_LONG != 64 unsigned long __unused1; #endif __kernel_time_t shm_dtime; /* last detach time */ -#ifdef __i386__ +#if __BITS_PER_LONG != 64 unsigned long __unused2; #endif __kernel_time_t shm_ctime; /* last change time */ -#ifdef __i386__ +#if __BITS_PER_LONG != 64 unsigned long __unused3; #endif __kernel_pid_t shm_cpid; /* pid of creator */ @@ -48,4 +56,4 @@ struct shminfo64 { unsigned long __unused4; }; -#endif /* _ASM_X86_SHMBUF_H */ +#endif /* __ASM_GENERIC_SHMBUF_H */ -- cgit From 73a2d096fdf23aa841f7595d114a11ec85a85e4d Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 18 Jun 2009 21:48:20 +0200 Subject: x86: remove all now-duplicate header files All files that have been made identical to the asm-generic version in the previous patches can now be removed, guaranteeing that this does not introduce semantic changes. Signed-off-by: Arnd Bergmann LKML-Reference: Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/shmbuf.h | 60 +------------------------------------------ 1 file changed, 1 insertion(+), 59 deletions(-) (limited to 'arch/x86/include/asm/shmbuf.h') diff --git a/arch/x86/include/asm/shmbuf.h b/arch/x86/include/asm/shmbuf.h index 5768fa60ac82..83c05fc2de38 100644 --- a/arch/x86/include/asm/shmbuf.h +++ b/arch/x86/include/asm/shmbuf.h @@ -1,59 +1 @@ -#ifndef __ASM_GENERIC_SHMBUF_H -#define __ASM_GENERIC_SHMBUF_H - -#include - -/* - * The shmid64_ds structure for x86 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * shmid64_ds was originally meant to be architecture specific, but - * everyone just ended up making identical copies without specific - * optimizations, so we may just as well all use the same one. - * - * 64 bit architectures typically define a 64 bit __kernel_time_t, - * so they do not need the first two padding words. - * On big-endian systems, the padding is in the wrong place. - * - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused1; -#endif - __kernel_time_t shm_dtime; /* last detach time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused2; -#endif - __kernel_time_t shm_ctime; /* last change time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused3; -#endif - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused4; - unsigned long __unused5; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* __ASM_GENERIC_SHMBUF_H */ +#include -- cgit