diff options
Diffstat (limited to 'include/uapi/asm-generic/shmbuf.h')
| -rw-r--r-- | include/uapi/asm-generic/shmbuf.h | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/include/uapi/asm-generic/shmbuf.h b/include/uapi/asm-generic/shmbuf.h index 5768fa60ac82..2979b6dd2c56 100644 --- a/include/uapi/asm-generic/shmbuf.h +++ b/include/uapi/asm-generic/shmbuf.h @@ -1,7 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __ASM_GENERIC_SHMBUF_H #define __ASM_GENERIC_SHMBUF_H #include <asm/bitsperlong.h> +#include <asm/ipcbuf.h> +#include <asm/posix_types.h> /* * The shmid64_ds structure for x86 architecture. @@ -12,30 +15,29 @@ * 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. + * 64 bit architectures use a 64-bit long time field here, while + * 32 bit architectures have a pair of unsigned long values. + * On big-endian systems, the lower half 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; + __kernel_size_t shm_segsz; /* size of segment (bytes) */ +#if __BITS_PER_LONG == 64 + long shm_atime; /* last attach time */ + long shm_dtime; /* last detach time */ + long shm_ctime; /* last change time */ +#else + unsigned long shm_atime; /* last attach time */ + unsigned long shm_atime_high; + unsigned long shm_dtime; /* last detach time */ + unsigned long shm_dtime_high; + unsigned long shm_ctime; /* last change time */ + unsigned long shm_ctime_high; #endif __kernel_pid_t shm_cpid; /* pid of creator */ __kernel_pid_t shm_lpid; /* pid of last operator */ @@ -45,15 +47,15 @@ struct shmid64_ds { }; 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; + 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 */ |