diff options
Diffstat (limited to 'arch/mips/include/uapi/asm/shmbuf.h')
| -rw-r--r-- | arch/mips/include/uapi/asm/shmbuf.h | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/arch/mips/include/uapi/asm/shmbuf.h b/arch/mips/include/uapi/asm/shmbuf.h index f994438277bf..eb74d304b779 100644 --- a/arch/mips/include/uapi/asm/shmbuf.h +++ b/arch/mips/include/uapi/asm/shmbuf.h @@ -1,27 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ASM_SHMBUF_H #define _ASM_SHMBUF_H +#include <asm/ipcbuf.h> +#include <asm/posix_types.h> + /* * The shmid64_ds structure for the MIPS architecture. * Note extra padding because this structure is passed back and forth * between kernel and user space. * - * Pad space is left for: - * - 2 miscellaneous 32-bit rsp. 64-bit values + * As MIPS was lacking proper padding after shm_?time, we use 48 bits + * of the padding at the end to store a few additional bits of the time. + * libc implementations need to take care to convert this into a proper + * data structure when moving to 64-bit time_t. */ +#ifdef __mips64 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 */ - __kernel_time_t shm_dtime; /* last detach time */ - __kernel_time_t shm_ctime; /* last change time */ + __kernel_size_t shm_segsz; /* size of segment (bytes) */ + long shm_atime; /* last attach time */ + long shm_dtime; /* last detach time */ + long shm_ctime; /* last change time */ __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 __unused1; unsigned long __unused2; }; +#else +struct shmid64_ds { + struct ipc64_perm shm_perm; /* operation perms */ + __kernel_size_t shm_segsz; /* size of segment (bytes) */ + unsigned long shm_atime; /* last attach time */ + unsigned long shm_dtime; /* last detach time */ + unsigned long shm_ctime; /* last change time */ + __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 short shm_atime_high; + unsigned short shm_dtime_high; + unsigned short shm_ctime_high; + unsigned short __unused1; +}; +#endif struct shminfo64 { unsigned long shmmax; |