diff options
Diffstat (limited to 'include/linux/shm.h')
| -rw-r--r-- | include/linux/shm.h | 81 |
1 files changed, 1 insertions, 80 deletions
diff --git a/include/linux/shm.h b/include/linux/shm.h index edd0868..bcf8a6a 100644 --- a/include/linux/shm.h +++ b/include/linux/shm.h @@ -1,88 +1,11 @@ #ifndef _LINUX_SHM_H_ #define _LINUX_SHM_H_ -#include <linux/ipc.h> -#include <linux/errno.h> -#ifdef __KERNEL__ #include <asm/page.h> -#else -#include <unistd.h> -#endif - -/* - * SHMMAX, SHMMNI and SHMALL are upper limits are defaults which can - * be increased by sysctl - */ +#include <uapi/linux/shm.h> -#define SHMMAX 0x2000000 /* max shared seg size (bytes) */ -#define SHMMIN 1 /* min shared seg size (bytes) */ -#define SHMMNI 4096 /* max num of segs system wide */ -#ifdef __KERNEL__ #define SHMALL (SHMMAX/PAGE_SIZE*(SHMMNI/16)) /* max shm system wide (pages) */ -#else -#define SHMALL (SHMMAX/getpagesize()*(SHMMNI/16)) -#endif -#define SHMSEG SHMMNI /* max shared segs per process */ - -#ifdef __KERNEL__ #include <asm/shmparam.h> -#endif - -/* Obsolete, used only for backwards compatibility and libc5 compiles */ -struct shmid_ds { - struct ipc_perm shm_perm; /* operation perms */ - int 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_ipc_pid_t shm_cpid; /* pid of creator */ - __kernel_ipc_pid_t shm_lpid; /* pid of last operator */ - unsigned short shm_nattch; /* no. of current attaches */ - unsigned short shm_unused; /* compatibility */ - void *shm_unused2; /* ditto - used by DIPC */ - void *shm_unused3; /* unused */ -}; - -/* Include the definition of shmid64_ds and shminfo64 */ -#include <asm/shmbuf.h> - -/* permission flag for shmget */ -#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */ -#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */ - -/* mode for attach */ -#define SHM_RDONLY 010000 /* read-only access */ -#define SHM_RND 020000 /* round attach address to SHMLBA boundary */ -#define SHM_REMAP 040000 /* take-over region on attach */ -#define SHM_EXEC 0100000 /* execution access */ - -/* super user shmctl commands */ -#define SHM_LOCK 11 -#define SHM_UNLOCK 12 - -/* ipcs ctl commands */ -#define SHM_STAT 13 -#define SHM_INFO 14 - -/* Obsolete, used only for backwards compatibility */ -struct shminfo { - int shmmax; - int shmmin; - int shmmni; - int shmseg; - int shmall; -}; - -struct shm_info { - int used_ids; - unsigned long shm_tot; /* total allocated shm */ - unsigned long shm_rss; /* total resident shm */ - unsigned long shm_swp; /* total swapped shm */ - unsigned long swap_attempts; - unsigned long swap_successes; -}; - -#ifdef __KERNEL__ struct shmid_kernel /* private to the kernel */ { struct kern_ipc_perm shm_perm; @@ -127,6 +50,4 @@ static inline void exit_shm(struct task_struct *task) } #endif -#endif /* __KERNEL__ */ - #endif /* _LINUX_SHM_H_ */ |
