aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/shm.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/shm.h')
-rw-r--r--include/linux/shm.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/shm.h b/include/linux/shm.h
index eeaed921a1d..eca6235a46c 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -3,7 +3,11 @@
3 3
4#include <linux/ipc.h> 4#include <linux/ipc.h>
5#include <linux/errno.h> 5#include <linux/errno.h>
6#ifdef __KERNEL__
6#include <asm/page.h> 7#include <asm/page.h>
8#else
9#include <unistd.h>
10#endif
7 11
8/* 12/*
9 * SHMMAX, SHMMNI and SHMALL are upper limits are defaults which can 13 * SHMMAX, SHMMNI and SHMALL are upper limits are defaults which can
@@ -13,7 +17,11 @@
13#define SHMMAX 0x2000000 /* max shared seg size (bytes) */ 17#define SHMMAX 0x2000000 /* max shared seg size (bytes) */
14#define SHMMIN 1 /* min shared seg size (bytes) */ 18#define SHMMIN 1 /* min shared seg size (bytes) */
15#define SHMMNI 4096 /* max num of segs system wide */ 19#define SHMMNI 4096 /* max num of segs system wide */
20#ifdef __KERNEL__
16#define SHMALL (SHMMAX/PAGE_SIZE*(SHMMNI/16)) /* max shm system wide (pages) */ 21#define SHMALL (SHMMAX/PAGE_SIZE*(SHMMNI/16)) /* max shm system wide (pages) */
22#else
23#define SHMALL (SHMMAX/getpagesize()*(SHMMNI/16))
24#endif
17#define SHMSEG SHMMNI /* max shared segs per process */ 25#define SHMSEG SHMMNI /* max shared segs per process */
18 26
19#ifdef __KERNEL__ 27#ifdef __KERNEL__