patch-2.3.26 linux/include/asm-mips/shmparam.h
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- Lines: 50
- Date:
Wed Nov 3 11:31:09 1999
- Orig file:
v2.3.25/linux/include/asm-mips/shmparam.h
- Orig date:
Fri Jun 25 17:37:53 1999
diff -u --recursive --new-file v2.3.25/linux/include/asm-mips/shmparam.h linux/include/asm-mips/shmparam.h
@@ -1,49 +1,9 @@
#ifndef __ASM_MIPS_SHMPARAM_H
#define __ASM_MIPS_SHMPARAM_H
-/* address range for shared memory attaches if no address passed to shmat() */
-#define SHM_RANGE_START 0x50000000
-#define SHM_RANGE_END 0x60000000
-
-/*
- * Format of a swap-entry for shared memory pages currently out in
- * swap space (see also mm/swap.c).
- *
- * SWP_TYPE = SHM_SWP_TYPE
- * SWP_OFFSET is used as follows:
- *
- * bits 0..6 : id of shared memory segment page belongs to (SHM_ID)
- * bits 7..21: index of page within shared memory segment (SHM_IDX)
- * (actually fewer bits get used since SHMMAX is so low)
- */
-
-/*
- * Keep _SHM_ID_BITS as low as possible since SHMMNI depends on it and
- * there is a static array of size SHMMNI.
- */
-#define _SHM_ID_BITS 7
-#define SHM_ID_MASK ((1<<_SHM_ID_BITS)-1)
-
-#define SHM_IDX_SHIFT (_SHM_ID_BITS)
-#define _SHM_IDX_BITS 15
-#define SHM_IDX_MASK ((1<<_SHM_IDX_BITS)-1)
-
-/*
- * _SHM_ID_BITS + _SHM_IDX_BITS must be <= 24 on the i386 and
- * SHMMAX <= (PAGE_SIZE << _SHM_IDX_BITS).
- */
-
-#define SHMMAX 0x2000000 /* max shared seg size (bytes) */
-/* Try not to change the default shipped SHMMAX - people rely on it */
-
-#define SHMMIN 1 /* really PAGE_SIZE */ /* min shared seg size (bytes) */
-#define SHMMNI (1<<_SHM_ID_BITS) /* max num of segs system wide */
-#define SHMALL /* max shm system wide (pages) */ \
- (1<<(_SHM_IDX_BITS+_SHM_ID_BITS))
/*
* This constant is very large but the ABI in it's wisdom says ...
*/
#define SHMLBA 0x40000 /* attach addr a multiple of this */
-#define SHMSEG SHMMNI /* max shared segs per process */
#endif /* __ASM_MIPS_SHMPARAM_H */
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