patch-2.3.26 linux/include/asm-i386/shmparam.h

• Lines: 48
• Date: Wed Nov 3 11:31:09 1999
• Orig file: v2.3.25/linux/include/asm-i386/shmparam.h
• Orig date: Sun Nov 8 14:06:18 1998

diff -u --recursive --new-file v2.3.25/linux/include/asm-i386/shmparam.h linux/include/asm-i386/shmparam.h
@@ -1,46 +1,6 @@
 #ifndef _ASMI386_SHMPARAM_H
 #define _ASMI386_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))
-#define	SHMLBA PAGE_SIZE		/* attach addr a multiple of this */
-#define SHMSEG SHMMNI			/* max shared segs per process */
+#define	SHMLBA PAGE_SIZE		 /* attach addr a multiple of this */
 
 #endif /* _ASMI386_SHMPARAM_H */