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Micro-optimize vmspace for 64-bit architectures: Colocate vm_refcnt and

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vm_exitingcnt so that alignment does not result in wasted space.
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alc 2004-07-06 17:35:10 +00:00
parent 28129f07e4
commit 4f5d8d196f
1 changed files with 1 additions and 1 deletions
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sys/vm/vm_map.h
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@ -220,7 +220,6 @@ vm_map_modflags(vm_map_t map, vm_flags_t set, vm_flags_t clear)
struct vmspace {
struct vm_map vm_map; /* VM address map */
struct pmap vm_pmap; /* private physical map */
int vm_refcnt; /* number of references */
struct shmmap_state *vm_shm; /* SYS5 shared memory private data XXX */
/* we copy between vm_startcopy and vm_endcopy on fork */
#define vm_startcopy vm_swrss
@ -233,6 +232,7 @@ struct vmspace {
caddr_t vm_maxsaddr; /* user VA at max stack growth */
#define vm_endcopy vm_exitingcnt
int vm_exitingcnt; /* several processes zombied in exit1 */
int vm_refcnt; /* number of references */
};
#ifdef _KERNEL