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Use atomic operations to update the stat counters.

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This commit is contained in:
Dag-Erling Smørgrav 2001-01-23 01:11:11 +00:00
parent 0b5c9ae2f3
commit ac2e223868
1 changed files with 4 additions and 4 deletions
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8
sys/vm/vm_zone.c
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@ -139,7 +139,7 @@ zinitna(vm_zone_t z, vm_object_t obj, char *name, int size,
if (z->zflags & ZONE_INTERRUPT) {
totsize = round_page(z->zsize * nentries);
zone_kmem_kvaspace += totsize;
atomic_add_int(zone_kmem_kvaspace, totsize);
z->zkva = kmem_alloc_pageable(kernel_map, totsize);
if (z->zkva == 0)
return 0;
@ -279,7 +279,7 @@ _zget(vm_zone_t z)
pmap_kenter(zkva, VM_PAGE_TO_PHYS(m));
bzero((caddr_t) zkva, PAGE_SIZE);
z->zpagecount++;
zone_kmem_pages++;
atomic_add_int(zone_kmem_pages, 1);
cnt.v_wire_count++;
}
nitems = (i * PAGE_SIZE) / z->zsize;
@ -304,13 +304,13 @@ _zget(vm_zone_t z)
item = (void *) kmem_malloc(kmem_map, nbytes, M_WAITOK);
mtx_enter(&z->zmtx, MTX_DEF);
if (item != NULL)
zone_kmem_pages += z->zalloc;
atomic_add_int(zone_kmem_pages, z->zalloc);
} else {
mtx_exit(&z->zmtx, MTX_DEF);
item = (void *) kmem_alloc(kernel_map, nbytes);
mtx_enter(&z->zmtx, MTX_DEF);
if (item != NULL)
zone_kern_pages += z->zalloc;
atomic_add_int(zone_kern_pages, z->zalloc);
}
if (item != NULL) {
bzero(item, nbytes);