Lines Matching refs:slab

23  *	Create's a slab for a single type of object in the kernel.
25  *	@param [in] slab Slab that the object belongs to.
31 Slab_Init(Slab *slab, const char *name, uintptr_t objsz, uintptr_t align)
35     slab->objsz = objsz;
36     slab->align = align;
37     slab->xmem = XMem_New();
38     slab->objs = 0;
39     slab->freeObjs = 0;
40     slab->allocs = 0;
41     slab->frees = 0;
42     LIST_INIT(&slab->freeList);
44     ASSERT(slab->xmem != NULL);
46     strncpy(&slab->name[0], name, SLAB_NAMELEN);
48     Spinlock_Init(&slab->lock, name, SPINLOCK_TYPE_NORMAL);
50     LIST_INSERT_HEAD(&slabList, slab, slabList);
56  *	Grow the slab to allocate new objects.
58  *	@param [in] slab Slab that we want to expand.
59  *	@retval -1 Failed to expand the slab.
63 SlabExtend(Slab *slab)
65     uintptr_t base = XMem_GetBase(slab->xmem);
66     uintptr_t len = XMem_GetLength(slab->xmem);
68     uintptr_t realObjSz = ROUNDUP(slab->objsz, slab->align);
75     if (!XMem_Allocate(slab->xmem, len + inc)) {
86 	LIST_INSERT_HEAD(&slab->freeList, elem, free);
89     slab->objs += objs;
90     slab->freeObjs += objs;
98  *	Free a slab object.
100  *	@param [in] slab Slab that the object belongs to.
105 Slab_Alloc(Slab *slab)
109     Spinlock_Lock(&slab->lock);
111     if (slab->freeObjs == 0)
112 	SlabExtend(slab);
114     elem = LIST_FIRST(&slab->freeList);
117 	slab->allocs++;
118 	slab->freeObjs--;
121     Spinlock_Unlock(&slab->lock);
129  *	Free a slab object.
131  *	@param [in] slab Slab that the object belongs to.
135 Slab_Free(Slab *slab, void *region)
137     Spinlock_Lock(&slab->lock);
140     LIST_INSERT_HEAD(&slab->freeList, elem, free);
141     slab->frees++;
142     slab->freeObjs++;
144     Spinlock_Unlock(&slab->lock);
150     Slab *slab;
153     LIST_FOREACH(slab, &slabList, slabList) {
154 	kprintf("%-36s %-10lld %-10lld %-10lld\n", slab->name,
155 		slab->objs - slab->freeObjs, slab->freeObjs, slab->objs);