static void sg_kfree(struct scatterlist *sg, unsigned int nents)
{
if (nents == SG_MAX_SINGLE_ALLOC) {
kmemleak_free(sg);
free_page((unsigned long) sg);
} else
kfree(sg);
}
static void free_page_cgroup(void *addr)
{
if (is_vmalloc_addr(addr)) {
vfree(addr);
} else {
struct page *page = virt_to_page(addr);
size_t table_size =
sizeof(struct page_cgroup) * PAGES_PER_SECTION;
BUG_ON(PageReserved(page));
kmemleak_free(addr);
free_pages_exact(addr, table_size);
}
}
void kfree(const void *block)
{
struct page *sp;
trace_kfree(_RET_IP_, block);
if (unlikely(ZERO_OR_NULL_PTR(block)))
return;
kmemleak_free(block);
sp = virt_to_page(block);
if (PageSlab(sp)) {
int align = max_t(size_t, ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
unsigned int *m = (unsigned int *)(block - align);
slob_free(m, *m + align);
} else
__free_pages(sp, compound_order(sp));
}