linux-master/mm/vmalloc.c

1459 	unsigned long align, unsigned long vstart)
1463 	if (va->va_start > vstart)
1466 		nva_start_addr = ALIGN(vstart, align);
1470 			nva_start_addr < vstart)
1485 	unsigned long align, unsigned long vstart, bool adjust_search_size)
1501 				vstart < va->va_start) {
1504 			if (is_within_this_va(va, size, align, vstart))
1520 			 * due to "vstart" restriction or an alignment overhead
1525 				if (is_within_this_va(va, size, align, vstart))
1529 						vstart <= va->va_start) {
1531 					 * Shift the vstart forward. Please note, we update it with
1536 					vstart = va->va_start + 1;
1552 	unsigned long align, unsigned long vstart)
1557 		if (!is_within_this_va(va, size, align, vstart))
1571 	unsigned long vstart;
1575 	vstart = VMALLOC_START + rnd;
1577 	va_1 = find_vmap_lowest_match(root, size, align, vstart, false);
1578 	va_2 = find_vmap_lowest_linear_match(head, size, align, vstart);
1582 			va_1, va_2, vstart);
1724 		unsigned long vstart, unsigned long vend)
1729 	if (va->va_start > vstart)
1732 		nva_start_addr = ALIGN(vstart, align);
1753 	unsigned long vstart, unsigned long vend)
1765 	 *      specified [vstart:vend] interval and an alignment > PAGE_SIZE.
1768 	if (align <= PAGE_SIZE || (align > PAGE_SIZE && (vend - vstart) == size))
1771 	va = find_vmap_lowest_match(root, size, align, vstart, adjust_search_size);
1775 	nva_start_addr = va_alloc(va, root, head, size, align, vstart, vend);
1861 		unsigned long align, unsigned long vstart,
1882 			err |= (va->va_start < vstart);
1903 		unsigned long vstart, unsigned long vend,
1915 	if (vstart != VMALLOC_START || vend != VMALLOC_END ||
1920 	va = node_pool_del_va(id_to_node(*vn_id), size, align, vstart, vend);
1931  * vstart and vend.
1935 				unsigned long vstart, unsigned long vend,
1963 	va = node_alloc(size, align, vstart, vend, &addr, &vn_id);
1982 			size, align, vstart, vend);
1986 	trace_alloc_vmap_area(addr, size, align, vstart, vend, addr == vend);
2007 	BUG_ON(va->va_start < vstart);