Commit b61bfa3c authored by Johannes Weiner's avatar Johannes Weiner Committed by Linus Torvalds

mm: move bootmem descriptors definition to a single place

There are a lot of places that define either a single bootmem descriptor or an
array of them.  Use only one central array with MAX_NUMNODES items instead.
Signed-off-by: default avatarJohannes Weiner <hannes@saeurebad.de>
Acked-by: default avatarRalf Baechle <ralf@linux-mips.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 8b05c7e6
......@@ -19,7 +19,6 @@
#include <asm/pgalloc.h>
pg_data_t node_data[MAX_NUMNODES];
bootmem_data_t node_bdata[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
#undef DEBUG_DISCONTIG
......@@ -141,7 +140,7 @@ setup_memory_node(int nid, void *kernel_end)
printk(" not enough mem to reserve NODE_DATA");
return;
}
NODE_DATA(nid)->bdata = &node_bdata[nid];
NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
printk(" Detected node memory: start %8lu, end %8lu\n",
node_min_pfn, node_max_pfn);
......@@ -304,8 +303,9 @@ void __init paging_init(void)
dma_local_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
for_each_online_node(nid) {
unsigned long start_pfn = node_bdata[nid].node_boot_start >> PAGE_SHIFT;
unsigned long end_pfn = node_bdata[nid].node_low_pfn;
bootmem_data_t *bdata = &bootmem_node_data[nid];
unsigned long start_pfn = bdata->node_boot_start >> PAGE_SHIFT;
unsigned long end_pfn = bdata->node_low_pfn;
if (dma_local_pfn >= end_pfn - start_pfn)
zones_size[ZONE_DMA] = end_pfn - start_pfn;
......
......@@ -21,26 +21,24 @@
* Our node_data structure for discontiguous memory.
*/
static bootmem_data_t node_bootmem_data[MAX_NUMNODES];
pg_data_t discontig_node_data[MAX_NUMNODES] = {
{ .bdata = &node_bootmem_data[0] },
{ .bdata = &node_bootmem_data[1] },
{ .bdata = &node_bootmem_data[2] },
{ .bdata = &node_bootmem_data[3] },
{ .bdata = &bootmem_node_data[0] },
{ .bdata = &bootmem_node_data[1] },
{ .bdata = &bootmem_node_data[2] },
{ .bdata = &bootmem_node_data[3] },
#if MAX_NUMNODES == 16
{ .bdata = &node_bootmem_data[4] },
{ .bdata = &node_bootmem_data[5] },
{ .bdata = &node_bootmem_data[6] },
{ .bdata = &node_bootmem_data[7] },
{ .bdata = &node_bootmem_data[8] },
{ .bdata = &node_bootmem_data[9] },
{ .bdata = &node_bootmem_data[10] },
{ .bdata = &node_bootmem_data[11] },
{ .bdata = &node_bootmem_data[12] },
{ .bdata = &node_bootmem_data[13] },
{ .bdata = &node_bootmem_data[14] },
{ .bdata = &node_bootmem_data[15] },
{ .bdata = &bootmem_node_data[4] },
{ .bdata = &bootmem_node_data[5] },
{ .bdata = &bootmem_node_data[6] },
{ .bdata = &bootmem_node_data[7] },
{ .bdata = &bootmem_node_data[8] },
{ .bdata = &bootmem_node_data[9] },
{ .bdata = &bootmem_node_data[10] },
{ .bdata = &bootmem_node_data[11] },
{ .bdata = &bootmem_node_data[12] },
{ .bdata = &bootmem_node_data[13] },
{ .bdata = &bootmem_node_data[14] },
{ .bdata = &bootmem_node_data[15] },
#endif
};
......
......@@ -36,7 +36,6 @@ struct early_node_data {
struct ia64_node_data *node_data;
unsigned long pernode_addr;
unsigned long pernode_size;
struct bootmem_data bootmem_data;
unsigned long num_physpages;
#ifdef CONFIG_ZONE_DMA
unsigned long num_dma_physpages;
......@@ -76,7 +75,7 @@ static int __init build_node_maps(unsigned long start, unsigned long len,
int node)
{
unsigned long cstart, epfn, end = start + len;
struct bootmem_data *bdp = &mem_data[node].bootmem_data;
struct bootmem_data *bdp = &bootmem_node_data[node];
epfn = GRANULEROUNDUP(end) >> PAGE_SHIFT;
cstart = GRANULEROUNDDOWN(start);
......@@ -167,7 +166,7 @@ static void __init fill_pernode(int node, unsigned long pernode,
{
void *cpu_data;
int cpus = early_nr_cpus_node(node);
struct bootmem_data *bdp = &mem_data[node].bootmem_data;
struct bootmem_data *bdp = &bootmem_node_data[node];
mem_data[node].pernode_addr = pernode;
mem_data[node].pernode_size = pernodesize;
......@@ -224,7 +223,7 @@ static int __init find_pernode_space(unsigned long start, unsigned long len,
{
unsigned long epfn;
unsigned long pernodesize = 0, pernode, pages, mapsize;
struct bootmem_data *bdp = &mem_data[node].bootmem_data;
struct bootmem_data *bdp = &bootmem_node_data[node];
epfn = (start + len) >> PAGE_SHIFT;
......@@ -440,7 +439,7 @@ void __init find_memory(void)
efi_memmap_walk(find_max_min_low_pfn, NULL);
for_each_online_node(node)
if (mem_data[node].bootmem_data.node_low_pfn) {
if (bootmem_node_data[node].node_low_pfn) {
node_clear(node, memory_less_mask);
mem_data[node].min_pfn = ~0UL;
}
......@@ -460,7 +459,7 @@ void __init find_memory(void)
else if (node_isset(node, memory_less_mask))
continue;
bdp = &mem_data[node].bootmem_data;
bdp = &bootmem_node_data[node];
pernode = mem_data[node].pernode_addr;
pernodesize = mem_data[node].pernode_size;
map = pernode + pernodesize;
......
......@@ -20,7 +20,6 @@ extern char _end[];
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
static bootmem_data_t node_bdata[MAX_NUMNODES] __initdata;
pg_data_t m32r_node_data[MAX_NUMNODES];
......@@ -81,7 +80,7 @@ unsigned long __init setup_memory(void)
for_each_online_node(nid) {
mp = &mem_prof[nid];
NODE_DATA(nid)=(pg_data_t *)&m32r_node_data[nid];
NODE_DATA(nid)->bdata = &node_bdata[nid];
NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
min_pfn = mp->start_pfn;
max_pfn = mp->start_pfn + mp->pages;
bootmap_size = init_bootmem_node(NODE_DATA(nid), mp->free_pfn,
......@@ -163,4 +162,3 @@ unsigned long __init zone_sizes_init(void)
return holes;
}
......@@ -32,8 +32,6 @@
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
static bootmem_data_t __initdata bootmem_data[MAX_NUMNODES];
pg_data_t pg_data_map[MAX_NUMNODES];
EXPORT_SYMBOL(pg_data_map);
......@@ -58,7 +56,7 @@ void __init m68k_setup_node(int node)
pg_data_table[i] = pg_data_map + node;
}
#endif
pg_data_map[node].bdata = bootmem_data + node;
pg_data_map[node].bdata = bootmem_node_data + node;
node_set_online(node);
}
......
......@@ -33,8 +33,6 @@
#define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT)
#define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT)
static struct bootmem_data __initdata plat_node_bdata[MAX_COMPACT_NODES];
struct node_data *__node_data[MAX_COMPACT_NODES];
EXPORT_SYMBOL(__node_data);
......@@ -403,7 +401,7 @@ static void __init node_mem_init(cnodeid_t node)
*/
__node_data[node] = __va(slot_freepfn << PAGE_SHIFT);
NODE_DATA(node)->bdata = &plat_node_bdata[node];
NODE_DATA(node)->bdata = &bootmem_node_data[node];
NODE_DATA(node)->node_start_pfn = start_pfn;
NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn;
......
......@@ -36,7 +36,6 @@ extern int data_start;
#ifdef CONFIG_DISCONTIGMEM
struct node_map_data node_data[MAX_NUMNODES] __read_mostly;
bootmem_data_t bmem_data[MAX_NUMNODES] __read_mostly;
unsigned char pfnnid_map[PFNNID_MAP_MAX] __read_mostly;
#endif
......@@ -262,7 +261,7 @@ static void __init setup_bootmem(void)
#ifdef CONFIG_DISCONTIGMEM
for (i = 0; i < MAX_PHYSMEM_RANGES; i++) {
memset(NODE_DATA(i), 0, sizeof(pg_data_t));
NODE_DATA(i)->bdata = &bmem_data[i];
NODE_DATA(i)->bdata = &bootmem_node_data[i];
}
memset(pfnnid_map, 0xff, sizeof(pfnnid_map));
......
......@@ -39,7 +39,6 @@ EXPORT_SYMBOL(numa_cpu_lookup_table);
EXPORT_SYMBOL(numa_cpumask_lookup_table);
EXPORT_SYMBOL(node_data);
static bootmem_data_t __initdata plat_node_bdata[MAX_NUMNODES];
static int min_common_depth;
static int n_mem_addr_cells, n_mem_size_cells;
......@@ -816,7 +815,7 @@ void __init do_init_bootmem(void)
dbg("node %d\n", nid);
dbg("NODE_DATA() = %p\n", NODE_DATA(nid));
NODE_DATA(nid)->bdata = &plat_node_bdata[nid];
NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
NODE_DATA(nid)->node_start_pfn = start_pfn;
NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
......
......@@ -14,7 +14,6 @@
#include <linux/pfn.h>
#include <asm/sections.h>
static bootmem_data_t plat_node_bdata[MAX_NUMNODES];
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL_GPL(node_data);
......@@ -35,7 +34,7 @@ void __init setup_memory(void)
NODE_DATA(0) = pfn_to_kaddr(free_pfn);
memset(NODE_DATA(0), 0, sizeof(struct pglist_data));
free_pfn += PFN_UP(sizeof(struct pglist_data));
NODE_DATA(0)->bdata = &plat_node_bdata[0];
NODE_DATA(0)->bdata = &bootmem_node_data[0];
/* Set up node 0 */
setup_bootmem_allocator(free_pfn);
......@@ -66,7 +65,7 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
free_pfn += PFN_UP(sizeof(struct pglist_data));
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
NODE_DATA(nid)->bdata = &plat_node_bdata[nid];
NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
NODE_DATA(nid)->node_start_pfn = start_pfn;
NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
......
......@@ -788,7 +788,6 @@ int numa_cpu_lookup_table[NR_CPUS];
cpumask_t numa_cpumask_lookup_table[MAX_NUMNODES];
#ifdef CONFIG_NEED_MULTIPLE_NODES
static bootmem_data_t plat_node_bdata[MAX_NUMNODES];
struct mdesc_mblock {
u64 base;
......@@ -871,7 +870,7 @@ static void __init allocate_node_data(int nid)
NODE_DATA(nid) = __va(paddr);
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
NODE_DATA(nid)->bdata = &plat_node_bdata[nid];
NODE_DATA(nid)->bdata = &bootmem_node_data[nid];
#endif
p = NODE_DATA(nid);
......
......@@ -42,7 +42,6 @@
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL(node_data);
static bootmem_data_t node0_bdata;
/*
* numa interface - we expect the numa architecture specific code to have
......@@ -385,7 +384,7 @@ void __init initmem_init(unsigned long start_pfn,
for_each_online_node(nid)
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
NODE_DATA(0)->bdata = &node0_bdata;
NODE_DATA(0)->bdata = &bootmem_node_data[0];
setup_bootmem_allocator();
}
......
......@@ -23,8 +23,6 @@
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL(node_data);
static bootmem_data_t plat_node_bdata[MAX_NUMNODES];
struct memnode memnode;
s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
......@@ -198,7 +196,7 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
nodedata_phys + pgdat_size - 1);
memset(NODE_DATA(nodeid), 0, sizeof(pg_data_t));
NODE_DATA(nodeid)->bdata = &plat_node_bdata[nodeid];
NODE_DATA(nodeid)->bdata = &bootmem_node_data[nodeid];
NODE_DATA(nodeid)->node_start_pfn = start_pfn;
NODE_DATA(nodeid)->node_spanned_pages = last_pfn - start_pfn;
......
......@@ -38,6 +38,8 @@ typedef struct bootmem_data {
struct list_head list;
} bootmem_data_t;
extern bootmem_data_t bootmem_node_data[];
extern unsigned long bootmem_bootmap_pages(unsigned long);
extern unsigned long init_bootmem(unsigned long addr, unsigned long memend);
extern void free_bootmem(unsigned long addr, unsigned long size);
......
......@@ -36,6 +36,8 @@ static LIST_HEAD(bdata_list);
unsigned long saved_max_pfn;
#endif
bootmem_data_t bootmem_node_data[MAX_NUMNODES] __initdata;
/* return the number of _pages_ that will be allocated for the boot bitmap */
unsigned long __init bootmem_bootmap_pages(unsigned long pages)
{
......
......@@ -4040,9 +4040,7 @@ void __init set_dma_reserve(unsigned long new_dma_reserve)
}
#ifndef CONFIG_NEED_MULTIPLE_NODES
static bootmem_data_t contig_bootmem_data;
struct pglist_data contig_page_data = { .bdata = &contig_bootmem_data };
struct pglist_data contig_page_data = { .bdata = &bootmem_node_data[0] };
EXPORT_SYMBOL(contig_page_data);
#endif
......
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