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[ARM] mm: move validation of membanks to one place 

The newly introduced sanity_check_meminfo() function should be
used to collect all validation of the meminfo array, which we
have in bootmem_init().  Move it there.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2008-09-30 19:29:25 +01:00 committed by Russell King
parent da46c79a54
commit eca73214c9
3 changed files with 19 additions and 12 deletions
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9
arch/arm/mm/init.c
View File

@ -333,14 +333,7 @@ bootmem_init_node(int node, int initrd_node, struct meminfo *mi)
void __init bootmem_init(struct meminfo *mi)
{
unsigned long memend_pfn = 0;
int node, initrd_node, i;
/*
* Invalidate the node number for empty or invalid memory banks
*/
for (i = 0; i < mi->nr_banks; i++)
if (mi->bank[i].size == 0 || mi->bank[i].node >= MAX_NUMNODES)
mi->bank[i].node = -1;
int node, initrd_node;
memcpy(&meminfo, mi, sizeof(meminfo));

8
arch/arm/mm/mmu.c
View File

@ -569,9 +569,10 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
static int __init check_membank_valid(struct membank *mb)
{
/*
* Check whether this memory region has non-zero size.
* Check whether this memory region has non-zero size or
* invalid node number.
*/
if (mb->size == 0)
if (mb->size == 0 || mb->node >= MAX_NUMNODES)
return 0;
/*
@ -605,8 +606,7 @@ static int __init check_membank_valid(struct membank *mb)
static void __init sanity_check_meminfo(struct meminfo *mi)
{
int i;
int j;
int i, j;
for (i = 0, j = 0; i < mi->nr_banks; i++) {
if (check_membank_valid(&mi->bank[i]))

14
arch/arm/mm/nommu.c
View File

@ -41,12 +41,26 @@ void __init reserve_node_zero(pg_data_t *pgdat)
BOOTMEM_DEFAULT);
}
static void __init sanity_check_meminfo(struct meminfo *mi)
{
int i, j;
for (i = 0, j = 0; i < mi->nr_banks; i++) {
struct membank *mb = &mi->bank[i];
if (mb->size != 0 && mb->node < MAX_NUMNODES)
mi->bank[j++] = mi->bank[i];
}
mi->nr_banks = j;
}
/*
* paging_init() sets up the page tables, initialises the zone memory
* maps, and sets up the zero page, bad page and bad page tables.
*/
void __init paging_init(struct meminfo *mi, struct machine_desc *mdesc)
{
sanity_check_meminfo(mi);
bootmem_init(mi);
}