diff options
Diffstat (limited to 'mm/bootmem.c')
| -rw-r--r-- | mm/bootmem.c | 45 |
1 files changed, 30 insertions, 15 deletions
diff --git a/mm/bootmem.c b/mm/bootmem.c index d7140c008ba..daf92713f7d 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -37,16 +37,6 @@ static struct list_head bdata_list __initdata = LIST_HEAD_INIT(bdata_list); static int bootmem_debug; -/* - * If an arch needs to apply workarounds to bootmem allocation, it can - * set CONFIG_HAVE_ARCH_BOOTMEM and define a wrapper around - * __alloc_bootmem_core(). - */ -#ifndef CONFIG_HAVE_ARCH_BOOTMEM -#define alloc_bootmem_core(bdata, size, align, goal, limit) \ - __alloc_bootmem_core((bdata), (size), (align), (goal), (limit)) -#endif - static int __init bootmem_debug_setup(char *buf) { bootmem_debug = 1; @@ -436,9 +426,9 @@ static unsigned long align_off(struct bootmem_data *bdata, unsigned long off, return ALIGN(base + off, align) - base; } -static void * __init __alloc_bootmem_core(struct bootmem_data *bdata, - unsigned long size, unsigned long align, - unsigned long goal, unsigned long limit) +static void * __init alloc_bootmem_core(struct bootmem_data *bdata, + unsigned long size, unsigned long align, + unsigned long goal, unsigned long limit) { unsigned long fallback = 0; unsigned long min, max, start, sidx, midx, step; @@ -538,17 +528,34 @@ find_block: return NULL; } +static void * __init alloc_arch_preferred_bootmem(bootmem_data_t *bdata, + unsigned long size, unsigned long align, + unsigned long goal, unsigned long limit) +{ +#ifdef CONFIG_HAVE_ARCH_BOOTMEM + bootmem_data_t *p_bdata; + + p_bdata = bootmem_arch_preferred_node(bdata, size, align, goal, limit); + if (p_bdata) + return alloc_bootmem_core(p_bdata, size, align, goal, limit); +#endif + return NULL; +} + static void * __init ___alloc_bootmem_nopanic(unsigned long size, unsigned long align, unsigned long goal, unsigned long limit) { bootmem_data_t *bdata; + void *region; restart: - list_for_each_entry(bdata, &bdata_list, list) { - void *region; + region = alloc_arch_preferred_bootmem(NULL, size, align, goal, limit); + if (region) + return region; + list_for_each_entry(bdata, &bdata_list, list) { if (goal && bdata->node_low_pfn <= PFN_DOWN(goal)) continue; if (limit && bdata->node_min_pfn >= PFN_DOWN(limit)) @@ -626,6 +633,10 @@ static void * __init ___alloc_bootmem_node(bootmem_data_t *bdata, { void *ptr; + ptr = alloc_arch_preferred_bootmem(bdata, size, align, goal, limit); + if (ptr) + return ptr; + ptr = alloc_bootmem_core(bdata, size, align, goal, limit); if (ptr) return ptr; @@ -682,6 +693,10 @@ void * __init __alloc_bootmem_node_nopanic(pg_data_t *pgdat, unsigned long size, { void *ptr; + ptr = alloc_arch_preferred_bootmem(pgdat->bdata, size, align, goal, 0); + if (ptr) + return ptr; + ptr = alloc_bootmem_core(pgdat->bdata, size, align, goal, 0); if (ptr) return ptr; |