diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/mmzone_32.h | 4 | ||||
| -rw-r--r-- | include/linux/bootmem.h | 17 |
2 files changed, 17 insertions, 4 deletions
diff --git a/include/asm-x86/mmzone_32.h b/include/asm-x86/mmzone_32.h index 5d6f4ce6e6d..274a59566c4 100644 --- a/include/asm-x86/mmzone_32.h +++ b/include/asm-x86/mmzone_32.h @@ -107,8 +107,8 @@ static inline int pfn_valid(int pfn) /* * Following are macros that are specific to this numa platform. */ -#define reserve_bootmem(addr, size) \ - reserve_bootmem_node(NODE_DATA(0), (addr), (size)) +#define reserve_bootmem(addr, size, flags) \ + reserve_bootmem_node(NODE_DATA(0), (addr), (size), (flags)) #define alloc_bootmem(x) \ __alloc_bootmem_node(NODE_DATA(0), (x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low(x) \ diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index 0365ec9fc0c..4e4e340592f 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h @@ -60,8 +60,20 @@ extern void *__alloc_bootmem_core(struct bootmem_data *bdata, unsigned long goal, unsigned long limit); +/* + * flags for reserve_bootmem (also if CONFIG_HAVE_ARCH_BOOTMEM_NODE, + * the architecture-specific code should honor this) + */ +#define BOOTMEM_DEFAULT 0 +#define BOOTMEM_EXCLUSIVE (1<<0) + #ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE -extern void reserve_bootmem(unsigned long addr, unsigned long size); +/* + * If flags is 0, then the return value is always 0 (success). If + * flags contains BOOTMEM_EXCLUSIVE, then -EBUSY is returned if the + * memory already was reserved. + */ +extern int reserve_bootmem(unsigned long addr, unsigned long size, int flags); #define alloc_bootmem(x) \ __alloc_bootmem(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low(x) \ @@ -84,7 +96,8 @@ extern unsigned long init_bootmem_node(pg_data_t *pgdat, unsigned long endpfn); extern void reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, - unsigned long size); + unsigned long size, + int flags); extern void free_bootmem_node(pg_data_t *pgdat, unsigned long addr, unsigned long size); |