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| author | Tejun Heo <tj@kernel.org> | 2011-12-08 10:22:08 -0800 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-12-08 10:22:08 -0800 |
| commit | 7fb0bc3f06fdc3a35e41bcea7a15e53d2515362f (patch) | |
| tree | 76da7b578a655915276c28047ec11fd678634d99 | |
| parent | 1aadc0560f46530f8a0f11055285b876a8a31770 (diff) | |
| download | linux-7fb0bc3f06fdc3a35e41bcea7a15e53d2515362f.tar.gz linux-7fb0bc3f06fdc3a35e41bcea7a15e53d2515362f.tar.bz2 linux-7fb0bc3f06fdc3a35e41bcea7a15e53d2515362f.zip | |
memblock: Implement memblock_add_node()
Implement memblock_add_node() which can add a new memblock memory
region with specific node ID.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Yinghai Lu <yinghai@kernel.org>
| -rw-r--r-- | include/linux/memblock.h | 1 | ||||
| -rw-r--r-- | mm/memblock.c | 20 |
2 files changed, 14 insertions, 7 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h index c5b3bbc75897..c7b68f489d46 100644 --- a/include/linux/memblock.h +++ b/include/linux/memblock.h @@ -52,6 +52,7 @@ int memblock_free_reserved_regions(void); int memblock_reserve_reserved_regions(void); void memblock_allow_resize(void); +int memblock_add_node(phys_addr_t base, phys_addr_t size, int nid); int memblock_add(phys_addr_t base, phys_addr_t size); int memblock_remove(phys_addr_t base, phys_addr_t size); int memblock_free(phys_addr_t base, phys_addr_t size); diff --git a/mm/memblock.c b/mm/memblock.c index a3ca95f35e03..ef4987b03afd 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -324,6 +324,7 @@ static void __init_memblock memblock_insert_region(struct memblock_type *type, * @type: memblock type to add new region into * @base: base address of the new region * @size: size of the new region + * @nid: nid of the new region * * Add new memblock region [@base,@base+@size) into @type. The new region * is allowed to overlap with existing ones - overlaps don't affect already @@ -334,7 +335,7 @@ static void __init_memblock memblock_insert_region(struct memblock_type *type, * 0 on success, -errno on failure. */ static int __init_memblock memblock_add_region(struct memblock_type *type, - phys_addr_t base, phys_addr_t size) + phys_addr_t base, phys_addr_t size, int nid) { bool insert = false; phys_addr_t obase = base; @@ -346,7 +347,7 @@ static int __init_memblock memblock_add_region(struct memblock_type *type, WARN_ON(type->cnt != 1 || type->total_size); type->regions[0].base = base; type->regions[0].size = size; - memblock_set_region_node(&type->regions[0], MAX_NUMNODES); + memblock_set_region_node(&type->regions[0], nid); type->total_size = size; return 0; } @@ -376,7 +377,7 @@ repeat: nr_new++; if (insert) memblock_insert_region(type, i++, base, - rbase - base, MAX_NUMNODES); + rbase - base, nid); } /* area below @rend is dealt with, forget about it */ base = min(rend, end); @@ -386,8 +387,7 @@ repeat: if (base < end) { nr_new++; if (insert) - memblock_insert_region(type, i, base, end - base, - MAX_NUMNODES); + memblock_insert_region(type, i, base, end - base, nid); } /* @@ -406,9 +406,15 @@ repeat: } } +int __init_memblock memblock_add_node(phys_addr_t base, phys_addr_t size, + int nid) +{ + return memblock_add_region(&memblock.memory, base, size, nid); +} + int __init_memblock memblock_add(phys_addr_t base, phys_addr_t size) { - return memblock_add_region(&memblock.memory, base, size); + return memblock_add_region(&memblock.memory, base, size, MAX_NUMNODES); } /** @@ -522,7 +528,7 @@ int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size) (void *)_RET_IP_); BUG_ON(0 == size); - return memblock_add_region(_rgn, base, size); + return memblock_add_region(_rgn, base, size, MAX_NUMNODES); } /** |