From fe091c208a40299fba40e62292a610fb91e44b4e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 8 Dec 2011 10:22:07 -0800 Subject: memblock: Kill memblock_init() memblock_init() initializes arrays for regions and memblock itself; however, all these can be done with struct initializers and memblock_init() can be removed. This patch kills memblock_init() and initializes memblock with struct initializer. The only difference is that the first dummy entries don't have .nid set to MAX_NUMNODES initially. This doesn't cause any behavior difference. Signed-off-by: Tejun Heo Cc: Benjamin Herrenschmidt Cc: Yinghai Lu Cc: Russell King Cc: Michal Simek Cc: Paul Mundt Cc: "David S. Miller" Cc: Guan Xuetao Cc: "H. Peter Anvin" --- mm/memblock.c | 48 ++++++++++++++---------------------------------- 1 file changed, 14 insertions(+), 34 deletions(-) (limited to 'mm/memblock.c') diff --git a/mm/memblock.c b/mm/memblock.c index e808df845bb..5bbb87f59ae 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -20,12 +20,23 @@ #include #include -struct memblock memblock __initdata_memblock; +static struct memblock_region memblock_memory_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock; +static struct memblock_region memblock_reserved_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock; + +struct memblock memblock __initdata_memblock = { + .memory.regions = memblock_memory_init_regions, + .memory.cnt = 1, /* empty dummy entry */ + .memory.max = INIT_MEMBLOCK_REGIONS, + + .reserved.regions = memblock_reserved_init_regions, + .reserved.cnt = 1, /* empty dummy entry */ + .reserved.max = INIT_MEMBLOCK_REGIONS, + + .current_limit = MEMBLOCK_ALLOC_ANYWHERE, +}; int memblock_debug __initdata_memblock; int memblock_can_resize __initdata_memblock; -static struct memblock_region memblock_memory_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock; -static struct memblock_region memblock_reserved_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock; /* inline so we don't get a warning when pr_debug is compiled out */ static inline const char *memblock_type_name(struct memblock_type *type) @@ -920,37 +931,6 @@ void __init memblock_analyze(void) memblock_can_resize = 1; } -void __init memblock_init(void) -{ - static int init_done __initdata = 0; - - if (init_done) - return; - init_done = 1; - - /* Hookup the initial arrays */ - memblock.memory.regions = memblock_memory_init_regions; - memblock.memory.max = INIT_MEMBLOCK_REGIONS; - memblock.reserved.regions = memblock_reserved_init_regions; - memblock.reserved.max = INIT_MEMBLOCK_REGIONS; - - /* Create a dummy zero size MEMBLOCK which will get coalesced away later. - * This simplifies the memblock_add() code below... - */ - memblock.memory.regions[0].base = 0; - memblock.memory.regions[0].size = 0; - memblock_set_region_node(&memblock.memory.regions[0], MAX_NUMNODES); - memblock.memory.cnt = 1; - - /* Ditto. */ - memblock.reserved.regions[0].base = 0; - memblock.reserved.regions[0].size = 0; - memblock_set_region_node(&memblock.reserved.regions[0], MAX_NUMNODES); - memblock.reserved.cnt = 1; - - memblock.current_limit = MEMBLOCK_ALLOC_ANYWHERE; -} - static int __init early_memblock(char *p) { if (p && strstr(p, "debug")) -- cgit v1.2.3