diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-07-12 13:28:15 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-08-05 12:56:14 +1000 |
| commit | 3a9c2c81eb2024c136cc534df534f93682d516d0 (patch) | |
| tree | 376f3e894d82b8944e43cbbff038e379136d57ff /mm | |
| parent | 449e8df39d3f94a69deae8341f157f6ef5999015 (diff) | |
| download | lwn-3a9c2c81eb2024c136cc534df534f93682d516d0.tar.gz lwn-3a9c2c81eb2024c136cc534df534f93682d516d0.zip | |
memblock: Make memblock_find_region() out of memblock_alloc_region()
This function will be used to locate a free area to put the new memblock
arrays when attempting to resize them. memblock_alloc_region() is gone,
the two callsites now call memblock_add_region().
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
v2. Fix membase_alloc_nid_region() conversion
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memblock.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/mm/memblock.c b/mm/memblock.c index a925866e1455..c1d2060e213e 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -309,8 +309,8 @@ static phys_addr_t memblock_align_up(phys_addr_t addr, phys_addr_t size) return (addr + (size - 1)) & ~(size - 1); } -static phys_addr_t __init memblock_alloc_region(phys_addr_t start, phys_addr_t end, - phys_addr_t size, phys_addr_t align) +static phys_addr_t __init memblock_find_region(phys_addr_t start, phys_addr_t end, + phys_addr_t size, phys_addr_t align) { phys_addr_t base, res_base; long j; @@ -318,12 +318,8 @@ static phys_addr_t __init memblock_alloc_region(phys_addr_t start, phys_addr_t e base = memblock_align_down((end - size), align); while (start <= base) { j = memblock_overlaps_region(&memblock.reserved, base, size); - if (j < 0) { - /* this area isn't reserved, take it */ - if (memblock_add_region(&memblock.reserved, base, size) < 0) - base = ~(phys_addr_t)0; + if (j < 0) return base; - } res_base = memblock.reserved.regions[j].base; if (res_base < size) break; @@ -356,8 +352,9 @@ static phys_addr_t __init memblock_alloc_nid_region(struct memblock_region *mp, this_end = memblock_nid_range(start, end, &this_nid); if (this_nid == nid) { - phys_addr_t ret = memblock_alloc_region(start, this_end, size, align); - if (ret != ~(phys_addr_t)0) + phys_addr_t ret = memblock_find_region(start, this_end, size, align); + if (ret != ~(phys_addr_t)0 && + memblock_add_region(&memblock.reserved, ret, size) >= 0) return ret; } start = this_end; @@ -432,8 +429,9 @@ phys_addr_t __init __memblock_alloc_base(phys_addr_t size, phys_addr_t align, ph if (memblocksize < size) continue; base = min(memblockbase + memblocksize, max_addr); - res_base = memblock_alloc_region(memblockbase, base, size, align); - if (res_base != ~(phys_addr_t)0) + res_base = memblock_find_region(memblockbase, base, size, align); + if (res_base != ~(phys_addr_t)0 && + memblock_add_region(&memblock.reserved, res_base, size) >= 0) return res_base; } return 0; |