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| author | Johannes Weiner <jw@emlix.com> | 2009-03-04 18:21:29 +0300 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2009-04-03 10:39:18 +0400 |
| commit | 264da9f708b130122d881fa4570d1cd618440a73 (patch) | |
| tree | e2db6ac982344c4187dd0cb089bc9977752c7c0a /arch/xtensa/mm/init.c | |
| parent | 0bef42e5c061b4aa63cc488d11400a1ef8b8f5a2 (diff) | |
| download | linux-264da9f708b130122d881fa4570d1cd618440a73.tar.xz | |
xtensa: don't make bootmem bitmap larger than required
If min_low_pfn is non-zero, the bitmap reserved for bootmem is bigger
than needed. The number of pages bootmem has to maintain is the range
from min_low_pfn to max_low_pfn.
For now it has only been a theoretical mistake, min_low_pfn was always
zero.
Signed-off-by: Johannes Weiner <jw@emlix.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/mm/init.c')
| -rw-r--r-- | arch/xtensa/mm/init.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index 55b043a5918a..a534d52a57bd 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -130,7 +130,8 @@ void __init bootmem_init(void) /* Find an area to use for the bootmem bitmap. */ - bootmap_size = bootmem_bootmap_pages(max_low_pfn) << PAGE_SHIFT; + bootmap_size = bootmem_bootmap_pages(max_low_pfn - min_low_pfn); + bootmap_size <<= PAGE_SHIFT; bootmap_start = ~0; for (i=0; i<sysmem.nr_banks; i++) |