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| author | Grant Likely <grant.likely@secretlab.ca> | 2011-05-20 00:43:00 -0600 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-05-20 00:43:00 -0600 |
| commit | 78fab4c04c76b8c9327541bd270f82b85b42bbf7 (patch) | |
| tree | b43006348a1ac15c28e6791d08646809761a2a4a /arch/arm/mm/init.c | |
| parent | 3b8a4dd3ebfcc647260ad5c39ef4f73eb3a6b155 (diff) | |
| parent | 61c4f2c81c61f73549928dfd9f3e8f26aa36a8cf (diff) | |
Merge commit 'v2.6.39' into spi/next
Diffstat (limited to 'arch/arm/mm/init.c')
| -rw-r--r-- | arch/arm/mm/init.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index e5f6fc428348..e591513bb53e 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -392,7 +392,7 @@ free_memmap(unsigned long start_pfn, unsigned long end_pfn) * Convert start_pfn/end_pfn to a struct page pointer. */ start_pg = pfn_to_page(start_pfn - 1) + 1; - end_pg = pfn_to_page(end_pfn); + end_pg = pfn_to_page(end_pfn - 1) + 1; /* * Convert to physical addresses, and @@ -426,6 +426,14 @@ static void __init free_unused_memmap(struct meminfo *mi) bank_start = bank_pfn_start(bank); +#ifdef CONFIG_SPARSEMEM + /* + * Take care not to free memmap entries that don't exist + * due to SPARSEMEM sections which aren't present. + */ + bank_start = min(bank_start, + ALIGN(prev_bank_end, PAGES_PER_SECTION)); +#endif /* * If we had a previous bank, and there is a space * between the current bank and the previous, free it. @@ -440,6 +448,12 @@ static void __init free_unused_memmap(struct meminfo *mi) */ prev_bank_end = ALIGN(bank_pfn_end(bank), MAX_ORDER_NR_PAGES); } + +#ifdef CONFIG_SPARSEMEM + if (!IS_ALIGNED(prev_bank_end, PAGES_PER_SECTION)) + free_memmap(prev_bank_end, + ALIGN(prev_bank_end, PAGES_PER_SECTION)); +#endif } static void __init free_highpages(void) |