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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-07 19:08:56 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-07 19:08:56 +0100 |
| commit | 5a89770daad83df74d77a8d34a1ffaedae565ce9 (patch) | |
| tree | 0d8ef70293a6ef969ba8b7718e59608337643d40 /mm/vmstat.c | |
| parent | c46c948260f41af18b277c1eb1895d788d3605dc (diff) | |
| parent | af7c951d76708c61b862463d579d76be757130bf (diff) | |
| download | kernel_samsung_smdk4412-5a89770daad83df74d77a8d34a1ffaedae565ce9.zip kernel_samsung_smdk4412-5a89770daad83df74d77a8d34a1ffaedae565ce9.tar.gz kernel_samsung_smdk4412-5a89770daad83df74d77a8d34a1ffaedae565ce9.tar.bz2 | |
Merge branches 'pxa-core' and 'pxa-machines' into pxa-all
Conflicts:
arch/arm/mach-pxa/Kconfig
arch/arm/mach-pxa/pxa25x.c
arch/arm/mach-pxa/pxa27x.c
Diffstat (limited to 'mm/vmstat.c')
| -rw-r--r-- | mm/vmstat.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c index b0d08e6..d7826af 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -516,9 +516,26 @@ static void pagetypeinfo_showblockcount_print(struct seq_file *m, continue; page = pfn_to_page(pfn); +#ifdef CONFIG_ARCH_FLATMEM_HAS_HOLES + /* + * Ordinarily, memory holes in flatmem still have a valid + * memmap for the PFN range. However, an architecture for + * embedded systems (e.g. ARM) can free up the memmap backing + * holes to save memory on the assumption the memmap is + * never used. The page_zone linkages are then broken even + * though pfn_valid() returns true. Skip the page if the + * linkages are broken. Even if this test passed, the impact + * is that the counters for the movable type are off but + * fragmentation monitoring is likely meaningless on small + * systems. + */ + if (page_zone(page) != zone) + continue; +#endif mtype = get_pageblock_migratetype(page); - count[mtype]++; + if (mtype < MIGRATE_TYPES) + count[mtype]++; } /* Print counts */ |