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mm: replace various uses of num_physpages by totalram_pages
Sizing of memory allocations shouldn't depend on the number of physical pages found in a system, as that generally includes (perhaps a huge amount of) non-RAM pages. The amount of what actually is usable as storage should instead be used as a basis here. Some of the calculations (i.e. those not intending to use high memory) should likely even use (totalram_pages - totalhigh_pages). Signed-off-by: Jan Beulich <[email protected]> Acked-by: Rusty Russell <[email protected]> Acked-by: Ingo Molnar <[email protected]> Cc: Dave Airlie <[email protected]> Cc: Kyle McMartin <[email protected]> Cc: Jeremy Fitzhardinge <[email protected]> Cc: Pekka Enberg <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Patrick McHardy <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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21 changed files with 38 additions and 41 deletions
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@ -496,7 +496,7 @@ EXPORT_SYMBOL(pagevec_lookup_tag);
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*/
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void __init swap_setup(void)
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{
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unsigned long megs = num_physpages >> (20 - PAGE_SHIFT);
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unsigned long megs = totalram_pages >> (20 - PAGE_SHIFT);
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#ifdef CONFIG_SWAP
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bdi_init(swapper_space.backing_dev_info);
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