Messages in this thread Patch in this message | | | Subject | [patch 006/198] arm: add comment about max_low_pfn/max_pfn | From | akpm@osdl ... | Date | Tue, 12 Apr 2005 03:30:37 -0700 |
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From: Russell King <rmk+lkml@arm.linux.org.uk>
Oddly, max_low_pfn/max_pfn end up being the number of pages in the system, rather than the maximum PFN on ARM. This doesn't seem to cause any problems, so just add a note about it.
Signed-off-by: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> ---
25-akpm/arch/arm/mm/init.c | 3 +++ 1 files changed, 3 insertions(+)
diff -puN arch/arm/mm/init.c~arm-add-comment-about-max_low_pfn-max_pfn arch/arm/mm/init.c --- 25/arch/arm/mm/init.c~arm-add-comment-about-max_low_pfn-max_pfn 2005-04-12 03:21:04.967381744 -0700 +++ 25-akpm/arch/arm/mm/init.c 2005-04-12 03:21:04.971381136 -0700 @@ -223,6 +223,9 @@ find_memend_and_nodes(struct meminfo *mi * This doesn't seem to be used by the Linux memory * manager any more. If we can get rid of it, we * also get rid of some of the stuff above as well. + * + * Note: max_low_pfn and max_pfn reflect the number + * of _pages_ in the system, not the maximum PFN. */ max_low_pfn = memend_pfn - O_PFN_DOWN(PHYS_OFFSET); max_pfn = memend_pfn - O_PFN_DOWN(PHYS_OFFSET); _ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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