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2011 Jul 18
2
[PATCH tip/x86/mm] x86_32: calculate additional memory needed by the fixmap
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
When NR_CPUS increases the fixmap might need more than the page
allocated by head_32.S.
This patch introduces the logic to calculate the additional memory that
is going to be required by early_ioremap_page_table_range_init:
- enough memory to allocate the pte pages needed to cover the fixmap
virtual memory range, minus the single