Alex Shi effee4b9b3 x86/tlb: do flush_tlb_kernel_range by 'invlpg' ... This patch do flush_tlb_kernel_range by 'invlpg'. The performance pay and gain was analyzed in previous patch (x86/flush_tlb: try flush_tlb_single one by one in flush_tlb_range). In the testing: http://lkml.org/lkml/2012/6/21/10 The pay is mostly covered by long kernel path, but the gain is still quite clear, memory access in user APP can increase 30+% when kernel execute this funtion. Signed-off-by: Alex Shi <alex.shi@intel.com> Link: http://lkml.kernel.org/r/1340845344-27557-10-git-send-email-alex.shi@intel.com Signed-off-by: H. Peter Anvin <hpa@zytor.com>		2012-06-27 19:29:14 -07:00
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asm	x86/tlb: do flush_tlb_kernel_range by 'invlpg'	2012-06-27 19:29:14 -07:00