x86/mm/tlb: Add freed_tables argument to flush_tlb_mm_range

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Add an argument to flush_tlb_mm_range to indicate whether page tables
are about to be freed after this TLB flush. This allows for an
optimization of flush_tlb_mm_range to skip CPUs in lazy TLB mode.

No functional changes.

Cc: npiggin@gmail.com
Cc: mingo@kernel.org
Cc: will.deacon@arm.com
Cc: songliubraving@fb.com
Cc: kernel-team@fb.com
Cc: luto@kernel.org
Cc: hpa@zytor.com
Signed-off-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180926035844.1420-6-riel@surriel.com

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This commit is contained in:

Rik van Riel 2018-09-25 23:58:42 -04:00 • committed by Peter Zijlstra

parent 7d49b28a80

commit 016c4d92cd

5 changed files with 11 additions and 8 deletions

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2

arch/x86/include/asm/tlb.h

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10

arch/x86/include/asm/tlbflush.h

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2

arch/x86/kernel/ldt.c

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2

arch/x86/kernel/vm86_32.c

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arch/x86/mm/tlb.c

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