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| author | Peter Zijlstra <peterz@infradead.org> | 2018-08-22 17:30:13 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 18:22:04 -0700 |
| commit | 52a288c736669851f166544d4a0b93e1090d7e9b (patch) | |
| tree | c65ef4f76102052b4ffe0ec40bec83578ea71c2f /include/asm-generic/tlb.h | |
| parent | 815f0ddb346c196018d4d8f8f55c12b83da1de3f (diff) | |
| download | lwn-52a288c736669851f166544d4a0b93e1090d7e9b.tar.gz lwn-52a288c736669851f166544d4a0b93e1090d7e9b.zip | |
x86/mm/tlb: Revert the recent lazy TLB patches
Revert commits:
95b0e6357d3e x86/mm/tlb: Always use lazy TLB mode
64482aafe55f x86/mm/tlb: Only send page table free TLB flush to lazy TLB CPUs
ac0315896970 x86/mm/tlb: Make lazy TLB mode lazier
61d0beb5796a x86/mm/tlb: Restructure switch_mm_irqs_off()
2ff6ddf19c0e x86/mm/tlb: Leave lazy TLB mode at page table free time
In order to simplify the TLB invalidate fixes for x86 and unify the
parts that need backporting. We'll try again later.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-generic/tlb.h')
| -rw-r--r-- | include/asm-generic/tlb.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index e811ef7b8350..3063125197ad 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -303,14 +303,4 @@ static inline void tlb_remove_check_page_size_change(struct mmu_gather *tlb, #define tlb_migrate_finish(mm) do {} while (0) -/* - * Used to flush the TLB when page tables are removed, when lazy - * TLB mode may cause a CPU to retain intermediate translations - * pointing to about-to-be-freed page table memory. - */ -#ifndef HAVE_TLB_FLUSH_REMOVE_TABLES -#define tlb_flush_remove_tables(mm) do {} while (0) -#define tlb_flush_remove_tables_local(mm) do {} while (0) -#endif - #endif /* _ASM_GENERIC__TLB_H */ |