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| author | David S. Miller <davem@davemloft.net> | 2009-03-26 01:54:46 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-26 01:54:46 -0700 |
| commit | 86ee79c3dbd48d7430fd81edc1da3516c9f6dabc (patch) | |
| tree | d336e9b55772cc7db980620e2100b6e925f2bc64 /arch/sparc | |
| parent | 8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff) | |
| download | lwn-86ee79c3dbd48d7430fd81edc1da3516c9f6dabc.tar.gz lwn-86ee79c3dbd48d7430fd81edc1da3516c9f6dabc.zip | |
sparc64: Flush TLB before releasing pages.
tlb_flush_mmu() needs to flush pending TLB entries before
processing the mmu_gather ->pages list.
Noticed by Benjamin Herrenschmidt.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/include/asm/tlb_64.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h index ec81cdedef2c..ee38e731bfa6 100644 --- a/arch/sparc/include/asm/tlb_64.h +++ b/arch/sparc/include/asm/tlb_64.h @@ -57,6 +57,8 @@ static inline struct mmu_gather *tlb_gather_mmu(struct mm_struct *mm, unsigned i static inline void tlb_flush_mmu(struct mmu_gather *mp) { + if (!mp->fullmm) + flush_tlb_pending(); if (mp->need_flush) { free_pages_and_swap_cache(mp->pages, mp->pages_nr); mp->pages_nr = 0; @@ -78,8 +80,6 @@ static inline void tlb_finish_mmu(struct mmu_gather *mp, unsigned long start, un if (mp->fullmm) mp->fullmm = 0; - else - flush_tlb_pending(); /* keep the page table cache within bounds */ check_pgt_cache(); |