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sparc64: Flush TLB before releasing pages.

Browse source 
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>
This commit is contained in:
David S. Miller 2009-03-26 01:54:46 -07:00
parent 8e0ee43bc2
commit 86ee79c3db
1 changed files with 2 additions and 2 deletions
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4
arch/sparc/include/asm/tlb_64.h
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@ -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();