diff options
| author | David S. Miller <davem@davemloft.net> | 2009-03-26 01:28:53 -0700 |
|---|---|---|
| committer | Chris Wright <chrisw@sous-sol.org> | 2009-04-02 13:55:20 -0700 |
| commit | b6816b706138c3870f03115071872cad824f90b4 (patch) | |
| tree | 0d190627fcd0fef674111cbe8ed84bc0e719834a | |
| parent | 8796fc28c04f2ed6aacfd5df9c306312aaca1aef (diff) | |
sparc64: Flush TLB before releasing pages.
[ Upstream commit a552a42cfa91ab653128dff89a70c8dde7fed042 ]
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>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
| -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 ec81cdedef2..0aaa086fde1 100644 --- a/arch/sparc/include/asm/tlb_64.h +++ b/arch/sparc/include/asm/tlb_64.h @@ -58,6 +58,8 @@ 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->need_flush) { + if (!mp->fullmm) + flush_tlb_pending(); free_pages_and_swap_cache(mp->pages, mp->pages_nr); mp->pages_nr = 0; mp->need_flush = 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(); |