diff options
| author | Nitin Gupta <nitin.m.gupta@oracle.com> | 2017-03-31 15:48:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-06 12:03:30 -0700 |
| commit | 76811263b3fa6347699a446cddeb63badf3e6095 (patch) | |
| tree | 9327454f7bf709e09194fe0dfbe77704f340803b /arch/sparc/mm/tsb.c | |
| parent | 9ae34dbd8afd790cb5f52467e4f816434379eafa (diff) | |
| download | linux-stable-76811263b3fa6347699a446cddeb63badf3e6095.tar.gz linux-stable-76811263b3fa6347699a446cddeb63badf3e6095.tar.bz2 linux-stable-76811263b3fa6347699a446cddeb63badf3e6095.zip | |
sparc64: Fix memory corruption when THP is enabled
The memory corruption was happening due to incorrect
TLB/TSB flushing of hugepages.
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/mm/tsb.c')
| -rw-r--r-- | arch/sparc/mm/tsb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c index 0a04811f06b7..bedf08b22a47 100644 --- a/arch/sparc/mm/tsb.c +++ b/arch/sparc/mm/tsb.c @@ -122,7 +122,7 @@ void flush_tsb_user(struct tlb_batch *tb) spin_lock_irqsave(&mm->context.lock, flags); - if (tb->hugepage_shift < HPAGE_SHIFT) { + if (tb->hugepage_shift < REAL_HPAGE_SHIFT) { base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb; nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries; if (tlb_type == cheetah_plus || tlb_type == hypervisor) @@ -155,7 +155,7 @@ void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr, spin_lock_irqsave(&mm->context.lock, flags); - if (hugepage_shift < HPAGE_SHIFT) { + if (hugepage_shift < REAL_HPAGE_SHIFT) { base = (unsigned long) mm->context.tsb_block[MM_TSB_BASE].tsb; nentries = mm->context.tsb_block[MM_TSB_BASE].tsb_nentries; if (tlb_type == cheetah_plus || tlb_type == hypervisor) |