diff options
Diffstat (limited to 'arch/ia64/mm/fault.c')
| -rw-r--r-- | arch/ia64/mm/fault.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c index af7eb08..d98ec49 100644 --- a/arch/ia64/mm/fault.c +++ b/arch/ia64/mm/fault.c @@ -60,6 +60,9 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re struct siginfo si; unsigned long mask; + /* mmap_sem is performance critical.... */ + prefetchw(&mm->mmap_sem); + /* * If we're in an interrupt or have no user context, we must not take the fault.. */ |