add pfn_valid_within helper for sub-MAX_ORDER hole detection

[powerpc.git] / mm / mmap.c

diff --git a/mm/mmap.c b/mm/mmap.c
index 84f997d..88da687 100644 (file)
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -29,6 +29,7 @@
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
 #include <asm/tlb.h>
+#include <asm/mmu_context.h>
 
 #ifndef arch_mmap_check
 #define arch_mmap_check(addr, len, flags)      (0)
@@ -1979,6 +1980,9 @@ void exit_mmap(struct mm_struct *mm)
        unsigned long nr_accounted = 0;
        unsigned long end;
 
+       /* mm's last user has gone, and its about to be pulled down */
+       arch_exit_mmap(mm);
+
        lru_add_drain();
        flush_cache_mm(mm);
        tlb = tlb_gather_mmu(mm, 1);