1 files changed, 6 insertions, 5 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 4dbb109022f3..b58afd97a180 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -201,8 +201,8 @@ extern unsigned long
 arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
                           unsigned long len, unsigned long pgoff,
                           unsigned long flags);
-extern void arch_unmap_area(struct vm_area_struct *area);
-extern void arch_unmap_area_topdown(struct vm_area_struct *area);
+extern void arch_unmap_area(struct mm_struct *, unsigned long);
+extern void arch_unmap_area_topdown(struct mm_struct *, unsigned long);
 
 #define set_mm_counter(mm, member, value) (mm)->_##member = (value)
 #define get_mm_counter(mm, member) ((mm)->_##member)
@@ -218,9 +218,10 @@ struct mm_struct {
         unsigned long (*get_unmapped_area) (struct file *filp,
                                 unsigned long addr, unsigned long len,
                                 unsigned long pgoff, unsigned long flags);
-        void (*unmap_area) (struct vm_area_struct *area);
-        unsigned long mmap_base;                /* base of mmap area */
-        unsigned long free_area_cache;          /* first hole */
+        void (*unmap_area) (struct mm_struct *mm, unsigned long addr);
+        unsigned long mmap_base;                /* base of mmap area */
+        unsigned long cached_hole_size;         /* if non-zero, the largest hole below free_area_cache */
+        unsigned long free_area_cache;          /* first hole of size cached_hole_size or larger */
         pgd_t * pgd;
         atomic_t mm_users;                      /* How many users with user space? */
         atomic_t mm_count;                      /* How many references to "struct mm_struct" (users count as 1) */