mm: introduce get_user_pages_fast

[pandora-kernel.git] / include / linux / mm_types.h

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index af190ce..746f975 100644 (file)
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -42,7 +42,10 @@ struct page {
                                         * to show when page is mapped
                                         * & limit reverse map searches.
                                         */
-               unsigned int inuse;     /* SLUB: Nr of objects */
+               struct {                /* SLUB */
+                       u16 inuse;
+                       u16 objects;
+               };
        };
        union {
            struct {
@@ -156,6 +159,17 @@ struct vm_area_struct {
 #endif
 };
 
+struct core_thread {
+       struct task_struct *task;
+       struct core_thread *next;
+};
+
+struct core_state {
+       atomic_t nr_threads;
+       struct core_thread dumper;
+       struct completion startup;
+};
+
 struct mm_struct {
        struct vm_area_struct * mmap;           /* list of VMAs */
        struct rb_root mm_rb;
@@ -215,15 +229,29 @@ struct mm_struct {
 
        unsigned long flags; /* Must use atomic bitops to access the bits */
 
-       /* coredumping support */
-       int core_waiters;
-       struct completion *core_startup_done, core_done;
+       struct core_state *core_state; /* coredumping support */
 
        /* aio bits */
-       rwlock_t                ioctx_list_lock;
+       rwlock_t                ioctx_list_lock;        /* aio lock */
        struct kioctx           *ioctx_list;
-#ifdef CONFIG_CGROUP_MEM_RES_CTLR
-       struct mem_cgroup *mem_cgroup;
+#ifdef CONFIG_MM_OWNER
+       /*
+        * "owner" points to a task that is regarded as the canonical
+        * user/owner of this mm. All of the following must be true in
+        * order for it to be changed:
+        *
+        * current == mm->owner
+        * current->mm != mm
+        * new_owner->mm == mm
+        * new_owner->alloc_lock is held
+        */
+       struct task_struct *owner;
+#endif
+
+#ifdef CONFIG_PROC_FS
+       /* store ref to file /proc/<pid>/exe symlink points to */
+       struct file *exe_file;
+       unsigned long num_exe_file_vmas;
 #endif
 };