Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

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

diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 830e65d..2148b12 100644 (file)
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -7,7 +7,7 @@
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
-#include <linux/spinlock.h>
+#include <linux/mutex.h>
 #include <linux/memcontrol.h>
 
 /*
@@ -26,7 +26,7 @@
  */
 struct anon_vma {
        struct anon_vma *root;  /* Root of this anon_vma tree */
-       spinlock_t lock;        /* Serialize access to vma list */
+       struct mutex mutex;     /* Serialize access to vma list */
        /*
         * The refcount is taken on an anon_vma when there is no
         * guarantee that the vma of page tables will exist for
@@ -64,7 +64,7 @@ struct anon_vma_chain {
        struct vm_area_struct *vma;
        struct anon_vma *anon_vma;
        struct list_head same_vma;   /* locked by mmap_sem & page_table_lock */
-       struct list_head same_anon_vma; /* locked by anon_vma->lock */
+       struct list_head same_anon_vma; /* locked by anon_vma->mutex */
 };
 
 #ifdef CONFIG_MMU
@@ -93,24 +93,24 @@ static inline void vma_lock_anon_vma(struct vm_area_struct *vma)
 {
        struct anon_vma *anon_vma = vma->anon_vma;
        if (anon_vma)
-               spin_lock(&anon_vma->root->lock);
+               mutex_lock(&anon_vma->root->mutex);
 }
 
 static inline void vma_unlock_anon_vma(struct vm_area_struct *vma)
 {
        struct anon_vma *anon_vma = vma->anon_vma;
        if (anon_vma)
-               spin_unlock(&anon_vma->root->lock);
+               mutex_unlock(&anon_vma->root->mutex);
 }
 
 static inline void anon_vma_lock(struct anon_vma *anon_vma)
 {
-       spin_lock(&anon_vma->root->lock);
+       mutex_lock(&anon_vma->root->mutex);
 }
 
 static inline void anon_vma_unlock(struct anon_vma *anon_vma)
 {
-       spin_unlock(&anon_vma->root->lock);
+       mutex_unlock(&anon_vma->root->mutex);
 }
 
 /*
@@ -218,20 +218,7 @@ int try_to_munlock(struct page *);
 /*
  * Called by memory-failure.c to kill processes.
  */
-struct anon_vma *__page_lock_anon_vma(struct page *page);
-
-static inline struct anon_vma *page_lock_anon_vma(struct page *page)
-{
-       struct anon_vma *anon_vma;
-
-       __cond_lock(RCU, anon_vma = __page_lock_anon_vma(page));
-
-       /* (void) is needed to make gcc happy */
-       (void) __cond_lock(&anon_vma->root->lock, anon_vma);
-
-       return anon_vma;
-}
-
+struct anon_vma *page_lock_anon_vma(struct page *page);
 void page_unlock_anon_vma(struct anon_vma *anon_vma);
 int page_mapped_in_vma(struct page *page, struct vm_area_struct *vma);