mm: convert i_mmap_mutex to rwsem

[deliverable/linux.git] / fs / inode.c

diff --git a/fs/inode.c b/fs/inode.c
index 2ed95f7caa4f874ea97dbc7ebc698a4d0fc04674..ad60555b4768fa012dfeeba0661de6f7fc9addec 100644 (file)
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -346,7 +346,7 @@ void address_space_init_once(struct address_space *mapping)
        memset(mapping, 0, sizeof(*mapping));
        INIT_RADIX_TREE(&mapping->page_tree, GFP_ATOMIC);
        spin_lock_init(&mapping->tree_lock);
-       mutex_init(&mapping->i_mmap_mutex);
+       init_rwsem(&mapping->i_mmap_rwsem);
        INIT_LIST_HEAD(&mapping->private_list);
        spin_lock_init(&mapping->private_lock);
        mapping->i_mmap = RB_ROOT;