fs: icache RCU free inodes

[firefly-linux-kernel-4.4.55.git] / fs / ext2 / super.c

diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 0901320671da20631092a1cc57113e9a0ef46d8d..e0c6380ff99272fac0b13998f4e60f87642d2e99 100644 (file)
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -161,11 +161,18 @@ static struct inode *ext2_alloc_inode(struct super_block *sb)
        return &ei->vfs_inode;
 }
 
-static void ext2_destroy_inode(struct inode *inode)
+static void ext2_i_callback(struct rcu_head *head)
 {
+       struct inode *inode = container_of(head, struct inode, i_rcu);
+       INIT_LIST_HEAD(&inode->i_dentry);
        kmem_cache_free(ext2_inode_cachep, EXT2_I(inode));
 }
 
+static void ext2_destroy_inode(struct inode *inode)
+{
+       call_rcu(&inode->i_rcu, ext2_i_callback);
+}
+
 static void init_once(void *foo)
 {
        struct ext2_inode_info *ei = (struct ext2_inode_info *) foo;
@@ -1356,10 +1363,10 @@ static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf)
        return 0;
 }
 
-static int ext2_get_sb(struct file_system_type *fs_type,
-       int flags, const char *dev_name, void *data, struct vfsmount *mnt)
+static struct dentry *ext2_mount(struct file_system_type *fs_type,
+       int flags, const char *dev_name, void *data)
 {
-       return get_sb_bdev(fs_type, flags, dev_name, data, ext2_fill_super, mnt);
+       return mount_bdev(fs_type, flags, dev_name, data, ext2_fill_super);
 }
 
 #ifdef CONFIG_QUOTA
@@ -1473,7 +1480,7 @@ out:
 static struct file_system_type ext2_fs_type = {
        .owner          = THIS_MODULE,
        .name           = "ext2",
-       .get_sb         = ext2_get_sb,
+       .mount          = ext2_mount,
        .kill_sb        = kill_block_super,
        .fs_flags       = FS_REQUIRES_DEV,
 };