fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

[platform/adaptation/renesas_rcar/renesas_kernel.git] / fs / reiserfs / dir.c

diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index 198dabf..133e935 100644 (file)
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -14,7 +14,8 @@
 extern const struct reiserfs_key MIN_KEY;
 
 static int reiserfs_readdir(struct file *, void *, filldir_t);
-static int reiserfs_dir_fsync(struct file *filp, int datasync);
+static int reiserfs_dir_fsync(struct file *filp, loff_t start, loff_t end,
+                             int datasync);
 
 const struct file_operations reiserfs_dir_operations = {
        .llseek = generic_file_llseek,
@@ -27,13 +28,21 @@ const struct file_operations reiserfs_dir_operations = {
 #endif
 };
 
-static int reiserfs_dir_fsync(struct file *filp, int datasync)
+static int reiserfs_dir_fsync(struct file *filp, loff_t start, loff_t end,
+                             int datasync)
 {
        struct inode *inode = filp->f_mapping->host;
        int err;
+
+       err = filemap_write_and_wait_range(inode->i_mapping, start, end);
+       if (err)
+               return err;
+
+       mutex_lock(&inode->i_mutex);
        reiserfs_write_lock(inode->i_sb);
        err = reiserfs_commit_for_inode(inode);
        reiserfs_write_unlock(inode->i_sb);
+       mutex_unlock(&inode->i_mutex);
        if (err < 0)
                return err;
        return 0;