sanitize ->fsync() for affs

unfortunately, for affs (especially for affs directories) we have
no real way to keep track of metadata ownership.  So we have to
do more or less what file_fsync() does, but we do *not* need to
call write_super() there.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 13 insertions, 1 deletions

diff --git a/fs/affs/file.c b/fs/affs/file.c
index 9246cb4aa018..184e55c1c9ba 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -34,7 +34,7 @@ const struct file_operations affs_file_operations = {
         .mmap           = generic_file_mmap,
         .open           = affs_file_open,
         .release        = affs_file_release,
-        .fsync          = file_fsync,
+        .fsync          = affs_file_fsync,
         .splice_read    = generic_file_splice_read,
 };
 
@@ -915,3 +915,15 @@ affs_truncate(struct inode *inode)
         }
         affs_free_prealloc(inode);
 }
+
+int affs_file_fsync(struct file *filp, struct dentry *dentry, int datasync)
+{
+        struct inode * inode = dentry->d_inode;
+        int ret, err;
+
+        ret = write_inode_now(inode, 0);
+        err = sync_blockdev(inode->i_sb->s_bdev);
+        if (!ret)
+                ret = err;
+        return ret;
+}