udf: Fix BUG_ON() in destroy_inode()
udf_clear_inode() can leave behind buffers on mapping's i_private list (when
we truncated preallocation). Call invalidate_inode_buffers() so that the list
is properly cleaned-up before we return from udf_clear_inode(). This is ugly
and suggest that we should cleanup preallocation earlier than in clear_inode()
but currently there's no such call available since drop_inode() is called under
inode lock and thus is unusable for disk operations.
Signed-off-by: Jan Kara <jack@suse.cz>
diff --git a/fs/buffer.c b/fs/buffer.c
index 6569fda..10179cf 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -878,6 +878,7 @@
spin_unlock(&buffer_mapping->private_lock);
}
}
+EXPORT_SYMBOL(invalidate_inode_buffers);
/*
* Remove any clean buffers from the inode's buffer list. This is called
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 6e74b11..30ebde4 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -106,6 +106,7 @@
udf_truncate_tail_extent(inode);
unlock_kernel();
write_inode_now(inode, 0);
+ invalidate_inode_buffers(inode);
}
iinfo = UDF_I(inode);
kfree(iinfo->i_ext.i_data);