On Mon, 5 Feb 2007 14:12:04 +0100 Jan Kara <jack@xxxxxxx> wrote: > > Move the blocks on the temporary inode to the original inode > > by a page. > > 1. Read the file data from the old blocks to the page > > 2. Move the block on the temporary inode to the original inode > > 3. Write the file data on the page into the new blocks > I have one thing - it's probably not good to use page cache for > defragmentation. Then it is no longer online defragmentation. The issues with maintaining correctness and coherency with ongoing VFS activity would be truly ghastly. If we're worried about pagecache pollution then it would be better to control that from userspace via fadvise(). - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
