On Tue, Mar 02, 2010 at 10:34:31AM +0100, Christoph Hellwig wrote: > No, there is nothing. We really do need a multi-stage remount read-only > process: > > 1) stop any writes from userland, that is opening new files writeable > 2) stop any periodic writeback from the VM or filesystem-internal > 3) write out all filesystem data and metadata > 4) mark the filesystem fully read-only If you can code this up in a happily accessible way, we can use it in ocfs2 to handle some error cases without puking. That would make us very happy. Specifically, we haven't yet taken the time to audit how we would ensure step (2). Joel -- "Reader, suppose you were and idiot. And suppose you were a member of Congress. But I repeat myself." - Mark Twain Joel Becker Principal Software Developer Oracle E-mail: joel.becker@xxxxxxxxxx Phone: (650) 506-8127 -- 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
