On Fri, May 16, 2008 at 02:09:56PM -0500, Eric Sandeen wrote: > To ensure that bits are truly on-disk after an fsync, > we should call blkdev_issue_flush if barriers are supported. This patch isn't necessary, and in fact will cause a double flush. When you call fsync(), it calls ext4_force_commit(), and we do a the equivalent of a blkdev_issue_flush() today (which is what happenes when you do a submit_bh(WRITE_BARRIER, bh), which is what setting set_ordered_mode(bh) ends up causing. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html