On Fri, Apr 01, 2011 at 08:56:54AM -0400, Christoph Hellwig wrote: > On Fri, Apr 01, 2011 at 06:23:48PM +1100, Dave Chinner wrote: > > Oh, I misread the code in _xfs_buf_read that fiddles with > > _XBF_RUN_QUEUES. That flag is dead then, as is the XBF_LOG_BUFFER > > code which appears to have been superceded by the new XBF_ORDERED > > code. Definitely needs cleaning up. > > Yes, that's been on my todo list for a while, but I first want a sane > defintion of REQ_META in the block layer. Will splitting REQ_META in two will help. Say REQ_META_SYNC and REQ_META_ASYNC. So meta requests which don't require any kind of priority boost at CFQ can mark these REQ_META_ASYNC (XFS). - So we retain the capability to mark metadata requests - Priority boost only for selected meta data. - Throttling can use this to avoid throttling meta data. Thanks Vivek -- 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
