On Wed, Mar 30, 2016 at 09:07:53AM -0600, Jens Axboe wrote: > Add an internal helper and flag for setting whether a queue has > write back caching, or write through (or none). Add a sysfs file > to show this as well, and make it changeable from user space. As per previous discussion: I don't really care about the way how we tell the block layer we have a writeback cache, but a NAK to having each driver call two interfaces to convey the same information. Please just look at q->flush_flag & REQ_FLUSH for now, and then improvem the interface if you don't like it (I don't particularly like it, but not to the point that I'm motivated enough to fix it :)) -- 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
