On Thu, Aug 09, 2012 at 10:37:00AM -0700, Tejun Heo wrote: > Hello, > > On Mon, Aug 06, 2012 at 03:08:41PM -0700, Kent Overstreet wrote: > > bcache creates large bios internally, and then splits them according to > > the device requirements before it sends them down. If a lower level > > device tries to clone the bio, and the original bio had more than > > BIO_MAX_PAGES, the clone will fail unecessarily. > > > > We can fix this by only cloning the bio vecs that are actually in use. > > How was this tested? This code has been in the bcache tree for months, and I added it to fix a real bug (think I saw it with bcache on top of dm) - and since then it's been tested in probably just about all the relevant configurations, certainly both dm and md. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
