On Fri, Oct 08, 2010 at 05:14:27PM +0800, McPacino wrote: > Hi Christoph, > > I have to take care the cache problem If using the bio directly. > BHs can be released by kernel when necessary. > > Is there any existing code using bio to read/write metadata > blocks? How do they handle the timing freeing bios? I really > wish to learn something form it. If you actually need caching just use the pagecache, e.g. read_mapping_page to read in your data. That completely abstracts away the underlying block size. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
