On Fri, Jan 07, 2011 at 01:53:25PM -0500, Trond Myklebust wrote: > I'd still like to keep the existing code for those architectures that > don't have problems, since that allows us to send 32k READDIR requests > instead of being limited to 4k. For large directories, that is a clear > win. > For the NOMMU case we will just go back to using a single page for > storage (and 4k READDIR requests only). Should I just do the same for > architectures like ARM and PARISC? I think you said that readdir reads via the vmalloc mapping of the group of pages, but XDR writes to the individual pages. As I understand NFS, you receive a packet, you then have to use XDR to unpack the data, which you presumably write into the set of struct page *'s using kmap? Isn't a solution to have XDR write directly into the vmalloc mapping rather than using struct page * and kmap? -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
