Lots of progress on cifs and smb2 kernel clients at the SNIA conference/plugfest. Some highlights: - Jeff and I worked together to review various patchsets in more detail - Merged Metze's "Minshall-French" (MacOS) symlink patchset. We can now create symlinks to servers which do not support the CIFS Unix Extensions - After various minor fixups merged the first half of Jeff's long series of "multiuser mount" patches. Expect to finish the review and merge of the remainder this week - Merged two of Shirish's NTLMv2/NTLMSSP auth and crypto patches. - After discussions with Dr. Holder merged Ben's patch which allows selecting the network interface at mount time - Made three other minor fixes to cifs On SMB2 - - verified the huge speed improvement on writes. Using the new smb2 kernel module, large file writes ranged from 12% to 125% faster (than cifs) to very current Samba 3.6 server (and also to Windows server) depending on network and disk speed. This should be even larger still when we use larger buffer sizes (and improved caching) which smb2 allows. (interestingly using posix async i/o on the Samba server side slows performance slightly, and we did not focus on read performance, in part because of the lack of sendfile support on the Samba server side yet). - many patches merged - most obviously fixed some mount/umount/rmmod stability issues - fixed readdir, at least for small/medium sized directories - began the improved oplock implementation - created a "cifs_common" subdirectory so that common routines between smb2.ko and cifs.ko can be placed in a new small helper module (I estimate that this will end up about 5000 lines of code - so making common code could reduce the size of the smb2 code base by 20-30% eventually). This will be a gradual process, but I have already identified a subset of the connection establishment routines that can be moved to common fairly easily. - There were some good talks on smb2 - including ones discussing metadata caching and the corresponding dramatic performance improvements, and also on the early plans for SMB2 Unix Extensions All in all a a very successful conference and plugfest. -- Thanks, Steve -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
