On Monday, July 12, 2010 10:27:49 am John Baldwin wrote: > Author: jhb > Date: Mon Jul 12 14:27:49 2010 > New Revision: 209948 > URL: http://svn.freebsd.org/changeset/base/209948 > > Log: > A previous change moved the GETATTR RPC for open() calls that hit in the > name cache up into nfs_lookup() instead of nfs_open(). Continue this > trend by flushing the attribute cache for leaf nodes in nfs_lookup() during > an open() if we do a LOOKUP RPC. For NFSv3 this should generally be a NOP > as the attributes are flushed before fetching the post-op attributes from > the LOOKUP RPC which most (all?) NFSv3 servers provide, so the post-op > attributes should populate the cache. > > Now all NFS open() calls will always clear the cached attributes during the > nfs_lookup() prior to nfs_open() in the !NMODIFIED case to provide CTOC. > As a result, we can remove the conditional flushing of the attribute > cache from nfs_open().
One benefit is that we can now remove td_syscalls which added extra overhead to each system call. -- John Baldwin _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
