K 10 svn:author V 8 rmacklem K 8 svn:date V 27 2015-04-30T12:39:24.416555Z K 7 svn:log V 514 MFC: r281562 File systems that do not use the buffer cache (such as ZFS) must use VOP_FSYNC() to perform the NFS server's Commit operation. This patch adds a mnt_kern_flag called MNTK_USES_BCACHE which is set by file systems that use the buffer cache. If this flag is not set, the NFS server always does a VOP_FSYNC(). This should be ok for old file system modules that do not set MNTK_USES_BCACHE, since calling VOP_FSYNC() is correct, although it might not be optimal for file systems that use the buffer cache. END