Rick Macklem dda11d4ab9 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. Reviewed by: kib MFC after: 2 weeks		2015-04-15 20:16:31 +00:00
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ffs	File systems that do not use the buffer cache (such as ZFS) must	2015-04-15 20:16:31 +00:00
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