b900799768
The cache of struct svc_export and struct svc_expkey by nfsd and rpc.mountd for the snapshot holds references to the mount point. We need to flush them out before unmounting, otherwise umount would fail with EBUSY. Reviewed-by: Don Brady <don.brady@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Youzhong Yang <yyang@mathworks.com> Closes #6000 Closes #10783 |
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