On Mon, 2026-01-19 at 23:44 -0800, Christoph Hellwig wrote:

On Mon, Jan 19, 2026 at 11:26:18AM -0500, Jeff Layton wrote:

quoted

+  EXPORT_OP_NOLOCKS - Disable file locking on this filesystem. Some
+    filesystems cannot properly support file locking as implemented by
+    nfsd. A case in point is reexport of NFS itself, which can't be done
+    safely without coordinating the grace period handling. Other clustered
+    and networked filesystems can be problematic here as well.

I'm not sure this is very useful.  It really needs to document what
locking semantics nfs expects, because otherwise no reader will know
if they set this or not.

Fair point. I'll see if I can draft something better. Suggestions
welcome.
-- 
Jeff Layton [off-list ref]