nfsd: switch purge_old() to use start_removing_noperm()

Rather than explicit locking, use the start_removing_noperm() and
end_removing() wrappers.
This was not done with other start_removing changes due to conflicting
in-flight patches.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: NeilBrown <neil@brown.name>
Link: https://patch.msgid.link/20260224222542.3458677-8-neilb@ownmail.net
Signed-off-by: Christian Brauner <brauner@kernel.org>
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NeilBrown 2026-02-25 09:16:52 +11:00 • committed by Christian Brauner
commit 6cb3411962
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