From: J. Bruce Fields <bfields@redhat.com>
Date: Tue, 12 Oct 2010 23:55:25 +0000 (-0400)
Subject: nfsd4: delay session removal till free_client
X-Git-Tag: v2.6.37-rc1~113^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=792c95dd519c54d6b0fd6401b3da7ea67b0d6b72;p=pandora-kernel.git

nfsd4: delay session removal till free_client

Have unhash_client_locked() remove client and associated sessions from
global hashes, but delay further dismantling till free_client().

(After unhash_client_locked(), the only remaining references outside the
destroying thread are from any connections which have xpt_user callbacks
registered.)

This will simplify locking on session destruction.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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