From: Jeff Layton <jlayton@redhat.com>
Date: Thu, 1 Dec 2011 21:44:39 +0000 (+0100)
Subject: Freezer / sunrpc / NFS: don't allow TASK_KILLABLE sleeps to block the freezer
X-Git-Tag: v3.3-rc1~148^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d310310cbff18ec385c6ab4d58f33b100192a96a;p=pandora-kernel.git

Freezer / sunrpc / NFS: don't allow TASK_KILLABLE sleeps to block the freezer

Allow the freezer to skip wait_on_bit_killable sleeps in the sunrpc
layer. This should allow suspend and hibernate events to proceed, even
when there are RPC's pending on the wire.

Also, wrap the TASK_KILLABLE sleeps in NFS layer in freezer_do_not_count
and freezer_count calls. This allows the freezer to skip tasks that are
sleeping while looping on EJUKEBOX or NFS4ERR_DELAY sorts of errors.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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