From: David Howells <dhowells@redhat.com>
Date: Fri, 2 Nov 2012 13:20:42 +0000 (+0000)
Subject: FRV: Fix the preemption handling
X-Git-Tag: v3.7-rc4~10^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ee6f5669a7eaba0e2f4e0dd0599b56eb8a9a090;p=pandora-kernel.git

FRV: Fix the preemption handling

Fix the preemption handling in FRV code where the PREEMPT_ACTIVE value is
incorrectly loaded into the threadinfo flags rather than the threadinfo
preemption count.

Unfortunately, the code cannot be simply converted to use
preempt_schedule_irq() as is because FRV uses virtual interrupt disablement to
cut down on the cost of actually disabling interrupts and thus
local_irq_enable() doesn't actually enable interrupts.

Reported-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Al Viro <viro@ZenIV.linux.org.uk>
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