From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 18 Jul 2015 22:38:41 +0000 (+0200)
Subject: MIPS: Fix sched_getaffinity with MT FPAFF enabled
X-Git-Tag: v3.2.72~98
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=226302bdd94de8fd2a772f8c233b5e638ff56959;p=pandora-kernel.git

MIPS: Fix sched_getaffinity with MT FPAFF enabled

commit 1d62d737555e1378eb62a8bba26644f7d97139d2 upstream.

p->thread.user_cpus_allowed is zero-initialized and is only filled on
the first sched_setaffinity call.

To avoid adding overhead in the task initialization codepath, simply OR
the returned mask in sched_getaffinity with p->cpus_allowed.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10740/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
[bwh: Backported to 3.2: also convert from obsolete cpumask API]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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