linux-kernel - [PATCH RFC v2 0/4] some fixes and clean up for mempolicy

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Date:   Fri, 27 Oct 2017 18:14:21 +0800
From:   Yisheng Xie <xieyisheng1@...wei.com>
To:     <akpm@...ux-foundation.org>, <vbabka@...e.cz>, <mhocko@...e.com>,
        <mingo@...nel.org>, <rientjes@...gle.com>,
        <n-horiguchi@...jp.nec.com>, <salls@...ucsb.edu>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <tanxiaojun@...wei.com>, <linux-api@...r.kernel.org>
Subject: [PATCH RFC v2 0/4] some fixes and clean up for mempolicy

This patchset is triggered by Xiojun's report of ltp test fail[1],
and I have sent a patch to resolve it by check nodes_empty of new_nodes[2].

The new version is to follow Vlastimil's suggestion, which fix by checking
the new_nodes value in function get_nodes. And I just split them to small
patches for easy to review and discussion. For more detail, please look
into each patches.

Change logs of v2:
 * fix get_nodes's mask miscalculation
 * remove redundant check in get_nodes
 * fix the check of nodemask from user - per Vlastimil

Any comment and complain is welome.

Thanks
Yisheng Xie

[1] https://patchwork.kernel.org/patch/10012005/
[2] https://patchwork.kernel.org/patch/10013329/

Yisheng Xie (4):
  mm/mempolicy: Fix get_nodes() mask miscalculation
  mm/mempolicy: remove redundant check in get_nodes
  mm/mempolicy: fix the check of nodemask from user
  mm/mempolicy: add nodes_empty check in SYSC_migrate_pages

 mm/mempolicy.c | 31 +++++++++++++++++++++++++------
 1 file changed, 25 insertions(+), 6 deletions(-)

-- 
1.7.12.4