linux-kernel - Re: [PATCH v4] Revert "f2fs crypto: avoid unneeded memory allocation in ->readdir"

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Date:   Wed, 28 Feb 2018 20:32:20 +0800
From:   Yunlong Song <yunlong.song@...wei.com>
To:     Jaegeuk Kim <jaegeuk@...nel.org>
CC:     <chao@...nel.org>, <yuchao0@...wei.com>, <yunlong.song@...oud.com>,
        <miaoxie@...wei.com>, <bintian.wang@...wei.com>,
        <shengyong1@...wei.com>, <heyunlei@...wei.com>,
        <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4] Revert "f2fs crypto: avoid unneeded memory allocation
 in ->readdir"

On 2018/2/28 13:48, Jaegeuk Kim wrote:
> Hi Yunlong,
> 
> As Eric pointed out, how do you think using nohighmem for directory likewise
> ext4, which looks like more efficient?

OK, I have sent out another patch like this.

  Actually, we don't need to do this in
> most of recent kernels, right?
> 

Why? I have got this panic using arm with recent kernel.