linux-ext4 - how to disable readahead

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 30 Jul 2018 09:10:52 +0000
From:   "Bean Huo (beanhuo)" <beanhuo@...ron.com>
To:     "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>
CC:     "beanhuo.linux@...gle.com" <beanhuo.linux@...gle.com>
Subject: how to disable readahead

Hi, ext4 experts 
For some cases, the storage device inside(FW) already has readahead feature.
I want to disable ext4 readahead and do some test. And see what is the difference
between these situations.
But I tried "inode_readahead_blks" parameter to disable readahead, but it doesn't work.
What else I need to set for disabling ext4 readahead? 
Thanks.

//bean huo