From mboxrd@z Thu Jan  1 00:00:00 1970
From: Edward Shishkin <edward.shishkin@gmail.com>
Subject: Re: reiser4: FITRIM ioctl -- how to grab the space?
Date: Sat, 02 Aug 2014 18:40:57 +0200
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References: <3405506.BC0S4TX54B@intelfx-laptop> <53DABD4E.1000905@gmail.com>
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To: Ivan Shapovalov <intelfx100@gmail.com>, reiserfs-devel@vger.kernel.org


On 08/01/2014 12:03 AM, Edward Shishkin wrote:
> grab_space() is only for processes which require disk space (including
> wandered blocks). For example ->read() modifies a superblock (atime),


^superblock^ stat_data (on-disk inode)


> which should be written via journal. So ->read() grab 1 block, etc.
>