From: Cyril Hrubis <chrubis@suse.cz>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH] mkswap: make the test device size is aligned to pagesize
Date: Thu, 18 Aug 2016 13:33:39 +0200 [thread overview]
Message-ID: <20160818113339.GD24254@rei.lan> (raw)
In-Reply-To: <20160818110822.GA12076@gmail.com>
Hi!
> Ok, this sounds better. I misunderstand you point at first.
>
> As this we can get the right(aligned) size of the device by add:
>
> # cat mkswap01.sh
> ...
> setup()
> {
> ...
>
> # Here get the size of the device and align it down to be the
> # multiple of $PAGE_SIZE and use that as the size for testing.
> device_real=`blockdev --getsize64 $TST_DEVICE`
> device_resi=$((${device_real} % ${PAGE_SIZE}))
>
> DEVICE_SIZE=$(((${device_real} - ${device_resi})/1024))
You can also use and integer division, which is a bit shorter:
DEVICE_SIZE=$((($real_size/$PAGE_SIZE * $PAGE_SIZE)/1024))
--
Cyril Hrubis
chrubis@suse.cz
prev parent reply other threads:[~2016-08-18 11:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-27 9:58 [LTP] [PATCH] mkswap: make the test device size is aligned to pagesize Li Wang
2016-08-09 16:41 ` Cyril Hrubis
2016-08-15 9:25 ` Li Wang
2016-08-15 12:39 ` Cyril Hrubis
2016-08-16 3:24 ` Li Wang
2016-08-16 12:15 ` Cyril Hrubis
2016-08-17 3:39 ` Li Wang
2016-08-17 11:18 ` Cyril Hrubis
2016-08-18 11:08 ` Li Wang
2016-08-18 11:33 ` Cyril Hrubis [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160818113339.GD24254@rei.lan \
--to=chrubis@suse.cz \
--cc=ltp@lists.linux.it \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox