From: Cyril Hrubis <chrubis@suse.cz>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH 1/2] SAFE_MACROS: Add SAFE_SETPRIORITY() && Drop redundant space
Date: Tue, 22 Nov 2016 11:22:27 +0100 [thread overview]
Message-ID: <20161122102226.GE7048@rei.lan> (raw)
In-Reply-To: <583412F7.5070403@cn.fujitsu.com>
Hi!
> > And also this is 1/2, shouldn't there be a second patch that uses this?
>
> Yes, I should have sent the second patch that uses this, but I faced a problem
> below and was still working on it.
>
> I found that setpriority01 with PRIO_USER as root will change system environment,
> set the priorities of all specified processes to 19.
Well that is kind of expected, since it should operate on all processes
whose user real id matches the who parameter. I guess that the only safe
way how to test this flag is to:
* Pick unused user id and sets it as a real user id
* Start a few processes there
* One of them calls setpriority and checks that all of them got it
--
Cyril Hrubis
chrubis@suse.cz
prev parent reply other threads:[~2016-11-22 10:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-17 9:36 [LTP] [PATCH 1/2] SAFE_MACROS: Add SAFE_SETPRIORITY() && Drop redundant space Guangwen Feng
2016-11-22 8:09 ` Cyril Hrubis
2016-11-22 9:42 ` Guangwen Feng
2016-11-22 10:22 ` Cyril Hrubis [this message]
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