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From: David Laight <David.Laight@ACULAB.COM>
To: 'Giuseppe Scrivano' <gscrivan@redhat.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: "viro@zeniv.linux.org.uk" <viro@zeniv.linux.org.uk>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
	"christian.brauner@ubuntu.com" <christian.brauner@ubuntu.com>,
	"containers@lists.linux-foundation.org" 
	<containers@lists.linux-foundation.org>
Subject: RE: [PATCH 2/2] selftests: add tests for CLOSE_RANGE_CLOEXEC
Date: Tue, 13 Oct 2020 15:22:50 +0000	[thread overview]
Message-ID: <725dd537afca44489dad48e8ef20e894@AcuMS.aculab.com> (raw)
In-Reply-To: <20201013140609.2269319-3-gscrivan@redhat.com>

> Subject: [PATCH 2/2] selftests: add tests for CLOSE_RANGE_CLOEXEC

You really ought to check that it skips closed files.
For instance using dup2() to move some open files to 'big numbers'.

Although you know how it works, a 'black box' test would also
reduce RLIMIT_NOFILES below one of the open files and check
files above the RLIMIT_NOFILES value are affected.

	David

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Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)


      reply	other threads:[~2020-10-13 15:22 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-13 14:06 [PATCH 0/2] fs, close_range: add flag CLOSE_RANGE_CLOEXEC Giuseppe Scrivano
2020-10-13 14:06 ` [PATCH 1/2] " Giuseppe Scrivano
2020-10-13 20:54   ` Christian Brauner
2020-10-13 21:04     ` Rasmus Villemoes
2020-10-13 21:22       ` Christian Brauner
2020-10-13 22:45     ` Giuseppe Scrivano
2020-10-13 21:09   ` Al Viro
2020-10-13 21:32     ` Christian Brauner
2020-10-13 21:49     ` Rasmus Villemoes
2020-10-13 14:06 ` [PATCH 2/2] selftests: add tests for CLOSE_RANGE_CLOEXEC Giuseppe Scrivano
2020-10-13 15:22   ` David Laight [this message]

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