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-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sun, 12 Feb 2012 18:48:52 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	Curt Wohlgemuth <curtw@...gle.com>
Cc:	xfs@....sgi.com, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] xfstests: fix msync() call in fsx.c:domapwrite()

On Tue, Feb 07, 2012 at 11:16:06AM -0800, Curt Wohlgemuth wrote:
> This explicitly sends MS_SYNC as the flag to msync() in
> fsx.c, in domapwrite().  Without this flag, the memory
> written to the mmap'ed region will not be flushed to disk;
> in fact, on Linux, calling msync() with a '0' or MS_ASYNC
> flag is a no-op.

Looks sensible to me - what exactly msync did has always been grossly
different for different operating systems, including changing meaning
on Linux a few times, so let's be explicit.

Reviewed-by: Christoph Hellwig <hch@....de>
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists