linux-kernel - Re: writing file to disk: not as easy as it looks

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:	Wed, 3 Dec 2008 11:42:40 -0500
From:	Theodore Tso <tytso@....edu>
To:	Pavel Machek <pavel@...e.cz>
Cc:	Chris Friesen <cfriesen@...tel.com>,
	mikulas@...ax.karlin.mff.cuni.cz, clock@...ey.karlin.mff.cuni.cz,
	kernel list <linux-kernel@...r.kernel.org>, aviro@...hat.com
Subject: Re: writing file to disk: not as easy as it looks

On Wed, Dec 03, 2008 at 09:46:40AM +0100, Pavel Machek wrote:
> Yes. fsync() seeems surprisingly high on Rusty's list of broken
> interfaces classification ('impossible to use correctly').

To be fair, fsync() was primarily intended for making sure that the
data had been written to disk, and not necessarily as a way of making
sure that write errors would be properly reflected back to the
application.  As you've pointed out, it's not really adequate for that
purpose.

						- Ted
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/