linux-kernel - Re: per-bdi-throttling: synchronous writepage doesn't work correctly

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]

Message-Id: <E1Indqb-00049a-00@dorka.pomaz.szeredi.hu>
Date:	Thu, 01 Nov 2007 18:28:49 +0100
From:	Miklos Szeredi <miklos@...redi.hu>
To:	a.p.zijlstra@...llo.nl
CC:	jdike@...toit.com, linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: per-bdi-throttling: synchronous writepage doesn't work
	correctly

> The page not having PG_writeback set on return is a hint, but not fool
> proof, it could be the device is just blazing fast.

Hmm, does it actually has to be foolproof though?  What will happen if
bdi_writeout_inc() is called twice for the page?  The device will get
twice the number of pages it deserves?  That's not all that bad,
especially since that is a really really fast device.

Miklos
-
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/