linux-kernel - Re: [PATCH 13/23] Hibernation: Partial page I/O support.

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, 13 Oct 2010 22:28:22 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Pavel Machek <pavel@....cz>
Cc:	Nigel Cunningham <nigel@...onice.net>,
	Linux PM <linux-pm@...ts.linux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"TuxOnIce-devel" <tuxonice-devel@...onice.net>
Subject: Re: [PATCH 13/23] Hibernation: Partial page I/O support.

On Wednesday, October 13, 2010, Pavel Machek wrote:
> Hi!
> 
> > Add functions that can be used for coalescing and splitting buffers
> > that are smaller than PAGE_SIZE. These functions provide no method
> > of determining where the boundaries of the smaller buffers are to
> > be found - that is the caller's problem.
> 
> I don't get it; why do we need that support?

This is related to compression.  This way we can put data from two or more
compressed pages into one page frame.

Thanks,
Rafael
--
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/