linux-kernel - Re: [PATCH 1/2] f2fs: improve readahead for POSIX_FADV

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] [day] [month] [year] [list]

Message-ID: <aXKyGIH-ZuvCI6h5@google.com>
Date: Thu, 22 Jan 2026 23:26:16 +0000
From: Jaegeuk Kim <jaegeuk@...nel.org>
To: Christoph Hellwig <hch@...radead.org>
Cc: linux-kernel@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
	Matthew Wilcox <willy@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 1/2] f2fs: improve readahead for POSIX_FADV_WILLNEED

On 01/22, Christoph Hellwig wrote:
> On Fri, Nov 21, 2025 at 06:05:01PM +0000, Jaegeuk Kim wrote:
> > On 11/20, Christoph Hellwig wrote:
> > > On Fri, Nov 21, 2025 at 01:42:01AM +0000, Jaegeuk Kim wrote:
> > > > This patch boosts readahead for POSIX_FADV_WILLNEED.
> > > 
> > > How?  That's not a good changelog.
> > > 
> > > Also open coding the read-ahead logic is not a good idea.  The only
> > > f2fs-specific bits are the compression check, and the extent precaching,
> > > but you surely should be able to share a read-ahead helper with common
> > > code instead of duplicating the logic.
> > 
> > Ok, let me try to write up and post a generic version of the changes.
> 
> Did this go anywhere?

Here.

https://lore.kernel.org/lkml/20251202013212.964298-1-jaegeuk@kernel.org/