linux-kernel - Re: [PATCH 15/26] range: Add range

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: <20240325183351.GP14596@suse.cz>
Date: Mon, 25 Mar 2024 19:33:51 +0100
From: David Sterba <dsterba@...e.cz>
To: Ira Weiny <ira.weiny@...el.com>
Cc: Dave Jiang <dave.jiang@...el.com>, Fan Ni <fan.ni@...sung.com>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Navneet Singh <navneet.singh@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Davidlohr Bueso <dave@...olabs.net>,
	Alison Schofield <alison.schofield@...el.com>,
	Vishal Verma <vishal.l.verma@...el.com>,
	linux-btrfs@...r.kernel.org, linux-cxl@...r.kernel.org,
	linux-kernel@...r.kernel.org, Chris Mason <clm@...com>,
	Josef Bacik <josef@...icpanda.com>, David Sterba <dsterba@...e.com>
Subject: Re: [PATCH 15/26] range: Add range_overlaps()

On Sun, Mar 24, 2024 at 04:18:18PM -0700, Ira Weiny wrote:
> Code to support CXL Dynamic Capacity devices will have extent ranges
> which need to be compared for intersection not a subset as is being
> checked in range_contains().
> 
> range_overlaps() is defined in btrfs with a different meaning from what
> is required in the standard range code.  Dan Williams pointed this out
> in [1].  Adjust the btrfs call according to his suggestion there.
> 
> Then add a generic range_overlaps().
> 
> Cc: Dan Williams <dan.j.williams@...el.com>
> Cc: Chris Mason <clm@...com>
> Cc: Josef Bacik <josef@...icpanda.com>
> Cc: David Sterba <dsterba@...e.com>
> Cc: linux-btrfs@...r.kernel.org
> Signed-off-by: Ira Weiny <ira.weiny@...el.com>
> 
> [1] https://lore.kernel.org/all/65949f79ef908_8dc68294f2@dwillia2-xfh.jf.intel.com.notmuch/
> ---

>  fs/btrfs/ordered-data.c | 10 +++++-----

Acked-by: David Sterba <dsterba@...e.com>