linux-kernel - Re: [PATCH v10 02/10] erofs: hold read context in iomap

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: <65cf64e7-c395-4508-9bac-5a8dc08e8f3c@linux.alibaba.com>
Date: Tue, 23 Dec 2025 10:32:46 +0800
From: Gao Xiang <hsiangkao@...ux.alibaba.com>
To: Hongbo Li <lihongbo22@...wei.com>, chao@...nel.org, brauner@...nel.org,
 djwong@...nel.org, amir73il@...il.com, hch@....de
Cc: linux-fsdevel@...r.kernel.org, linux-erofs@...ts.ozlabs.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v10 02/10] erofs: hold read context in iomap_iter if
 needed



On 2025/12/23 09:56, Hongbo Li wrote:
> Introduce `struct erofs_iomap_iter_ctx` to hold both `struct page *`
> and `void *base`, avoiding bogus use of `kmap_to_page()` in
> `erofs_iomap_end()`.
> 
> With this change, fiemap and bmap no longer need to read inline data.
> 
> Additionally, the upcoming page cache sharing mechanism requires
> passing the backing inode pointer to `erofs_iomap_{begin,end}()`, as
> I/O accesses must apply to backing inodes rather than anon inodes.
> 
> Signed-off-by: Hongbo Li <lihongbo22@...wei.com>

Reviewed-by: Gao Xiang <hsiangkao@...ux.alibaba.com>

Thanks,
Gao Xiang