linux-ext4 - Re: [PATCH 08/13] iomap: assign current->backing_dev_info in iomap_file_buffered

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Date:   Mon, 22 May 2023 09:05:00 +0900
From:   Damien Le Moal <dlemoal@...nel.org>
To:     Christoph Hellwig <hch@....de>,
        Matthew Wilcox <willy@...radead.org>
Cc:     Jens Axboe <axboe@...nel.dk>, Xiubo Li <xiubli@...hat.com>,
        Ilya Dryomov <idryomov@...il.com>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Christian Brauner <brauner@...nel.org>,
        Theodore Ts'o <tytso@....edu>,
        Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>,
        Miklos Szeredi <miklos@...redi.hu>,
        Andreas Gruenbacher <agruenba@...hat.com>,
        "Darrick J. Wong" <djwong@...nel.org>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <anna@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-block@...r.kernel.org, ceph-devel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
        "open list:F2FS FILE SYSTEM" <linux-f2fs-devel@...ts.sourceforge.net>,
        cluster-devel@...hat.com, linux-xfs@...r.kernel.org,
        linux-nfs@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 08/13] iomap: assign current->backing_dev_info in
 iomap_file_buffered_write

On 5/19/23 18:35, Christoph Hellwig wrote:
> Move the assignment to current->backing_dev_info from the callers into
> iomap_file_buffered_write to reduce boiler plate code and reduce the
> scope to just around the page dirtying loop.
> 
> Note that zonefs was missing this assignment before.

Hu... Shouldn't this be fixed as a separate patch with a Fixes tag for this cycle ?
I have never noticed any issues with this missing though. Not sure how an issue
can be triggered with this assignment missing.

Apart from that, this patch look good to me.

Reviewed-by: Damien Le Moal <dlemoal@...nel.org>

-- 
Damien Le Moal
Western Digital Research