linux-kernel - Re: [PATCH 04/11] fat: cleanup the flags for fat_truncate

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Message-ID: <87cy3nrpdu.fsf@mail.parknet.co.jp>
Date: Tue, 06 Jan 2026 19:45:17 +0900
From: OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To: Christoph Hellwig <hch@....de>
Cc: Christian Brauner <brauner@...nel.org>, Al Viro
 <viro@...iv.linux.org.uk>,
        David Sterba <dsterba@...e.com>, Jan Kara
 <jack@...e.cz>,
        Mike Marshall <hubcap@...ibond.com>,
        Martin Brandenburg
 <martin@...ibond.com>,
        Carlos Maiolino <cem@...nel.org>, Stefan Roesch
 <shr@...com>,
        Jeff Layton <jlayton@...nel.org>,
        Trond Myklebust
 <trondmy@...nel.org>,
        Anna Schumaker <anna@...nel.org>, linux-kernel@...r.kernel.org,
        linux-btrfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        gfs2@...ts.linux.dev, io-uring@...r.kernel.org,
        devel@...ts.orangefs.org, linux-unionfs@...r.kernel.org,
        linux-mtd@...ts.infradead.org, linux-xfs@...r.kernel.org,
        linux-nfs@...r.kernel.org
Subject: Re: [PATCH 04/11] fat: cleanup the flags for fat_truncate_time

Christoph Hellwig <hch@....de> writes:

> Fat only has a single on-disk timestamp covering ctime and mtime.  Add
> fat-specific flags that indicate which timestamp fat_truncate_time should
> update to make this more clear.  This allows removing no-op
> fat_truncate_time calls with the S_CTIME flag and prepares for removing
> the S_* flags.
>
> Signed-off-by: Christoph Hellwig <hch@....de>

This breaks fat_update_time() by calling fat_truncate_time() with old
S_* flags (later patch looks like fixing though). Please add the commit
comment about it, or fix it in this patch.

Thanks.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>