linux-ext4 - Re: [PATCH v8 08/17] ext4: Report case sensitivity in fileattr

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Message-ID: <20260219131441.GA69183@macsyma-wired.lan>
Date: Thu, 19 Feb 2026 08:14:41 -0500
From: "Theodore Tso" <tytso@....edu>
To: Chuck Lever <cel@...nel.org>
Cc: Al Viro <viro@...iv.linux.org.uk>, Christian Brauner <brauner@...nel.org>,
        Jan Kara <jack@...e.cz>, linux-fsdevel@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org,
        linux-cifs@...r.kernel.org, linux-nfs@...r.kernel.org,
        linux-api@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        hirofumi@...l.parknet.co.jp, linkinjeon@...nel.org,
        sj1557.seo@...sung.com, yuezhang.mo@...y.com,
        almaz.alexandrovich@...agon-software.com, slava@...eyko.com,
        glaubitz@...sik.fu-berlin.de, frank.li@...o.com,
        adilger.kernel@...ger.ca, cem@...nel.org, sfrench@...ba.org,
        pc@...guebit.org, ronniesahlberg@...il.com, sprasad@...rosoft.com,
        trondmy@...nel.org, anna@...nel.org, jaegeuk@...nel.org,
        chao@...nel.org, hansg@...nel.org, senozhatsky@...omium.org,
        Chuck Lever <chuck.lever@...cle.com>
Subject: Re: [PATCH v8 08/17] ext4: Report case sensitivity in fileattr_get

On Tue, Feb 17, 2026 at 04:47:32PM -0500, Chuck Lever wrote:
> From: Chuck Lever <chuck.lever@...cle.com>
> 
> Report ext4's case sensitivity behavior via the FS_XFLAG_CASEFOLD
> flag. ext4 always preserves case at rest.
> 
> Case sensitivity is a per-directory setting in ext4. If the queried
> inode is a casefolded directory, report case-insensitive; otherwise
> report case-sensitive (standard POSIX behavior).
> 
> Reviewed-by: Jan Kara <jack@...e.cz>
> Signed-off-by: Chuck Lever <chuck.lever@...cle.com>

Acked-by: Theodore Ts'o <tytso@....edu>