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Thu, 15 Oct 2026 23:41:18 -0700 (PDT) Date: Fri, 16 Oct 2026 15:41:14 +0900 From: Hyunchul Lee To: Xuewen Wang Cc: linkinjeon@kernel.org, ntfs@lists.linux.dev, linux-kernel@vger.kernel.org, Baolin Liu Subject: Re: [PATCH v1] ntfs: support persistent noatime attribute Message-ID: References: <20261016030957.1053110-1-wangxuewen@kylinos.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20261016030957.1053110-1-wangxuewen@kylinos.cn> On Fri, Oct 16, 2026 at 11:09:57AM +0800, Xuewen Wang wrote: > NTFS currently rejects FS_NOATIME_FL in its fileattr setter. This prevents > users from disabling automatic access-time updates on individual files or > directories with chattr +A. > > Store noatime in bit 3 of the private $LINUXFLAGS EA and restore S_NOATIME > when loading an inode. Report and accept FS_NOATIME_FL in the fileattr > callbacks, updating the in-memory flag only after the EA update succeeds. > The VFS then suppresses automatic atime updates for the inode, while > chattr -A restores the mount's atime policy. > > Document the new on-disk bit and that newly created children do not inherit > the attribute. > > Suggested-by: Baolin Liu > Reviewed-by: Baolin Liu > Signed-off-by: Xuewen Wang Looks good to me. Reviewed-by: Hyunchul Lee -- Thanks, Hyunchul