From mboxrd@z Thu Jan  1 00:00:00 1970
From: Al Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH] utimes: Clamp the timestamps in notify_change()
Date: Sun, 24 Nov 2019 19:49:34 +0000
Message-ID: <20191124194934.GB4203@ZenIV.linux.org.uk>
References: <20191124193145.22945-1-amir73il@gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <y2038-bounces@lists.linaro.org>
Content-Disposition: inline
In-Reply-To: <20191124193145.22945-1-amir73il@gmail.com>
List-Unsubscribe: <https://lists.linaro.org/mailman/options/y2038>,
 <mailto:y2038-request@lists.linaro.org?subject=unsubscribe>
List-Archive: <http://lists.linaro.org/pipermail/y2038/>
List-Post: <mailto:y2038@lists.linaro.org>
List-Help: <mailto:y2038-request@lists.linaro.org?subject=help>
List-Subscribe: <https://lists.linaro.org/mailman/listinfo/y2038>,
 <mailto:y2038-request@lists.linaro.org?subject=subscribe>
Errors-To: y2038-bounces@lists.linaro.org
Sender: "Y2038" <y2038-bounces@lists.linaro.org>
To: Amir Goldstein <amir73il@gmail.com>
Cc: linux-nfs@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>, Miklos Szeredi <miklos@szeredi.hu>, y2038@lists.linaro.org, Jeff Layton <jlayton@kernel.org>, linux-unionfs@vger.kernel.org, "J . Bruce Fields" <bfields@fieldses.org>, Deepa Dinamani <deepa.kernel@gmail.com>, linux-fsdevel@vger.kernel.org
List-Id: linux-unionfs@vger.kernel.org
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==