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[49.180.184.88]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23de43226d9sm98061385ad.116.2025.07.14.13.54.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Jul 2025 13:54:52 -0700 (PDT) Received: from dave by dread.disaster.area with local (Exim 4.98.2) (envelope-from ) id 1ubQCI-0000000B4Dp-19G8; Tue, 15 Jul 2025 06:54:50 +1000 Date: Tue, 15 Jul 2025 06:54:50 +1000 From: Dave Chinner To: Priya PM Cc: linux-xfs@vger.kernel.org Subject: Re: Query: XFS reflink unique block measurement / snapshot accounting Message-ID: References: Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Sat, Jul 12, 2025 at 01:19:19PM +0530, Priya PM wrote: > Hi, > > I was using reflinks to create snapshots of an XFS filesystem; > however, I’m looking for ways to determine the unique snapshot usage > or perform snapshot accounting. XFS doesn't have any "snapshot" functionality in it. What are you trying to measure, exactly? -Dave. -- Dave Chinner david@fromorbit.com