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Wong" References: <2ac5fb22fd6b51973d11082a1ee8fe354926c63c.1781694879.git.asj@kernel.org> <20260701173314.GH6517@frogsfrogsfrogs> <328de723-6f9c-4f09-a68a-da24d49300d5@kernel.org> <20260721225703.GZ7380@frogsfrogsfrogs> Content-Language: en-US In-Reply-To: <20260721225703.GZ7380@frogsfrogsfrogs> X-Headers-End: 1wmJm9-0005Tr-0Y Subject: Re: [f2fs-dev] [PATCH v7 06/11] fstests: verify f_fsid for cloned filesystems X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Anand Suveer Jain via Linux-f2fs-devel Reply-To: Anand Suveer Jain Cc: hch@infradead.org, zlang@redhat.com, fstests@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net >>> just in case there *are* programs foolish enough to >>> use (fsid,ino) as a uniqueness check. >> >> On the other hand, if a program needs a unique ID, do we currently have >> any way to get one? > > I don't think there is a way to get a globally unique identifier for a > filesystem image except for the meta_uuid filesystems, and even then > only if the volume manager resets the user-visible uuid every time it > makes a clone and nobody runs a duplicator. Yeah, interesting problem to solve though. Do you have any further code review comments on this test case? Thanks. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel