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Mon, 04 Mar 2024 11:12:28 -0800 (PST) X-Google-Smtp-Source: AGHT+IEcXQkCy+qbM5MpjP28mYSzksscG7NinAKQc6R+cEtFLFSGXNxJn80ppRV0QWT9HBUWJwZUQg== X-Received: by 2002:a17:906:3950:b0:a45:73b0:bcc3 with SMTP id g16-20020a170906395000b00a4573b0bcc3mr412595eje.34.1709579548091; Mon, 04 Mar 2024 11:12:28 -0800 (PST) Received: from thinky.redhat.com ([109.183.6.197]) by smtp.gmail.com with ESMTPSA id a11-20020a1709064a4b00b00a44a04aa3cfsm3783319ejv.225.2024.03.04.11.12.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Mar 2024 11:12:27 -0800 (PST) From: Andrey Albershteyn To: fsverity@lists.linux.dev, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, chandan.babu@oracle.com, djwong@kernel.org, ebiggers@kernel.org Cc: Andrey Albershteyn Subject: [PATCH v5 19/24] xfs: don't allow to enable DAX on fs-verity sealsed inode Date: Mon, 4 Mar 2024 20:10:42 +0100 Message-ID: <20240304191046.157464-21-aalbersh@redhat.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20240304191046.157464-2-aalbersh@redhat.com> References: <20240304191046.157464-2-aalbersh@redhat.com> Precedence: bulk X-Mailing-List: fsverity@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com fs-verity doesn't support DAX. Forbid filesystem to enable DAX on inodes which already have fs-verity enabled. The opposite is checked when fs-verity is enabled, it won't be enabled if DAX is. Signed-off-by: Andrey Albershteyn --- fs/xfs/xfs_iops.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index 0e5cdb82b231..6f97d777f702 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -1213,6 +1213,8 @@ xfs_inode_should_enable_dax( return false; if (!xfs_inode_supports_dax(ip)) return false; + if (ip->i_diflags2 & XFS_DIFLAG2_VERITY) + return false; if (xfs_has_dax_always(ip->i_mount)) return true; if (ip->i_diflags2 & XFS_DIFLAG2_DAX)