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[35.205.142.120]) by smtp.gmail.com with ESMTPSA id 123-20020a1c1981000000b003c6c4639ac6sm1547372wmz.34.2022.10.14.01.49.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Oct 2022 01:49:51 -0700 (PDT) From: Hrutvik Kanabar To: Hrutvik Kanabar Cc: Marco Elver , Aleksandr Nogikh , kasan-dev@googlegroups.com, Alexander Viro , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Theodore Ts'o , Andreas Dilger , linux-ext4@vger.kernel.org, Chris Mason , Josef Bacik , David Sterba , linux-btrfs@vger.kernel.org, Jaegeuk Kim , Chao Yu , linux-f2fs-devel@lists.sourceforge.net, "Darrick J . Wong" , linux-xfs@vger.kernel.org, Namjae Jeon , Sungjong Seo , Anton Altaparmakov , linux-ntfs-dev@lists.sourceforge.net Subject: [PATCH RFC 5/7] fs/xfs: support `DISABLE_FS_CSUM_VERIFICATION` config option Date: Fri, 14 Oct 2022 08:48:35 +0000 Message-Id: <20221014084837.1787196-6-hrkanabar@gmail.com> X-Mailer: git-send-email 2.38.0.413.g74048e4d9e-goog In-Reply-To: <20221014084837.1787196-1-hrkanabar@gmail.com> References: <20221014084837.1787196-1-hrkanabar@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1746652391447047400?= X-GMAIL-MSGID: =?utf-8?q?1746652391447047400?= From: Hrutvik Kanabar When `DISABLE_FS_CSUM_VERIFICATION` is enabled, return truthy value for `xfs_verify_cksum`, which is the key function implementing checksum verification for XFS. Signed-off-by: Hrutvik Kanabar --- fs/xfs/libxfs/xfs_cksum.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/fs/xfs/libxfs/xfs_cksum.h b/fs/xfs/libxfs/xfs_cksum.h index 999a290cfd72..ba55b1afa382 100644 --- a/fs/xfs/libxfs/xfs_cksum.h +++ b/fs/xfs/libxfs/xfs_cksum.h @@ -76,7 +76,10 @@ xfs_verify_cksum(char *buffer, size_t length, unsigned long cksum_offset) { uint32_t crc = xfs_start_cksum_safe(buffer, length, cksum_offset); - return *(__le32 *)(buffer + cksum_offset) == xfs_end_cksum(crc); + if (IS_ENABLED(CONFIG_DISABLE_FS_CSUM_VERIFICATION)) + return 1; + else + return *(__le32 *)(buffer + cksum_offset) == xfs_end_cksum(crc); } #endif /* _XFS_CKSUM_H */