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[34.21.69.243]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8971cc7f82csm175513186d6.4.2026.02.17.15.08.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Feb 2026 15:08:52 -0800 (PST) From: Ethan Ferguson To: hirofumi@mail.parknet.co.jp Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Ethan Ferguson Subject: [PATCH v2 0/2] fat: Add FS_IOC_GETFSLABEL / FS_IOC_SETFSLABEL ioctls Date: Tue, 17 Feb 2026 18:06:26 -0500 Message-ID: <20260217230628.719475-1-ethan.ferguson@zetier.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add support for reading / writing to the volume label of a FAT filesystem via the FS_IOC_GETFSLABEL and FS_IOC_SETFSLABEL ioctls. Volume label changes are persisted in the volume label dentry in the root directory as well as the bios parameter block. v2: * Create volume label dentry if not present * Respect msdos shortname rules * Add locking * Fixed bugs (EFAULT from copy_to_user, uninitialized buffer_head) Ethan Ferguson (2): fat: Add FS_IOC_GETFSLABEL ioctl fat: Add FS_IOC_SETFSLABEL ioctl fs/fat/dir.c | 51 ++++++++++++++++++++++++++++ fs/fat/fat.h | 7 ++++ fs/fat/file.c | 79 ++++++++++++++++++++++++++++++++++++++++++++ fs/fat/inode.c | 26 +++++++++++++-- fs/fat/namei_msdos.c | 4 +-- 5 files changed, 163 insertions(+), 4 deletions(-) base-commit: 9f2693489ef8558240d9e80bfad103650daed0af -- 2.43.0