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Wed, 12 Mar 2025 06:09:39 -0700 (PDT) From: Sidong Yang To: Jens Axboe , Pavel Begunkov , Josef Bacik , David Sterba Cc: Sidong Yang , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org Subject: [RFC PATCH v2 0/2] introduce io_uring_cmd_import_fixed_vec Date: Wed, 12 Mar 2025 13:09:20 +0000 Message-ID: <20250312130924.11402-1-sidong.yang@furiosa.ai> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This patche series introduce io_uring_cmd_import_vec. With this function, Multiple fixed buffer could be used in uring cmd. It's vectored version for io_uring_cmd_import_fixed(). Also this patch series includes a usage for new api for encoded read in btrfs by using uring cmd. v2: - don't export iou_vc, use bvec for btrfs - use io_is_compat for checking compat - reduce allocation/free for import fixed vec Sidong Yang (2): io_uring: cmd: introduce io_uring_cmd_import_fixed_vec btrfs: ioctl: use registered buffer for IORING_URING_CMD_FIXED fs/btrfs/ioctl.c | 27 ++++++++++++++++++++++----- include/linux/io_uring/cmd.h | 14 ++++++++++++++ io_uring/uring_cmd.c | 31 +++++++++++++++++++++++++++++++ 3 files changed, 67 insertions(+), 5 deletions(-) -- 2.43.0