From 733c43f1df34f9185b945e6f12ac00c8556c6dfe Mon Sep 17 00:00:00 2001 From: Caleb Sander Mateos Date: Tue, 8 Jul 2025 14:22:10 -0600 Subject: io_uring/cmd: introduce IORING_URING_CMD_REISSUE flag Add a flag IORING_URING_CMD_REISSUE that ->uring_cmd() implementations can use to tell whether this is the first or subsequent issue of the uring_cmd. This will allow ->uring_cmd() implementations to store information in the io_uring_cmd's pdu across issues. Signed-off-by: Caleb Sander Mateos Acked-by: David Sterba Link: https://lore.kernel.org/r/20250708202212.2851548-3-csander@purestorage.com Signed-off-by: Jens Axboe --- include/linux/io_uring/cmd.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux/io_uring') diff --git a/include/linux/io_uring/cmd.h b/include/linux/io_uring/cmd.h index 53408124c1e5..29892f54e0ac 100644 --- a/include/linux/io_uring/cmd.h +++ b/include/linux/io_uring/cmd.h @@ -8,6 +8,8 @@ /* only top 8 bits of sqe->uring_cmd_flags for kernel internal use */ #define IORING_URING_CMD_CANCELABLE (1U << 30) +/* io_uring_cmd is being issued again */ +#define IORING_URING_CMD_REISSUE (1U << 31) struct io_uring_cmd { struct file *file; -- cgit v1.2.3 From 2e6dbb25ea15844c8b617260d635731c37c85ac9 Mon Sep 17 00:00:00 2001 From: Caleb Sander Mateos Date: Tue, 8 Jul 2025 14:22:12 -0600 Subject: io_uring/cmd: remove struct io_uring_cmd_data There are no more users of struct io_uring_cmd_data and its op_data field. Remove it to shave 8 bytes from struct io_async_cmd and eliminate a store and load for every uring_cmd. Signed-off-by: Caleb Sander Mateos Acked-by: David Sterba Link: https://lore.kernel.org/r/20250708202212.2851548-5-csander@purestorage.com Signed-off-by: Jens Axboe --- include/linux/io_uring/cmd.h | 9 --------- 1 file changed, 9 deletions(-) (limited to 'include/linux/io_uring') diff --git a/include/linux/io_uring/cmd.h b/include/linux/io_uring/cmd.h index 29892f54e0ac..cfa6d0c0c322 100644 --- a/include/linux/io_uring/cmd.h +++ b/include/linux/io_uring/cmd.h @@ -21,10 +21,6 @@ struct io_uring_cmd { u8 pdu[32]; /* available inline for free use */ }; -struct io_uring_cmd_data { - void *op_data; -}; - static inline const void *io_uring_sqe_cmd(const struct io_uring_sqe *sqe) { return sqe->cmd; @@ -137,11 +133,6 @@ static inline struct task_struct *io_uring_cmd_get_task(struct io_uring_cmd *cmd return cmd_to_io_kiocb(cmd)->tctx->task; } -static inline struct io_uring_cmd_data *io_uring_cmd_get_async_data(struct io_uring_cmd *cmd) -{ - return cmd_to_io_kiocb(cmd)->async_data; -} - /* * Return uring_cmd's context reference as its context handle for driver to * track per-context resource, such as registered kernel IO buffer -- cgit v1.2.3