From 3a91f28fab43f093c72312148288d125ae160c2d Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 22 May 2025 23:20:39 +0800 Subject: [PATCH] io_uring: add helper io_uring_cmd_ctx_handle() Add helper io_uring_cmd_ctx_handle() for driver to track per-context resource, such as registered kernel io buffer. Suggested-by: Caleb Sander Mateos Signed-off-by: Ming Lei Reviewed-by: Caleb Sander Mateos Link: https://lore.kernel.org/r/20250522152043.399824-2-ming.lei@redhat.com Signed-off-by: Jens Axboe --- include/linux/io_uring/cmd.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/io_uring/cmd.h b/include/linux/io_uring/cmd.h index 0634a3de17829..53408124c1e50 100644 --- a/include/linux/io_uring/cmd.h +++ b/include/linux/io_uring/cmd.h @@ -140,6 +140,15 @@ static inline struct io_uring_cmd_data *io_uring_cmd_get_async_data(struct io_ur 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 + */ +static inline void *io_uring_cmd_ctx_handle(struct io_uring_cmd *cmd) +{ + return cmd_to_io_kiocb(cmd)->ctx; +} + int io_buffer_register_bvec(struct io_uring_cmd *cmd, struct request *rq, void (*release)(void *), unsigned int index, unsigned int issue_flags); -- 2.47.2