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| author | Caleb Sander Mateos <csander@purestorage.com> | 2025-02-17 05:25:04 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-02-17 15:34:50 +0300 |
| commit | bcf8a0293a019bb0c4aebafdebe9a1e7a923249a (patch) | |
| tree | 075a4aa0347e306e0b4bffe1efb24b53df62cd51 /include/linux | |
| parent | 496f56bf9f1acf11ce14489f34d81ba6e4023f42 (diff) | |
| download | linux-bcf8a0293a019bb0c4aebafdebe9a1e7a923249a.tar.xz | |
io_uring: introduce type alias for io_tw_state
In preparation for changing how io_tw_state is passed, introduce a type
alias io_tw_token_t for struct io_tw_state *. This allows for changing
the representation in one place, without having to update the many
functions that just forward their struct io_tw_state * argument.
Also add a comment to struct io_tw_state to explain its purpose.
Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://lore.kernel.org/r/20250217022511.1150145-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/io_uring_types.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h index e2fef264ff8b..ea4694ee9d19 100644 --- a/include/linux/io_uring_types.h +++ b/include/linux/io_uring_types.h @@ -436,8 +436,15 @@ struct io_ring_ctx { struct io_mapped_region param_region; }; +/* + * Token indicating function is called in task work context: + * ctx->uring_lock is held and any completions generated will be flushed. + * ONLY core io_uring.c should instantiate this struct. + */ struct io_tw_state { }; +/* Alias to use in code that doesn't instantiate struct io_tw_state */ +typedef struct io_tw_state *io_tw_token_t; enum { REQ_F_FIXED_FILE_BIT = IOSQE_FIXED_FILE_BIT, @@ -563,7 +570,7 @@ enum { REQ_F_HAS_METADATA = IO_REQ_FLAG(REQ_F_HAS_METADATA_BIT), }; -typedef void (*io_req_tw_func_t)(struct io_kiocb *req, struct io_tw_state *ts); +typedef void (*io_req_tw_func_t)(struct io_kiocb *req, io_tw_token_t tw); struct io_task_work { struct llist_node node; |