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io_uring: introduce type alias for io_tw_state

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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>
This commit is contained in:
Caleb Sander Mateos
2025-02-16 19:25:04 -07:00
committed by Jens Axboe
parent 496f56bf9f
commit bcf8a0293a
13 changed files with 66 additions and 56 deletions
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3
io_uring/rw.h
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@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/io_uring_types.h>
#include <linux/pagemap.h>
struct io_meta_state {
@@ -39,7 +40,7 @@ int io_read(struct io_kiocb *req, unsigned int issue_flags);
int io_write(struct io_kiocb *req, unsigned int issue_flags);
void io_readv_writev_cleanup(struct io_kiocb *req);
void io_rw_fail(struct io_kiocb *req);
void io_req_rw_complete(struct io_kiocb *req, struct io_tw_state *ts);
void io_req_rw_complete(struct io_kiocb *req, io_tw_token_t tw);
int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
int io_read_mshot(struct io_kiocb *req, unsigned int issue_flags);
void io_rw_cache_free(const void *entry);