[1/3] io_uring/uring_cmd: cleanup struct io_uring_cmd_data layout

Commit Message

Jens Axboe Jan. 23, 2025, 6:45 p.m. UTC

A few spots in uring_cmd assume that the SQEs copied are always at the
start of the structure, and hence mix req->async_data and the struct
itself.

Clean that up and use the proper indices.

Signed-off-by: Jens Axboe <[e-mail]>
---
 io_uring/uring_cmd.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Patch

diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index 3993c9339ac7..6a63ec4b5445 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -192,8 +192,8 @@  static int io_uring_cmd_prep_setup(struct io_kiocb *req,
 		return 0;
 	}
 
-	memcpy(req->async_data, sqe, uring_sqe_size(req->ctx));
-	ioucmd->sqe = req->async_data;
+	memcpy(cache->sqes, sqe, uring_sqe_size(req->ctx));
+	ioucmd->sqe = cache->sqes;
 	return 0;
 }
 
@@ -260,7 +260,7 @@  int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags)
 		struct io_uring_cmd_data *cache = req->async_data;
 
 		if (ioucmd->sqe != (void *) cache)
-			memcpy(cache, ioucmd->sqe, uring_sqe_size(req->ctx));
+			memcpy(cache->sqes, ioucmd->sqe, uring_sqe_size(req->ctx));
 		return -EAGAIN;
 	} else if (ret == -EIOCBQUEUED) {
 		return -EIOCBQUEUED;