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Code Issues Releases Wiki Activity

io_uring/uring_cmd: assign ioucmd->cmd at async prep time 

Rather than check this in the fast path issue, it makes more sense to
just assign the copy of the data when we're setting it up anyway. This
makes the code a bit cleaner, and removes the need for this check in
the issue path.

Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2023-04-05 08:21:45 -06:00
parent 69bbc6ade9
commit 758d5d64b6
1 changed files with 1 additions and 3 deletions
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4
io_uring/uring_cmd.c
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@ -73,6 +73,7 @@ int io_uring_cmd_prep_async(struct io_kiocb *req)
cmd_size = uring_cmd_pdu_size(req->ctx->flags & IORING_SETUP_SQE128);
memcpy(req->async_data, ioucmd->cmd, cmd_size);
ioucmd->cmd = req->async_data;
return 0;
}
@ -129,9 +130,6 @@ int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags)
WRITE_ONCE(ioucmd->cookie, NULL);
}
if (req_has_async_data(req))
ioucmd->cmd = req->async_data;
ret = file->f_op->uring_cmd(ioucmd, issue_flags);
if (ret == -EAGAIN) {
if (!req_has_async_data(req)) {