diff options
| -rw-r--r-- | io_uring/uring_cmd.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c index cfb22e1de0e7..bcfca18395c4 100644 --- a/io_uring/uring_cmd.c +++ b/io_uring/uring_cmd.c @@ -168,6 +168,15 @@ void io_uring_cmd_done(struct io_uring_cmd *ioucmd, ssize_t ret, u64 res2, } EXPORT_SYMBOL_GPL(io_uring_cmd_done); +static void io_uring_cmd_cache_sqes(struct io_kiocb *req) +{ + struct io_uring_cmd *ioucmd = io_kiocb_to_cmd(req, struct io_uring_cmd); + struct io_uring_cmd_data *cache = req->async_data; + + memcpy(cache->sqes, ioucmd->sqe, uring_sqe_size(req->ctx)); + ioucmd->sqe = cache->sqes; +} + static int io_uring_cmd_prep_setup(struct io_kiocb *req, const struct io_uring_sqe *sqe) { @@ -179,14 +188,10 @@ static int io_uring_cmd_prep_setup(struct io_kiocb *req, return -ENOMEM; cache->op_data = NULL; - if (!(req->flags & REQ_F_FORCE_ASYNC)) { - /* defer memcpy until we need it */ - ioucmd->sqe = sqe; - return 0; - } - - memcpy(cache->sqes, sqe, uring_sqe_size(req->ctx)); - ioucmd->sqe = cache->sqes; + ioucmd->sqe = sqe; + /* defer memcpy until we need it */ + if (unlikely(req->flags & REQ_F_FORCE_ASYNC)) + io_uring_cmd_cache_sqes(req); return 0; } @@ -253,7 +258,7 @@ int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags) struct io_uring_cmd_data *cache = req->async_data; if (ioucmd->sqe != cache->sqes) - memcpy(cache->sqes, ioucmd->sqe, uring_sqe_size(req->ctx)); + io_uring_cmd_cache_sqes(req); return -EAGAIN; } else if (ret == -EIOCBQUEUED) { return -EIOCBQUEUED; |