[PATCH v2 1/4] io_uring/rw: allocate async data in io_prep_rw()

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rw always allocates async_data, so instead of doing that deeper in prep
calls inside of io_prep_rw_setup(), be a bit more explicit and do that
early on in io_prep_rw().

Signed-off-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
---
 io_uring/rw.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/io_uring/rw.c b/io_uring/rw.c
index 22612a956e75..7efc2337c5a0 100644
--- a/io_uring/rw.c
+++ b/io_uring/rw.c
@@ -203,9 +203,6 @@ static int io_prep_rw_setup(struct io_kiocb *req, int ddir, bool do_import)
 {
 	struct io_async_rw *rw;
 
-	if (io_rw_alloc_async(req))
-		return -ENOMEM;
-
 	if (!do_import || io_do_buffer_select(req))
 		return 0;
 
@@ -262,6 +259,9 @@ static int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe,
 	u64 attr_type_mask;
 	int ret;
 
+	if (io_rw_alloc_async(req))
+		return -ENOMEM;
+
 	rw->kiocb.ki_pos = READ_ONCE(sqe->off);
 	/* used for fixed read/write too - just read unconditionally */
 	req->buf_index = READ_ONCE(sqe->buf_index);
-- 
2.48.1





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