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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@gmail.com>
Link: https://lore.kernel.org/r/5ead621051bc3374d1e8d96f816454906a6afd71.1740425922.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2025-02-24 19:45:03 +00:00 committed by Jens Axboe
parent c457eed55d
commit c72282dd86
1 changed files with 3 additions and 3 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

6
io_uring/rw.c
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@ -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);