io_uring/kbuf: check for ring provided buffers first in recycling

This is the most likely of paths if a provided buffer is used, so offer
it up first and push the legacy buffers to later.

Link: https://lore.kernel.org/r/20250821020750.598432-14-axboe@kernel.dk
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/io_uring/kbuf.h b/io_uring/kbuf.h
index 1a53996..32f73ad 100644 (file)
--- a/io_uring/kbuf.h
+++ b/io_uring/kbuf.h
@@ -129,10 +129,10 @@ static inline bool io_kbuf_recycle(struct io_kiocb *req, struct io_buffer_list *
 {
        if (req->flags & REQ_F_BL_NO_RECYCLE)
                return false;
-       if (req->flags & REQ_F_BUFFER_SELECTED)
-               return io_kbuf_recycle_legacy(req, issue_flags);
        if (req->flags & REQ_F_BUFFER_RING)
                return io_kbuf_recycle_ring(req, bl);
+       if (req->flags & REQ_F_BUFFER_SELECTED)
+               return io_kbuf_recycle_legacy(req, issue_flags);
        return false;
 }