Re: [PATCH] io_uring: add missing IORING_MAP_OFF_ZCRX_REGION in io_uring_mmap

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On 2/21/25 08:59, Bui Quang Minh wrote:
Allow user to mmap the kernel allocated zerocopy-rx refill queue.

Reviewed-by: Pavel Begunkov <asml.silence@xxxxxxxxx>


Signed-off-by: Bui Quang Minh <minhquangbui99@xxxxxxxxx>
---
  io_uring/memmap.c | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/io_uring/memmap.c b/io_uring/memmap.c
index 361134544427..76fcc79656b0 100644
--- a/io_uring/memmap.c
+++ b/io_uring/memmap.c
@@ -271,6 +271,8 @@ static struct io_mapped_region *io_mmap_get_region(struct io_ring_ctx *ctx,
  		return io_pbuf_get_region(ctx, bgid);
  	case IORING_MAP_OFF_PARAM_REGION:
  		return &ctx->param_region;
+	case IORING_MAP_OFF_ZCRX_REGION:
+		return &ctx->zcrx_region;
  	}
  	return NULL;
  }

--
Pavel Begunkov





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