[PATCH] io_uring: add missing IORING_MAP_OFF_ZCRX_REGION in io_uring_mmap

Bui Quang Minh
2025-02-21T08:59:55Z

Allow user to mmap the kernel allocated zerocopy-rx refill queue.

Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
---
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;
}
--
2.43.0