diff --git a/src/backend/storage/aio/method_io_uring.c b/src/backend/storage/aio/method_io_uring.c
index c719ba2727a..f2c1ad3ef81 100644
--- a/src/backend/storage/aio/method_io_uring.c
+++ b/src/backend/storage/aio/method_io_uring.c
@@ -29,6 +29,7 @@

 #ifdef IOMETHOD_IO_URING_ENABLED

+#include <sys/mman.h>
 #include <liburing.h>

 #include "miscadmin.h"
@@ -128,6 +129,8 @@ pgaio_uring_shmem_init(bool first_time)
 {
 	int			TotalProcs = MaxBackends + NUM_AUXILIARY_PROCS - MAX_IO_WORKERS;
 	bool		found;
+	size_t		ring_sizes;
+	void		*ring_ptr, *cur;

 	pgaio_uring_contexts = (PgAioUringContext *)
 		ShmemInitStruct("AioUring", pgaio_uring_shmem_size(), &found);
@@ -135,10 +138,15 @@ pgaio_uring_shmem_init(bool first_time)
 	if (found)
 		return;

+	ring_sizes = 16 * 1024 * 1024;
+	ring_ptr = mmap(NULL, ring_sizes, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS|MAP_HUGETLB, -1, 0);
+	cur = ring_ptr;
+
 	for (int contextno = 0; contextno < TotalProcs; contextno++)
 	{
 		PgAioUringContext *context = &pgaio_uring_contexts[contextno];
 		int			ret;
+		struct io_uring_params p = { .flags = IORING_SETUP_NO_MMAP, };

 		/*
 		 * Right now a high TotalProcs will cause problems in two ways:
@@ -158,7 +166,7 @@ pgaio_uring_shmem_init(bool first_time)
 		 * be worth using that - also need to evaluate if that causes
 		 * noticeable additional contention?
 		 */
-		ret = io_uring_queue_init(io_max_concurrency, &context->io_uring_ring, 0);
+		ret = io_uring_queue_init_mem(io_max_concurrency, &context->io_uring_ring, &p, cur, ring_sizes);
 		if (ret < 0)
 		{
 			char	   *hint = NULL;
@@ -190,7 +198,8 @@ pgaio_uring_shmem_init(bool first_time)
 					errmsg("could not setup io_uring queue: %m"),
 					hint != NULL ? errhint("%s", hint) : 0);
 		}
-
+		ring_sizes -= ret;
+		cur += ret;
 		LWLockInitialize(&context->completion_lock, LWTRANCHE_AIO_URING_COMPLETION);
 	}
 }