diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h
index 0f24fdad19c2..ef45b8bd1b35 100644
--- a/include/linux/io_uring_types.h
+++ b/include/linux/io_uring_types.h
@@ -220,7 +220,7 @@ struct io_ev_fd {
 };
 
 struct io_alloc_cache {
-	struct io_wq_work_node	list;
+	void			**entries;
 	unsigned int		nr_cached;
 	unsigned int		max_cached;
 	size_t			elem_size;
diff --git a/io_uring/alloc_cache.h b/io_uring/alloc_cache.h
index 138ad14b0b12..b7a38a2069cf 100644
--- a/io_uring/alloc_cache.h
+++ b/io_uring/alloc_cache.h
@@ -6,61 +6,56 @@
  */
 #define IO_ALLOC_CACHE_MAX	128
 
-struct io_cache_entry {
-	struct io_wq_work_node node;
-};
-
 static inline bool io_alloc_cache_put(struct io_alloc_cache *cache,
-				      struct io_cache_entry *entry)
+				      void *entry)
 {
 	if (cache->nr_cached < cache->max_cached) {
-		cache->nr_cached++;
-		wq_stack_add_head(&entry->node, &cache->list);
-		kasan_mempool_poison_object(entry);
+		if (!kasan_mempool_poison_object(entry))
+			return false;
+		cache->entries[cache->nr_cached++] = entry;
 		return true;
 	}
 	return false;
 }
 
-static inline bool io_alloc_cache_empty(struct io_alloc_cache *cache)
+static inline void *io_alloc_cache_get(struct io_alloc_cache *cache)
 {
-	return !cache->list.next;
-}
+	if (cache->nr_cached) {
+		void *entry = cache->entries[--cache->nr_cached];
 
-static inline struct io_cache_entry *io_alloc_cache_get(struct io_alloc_cache *cache)
-{
-	if (cache->list.next) {
-		struct io_cache_entry *entry;
-
-		entry = container_of(cache->list.next, struct io_cache_entry, node);
 		kasan_mempool_unpoison_object(entry, cache->elem_size);
-		cache->list.next = cache->list.next->next;
-		cache->nr_cached--;
 		return entry;
 	}
 
 	return NULL;
 }
 
-static inline void io_alloc_cache_init(struct io_alloc_cache *cache,
+/* returns false if the cache was initialized properly */
+static inline bool io_alloc_cache_init(struct io_alloc_cache *cache,
 				       unsigned max_nr, size_t size)
 {
-	cache->list.next = NULL;
-	cache->nr_cached = 0;
-	cache->max_cached = max_nr;
-	cache->elem_size = size;
+	cache->entries = kvmalloc_array(max_nr, sizeof(void *), GFP_KERNEL);
+	if (cache->entries) {
+		cache->nr_cached = 0;
+		cache->max_cached = max_nr;
+		cache->elem_size = size;
+		return false;
+	}
+	return true;
 }
 
 static inline void io_alloc_cache_free(struct io_alloc_cache *cache,
-					void (*free)(struct io_cache_entry *))
+				       void (*free)(const void *))
 {
-	while (1) {
-		struct io_cache_entry *entry = io_alloc_cache_get(cache);
+	void *entry;
 
-		if (!entry)
-			break;
+	if (!cache->entries)
+		return;
+
+	while ((entry = io_alloc_cache_get(cache)) != NULL)
 		free(entry);
-	}
-	cache->nr_cached = 0;
+
+	kvfree(cache->entries);
+	cache->entries = NULL;
 }
 #endif
diff --git a/io_uring/futex.c b/io_uring/futex.c
index 792a03df58de..914848f46beb 100644
--- a/io_uring/futex.c
+++ b/io_uring/futex.c
@@ -9,7 +9,7 @@
 
 #include "../kernel/futex/futex.h"
 #include "io_uring.h"
-#include "rsrc.h"
+#include "alloc_cache.h"
 #include "futex.h"
 
 struct io_futex {
@@ -27,27 +27,21 @@ struct io_futex {
 };
 
 struct io_futex_data {
-	union {
-		struct futex_q		q;
-		struct io_cache_entry	cache;
-	};
+	struct futex_q	q;
 	struct io_kiocb	*req;
 };
 
-void io_futex_cache_init(struct io_ring_ctx *ctx)
-{
-	io_alloc_cache_init(&ctx->futex_cache, IO_NODE_ALLOC_CACHE_MAX,
-				sizeof(struct io_futex_data));
-}
+#define IO_FUTEX_ALLOC_CACHE_MAX	32
 
-static void io_futex_cache_entry_free(struct io_cache_entry *entry)
+bool io_futex_cache_init(struct io_ring_ctx *ctx)
 {
-	kfree(container_of(entry, struct io_futex_data, cache));
+	return io_alloc_cache_init(&ctx->futex_cache, IO_FUTEX_ALLOC_CACHE_MAX,
+				sizeof(struct io_futex_data));
 }
 
 void io_futex_cache_free(struct io_ring_ctx *ctx)
 {
-	io_alloc_cache_free(&ctx->futex_cache, io_futex_cache_entry_free);
+	io_alloc_cache_free(&ctx->futex_cache, kfree);
 }
 
 static void __io_futex_complete(struct io_kiocb *req, struct io_tw_state *ts)
@@ -63,7 +57,7 @@ static void io_futex_complete(struct io_kiocb *req, struct io_tw_state *ts)
 	struct io_ring_ctx *ctx = req->ctx;
 
 	io_tw_lock(ctx, ts);
-	if (!io_alloc_cache_put(&ctx->futex_cache, &ifd->cache))
+	if (!io_alloc_cache_put(&ctx->futex_cache, ifd))
 		kfree(ifd);
 	__io_futex_complete(req, ts);
 }
@@ -259,11 +253,11 @@ static void io_futex_wake_fn(struct wake_q_head *wake_q, struct futex_q *q)
 
 static struct io_futex_data *io_alloc_ifd(struct io_ring_ctx *ctx)
 {
-	struct io_cache_entry *entry;
+	struct io_futex_data *ifd;
 
-	entry = io_alloc_cache_get(&ctx->futex_cache);
-	if (entry)
-		return container_of(entry, struct io_futex_data, cache);
+	ifd = io_alloc_cache_get(&ctx->futex_cache);
+	if (ifd)
+		return ifd;
 
 	return kmalloc(sizeof(struct io_futex_data), GFP_NOWAIT);
 }
diff --git a/io_uring/futex.h b/io_uring/futex.h
index 0847e9e8a127..b8bb09873d57 100644
--- a/io_uring/futex.h
+++ b/io_uring/futex.h
@@ -13,7 +13,7 @@ int io_futex_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd,
 		    unsigned int issue_flags);
 bool io_futex_remove_all(struct io_ring_ctx *ctx, struct task_struct *task,
 			 bool cancel_all);
-void io_futex_cache_init(struct io_ring_ctx *ctx);
+bool io_futex_cache_init(struct io_ring_ctx *ctx);
 void io_futex_cache_free(struct io_ring_ctx *ctx);
 #else
 static inline int io_futex_cancel(struct io_ring_ctx *ctx,
@@ -27,8 +27,9 @@ static inline bool io_futex_remove_all(struct io_ring_ctx *ctx,
 {
 	return false;
 }
-static inline void io_futex_cache_init(struct io_ring_ctx *ctx)
+static inline bool io_futex_cache_init(struct io_ring_ctx *ctx)
 {
+	return false;
 }
 static inline void io_futex_cache_free(struct io_ring_ctx *ctx)
 {
diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index 579618fad833..1d453eb8e49f 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -276,6 +276,7 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p)
 {
 	struct io_ring_ctx *ctx;
 	int hash_bits;
+	bool ret;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
@@ -305,17 +306,19 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p)
 	INIT_LIST_HEAD(&ctx->cq_overflow_list);
 	INIT_LIST_HEAD(&ctx->io_buffers_cache);
 	INIT_HLIST_HEAD(&ctx->io_buf_list);
-	io_alloc_cache_init(&ctx->rsrc_node_cache, IO_NODE_ALLOC_CACHE_MAX,
+	ret = io_alloc_cache_init(&ctx->rsrc_node_cache, IO_NODE_ALLOC_CACHE_MAX,
 			    sizeof(struct io_rsrc_node));
-	io_alloc_cache_init(&ctx->apoll_cache, IO_ALLOC_CACHE_MAX,
+	ret |= io_alloc_cache_init(&ctx->apoll_cache, IO_ALLOC_CACHE_MAX,
 			    sizeof(struct async_poll));
-	io_alloc_cache_init(&ctx->netmsg_cache, IO_ALLOC_CACHE_MAX,
+	ret |= io_alloc_cache_init(&ctx->netmsg_cache, IO_ALLOC_CACHE_MAX,
 			    sizeof(struct io_async_msghdr));
-	io_alloc_cache_init(&ctx->rw_cache, IO_ALLOC_CACHE_MAX,
+	ret |= io_alloc_cache_init(&ctx->rw_cache, IO_ALLOC_CACHE_MAX,
 			    sizeof(struct io_async_rw));
-	io_alloc_cache_init(&ctx->uring_cache, IO_ALLOC_CACHE_MAX,
+	ret |= io_alloc_cache_init(&ctx->uring_cache, IO_ALLOC_CACHE_MAX,
 			    sizeof(struct uring_cache));
-	io_futex_cache_init(ctx);
+	ret |= io_futex_cache_init(ctx);
+	if (ret)
+		goto err;
 	init_completion(&ctx->ref_comp);
 	xa_init_flags(&ctx->personalities, XA_FLAGS_ALLOC1);
 	mutex_init(&ctx->uring_lock);
@@ -345,6 +348,12 @@ static __cold struct io_ring_ctx *io_ring_ctx_alloc(struct io_uring_params *p)
 
 	return ctx;
 err:
+	io_alloc_cache_free(&ctx->rsrc_node_cache, kfree);
+	io_alloc_cache_free(&ctx->apoll_cache, kfree);
+	io_alloc_cache_free(&ctx->netmsg_cache, io_netmsg_cache_free);
+	io_alloc_cache_free(&ctx->rw_cache, io_rw_cache_free);
+	io_alloc_cache_free(&ctx->uring_cache, kfree);
+	io_futex_cache_free(ctx);
 	kfree(ctx->cancel_table.hbs);
 	kfree(ctx->cancel_table_locked.hbs);
 	xa_destroy(&ctx->io_bl_xa);
@@ -1482,7 +1491,7 @@ static void io_free_batch_list(struct io_ring_ctx *ctx,
 
 				if (apoll->double_poll)
 					kfree(apoll->double_poll);
-				if (!io_alloc_cache_put(&ctx->apoll_cache, &apoll->cache))
+				if (!io_alloc_cache_put(&ctx->apoll_cache, apoll))
 					kfree(apoll);
 				req->flags &= ~REQ_F_POLLED;
 			}
@@ -2778,11 +2787,6 @@ static void io_req_caches_free(struct io_ring_ctx *ctx)
 	mutex_unlock(&ctx->uring_lock);
 }
 
-static void io_rsrc_node_cache_free(struct io_cache_entry *entry)
-{
-	kfree(container_of(entry, struct io_rsrc_node, cache));
-}
-
 static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx)
 {
 	io_sq_thread_finish(ctx);
@@ -2797,10 +2801,10 @@ static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx)
 		__io_sqe_files_unregister(ctx);
 	io_cqring_overflow_kill(ctx);
 	io_eventfd_unregister(ctx);
-	io_alloc_cache_free(&ctx->apoll_cache, io_apoll_cache_free);
+	io_alloc_cache_free(&ctx->apoll_cache, kfree);
 	io_alloc_cache_free(&ctx->netmsg_cache, io_netmsg_cache_free);
 	io_alloc_cache_free(&ctx->rw_cache, io_rw_cache_free);
-	io_alloc_cache_free(&ctx->uring_cache, io_uring_cache_free);
+	io_alloc_cache_free(&ctx->uring_cache, kfree);
 	io_futex_cache_free(ctx);
 	io_destroy_buffers(ctx);
 	mutex_unlock(&ctx->uring_lock);
@@ -2816,7 +2820,7 @@ static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx)
 	WARN_ON_ONCE(!list_empty(&ctx->rsrc_ref_list));
 	WARN_ON_ONCE(!list_empty(&ctx->ltimeout_list));
 
-	io_alloc_cache_free(&ctx->rsrc_node_cache, io_rsrc_node_cache_free);
+	io_alloc_cache_free(&ctx->rsrc_node_cache, kfree);
 	if (ctx->mm_account) {
 		mmdrop(ctx->mm_account);
 		ctx->mm_account = NULL;
diff --git a/io_uring/net.c b/io_uring/net.c
index 3bef562b67de..d0abc5689066 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -137,7 +137,7 @@ static void io_netmsg_recycle(struct io_kiocb *req, unsigned int issue_flags)
 
 	/* Let normal cleanup path reap it if we fail adding to the cache */
 	iov = hdr->free_iov;
-	if (io_alloc_cache_put(&req->ctx->netmsg_cache, &hdr->cache)) {
+	if (io_alloc_cache_put(&req->ctx->netmsg_cache, hdr)) {
 		if (iov)
 			kasan_mempool_poison_object(iov);
 		req->async_data = NULL;
@@ -148,12 +148,10 @@ static void io_netmsg_recycle(struct io_kiocb *req, unsigned int issue_flags)
 static struct io_async_msghdr *io_msg_alloc_async(struct io_kiocb *req)
 {
 	struct io_ring_ctx *ctx = req->ctx;
-	struct io_cache_entry *entry;
 	struct io_async_msghdr *hdr;
 
-	entry = io_alloc_cache_get(&ctx->netmsg_cache);
-	if (entry) {
-		hdr = container_of(entry, struct io_async_msghdr, cache);
+	hdr = io_alloc_cache_get(&ctx->netmsg_cache);
+	if (hdr) {
 		if (hdr->free_iov) {
 			kasan_mempool_unpoison_object(hdr->free_iov,
 				hdr->free_iov_nr * sizeof(struct iovec));
@@ -1490,11 +1488,10 @@ int io_connect(struct io_kiocb *req, unsigned int issue_flags)
 	return IOU_OK;
 }
 
-void io_netmsg_cache_free(struct io_cache_entry *entry)
+void io_netmsg_cache_free(const void *entry)
 {
-	struct io_async_msghdr *kmsg;
+	struct io_async_msghdr *kmsg = (struct io_async_msghdr *) entry;
 
-	kmsg = container_of(entry, struct io_async_msghdr, cache);
 	if (kmsg->free_iov) {
 		kasan_mempool_unpoison_object(kmsg->free_iov,
 				kmsg->free_iov_nr * sizeof(struct iovec));
diff --git a/io_uring/net.h b/io_uring/net.h
index b47b43ec6459..0eb1c1920fc9 100644
--- a/io_uring/net.h
+++ b/io_uring/net.h
@@ -3,23 +3,15 @@
 #include <linux/net.h>
 #include <linux/uio.h>
 
-#include "alloc_cache.h"
-
 struct io_async_msghdr {
 #if defined(CONFIG_NET)
-	union {
-		struct iovec			fast_iov;
-		struct {
-			struct io_cache_entry	cache;
-			/* entry size of ->free_iov, if valid */
-			int			free_iov_nr;
-		};
-	};
+	struct iovec			fast_iov;
 	/* points to an allocated iov, if NULL we use fast_iov instead */
 	struct iovec			*free_iov;
+	int				free_iov_nr;
+	int				namelen;
 	__kernel_size_t			controllen;
 	__kernel_size_t			payloadlen;
-	int				namelen;
 	struct sockaddr __user		*uaddr;
 	struct msghdr			msg;
 	struct sockaddr_storage		addr;
@@ -57,9 +49,9 @@ int io_sendmsg_zc(struct io_kiocb *req, unsigned int issue_flags);
 int io_send_zc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
 void io_send_zc_cleanup(struct io_kiocb *req);
 
-void io_netmsg_cache_free(struct io_cache_entry *entry);
+void io_netmsg_cache_free(const void *entry);
 #else
-static inline void io_netmsg_cache_free(struct io_cache_entry *entry)
+static inline void io_netmsg_cache_free(const void *entry)
 {
 }
 #endif
diff --git a/io_uring/poll.c b/io_uring/poll.c
index 5d55bbf1de15..0a8e02944689 100644
--- a/io_uring/poll.c
+++ b/io_uring/poll.c
@@ -14,6 +14,7 @@
 #include <uapi/linux/io_uring.h>
 
 #include "io_uring.h"
+#include "alloc_cache.h"
 #include "refs.h"
 #include "napi.h"
 #include "opdef.h"
@@ -686,17 +687,15 @@ static struct async_poll *io_req_alloc_apoll(struct io_kiocb *req,
 					     unsigned issue_flags)
 {
 	struct io_ring_ctx *ctx = req->ctx;
-	struct io_cache_entry *entry;
 	struct async_poll *apoll;
 
 	if (req->flags & REQ_F_POLLED) {
 		apoll = req->apoll;
 		kfree(apoll->double_poll);
 	} else if (!(issue_flags & IO_URING_F_UNLOCKED)) {
-		entry = io_alloc_cache_get(&ctx->apoll_cache);
-		if (entry == NULL)
+		apoll = io_alloc_cache_get(&ctx->apoll_cache);
+		if (!apoll)
 			goto alloc_apoll;
-		apoll = container_of(entry, struct async_poll, cache);
 		apoll->poll.retries = APOLL_MAX_RETRY;
 	} else {
 alloc_apoll:
@@ -1055,8 +1054,3 @@ int io_poll_remove(struct io_kiocb *req, unsigned int issue_flags)
 	io_req_set_res(req, ret, 0);
 	return IOU_OK;
 }
-
-void io_apoll_cache_free(struct io_cache_entry *entry)
-{
-	kfree(container_of(entry, struct async_poll, cache));
-}
diff --git a/io_uring/poll.h b/io_uring/poll.h
index 1dacae9e816c..5c240f11069a 100644
--- a/io_uring/poll.h
+++ b/io_uring/poll.h
@@ -1,7 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
 
-#include "alloc_cache.h"
-
 enum {
 	IO_APOLL_OK,
 	IO_APOLL_ABORTED,
@@ -17,10 +15,7 @@ struct io_poll {
 };
 
 struct async_poll {
-	union {
-		struct io_poll		poll;
-		struct io_cache_entry	cache;
-	};
+	struct io_poll		poll;
 	struct io_poll		*double_poll;
 };
 
@@ -46,6 +41,4 @@ int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags);
 bool io_poll_remove_all(struct io_ring_ctx *ctx, struct task_struct *tsk,
 			bool cancel_all);
 
-void io_apoll_cache_free(struct io_cache_entry *entry);
-
 void io_poll_task_func(struct io_kiocb *req, struct io_tw_state *ts);
diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
index 4818b79231dd..7b8a056f98ed 100644
--- a/io_uring/rsrc.c
+++ b/io_uring/rsrc.c
@@ -13,6 +13,7 @@
 #include <uapi/linux/io_uring.h>
 
 #include "io_uring.h"
+#include "alloc_cache.h"
 #include "openclose.h"
 #include "rsrc.h"
 
@@ -169,7 +170,7 @@ static void io_rsrc_put_work(struct io_rsrc_node *node)
 
 void io_rsrc_node_destroy(struct io_ring_ctx *ctx, struct io_rsrc_node *node)
 {
-	if (!io_alloc_cache_put(&ctx->rsrc_node_cache, &node->cache))
+	if (!io_alloc_cache_put(&ctx->rsrc_node_cache, node))
 		kfree(node);
 }
 
@@ -197,12 +198,9 @@ void io_rsrc_node_ref_zero(struct io_rsrc_node *node)
 struct io_rsrc_node *io_rsrc_node_alloc(struct io_ring_ctx *ctx)
 {
 	struct io_rsrc_node *ref_node;
-	struct io_cache_entry *entry;
 
-	entry = io_alloc_cache_get(&ctx->rsrc_node_cache);
-	if (entry) {
-		ref_node = container_of(entry, struct io_rsrc_node, cache);
-	} else {
+	ref_node = io_alloc_cache_get(&ctx->rsrc_node_cache);
+	if (!ref_node) {
 		ref_node = kzalloc(sizeof(*ref_node), GFP_KERNEL);
 		if (!ref_node)
 			return NULL;
diff --git a/io_uring/rsrc.h b/io_uring/rsrc.h
index e21000238954..83c079a707f8 100644
--- a/io_uring/rsrc.h
+++ b/io_uring/rsrc.h
@@ -2,8 +2,6 @@
 #ifndef IOU_RSRC_H
 #define IOU_RSRC_H
 
-#include "alloc_cache.h"
-
 #define IO_NODE_ALLOC_CACHE_MAX 32
 
 #define IO_RSRC_TAG_TABLE_SHIFT	(PAGE_SHIFT - 3)
@@ -36,10 +34,7 @@ struct io_rsrc_data {
 };
 
 struct io_rsrc_node {
-	union {
-		struct io_cache_entry		cache;
-		struct io_ring_ctx		*ctx;
-	};
+	struct io_ring_ctx		*ctx;
 	int				refs;
 	bool				empty;
 	u16				type;
diff --git a/io_uring/rw.c b/io_uring/rw.c
index e84d322a6150..3134a6ece1be 100644
--- a/io_uring/rw.c
+++ b/io_uring/rw.c
@@ -18,6 +18,7 @@
 #include "io_uring.h"
 #include "opdef.h"
 #include "kbuf.h"
+#include "alloc_cache.h"
 #include "rsrc.h"
 #include "poll.h"
 #include "rw.h"
@@ -154,7 +155,7 @@ static void io_rw_recycle(struct io_kiocb *req, unsigned int issue_flags)
 		return;
 	}
 	iov = rw->free_iovec;
-	if (io_alloc_cache_put(&req->ctx->rw_cache, &rw->cache)) {
+	if (io_alloc_cache_put(&req->ctx->rw_cache, rw)) {
 		if (iov)
 			kasan_mempool_poison_object(iov);
 		req->async_data = NULL;
@@ -200,12 +201,10 @@ static void io_req_rw_cleanup(struct io_kiocb *req, unsigned int issue_flags)
 static int io_rw_alloc_async(struct io_kiocb *req)
 {
 	struct io_ring_ctx *ctx = req->ctx;
-	struct io_cache_entry *entry;
 	struct io_async_rw *rw;
 
-	entry = io_alloc_cache_get(&ctx->rw_cache);
-	if (entry) {
-		rw = container_of(entry, struct io_async_rw, cache);
+	rw = io_alloc_cache_get(&ctx->rw_cache);
+	if (rw) {
 		if (rw->free_iovec) {
 			kasan_mempool_unpoison_object(rw->free_iovec,
 				rw->free_iov_nr * sizeof(struct iovec));
@@ -1168,11 +1167,10 @@ int io_do_iopoll(struct io_ring_ctx *ctx, bool force_nonspin)
 	return nr_events;
 }
 
-void io_rw_cache_free(struct io_cache_entry *entry)
+void io_rw_cache_free(const void *entry)
 {
-	struct io_async_rw *rw;
+	struct io_async_rw *rw = (struct io_async_rw *) entry;
 
-	rw = container_of(entry, struct io_async_rw, cache);
 	if (rw->free_iovec) {
 		kasan_mempool_unpoison_object(rw->free_iovec,
 				rw->free_iov_nr * sizeof(struct iovec));
diff --git a/io_uring/rw.h b/io_uring/rw.h
index cf51d0eb407a..3f432dc75441 100644
--- a/io_uring/rw.h
+++ b/io_uring/rw.h
@@ -3,10 +3,7 @@
 #include <linux/pagemap.h>
 
 struct io_async_rw {
-	union {
-		size_t			bytes_done;
-		struct io_cache_entry	cache;
-	};
+	size_t				bytes_done;
 	struct iov_iter			iter;
 	struct iov_iter_state		iter_state;
 	struct iovec			fast_iov;
@@ -28,4 +25,4 @@ void io_rw_fail(struct io_kiocb *req);
 void io_req_rw_complete(struct io_kiocb *req, struct io_tw_state *ts);
 int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
 int io_read_mshot(struct io_kiocb *req, unsigned int issue_flags);
-void io_rw_cache_free(struct io_cache_entry *entry);
+void io_rw_cache_free(const void *entry);
diff --git a/io_uring/uring_cmd.c b/io_uring/uring_cmd.c
index 92346b5d9f5b..334d31dd6628 100644
--- a/io_uring/uring_cmd.c
+++ b/io_uring/uring_cmd.c
@@ -11,18 +11,17 @@
 #include <asm/ioctls.h>
 
 #include "io_uring.h"
+#include "alloc_cache.h"
 #include "rsrc.h"
 #include "uring_cmd.h"
 
 static struct uring_cache *io_uring_async_get(struct io_kiocb *req)
 {
 	struct io_ring_ctx *ctx = req->ctx;
-	struct io_cache_entry *entry;
 	struct uring_cache *cache;
 
-	entry = io_alloc_cache_get(&ctx->uring_cache);
-	if (entry) {
-		cache = container_of(entry, struct uring_cache, cache);
+	cache = io_alloc_cache_get(&ctx->uring_cache);
+	if (cache) {
 		req->flags |= REQ_F_ASYNC_DATA;
 		req->async_data = cache;
 		return cache;
@@ -39,7 +38,7 @@ static void io_req_uring_cleanup(struct io_kiocb *req, unsigned int issue_flags)
 
 	if (issue_flags & IO_URING_F_UNLOCKED)
 		return;
-	if (io_alloc_cache_put(&req->ctx->uring_cache, &cache->cache)) {
+	if (io_alloc_cache_put(&req->ctx->uring_cache, cache)) {
 		ioucmd->sqe = NULL;
 		req->async_data = NULL;
 		req->flags &= ~REQ_F_ASYNC_DATA;
@@ -354,8 +353,3 @@ int io_uring_cmd_sock(struct io_uring_cmd *cmd, unsigned int issue_flags)
 }
 EXPORT_SYMBOL_GPL(io_uring_cmd_sock);
 #endif
-
-void io_uring_cache_free(struct io_cache_entry *entry)
-{
-	kfree(container_of(entry, struct uring_cache, cache));
-}
diff --git a/io_uring/uring_cmd.h b/io_uring/uring_cmd.h
index 477ea8865639..a361f98664d2 100644
--- a/io_uring/uring_cmd.h
+++ b/io_uring/uring_cmd.h
@@ -1,15 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0
 
 struct uring_cache {
-	union {
-		struct io_cache_entry cache;
-		struct io_uring_sqe sqes[2];
-	};
+	struct io_uring_sqe sqes[2];
 };
 
 int io_uring_cmd(struct io_kiocb *req, unsigned int issue_flags);
 int io_uring_cmd_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
-void io_uring_cache_free(struct io_cache_entry *entry);
 
 bool io_uring_try_cancel_uring_cmd(struct io_ring_ctx *ctx,
 				   struct task_struct *task, bool cancel_all);