From: Miklos Szeredi <mszeredi@redhat.com>
Date: Tue, 17 Mar 2026 14:29:04 +0000 (+0100)
Subject: fuse: move io_uring related members to fuse_chan
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0ea79b7d077f57db79b804cefb791c527d0ca9ba;p=thirdparty%2Fkernel%2Flinux.git

fuse: move io_uring related members to fuse_chan

Move:

 - io_uring
 - ring

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
---

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 3c05a84b5d706..81bb40778a5b2 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -80,7 +80,7 @@ void fuse_set_initialized(struct fuse_conn *fc)
 static bool fuse_block_alloc(struct fuse_conn *fc, bool for_background)
 {
 	return !fc->chan->initialized || (for_background && fc->chan->blocked) ||
-	       (fc->io_uring && fc->chan->connected && !fuse_uring_ready(fc));
+	       (fc->chan->io_uring && fc->chan->connected && !fuse_uring_ready(fc));
 }
 
 static void fuse_drop_waiting(struct fuse_conn *fc)
diff --git a/fs/fuse/dev_uring.c b/fs/fuse/dev_uring.c
index 723f7f2e2b1e7..eef7f7eac7957 100644
--- a/fs/fuse/dev_uring.c
+++ b/fs/fuse/dev_uring.c
@@ -159,7 +159,7 @@ static bool ent_list_request_expired(struct fuse_conn *fc, struct list_head *lis
 
 bool fuse_uring_request_expired(struct fuse_conn *fc)
 {
-	struct fuse_ring *ring = fc->ring;
+	struct fuse_ring *ring = fc->chan->ring;
 	struct fuse_ring_queue *queue;
 	int qid;
 
@@ -187,7 +187,7 @@ bool fuse_uring_request_expired(struct fuse_conn *fc)
 
 void fuse_uring_destruct(struct fuse_conn *fc)
 {
-	struct fuse_ring *ring = fc->ring;
+	struct fuse_ring *ring = fc->chan->ring;
 	int qid;
 
 	if (!ring)
@@ -218,7 +218,7 @@ void fuse_uring_destruct(struct fuse_conn *fc)
 
 	kfree(ring->queues);
 	kfree(ring);
-	fc->ring = NULL;
+	fc->chan->ring = NULL;
 }
 
 /*
@@ -231,7 +231,7 @@ static struct fuse_ring *fuse_uring_create(struct fuse_conn *fc)
 	struct fuse_ring *res = NULL;
 	size_t max_payload_size;
 
-	ring = kzalloc_obj(*fc->ring, GFP_KERNEL_ACCOUNT);
+	ring = kzalloc_obj(*fc->chan->ring, GFP_KERNEL_ACCOUNT);
 	if (!ring)
 		return NULL;
 
@@ -248,10 +248,10 @@ static struct fuse_ring *fuse_uring_create(struct fuse_conn *fc)
 		spin_unlock(&fc->lock);
 		goto out_err;
 	}
-	if (fc->ring) {
+	if (fc->chan->ring) {
 		/* race, another thread created the ring in the meantime */
 		spin_unlock(&fc->lock);
-		res = fc->ring;
+		res = fc->chan->ring;
 		goto out_err;
 	}
 
@@ -260,7 +260,7 @@ static struct fuse_ring *fuse_uring_create(struct fuse_conn *fc)
 	ring->nr_queues = nr_queues;
 	ring->fc = fc;
 	ring->max_payload_sz = max_payload_size;
-	smp_store_release(&fc->ring, ring);
+	smp_store_release(&fc->chan->ring, ring);
 
 	spin_unlock(&fc->lock);
 	return ring;
@@ -898,7 +898,7 @@ static int fuse_uring_commit_fetch(struct io_uring_cmd *cmd, int issue_flags,
 								       struct fuse_uring_cmd_req);
 	struct fuse_ring_ent *ent;
 	int err;
-	struct fuse_ring *ring = fc->ring;
+	struct fuse_ring *ring = fc->chan->ring;
 	struct fuse_ring_queue *queue;
 	uint64_t commit_id = READ_ONCE(cmd_req->commit_id);
 	unsigned int qid = READ_ONCE(cmd_req->qid);
@@ -1118,7 +1118,7 @@ static int fuse_uring_register(struct io_uring_cmd *cmd,
 {
 	const struct fuse_uring_cmd_req *cmd_req = io_uring_sqe128_cmd(cmd->sqe,
 								       struct fuse_uring_cmd_req);
-	struct fuse_ring *ring = smp_load_acquire(&fc->ring);
+	struct fuse_ring *ring = smp_load_acquire(&fc->chan->ring);
 	struct fuse_ring_queue *queue;
 	struct fuse_ring_ent *ent;
 	int err;
@@ -1183,7 +1183,7 @@ int fuse_uring_cmd(struct io_uring_cmd *cmd, unsigned int issue_flags)
 	fc = fud->fc;
 
 	/* Once a connection has io-uring enabled on it, it can't be disabled */
-	if (!enable_uring && !fc->io_uring) {
+	if (!enable_uring && !fc->chan->io_uring) {
 		pr_info_ratelimited("fuse-io-uring is disabled\n");
 		return -EOPNOTSUPP;
 	}
@@ -1206,7 +1206,7 @@ int fuse_uring_cmd(struct io_uring_cmd *cmd, unsigned int issue_flags)
 		if (err) {
 			pr_info_once("FUSE_IO_URING_CMD_REGISTER failed err=%d\n",
 				     err);
-			fc->io_uring = 0;
+			fc->chan->io_uring = 0;
 			wake_up_all(&fc->chan->blocked_waitq);
 			return err;
 		}
@@ -1307,7 +1307,7 @@ static void fuse_uring_dispatch_ent(struct fuse_ring_ent *ent)
 void fuse_uring_queue_fuse_req(struct fuse_iqueue *fiq, struct fuse_req *req)
 {
 	struct fuse_conn *fc = req->fm->fc;
-	struct fuse_ring *ring = fc->ring;
+	struct fuse_ring *ring = fc->chan->ring;
 	struct fuse_ring_queue *queue;
 	struct fuse_ring_ent *ent = NULL;
 	int err;
@@ -1350,7 +1350,7 @@ err:
 bool fuse_uring_queue_bq_req(struct fuse_req *req)
 {
 	struct fuse_conn *fc = req->fm->fc;
-	struct fuse_ring *ring = fc->ring;
+	struct fuse_ring *ring = fc->chan->ring;
 	struct fuse_ring_queue *queue;
 	struct fuse_ring_ent *ent = NULL;
 
diff --git a/fs/fuse/dev_uring_i.h b/fs/fuse/dev_uring_i.h
index e60057b5dbf83..35604f1c7058a 100644
--- a/fs/fuse/dev_uring_i.h
+++ b/fs/fuse/dev_uring_i.h
@@ -148,7 +148,7 @@ bool fuse_uring_request_expired(struct fuse_conn *fc);
 
 static inline void fuse_uring_abort(struct fuse_conn *fc)
 {
-	struct fuse_ring *ring = fc->ring;
+	struct fuse_ring *ring = fc->chan->ring;
 
 	if (ring == NULL)
 		return;
@@ -161,7 +161,7 @@ static inline void fuse_uring_abort(struct fuse_conn *fc)
 
 static inline void fuse_uring_wait_stopped_queues(struct fuse_conn *fc)
 {
-	struct fuse_ring *ring = fc->ring;
+	struct fuse_ring *ring = fc->chan->ring;
 
 	if (ring)
 		wait_event(ring->stop_waitq,
@@ -170,7 +170,7 @@ static inline void fuse_uring_wait_stopped_queues(struct fuse_conn *fc)
 
 static inline bool fuse_uring_ready(struct fuse_conn *fc)
 {
-	struct fuse_ring *ring = READ_ONCE(fc->ring);
+	struct fuse_ring *ring = READ_ONCE(fc->chan->ring);
 
 	return ring && smp_load_acquire(&ring->ready);
 }
diff --git a/fs/fuse/fuse_dev_i.h b/fs/fuse/fuse_dev_i.h
index 3c350dfd31b48..916aa98671474 100644
--- a/fs/fuse/fuse_dev_i.h
+++ b/fs/fuse/fuse_dev_i.h
@@ -127,6 +127,14 @@ struct fuse_chan {
 
 	/** The number of requests waiting for completion */
 	atomic_t num_waiting;
+
+	/* Use io_uring for communication */
+	unsigned int io_uring;
+
+#ifdef CONFIG_FUSE_IO_URING
+	/**  uring connection information*/
+	struct fuse_ring *ring;
+#endif
 };
 
 #define FUSE_PQ_HASH_BITS 8
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index a56e49c7a3249..701bb18dcb001 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -764,9 +764,6 @@ struct fuse_conn {
 	/* Is synchronous FUSE_INIT allowed? */
 	unsigned int sync_init:1;
 
-	/* Use io_uring for communication */
-	unsigned int io_uring;
-
 	/** Maximum stack depth for passthrough backing files */
 	int max_stack_depth;
 
@@ -819,11 +816,6 @@ struct fuse_conn {
 	struct idr backing_files_map;
 #endif
 
-#ifdef CONFIG_FUSE_IO_URING
-	/**  uring connection information*/
-	struct fuse_ring *ring;
-#endif
-
 	/** Only used if the connection opts into request timeouts */
 	struct {
 		/* Worker for checking if any requests have timed out */
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 13d788abe6de1..e34881ae8b9fd 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -1412,7 +1412,7 @@ static void process_init_reply(struct fuse_mount *fm, struct fuse_args *args,
 					ok = false;
 			}
 			if (flags & FUSE_OVER_IO_URING && fuse_uring_enabled())
-				fc->io_uring = 1;
+				fc->chan->io_uring = 1;
 
 			if (flags & FUSE_REQUEST_TIMEOUT)
 				timeout = arg->request_timeout;