[PATCH v10 09/17] fuse: {io-uring} Make hash-list req unique finding functions non-static

Bernd Schubert
2025-01-20T01:29:24Z

fuse-over-io-uring uses existing functions to find requests based
on their unique id - make these functions non-static.

Signed-off-by: Bernd Schubert <bschubert@ddn.com>
Reviewed-by: Joanne Koong <joannelkoong@gmail.com>
---
fs/fuse/dev.c | 6 +++---
fs/fuse/fuse_dev_i.h | 6 ++++++
fs/fuse/fuse_i.h | 5 +++++
fs/fuse/inode.c | 2 +-
4 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 8b03a540e151daa1f62986aa79030e9e7a456059..aa33eba51c51dff6af2cdcf60bed9c3f6b4bc0d0 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -220,7 +220,7 @@ u64 fuse_get_unique(struct fuse_iqueue *fiq)
}
EXPORT_SYMBOL_GPL(fuse_get_unique);

-static unsigned int fuse_req_hash(u64 unique)
+unsigned int fuse_req_hash(u64 unique)
{
return hash_long(unique & ~FUSE_INT_REQ_BIT, FUSE_PQ_HASH_BITS);
}
@@ -1910,7 +1910,7 @@ static int fuse_notify(struct fuse_conn *fc, enum fuse_notify_code code,
}

/* Look up request on processing list by unique ID */
-static struct fuse_req *request_find(struct fuse_pqueue *fpq, u64 unique)
+struct fuse_req *fuse_request_find(struct fuse_pqueue *fpq, u64 unique)
{
unsigned int hash = fuse_req_hash(unique);
struct fuse_req *req;
@@ -1994,7 +1994,7 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
spin_lock(&fpq->lock);
req = NULL;
if (fpq->connected)
- req = request_find(fpq, oh.unique & ~FUSE_INT_REQ_BIT);
+ req = fuse_request_find(fpq, oh.unique & ~FUSE_INT_REQ_BIT);

err = -ENOENT;
if (!req) {
diff --git a/fs/fuse/fuse_dev_i.h b/fs/fuse/fuse_dev_i.h
index 4a8a4feb2df53fb84938a6711e6bcfd0f1b9f615..599a61536f8c85b3631b8584247a917bda92e719 100644
--- a/fs/fuse/fuse_dev_i.h
+++ b/fs/fuse/fuse_dev_i.h
@@ -7,6 +7,7 @@
#define _FS_FUSE_DEV_I_H

#include <linux/types.h>
+#include <linux/fs.h>

/* Ordinary requests have even IDs, while interrupts IDs are odd */
#define FUSE_INT_REQ_BIT (1ULL << 0)
@@ -14,6 +15,8 @@

struct fuse_arg;
struct fuse_args;
+struct fuse_pqueue;
+struct fuse_req;

struct fuse_copy_state {
int write;
@@ -42,6 +45,9 @@ static inline struct fuse_dev *fuse_get_dev(struct file *file)
return READ_ONCE(file->private_data);
}

+unsigned int fuse_req_hash(u64 unique);
+struct fuse_req *fuse_request_find(struct fuse_pqueue *fpq, u64 unique);
+
void fuse_dev_end_requests(struct list_head *head);

void fuse_copy_init(struct fuse_copy_state *cs, int write,
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index d75dd9b59a5c35b76919db760645464f604517f5..e545b0864dd51e82df61cc39bdf65d3d36a418dc 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -1237,6 +1237,11 @@ void fuse_change_entry_timeout(struct dentry *entry, struct fuse_entry_out *o);
*/
struct fuse_conn *fuse_conn_get(struct fuse_conn *fc);

+/**
+ * Initialize the fuse processing queue
+ */
+void fuse_pqueue_init(struct fuse_pqueue *fpq);
+
/**
* Initialize fuse_conn
*/
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index e4f9bbacfc1bc6f51d5d01b4c47b42cc159ed783..328797b9aac9a816a4ad2c69b6880dc6ef6222b0 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -938,7 +938,7 @@ static void fuse_iqueue_init(struct fuse_iqueue *fiq,
fiq->priv = priv;
}

-static void fuse_pqueue_init(struct fuse_pqueue *fpq)
+void fuse_pqueue_init(struct fuse_pqueue *fpq)
{
unsigned int i;

--
2.43.0