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Subject[PATCH 2/5] FUSE: export symbols to be used by CUSE
Date
Export the following symbols for CUSE.

fuse_conn_put()
fuse_conn_get()
fuse_get_root_inode()
fuse_super_operations
fuse_send_init()
fuse_flush()
fuse_fsync()
fuse_direct_io()
fuse_file_lock()
fuse_file_flock()
fuse_file_llseek()
fuse_file_ioctl()
fuse_file_compat_ioctl()
fuse_file_poll()

Signed-off-by: Tejun Heo <tj@kernel.org>
---
fs/fuse/dev.c | 9 ++++++++-
fs/fuse/file.c | 30 ++++++++++++++++++++----------
fs/fuse/fuse_i.h | 29 +++++++++++++++++++++++++++++
fs/fuse/inode.c | 11 ++++++++---
4 files changed, 65 insertions(+), 14 deletions(-)

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index b448dfd..75e2775 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -46,6 +46,7 @@ struct fuse_req *fuse_request_alloc(void)
fuse_request_init(req);
return req;
}
+EXPORT_SYMBOL_GPL(fuse_request_alloc);

struct fuse_req *fuse_request_alloc_nofs(void)
{
@@ -124,6 +125,7 @@ struct fuse_req *fuse_get_req(struct fuse_conn *fc)
atomic_dec(&fc->num_waiting);
return ERR_PTR(err);
}
+EXPORT_SYMBOL_GPL(fuse_get_req);

/*
* Return request in fuse_file->reserved_req. However that may
@@ -208,6 +210,7 @@ void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req)
fuse_request_free(req);
}
}
+EXPORT_SYMBOL_GPL(fuse_put_request);

static unsigned len_args(unsigned numargs, struct fuse_arg *args)
{
@@ -398,6 +401,7 @@ void fuse_request_send(struct fuse_conn *fc, struct fuse_req *req)
}
spin_unlock(&fc->lock);
}
+EXPORT_SYMBOL_GPL(fuse_request_send);

static void fuse_request_send_nowait_locked(struct fuse_conn *fc,
struct fuse_req *req)
@@ -1092,8 +1096,9 @@ void fuse_abort_conn(struct fuse_conn *fc)
}
spin_unlock(&fc->lock);
}
+EXPORT_SYMBOL_GPL(fuse_abort_conn);

-static int fuse_dev_release(struct inode *inode, struct file *file)
+int fuse_dev_release(struct inode *inode, struct file *file)
{
struct fuse_conn *fc = fuse_get_conn(file);
if (fc) {
@@ -1108,6 +1113,7 @@ static int fuse_dev_release(struct inode *inode, struct file *file)

return 0;
}
+EXPORT_SYMBOL_GPL(fuse_dev_release);

static int fuse_dev_fasync(int fd, struct file *file, int on)
{
@@ -1130,6 +1136,7 @@ const struct file_operations fuse_dev_operations = {
.release = fuse_dev_release,
.fasync = fuse_dev_fasync,
};
+EXPORT_SYMBOL_GPL(fuse_dev_operations);

static struct miscdevice fuse_miscdevice = {
.minor = FUSE_MINOR,
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 40895ed..38b0bfb 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -12,6 +12,7 @@
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/sched.h>
+#include <linux/module.h>

static const struct file_operations fuse_direct_io_file_operations;

@@ -261,7 +262,7 @@ static int fuse_wait_on_page_writeback(struct inode *inode, pgoff_t index)
return 0;
}

-static int fuse_flush(struct file *file, fl_owner_t id)
+int fuse_flush(struct file *file, fl_owner_t id)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
@@ -295,6 +296,7 @@ static int fuse_flush(struct file *file, fl_owner_t id)
}
return err;
}
+EXPORT_SYMBOL_GPL(fuse_flush);

/*
* Wait for all pending writepages on the inode to finish.
@@ -363,10 +365,11 @@ int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
return err;
}

-static int fuse_fsync(struct file *file, struct dentry *de, int datasync)
+int fuse_fsync(struct file *file, struct dentry *de, int datasync)
{
return fuse_fsync_common(file, de, datasync, 0);
}
+EXPORT_SYMBOL_GPL(fuse_fsync);

void fuse_read_fill(struct fuse_req *req, struct file *file,
struct inode *inode, loff_t pos, size_t count, int opcode)
@@ -961,8 +964,8 @@ static int fuse_get_user_pages(struct fuse_req *req, const char __user *buf,
return 0;
}

-static ssize_t fuse_direct_io(struct file *file, const char __user *buf,
- size_t count, loff_t *ppos, int write)
+ssize_t fuse_direct_io(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos, int write)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
@@ -1027,6 +1030,7 @@ static ssize_t fuse_direct_io(struct file *file, const char __user *buf,

return res;
}
+EXPORT_SYMBOL_GPL(fuse_direct_io);

static ssize_t fuse_direct_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
@@ -1376,7 +1380,7 @@ static int fuse_setlk(struct file *file, struct file_lock *fl, int flock)
return err;
}

-static int fuse_file_lock(struct file *file, int cmd, struct file_lock *fl)
+int fuse_file_lock(struct file *file, int cmd, struct file_lock *fl)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
@@ -1398,8 +1402,9 @@ static int fuse_file_lock(struct file *file, int cmd, struct file_lock *fl)
}
return err;
}
+EXPORT_SYMBOL_GPL(fuse_file_lock);

-static int fuse_file_flock(struct file *file, int cmd, struct file_lock *fl)
+int fuse_file_flock(struct file *file, int cmd, struct file_lock *fl)
{
struct inode *inode = file->f_path.dentry->d_inode;
struct fuse_conn *fc = get_fuse_conn(inode);
@@ -1415,6 +1420,7 @@ static int fuse_file_flock(struct file *file, int cmd, struct file_lock *fl)

return err;
}
+EXPORT_SYMBOL_GPL(fuse_file_flock);

static sector_t fuse_bmap(struct address_space *mapping, sector_t block)
{
@@ -1452,7 +1458,7 @@ static sector_t fuse_bmap(struct address_space *mapping, sector_t block)
return err ? 0 : outarg.block;
}

-static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
+loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
{
loff_t retval = -EINVAL;
struct inode *inode = file->f_path.dentry->d_inode;
@@ -1512,6 +1518,7 @@ static loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin)
mutex_unlock(&inode->i_mutex);
return retval;
}
+EXPORT_SYMBOL_GPL(fuse_file_llseek);

static int fuse_ioctl_copy_user(struct page **pages, struct iovec *iov,
unsigned int nr_segs, size_t bytes, bool to_user)
@@ -1738,17 +1745,19 @@ static long fuse_file_do_ioctl(struct file *file, unsigned int cmd,
return err ? err : outarg.result;
}

-static long fuse_file_ioctl(struct file *file, unsigned int cmd,
+long fuse_file_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
return fuse_file_do_ioctl(file, cmd, arg, 0);
}
+EXPORT_SYMBOL_GPL(fuse_file_ioctl);

-static long fuse_file_compat_ioctl(struct file *file, unsigned int cmd,
+long fuse_file_compat_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
return fuse_file_do_ioctl(file, cmd, arg, FUSE_IOCTL_COMPAT);
}
+EXPORT_SYMBOL_GPL(fuse_file_compat_ioctl);

/*
* All files which have been polled are linked to RB tree
@@ -1811,7 +1820,7 @@ static void fuse_register_polled_file(struct fuse_conn *fc,
spin_unlock(&fc->lock);
}

-static unsigned fuse_file_poll(struct file *file, poll_table *wait)
+unsigned fuse_file_poll(struct file *file, poll_table *wait)
{
struct inode *inode = file->f_dentry->d_inode;
struct fuse_file *ff = file->private_data;
@@ -1859,6 +1868,7 @@ static unsigned fuse_file_poll(struct file *file, poll_table *wait)
}
return POLLERR;
}
+EXPORT_SYMBOL_GPL(fuse_file_poll);

/*
* This is called from fuse_handle_notify() on FUSE_NOTIFY_POLL and
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index c5c11d7..bc55f6d 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -488,10 +488,14 @@ static inline u64 get_node_id(struct inode *inode)
}

/** Device operations */
+extern const struct super_operations fuse_super_operations;
+
extern const struct file_operations fuse_dev_operations;

extern struct dentry_operations fuse_dentry_operations;

+struct inode *fuse_get_root_inode(struct super_block *sb, unsigned mode);
+
/**
* Get a filled in inode
*/
@@ -503,6 +507,11 @@ int fuse_lookup_name(struct super_block *sb, u64 nodeid, struct qstr *name,
struct fuse_entry_out *outarg, struct inode **inode);

/**
+ * Send INIT command
+ */
+void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req);
+
+/**
* Send FORGET command
*/
void fuse_send_forget(struct fuse_conn *fc, struct fuse_req *req,
@@ -539,6 +548,21 @@ int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
int isdir);

/**
+ * Exported file operations
+ */
+loff_t fuse_file_llseek(struct file *file, loff_t offset, int origin);
+unsigned fuse_file_poll(struct file *file, poll_table *wait);
+ssize_t fuse_direct_io(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos, int write);
+int fuse_flush(struct file *file, fl_owner_t id);
+int fuse_fsync(struct file *file, struct dentry *de, int datasync);
+int fuse_file_lock(struct file *file, int cmd, struct file_lock *fl);
+int fuse_file_flock(struct file *file, int cmd, struct file_lock *fl);
+long fuse_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+long fuse_file_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg);
+
+/**
* Notify poll wakeup
*/
int fuse_notify_poll_wakeup(struct fuse_conn *fc,
@@ -581,6 +605,11 @@ void fuse_truncate(struct address_space *mapping, loff_t offset);
int fuse_dev_init(void);

/**
+ * Release the client device
+ */
+int fuse_dev_release(struct inode *inode, struct file *file);
+
+/**
* Cleanup the client device
*/
void fuse_dev_cleanup(void);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index c8806bb..fae8732 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -536,14 +536,16 @@ void fuse_conn_put(struct fuse_conn *fc)
kfree(fc);
}
}
+EXPORT_SYMBOL_GPL(fuse_conn_put);

struct fuse_conn *fuse_conn_get(struct fuse_conn *fc)
{
atomic_inc(&fc->count);
return fc;
}
+EXPORT_SYMBOL_GPL(fuse_conn_get);

-static struct inode *fuse_get_root_inode(struct super_block *sb, unsigned mode)
+struct inode *fuse_get_root_inode(struct super_block *sb, unsigned mode)
{
struct fuse_attr attr;
memset(&attr, 0, sizeof(attr));
@@ -553,6 +555,7 @@ static struct inode *fuse_get_root_inode(struct super_block *sb, unsigned mode)
attr.nlink = 1;
return fuse_iget(sb, 1, 0, &attr, 0, 0);
}
+EXPORT_SYMBOL_GPL(fuse_get_root_inode);

struct fuse_inode_handle
{
@@ -722,7 +725,7 @@ static const struct export_operations fuse_export_operations = {
.get_parent = fuse_get_parent,
};

-static const struct super_operations fuse_super_operations = {
+const struct super_operations fuse_super_operations = {
.alloc_inode = fuse_alloc_inode,
.destroy_inode = fuse_destroy_inode,
.clear_inode = fuse_clear_inode,
@@ -733,6 +736,7 @@ static const struct super_operations fuse_super_operations = {
.statfs = fuse_statfs,
.show_options = fuse_show_options,
};
+EXPORT_SYMBOL_GPL(fuse_super_operations);

static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
{
@@ -776,7 +780,7 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
wake_up_all(&fc->blocked_waitq);
}

-static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
+void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
{
struct fuse_init_in *arg = &req->misc.init_in;

@@ -799,6 +803,7 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
req->end = process_init_reply;
fuse_request_send_background(fc, req);
}
+EXPORT_SYMBOL_GPL(fuse_send_init);

static int fuse_fill_super(struct super_block *sb, void *data, int silent)
{
--
1.5.4.5


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