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Commit 12f38872 authored by Al Viro's avatar Al Viro
Browse files

libfs: get exports to definitions of objects being exported... 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent cbe9c085

fs/libfs.c

+34 −35
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ int simple_getattr(struct vfsmount *mnt, struct dentry *dentry, 
	stat->blocks = inode->i_mapping->nrpages << (PAGE_CACHE_SHIFT - 9);

	return 0;

}

EXPORT_SYMBOL(simple_getattr);



int simple_statfs(struct dentry *dentry, struct kstatfs *buf)

{
@@ -39,6 +40,7 @@ int simple_statfs(struct dentry *dentry, struct kstatfs *buf) 
	buf->f_namelen = NAME_MAX;

	return 0;

}

EXPORT_SYMBOL(simple_statfs);



/*

 * Retaining negative dentries for an in-memory filesystem just wastes
@@ -66,6 +68,7 @@ struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry, unsigned 
	d_add(dentry, NULL);

	return NULL;

}

EXPORT_SYMBOL(simple_lookup);



int dcache_dir_open(struct inode *inode, struct file *file)

{
@@ -75,12 +78,14 @@ int dcache_dir_open(struct inode *inode, struct file *file) 


	return file->private_data ? 0 : -ENOMEM;

}

EXPORT_SYMBOL(dcache_dir_open);



int dcache_dir_close(struct inode *inode, struct file *file)

{

	dput(file->private_data);

	return 0;

}

EXPORT_SYMBOL(dcache_dir_close);



loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)

{
@@ -123,6 +128,7 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence) 
	mutex_unlock(&dentry->d_inode->i_mutex);

	return offset;

}

EXPORT_SYMBOL(dcache_dir_lseek);



/* Relationship between i_mode and the DT_xxx types */

static inline unsigned char dt_type(struct inode *inode)
@@ -172,11 +178,13 @@ int dcache_readdir(struct file *file, struct dir_context *ctx) 
	spin_unlock(&dentry->d_lock);

	return 0;

}

EXPORT_SYMBOL(dcache_readdir);



ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t *ppos)

{

	return -EISDIR;

}

EXPORT_SYMBOL(generic_read_dir);



const struct file_operations simple_dir_operations = {

	.open		= dcache_dir_open,
@@ -186,10 +194,12 @@ const struct file_operations simple_dir_operations = { 
	.iterate	= dcache_readdir,

	.fsync		= noop_fsync,

};

EXPORT_SYMBOL(simple_dir_operations);



const struct inode_operations simple_dir_inode_operations = {

	.lookup		= simple_lookup,

};

EXPORT_SYMBOL(simple_dir_inode_operations);



static const struct super_operations simple_super_operations = {

	.statfs		= simple_statfs,
@@ -244,6 +254,7 @@ struct dentry *mount_pseudo(struct file_system_type *fs_type, char *name, 
	deactivate_locked_super(s);

	return ERR_PTR(-ENOMEM);

}

EXPORT_SYMBOL(mount_pseudo);



int simple_open(struct inode *inode, struct file *file)

{
@@ -251,6 +262,7 @@ int simple_open(struct inode *inode, struct file *file) 
		file->private_data = inode->i_private;

	return 0;

}

EXPORT_SYMBOL(simple_open);



int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)

{
@@ -263,6 +275,7 @@ int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *den 
	d_instantiate(dentry, inode);

	return 0;

}

EXPORT_SYMBOL(simple_link);



int simple_empty(struct dentry *dentry)

{
@@ -283,6 +296,7 @@ int simple_empty(struct dentry *dentry) 
	spin_unlock(&dentry->d_lock);

	return ret;

}

EXPORT_SYMBOL(simple_empty);



int simple_unlink(struct inode *dir, struct dentry *dentry)

{
@@ -293,6 +307,7 @@ int simple_unlink(struct inode *dir, struct dentry *dentry) 
	dput(dentry);

	return 0;

}

EXPORT_SYMBOL(simple_unlink);



int simple_rmdir(struct inode *dir, struct dentry *dentry)

{
@@ -304,6 +319,7 @@ int simple_rmdir(struct inode *dir, struct dentry *dentry) 
	drop_nlink(dir);

	return 0;

}

EXPORT_SYMBOL(simple_rmdir);



int simple_rename(struct inode *old_dir, struct dentry *old_dentry,

		struct inode *new_dir, struct dentry *new_dentry)
@@ -330,6 +346,7 @@ int simple_rename(struct inode *old_dir, struct dentry *old_dentry, 


	return 0;

}

EXPORT_SYMBOL(simple_rename);



/**

 * simple_setattr - setattr for simple filesystem
@@ -370,6 +387,7 @@ int simple_readpage(struct file *file, struct page *page) 
	unlock_page(page);

	return 0;

}

EXPORT_SYMBOL(simple_readpage);



int simple_write_begin(struct file *file, struct address_space *mapping,

			loff_t pos, unsigned len, unsigned flags,
@@ -393,6 +411,7 @@ int simple_write_begin(struct file *file, struct address_space *mapping, 
	}

	return 0;

}

EXPORT_SYMBOL(simple_write_begin);



/**

 * simple_write_end - .write_end helper for non-block-device FSes
@@ -444,6 +463,7 @@ int simple_write_end(struct file *file, struct address_space *mapping, 


	return copied;

}

EXPORT_SYMBOL(simple_write_end);



/*

 * the inodes created here are not hashed. If you use iunique to generate
@@ -512,6 +532,7 @@ int simple_fill_super(struct super_block *s, unsigned long magic, 
	dput(root);

	return -ENOMEM;

}

EXPORT_SYMBOL(simple_fill_super);



static DEFINE_SPINLOCK(pin_fs_lock);
@@ -534,6 +555,7 @@ int simple_pin_fs(struct file_system_type *type, struct vfsmount **mount, int *c 
	mntput(mnt);

	return 0;

}

EXPORT_SYMBOL(simple_pin_fs);



void simple_release_fs(struct vfsmount **mount, int *count)

{
@@ -545,6 +567,7 @@ void simple_release_fs(struct vfsmount **mount, int *count) 
	spin_unlock(&pin_fs_lock);

	mntput(mnt);

}

EXPORT_SYMBOL(simple_release_fs);



/**

 * simple_read_from_buffer - copy data from the buffer to user space
@@ -579,6 +602,7 @@ ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos, 
	*ppos = pos + count;

	return count;

}

EXPORT_SYMBOL(simple_read_from_buffer);



/**

 * simple_write_to_buffer - copy data from user space to the buffer
@@ -613,6 +637,7 @@ ssize_t simple_write_to_buffer(void *to, size_t available, loff_t *ppos, 
	*ppos = pos + count;

	return count;

}

EXPORT_SYMBOL(simple_write_to_buffer);



/**

 * memory_read_from_buffer - copy data from the buffer
@@ -644,6 +669,7 @@ ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos, 


	return count;

}

EXPORT_SYMBOL(memory_read_from_buffer);



/*

 * Transaction based IO.
@@ -665,6 +691,7 @@ void simple_transaction_set(struct file *file, size_t n) 
	smp_mb();

	ar->size = n;

}

EXPORT_SYMBOL(simple_transaction_set);



char *simple_transaction_get(struct file *file, const char __user *buf, size_t size)

{
@@ -696,6 +723,7 @@ char *simple_transaction_get(struct file *file, const char __user *buf, size_t s 


	return ar->data;

}

EXPORT_SYMBOL(simple_transaction_get);



ssize_t simple_transaction_read(struct file *file, char __user *buf, size_t size, loff_t *pos)

{
@@ -705,12 +733,14 @@ ssize_t simple_transaction_read(struct file *file, char __user *buf, size_t size 
		return 0;

	return simple_read_from_buffer(buf, size, pos, ar->data, ar->size);

}

EXPORT_SYMBOL(simple_transaction_read);



int simple_transaction_release(struct inode *inode, struct file *file)

{

	free_page((unsigned long)file->private_data);

	return 0;

}

EXPORT_SYMBOL(simple_transaction_release);



/* Simple attribute files */
@@ -746,12 +776,14 @@ int simple_attr_open(struct inode *inode, struct file *file, 


	return nonseekable_open(inode, file);

}

EXPORT_SYMBOL_GPL(simple_attr_open);



int simple_attr_release(struct inode *inode, struct file *file)

{

	kfree(file->private_data);

	return 0;

}

EXPORT_SYMBOL_GPL(simple_attr_release);	/* GPL-only?  This?  Really? */



/* read from the buffer that is filled with the get function */

ssize_t simple_attr_read(struct file *file, char __user *buf,
@@ -787,6 +819,7 @@ ssize_t simple_attr_read(struct file *file, char __user *buf, 
	mutex_unlock(&attr->mutex);

	return ret;

}

EXPORT_SYMBOL_GPL(simple_attr_read);



/* interpret the buffer as a number to call the set function with */

ssize_t simple_attr_write(struct file *file, const char __user *buf,
@@ -819,6 +852,7 @@ ssize_t simple_attr_write(struct file *file, const char __user *buf, 
	mutex_unlock(&attr->mutex);

	return ret;

}

EXPORT_SYMBOL_GPL(simple_attr_write);



/**

 * generic_fh_to_dentry - generic helper for the fh_to_dentry export operation
@@ -957,39 +991,4 @@ int noop_fsync(struct file *file, loff_t start, loff_t end, int datasync) 
{

	return 0;

}



EXPORT_SYMBOL(dcache_dir_close);

EXPORT_SYMBOL(dcache_dir_lseek);

EXPORT_SYMBOL(dcache_dir_open);

EXPORT_SYMBOL(dcache_readdir);

EXPORT_SYMBOL(generic_read_dir);

EXPORT_SYMBOL(mount_pseudo);

EXPORT_SYMBOL(simple_write_begin);

EXPORT_SYMBOL(simple_write_end);

EXPORT_SYMBOL(simple_dir_inode_operations);

EXPORT_SYMBOL(simple_dir_operations);

EXPORT_SYMBOL(simple_empty);

EXPORT_SYMBOL(simple_fill_super);

EXPORT_SYMBOL(simple_getattr);

EXPORT_SYMBOL(simple_open);

EXPORT_SYMBOL(simple_link);

EXPORT_SYMBOL(simple_lookup);

EXPORT_SYMBOL(simple_pin_fs);

EXPORT_SYMBOL(simple_readpage);

EXPORT_SYMBOL(simple_release_fs);

EXPORT_SYMBOL(simple_rename);

EXPORT_SYMBOL(simple_rmdir);

EXPORT_SYMBOL(simple_statfs);

EXPORT_SYMBOL(noop_fsync);
 
EXPORT_SYMBOL(simple_unlink);

EXPORT_SYMBOL(simple_read_from_buffer);

EXPORT_SYMBOL(simple_write_to_buffer);

EXPORT_SYMBOL(memory_read_from_buffer);

EXPORT_SYMBOL(simple_transaction_set);

EXPORT_SYMBOL(simple_transaction_get);

EXPORT_SYMBOL(simple_transaction_read);

EXPORT_SYMBOL(simple_transaction_release);

EXPORT_SYMBOL_GPL(simple_attr_open);

EXPORT_SYMBOL_GPL(simple_attr_release);

EXPORT_SYMBOL_GPL(simple_attr_read);

EXPORT_SYMBOL_GPL(simple_attr_write);