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#include <linux/module.h>

#include <linux/fs.h>

#include <linux/fs_stack.h>

/* does _NOT_ require i_mutex to be held.

 *

 * This function cannot be inlined since i_size_{read,write} is rather

 * heavy-weight on 32-bit systems

 */

void fsstack_copy_inode_size(struct inode *dst, const struct inode *src)

{

        i_size_write(dst, i_size_read((struct inode *)src));

        dst->i_blocks = src->i_blocks;

}

EXPORT_SYMBOL_GPL(fsstack_copy_inode_size);

/* copy all attributes; get_nlinks is optional way to override the i_nlink

 * copying

 */

void fsstack_copy_attr_all(struct inode *dest, const struct inode *src,

                                int (*get_nlinks)(struct inode *))

{

        dest->i_mode = src->i_mode;

        dest->i_uid = src->i_uid;

        dest->i_gid = src->i_gid;

        dest->i_rdev = src->i_rdev;

        dest->i_atime = src->i_atime;

        dest->i_mtime = src->i_mtime;

        dest->i_ctime = src->i_ctime;

        dest->i_blkbits = src->i_blkbits;

        dest->i_flags = src->i_flags;

        /*

         * Update the nlinks AFTER updating the above fields, because the

         * get_links callback may depend on them.

         */

        if (!get_nlinks)

                dest->i_nlink = src->i_nlink;

        else

                dest->i_nlink = (*get_nlinks)(dest);

}

EXPORT_SYMBOL_GPL(fsstack_copy_attr_all);