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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);
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