1 #include <linux/module.h> 2 #include <linux/fs.h> 3 #include <linux/fs_stack.h> 4 5 /* does _NOT_ require i_mutex to be held. 6 * 7 * This function cannot be inlined since i_size_{read,write} is rather 8 * heavy-weight on 32-bit systems 9 */ 10 void fsstack_copy_inode_size(struct inode *dst, const struct inode *src) 11 { 12 i_size_write(dst, i_size_read((struct inode *)src)); 13 dst->i_blocks = src->i_blocks; 14 } 15 EXPORT_SYMBOL_GPL(fsstack_copy_inode_size); 16 17 /* copy all attributes; get_nlinks is optional way to override the i_nlink 18 * copying 19 */ 20 void fsstack_copy_attr_all(struct inode *dest, const struct inode *src, 21 int (*get_nlinks)(struct inode *)) 22 { 23 dest->i_mode = src->i_mode; 24 dest->i_uid = src->i_uid; 25 dest->i_gid = src->i_gid; 26 dest->i_rdev = src->i_rdev; 27 dest->i_atime = src->i_atime; 28 dest->i_mtime = src->i_mtime; 29 dest->i_ctime = src->i_ctime; 30 dest->i_blkbits = src->i_blkbits; 31 dest->i_flags = src->i_flags; 32 33 /* 34 * Update the nlinks AFTER updating the above fields, because the 35 * get_links callback may depend on them. 36 */ 37 if (!get_nlinks) 38 dest->i_nlink = src->i_nlink; 39 else 40 dest->i_nlink = (*get_nlinks)(dest); 41 } 42 EXPORT_SYMBOL_GPL(fsstack_copy_attr_all); 43