1973 	unsigned long offset;  in shmem_get_unmapped_area()  local
2026 	offset = (pgoff << PAGE_SHIFT) & (HPAGE_PMD_SIZE-1);  in shmem_get_unmapped_area()
2027 	if (offset && offset + len < 2 * HPAGE_PMD_SIZE)  in shmem_get_unmapped_area()
2029 	if ((addr & (HPAGE_PMD_SIZE-1)) == offset)  in shmem_get_unmapped_area()
2045 	inflated_addr += offset - inflated_offset;  in shmem_get_unmapped_area()
2046 	if (inflated_offset > offset)  in shmem_get_unmapped_area()
2248 	unsigned long offset;  in shmem_file_read_iter()  local
2263 	offset = *ppos & ~PAGE_MASK;  in shmem_file_read_iter()
2276 			if (nr <= offset)  in shmem_file_read_iter()
2301 			if (nr <= offset) {  in shmem_file_read_iter()
2307 		nr -= offset;  in shmem_file_read_iter()
2320 			if (!offset)  in shmem_file_read_iter()
2331 		ret = copy_page_to_iter(page, offset, nr, to);  in shmem_file_read_iter()
2333 		offset += ret;  in shmem_file_read_iter()
2334 		index += offset >> PAGE_SHIFT;  in shmem_file_read_iter()
2335 		offset &= ~PAGE_MASK;  in shmem_file_read_iter()
2347 	*ppos = ((loff_t) index << PAGE_SHIFT) + offset;  in shmem_file_read_iter()
2402 static loff_t shmem_file_llseek(struct file *file, loff_t offset, int whence)  in shmem_file_llseek()  argument
2410 		return generic_file_llseek_size(file, offset, whence,  in shmem_file_llseek()
2415 	if (offset < 0)  in shmem_file_llseek()
2416 		offset = -EINVAL;  in shmem_file_llseek()
2417 	else if (offset >= inode->i_size)  in shmem_file_llseek()
2418 		offset = -ENXIO;  in shmem_file_llseek()
2420 		start = offset >> PAGE_SHIFT;  in shmem_file_llseek()
2424 		if (new_offset > offset) {  in shmem_file_llseek()
2426 				offset = new_offset;  in shmem_file_llseek()
2428 				offset = -ENXIO;  in shmem_file_llseek()
2430 				offset = inode->i_size;  in shmem_file_llseek()
2434 	if (offset >= 0)  in shmem_file_llseek()
2435 		offset = vfs_setpos(file, offset, MAX_LFS_FILESIZE);  in shmem_file_llseek()
2437 	return offset;  in shmem_file_llseek()
2661 static long shmem_fallocate(struct file *file, int mode, loff_t offset,  in shmem_fallocate()  argument
2678 		loff_t unmap_start = round_up(offset, PAGE_SIZE);  in shmem_fallocate()
2679 		loff_t unmap_end = round_down(offset + len, PAGE_SIZE) - 1;  in shmem_fallocate()
2698 		shmem_truncate_range(inode, offset, offset + len - 1);  in shmem_fallocate()
2711 	error = inode_newsize_ok(inode, offset + len);  in shmem_fallocate()
2715 	if ((info->seals & F_SEAL_GROW) && offset + len > inode->i_size) {  in shmem_fallocate()
2720 	start = offset >> PAGE_SHIFT;  in shmem_fallocate()
2721 	end = (offset + len + PAGE_SIZE - 1) >> PAGE_SHIFT;  in shmem_fallocate()
2781 	if (!(mode & FALLOC_FL_KEEP_SIZE) && offset + len > inode->i_size)  in shmem_fallocate()
2782 		i_size_write(inode, offset + len);  in shmem_fallocate()