204 SYSCALL_DEFINE(sync_file_range)(int fd, loff_t offset, loff_t nbytes,  in SYSCALL_DEFINE()
217 	endbyte = offset + nbytes;  in SYSCALL_DEFINE()
219 	if ((s64)offset < 0)  in SYSCALL_DEFINE()
223 	if (endbyte < offset)  in SYSCALL_DEFINE()
227 		if (offset >= (0x100000000ULL << PAGE_CACHE_SHIFT)) {  in SYSCALL_DEFINE()
259 	ret = do_sync_mapping_range(file->f_mapping, offset, endbyte, flags);  in SYSCALL_DEFINE()
266 asmlinkage long SyS_sync_file_range(long fd, loff_t offset, loff_t nbytes,  in SyS_sync_file_range()  argument
269 	return SYSC_sync_file_range((int) fd, offset, nbytes,  in SyS_sync_file_range()
278 				 loff_t offset, loff_t nbytes)  in SYSCALL_DEFINE()
280 	return sys_sync_file_range(fd, offset, nbytes, flags);  in SYSCALL_DEFINE()
284 				     loff_t offset, loff_t nbytes)  in SyS_sync_file_range2()  argument
287 				     offset, nbytes);  in SyS_sync_file_range2()
295 int do_sync_mapping_range(struct address_space *mapping, loff_t offset,  in do_sync_mapping_range()  argument
308 					offset >> PAGE_CACHE_SHIFT,  in do_sync_mapping_range()
315 		ret = __filemap_fdatawrite_range(mapping, offset, endbyte,  in do_sync_mapping_range()
323 					offset >> PAGE_CACHE_SHIFT,  in do_sync_mapping_range()