[lkp] [+534 bytes kernel size regression] [i386-tinyconfig] [b45ed49f9d] cachestat: implement cachestat syscall

[kernel test robot <lkp@intel.com>]

FYI, we noticed a +534 bytes kernel size regression due to commit:

commit: b45ed49f9d4f655a5e95c14f7019b455929f419d (cachestat: implement cachestat syscall)
url: https://github.com/intel-lab-lkp/linux/commits/Nhat-Pham/cachestat-a-new-syscall-for-page-cache-state-of-files/20221206-015308
base: https://git.kernel.org/cgit/linux/kernel/git/shuah/linux-kselftest.git next
patch link: https://lore.kernel.org/all/20221205175140.1543229-4-nphamcs@gmail.com/
patch subject: [PATCH v2 3/4] cachestat: implement cachestat syscall


Details as below (size data is obtained by `nm --size-sort vmlinux`):

6f4450be: workingset: refactor LRU refault to expose refault recency check
b45ed49f: cachestat: implement cachestat syscall

+---------------------------+----------+----------+-------+
|          symbol           | 6f4450be | b45ed49f | delta |
+---------------------------+----------+----------+-------+
| nm.t.__do_sys_cachestat   | 0        | 508      | 508   |
| bzImage                   | 491488   | 491712   | 224   |
| nm.T.__ia32_sys_cachestat | 0        | 22       | 22    |
| nm.D.sys_call_table       | 1804     | 1808     | 4     |
+---------------------------+----------+----------+-------+



Thanks