[lkp] [+906 bytes kernel size regression] [i386-tinyconfig] [093a3d80e1] iov_iter: Add a function to extract a page list from an iterator

[lkp] [+906 bytes kernel size regression] [i386-tinyconfig] [093a3d80e1] iov_iter: Add a function to extract a page list from an iterator

[kernel test robot]

FYI, we noticed a +906 bytes kernel size regression due to commit:

commit: 093a3d80e19db28bb7a241b60d15cf744ecd5aaf (iov_iter: Add a function to extract a page list from an iterator)
https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/iov-extract


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

39022e3d: iov_iter: Define flags to qualify page extraction.
093a3d80: iov_iter: Add a function to extract a page list from an iterator

+---------------------------------+----------+----------+-------+
|             symbol              | 39022e3d | 093a3d80 | delta |
+---------------------------------+----------+----------+-------+
| nm.T.iov_iter_extract_pages     | 0        | 892      | 892   |
| bzImage                         | 495104   | 495648   | 544   |
| nm.t.iter_xarray_get_pages      | 0        | 328      | 328   |
| nm.t.first_iovec_segment        | 0        | 71       | 71    |
| nm.t.__iov_iter_get_pages_alloc | 543      | 445      | -98   |
| nm.t.iter_xarray_populate_pages | 287      | 0        | -287  |
+---------------------------------+----------+----------+-------+



Thanks