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* [lkp] [+1926 bytes kernel size regression] [i386-tinyconfig] [affcd6e113] vfs: introduce new file range exchange ioctl
@ 2022-12-31  2:54 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-12-31  2:54 UTC (permalink / raw)
  To: Darrick J. Wong; +Cc: Josh Triplett, lkp, oe-kbuild-all


FYI, we noticed a +1926 bytes kernel size regression due to commit:

commit: affcd6e1138c6be71b1ba5d2c05df93a4aa4c68f (vfs: introduce new file range exchange ioctl)
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git xfile-page-caching


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

c284a1b4: xfs: move symlink target write function to libxfs
affcd6e1: vfs: introduce new file range exchange ioctl

+------------------------------------------+----------+----------+-------+
|                  symbol                  | c284a1b4 | affcd6e1 | delta |
+------------------------------------------+----------+----------+-------+
| bzImage                                  | 495808   | 497024   | 1216  |
| nm.t.generic_xchg_file_range_checks      | 0        | 1056     | 1056  |
| nm.T.do_xchg_file_range                  | 0        | 283      | 283   |
| nm.T.generic_xchg_file_range_prep        | 0        | 210      | 210   |
| nm.T.generic_xchg_file_range_check_fresh | 0        | 107      | 107   |
| nm.t.ioctl_file_xchg_range               | 0        | 96       | 96    |
| nm.t.xchg_range_verify_area              | 0        | 81       | 81    |
| nm.T.vfs_xchg_file_range                 | 0        | 46       | 46    |
| nm.t.do_vfs_ioctl                        | 1516     | 1554     | 38    |
| nm.T.generic_xchg_file_range_finish      | 0        | 35       | 35    |
| nm.T.do_clone_file_range                 | 271      | 276      | 5     |
| nm.d.bad_file_ops                        | 136      | 140      | 4     |
| nm.D.def_blk_fops                        | 136      | 140      | 4     |
| nm.D.def_chr_fops                        | 136      | 140      | 4     |
| nm.d.empty_dir_operations                | 136      | 140      | 4     |
| nm.d.empty_fops                          | 136      | 140      | 4     |
| nm.D.fscontext_fops                      | 136      | 140      | 4     |
| nm.d.full_fops                           | 136      | 140      | 4     |
| nm.D.generic_ro_fops                     | 136      | 140      | 4     |
| nm.d.memory_fops                         | 136      | 140      | 4     |
| nm.d.misc_fops                           | 136      | 140      | 4     |
| nm.d.no_open_fops                        | 136      | 140      | 4     |
| nm.d.ns_file_operations                  | 136      | 140      | 4     |
| nm.d.null_fops                           | 136      | 140      | 4     |
| nm.d.perf_fops                           | 136      | 140      | 4     |
| nm.D.pidfd_fops                          | 136      | 140      | 4     |
| nm.D.pipefifo_fops                       | 136      | 140      | 4     |
| nm.D.ramfs_file_operations               | 136      | 140      | 4     |
| nm.D.random_fops                         | 136      | 140      | 4     |
| nm.D.simple_dir_operations               | 136      | 140      | 4     |
| nm.D.urandom_fops                        | 136      | 140      | 4     |
| nm.d.zero_fops                           | 136      | 140      | 4     |
| nm.T.vfs_fadvise                         | 48       | 51       | 3     |
| nm.t.ioctl_file_clone                    | 142      | 136      | -6    |
| nm.T.__ia32_sys_ioctl                    | 101      | 87       | -14   |
| nm.T.vfs_clone_file_range                | 231      | 133      | -98   |
+------------------------------------------+----------+----------+-------+



Thanks


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