* [lkp] [+1926 bytes kernel size regression] [i386-tinyconfig] [affcd6e113] vfs: introduce new file range exchange ioctl
@ 2022-12-31 2:54 kernel test robot
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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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