* [lkp] [+467 bytes kernel size regression] [i386-tinyconfig] [d68dec755e] fanotify: introduce directory entry pre-modify permission events
@ 2022-12-07 22:22 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-12-07 22:22 UTC (permalink / raw)
To: Amir Goldstein; +Cc: Josh Triplett, lkp, oe-kbuild-all
FYI, we noticed a +467 bytes kernel size regression due to commit:
commit: d68dec755ef85f527fd1623357aac4c0ac6cb378 (fanotify: introduce directory entry pre-modify permission events)
https://github.com/amir73il/linux fan_pre_modify
Details as below (size data is obtained by `nm --size-sort vmlinux`):
5a7c77ee: fsnotify: prepare for directory entry pre-modify permission events
d68dec75: fanotify: introduce directory entry pre-modify permission events
+-----------------------------+----------+----------+-------+
| symbol | 5a7c77ee | d68dec75 | delta |
+-----------------------------+----------+----------+-------+
| nm.t.filename_create_srcu | 0 | 235 | 235 |
| bzImage | 492320 | 492512 | 192 |
| nm.T.mnt_want_write_parents | 0 | 119 | 119 |
| nm.T.mnt_want_write_parent | 0 | 110 | 110 |
| nm.t.open_last_lookups | 396 | 474 | 78 |
| nm.t.done_path_create_srcu | 0 | 31 | 31 |
| nm.T.do_rmdir | 251 | 265 | 14 |
| nm.T.do_symlinkat | 139 | 149 | 10 |
| nm.T.do_linkat | 279 | 289 | 10 |
| nm.t.do_mknodat | 362 | 372 | 10 |
| nm.T.do_unlinkat | 360 | 369 | 9 |
| nm.T.do_mkdirat | 148 | 153 | 5 |
| nm.T.do_renameat2 | 817 | 818 | 1 |
| nm.t.filename_create | 215 | 50 | -165 |
+-----------------------------+----------+----------+-------+
Thanks
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