[lkp] [+77 bytes kernel size regression] [i386-tinyconfig] [5a7c77eebb] fsnotify: prepare for directory entry pre-modify permission events

* [lkp] [+77 bytes kernel size regression] [i386-tinyconfig] [5a7c77eebb] fsnotify: prepare for 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: lkp, oe-kbuild-all

FYI, we noticed a +77 bytes kernel size regression due to commit:

commit: 5a7c77eebbac19d62a5f25c78e66c487cd7f8366 (fsnotify: prepare for 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`):

79db767d: fanotify: introduce FAN_PRE_ATTRIB permission event
5a7c77ee: fsnotify: prepare for directory entry pre-modify permission events

+-------------------------+----------+----------+-------+
|         symbol          | 79db767d | 5a7c77ee | delta |
+-------------------------+----------+----------+-------+
| nm.T.filename_lookupat  | 0        | 183      | 183   |
| nm.T.user_path_lookupat | 0        | 69       | 69    |
| bzImage                 | 492256   | 492320   | 64    |
| nm.t.filename_parentat  | 165      | 174      | 9     |
| nm.t.do_readlinkat      | 191      | 196      | 5     |
| nm.T.do_renameat2       | 814      | 817      | 3     |
| nm.T.do_rmdir           | 257      | 251      | -6    |
| nm.T.do_unlinkat        | 366      | 360      | -6    |
| nm.T.kern_path_locked   | 139      | 132      | -7    |
| nm.t.filename_create    | 222      | 215      | -7    |
| nm.T.user_path_at_empty | 56       | 0        | -56   |
| nm.T.filename_lookup    | 129      | 19       | -110  |
+-------------------------+----------+----------+-------+

Thanks

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