diff options
| author | Alexey Dobriyan <adobriyan@gmail.com> | 2022-01-19 18:08:53 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-20 08:52:53 +0200 |
| commit | 70ac69928e9717a313a4c72647ebe80663e397a3 (patch) | |
| tree | 538a2bfeb2b815a3c903ac238ac3c279aa11761a /Documentation/RCU | |
| parent | 26d98e9f78da8e49413b1cb6bcd0d63ac03b8c85 (diff) | |
kstrtox: uninline everything
I've made a mistake of looking into lib/kstrtox.o code generation.
The only function remotely performance critical is _parse_integer()
(via /proc/*/map_files/*), everything else is not.
Uninline everything, shrink lib/kstrtox.o by ~20 % !
Space savings on x86_64:
add/remove: 0/0 grow/shrink: 0/23 up/down: 0/-1269 (-1269 !!!)
Function old new delta
kstrtoull 16 13 -3
kstrtouint 59 48 -11
kstrtou8 60 49 -11
kstrtou16 61 50 -11
_kstrtoul 46 35 -11
kstrtoull_from_user 95 83 -12
kstrtoul_from_user 95 83 -12
kstrtoll 93 80 -13
kstrtouint_from_user 124 83 -41
kstrtou8_from_user 125 83 -42
kstrtou16_from_user 126 83 -43
kstrtos8 101 50 -51
kstrtos16 102 51 -51
kstrtoint 100 49 -51
_kstrtol 93 35 -58
kstrtobool_from_user 156 75 -81
kstrtoll_from_user 165 83 -82
kstrtol_from_user 165 83 -82
kstrtoint_from_user 172 83 -89
kstrtos8_from_user 173 83 -90
kstrtos16_from_user 174 83 -91
_parse_integer 136 10 -126
_kstrtoull 308 101 -207
Total: Before=3421236, After=3419967, chg -0.04%
Link: https://lkml.kernel.org/r/YZDsFDhHst4m2Pnt@localhost.localdomain
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/RCU')
0 files changed, 0 insertions, 0 deletions