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| author | Joe Perches <joe@perches.com> | 2019-12-04 16:52:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-12-04 19:44:13 -0800 |
| commit | cd28b119047b9928ddae914dd747f032ab929cc6 (patch) | |
| tree | 370538dee17f0b9deec26ccd13a70a01c91b50bc /fs/eventpoll.c | |
| parent | d439e6a5d78b93a85c0f93ea559548fc109ccc1a (diff) | |
| download | lwn-cd28b119047b9928ddae914dd747f032ab929cc6.tar.gz lwn-cd28b119047b9928ddae914dd747f032ab929cc6.zip | |
checkpatch: reduce is_maintained_obsolete lookup runtime
The is_maintained_obsolete function can be called twice using the same
filename. This function spawns a process using get_maintainer.pl.
Store the status of each filename when spawned and use the stored result
to eliminate the spawning of unnecessary duplicate child processes.
Example:
old:
$ time ./scripts/checkpatch.pl hp100-Move-to-staging.patch > /dev/null
real 0m1.767s
user 0m1.634s
sys 0m0.141s
new:
$ time ./scripts/checkpatch.pl hp100-Move-to-staging.patch > /dev/null
real 0m1.184s
user 0m1.085s
sys 0m0.103s
Link: http://lkml.kernel.org/r/b982566a2b9b4825badce36fdfc3032bd0005151.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/eventpoll.c')
0 files changed, 0 insertions, 0 deletions