coccinelle: double_lock: improve performance when no double lock exists

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The 'balanced' rule collects the locks that are taken and released
under the same condition, to prevent them from being reported as a
double lock. It runs on every file that contains a lock call.

To avoid this, collect the double-lock candidates first, so that
'balanced' runs only when one exists. The report then excludes what
'balanced' found.

Every double lock that can be reported is also a candidate, so the
same reports are made as before and the output does not change. A
report-mode run over every .c file in the tree produces identical
output.

Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>

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Sang-Heon Jeon 2026-07-25 20:32:40 +09:00 • committed by Julia Lawall

parent b6b019a1d9

commit bf2fe566a8

1 changed files with 14 additions and 1 deletions

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scripts/coccinelle/locks/double_lock.cocci

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