Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
docs: kdoc: micro-optimize KernRe
Rework _add_regex() to avoid doing the lookup twice for the (hopefully
common) cache-hit case.
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Tested-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20250703184403.274408-3-corbet@lwn.net
+2
-5
+2
-5
scripts/lib/kdoc/kdoc_re.py
+2
-5
scripts/lib/kdoc/kdoc_re.py
···
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"""
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Adds a new regex or re-use it from the cache.
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"""
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-
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if string in re_cache:
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self.regex = re_cache[string]
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-
else:
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+
self.regex = re_cache.get(string, None)
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if not self.regex:
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self.regex = re.compile(string, flags=flags)
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-
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if self.cache:
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re_cache[string] = self.regex
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