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Ext2FS: Avoid a String allocation in lookup()
By using find() with a custom finder, we can avoid creating a temporary key value that's only used for the hash lookup.
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Notes:
sideshowbarker
2024-07-19 12:32:55 +09:00
Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/ac7a559d96e
@ -1263,7 +1263,7 @@ InodeIdentifier Ext2FSInode::lookup(StringView name)
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ASSERT(is_directory());
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populate_lookup_cache();
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LOCKER(m_lock);
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auto it = m_lookup_cache.find(name);
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auto it = m_lookup_cache.find(name.hash(), [&](auto& entry) { return entry.key == name; });
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if (it != m_lookup_cache.end())
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return { fsid(), (*it).value };
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return {};
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