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Ext2FS: Avoid a String allocation in lookup()

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By using find() with a custom finder, we can avoid creating a temporary
key value that's only used for the hash lookup.
This commit is contained in:
Andreas Kling 2019-08-24 22:39:12 +02:00
parent d38bd3935b
commit ac7a559d96
1 changed files with 1 additions and 1 deletions
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2
Kernel/FileSystem/Ext2FileSystem.cpp
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@ -1263,7 +1263,7 @@ InodeIdentifier Ext2FSInode::lookup(StringView name)
ASSERT(is_directory()); ASSERT(is_directory());
populate_lookup_cache(); populate_lookup_cache();
LOCKER(m_lock); LOCKER(m_lock);
auto it = m_lookup_cache.find(name); auto it = m_lookup_cache.find(name.hash(), [&](auto& entry) { return entry.key == name; });
if (it != m_lookup_cache.end()) if (it != m_lookup_cache.end())
return { fsid(), (*it).value }; return { fsid(), (*it).value };
return {}; return {};