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Fix dumb bug in HashTable::clear().

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We forgot to clear the m_buckets pointer. This meant that multiple calls to
clear() would cause trouble.
This commit is contained in:
Andreas Kling 2019-01-30 19:32:54 +01:00
parent 2b4374d08e
commit 3a4207b863
Notes: sideshowbarker 2024-07-19 15:55:10 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/3a4207b8639
2 changed files with 4 additions and 4 deletions
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5
AK/HashTable.h
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@ -301,7 +301,10 @@ void HashTable<T, TraitsForT>::rehash(unsigned new_capacity)
template<typename T, typename TraitsForT>
void HashTable<T, TraitsForT>::clear()
{
delete [] m_buckets;
if (m_buckets) {
delete [] m_buckets;
m_buckets = nullptr;
}
m_capacity = 0;
m_size = 0;
}

3
Kernel/Ext2FileSystem.cpp
View file

@ -373,9 +373,6 @@ void Ext2FSInode::flush_metadata()
// Unless we're about to go away permanently, invalidate the lookup cache.
if (m_raw_inode.i_links_count != 0) {
LOCKER(m_lock);
// FIXME: Something isn't working right when we hit this code path.
// I've seen crashes inside HashMap::clear() all the way down in DoublyLinkedList::clear().
// My guess would be a HashTable bug.
// FIXME: This invalidation is way too hardcore. It's sad to throw away the whole cache.
m_lookup_cache.clear();
}