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Kernel/FileSystem: Mark ext2 inode lookup cache non-const

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For the lookup cache, no method being declared const tried to modify it,
so it was easy to drop the mutable declaration on the HashMap member.
This commit is contained in:
Liav A 2022-08-06 18:07:03 +03:00 • committed by Idan Horowitz
parent b04de3090f
commit 843bd43c5b
2 changed files with 5 additions and 5 deletions
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6
Kernel/FileSystem/Ext2FileSystem.cpp
View file

@ -1499,9 +1499,9 @@ ErrorOr<NonnullLockRefPtr<Inode>> Ext2FS::create_inode(Ext2FSInode& parent_inode
return new_inode;
}
ErrorOr<void> Ext2FSInode::populate_lookup_cache() const
ErrorOr<void> Ext2FSInode::populate_lookup_cache()
{
MutexLocker locker(m_inode_lock);
VERIFY(m_inode_lock.is_exclusively_locked_by_current_thread());
if (!m_lookup_cache.is_empty())
return {};
HashMap<NonnullOwnPtr<KString>, InodeIndex> children;
@ -1521,11 +1521,11 @@ ErrorOr<NonnullLockRefPtr<Inode>> Ext2FSInode::lookup(StringView name)
{
VERIFY(is_directory());
dbgln_if(EXT2_DEBUG, "Ext2FSInode[{}]:lookup(): Looking up '{}'", identifier(), name);
TRY(populate_lookup_cache());
InodeIndex inode_index;
{
MutexLocker locker(m_inode_lock);
TRY(populate_lookup_cache());
auto it = m_lookup_cache.find(name);
if (it == m_lookup_cache.end()) {
dbgln_if(EXT2_DEBUG, "Ext2FSInode[{}]:lookup(): '{}' not found", identifier(), name);

4
Kernel/FileSystem/Ext2FileSystem.h
View file

@ -53,7 +53,7 @@ private:
virtual ErrorOr<int> get_block_address(int) override;
ErrorOr<void> write_directory(Vector<Ext2FSDirectoryEntry>&);
ErrorOr<void> populate_lookup_cache() const;
ErrorOr<void> populate_lookup_cache();
ErrorOr<void> resize(u64);
ErrorOr<void> write_indirect_block(BlockBasedFileSystem::BlockIndex, Span<BlockBasedFileSystem::BlockIndex>);
ErrorOr<void> grow_doubly_indirect_block(BlockBasedFileSystem::BlockIndex, size_t, Span<BlockBasedFileSystem::BlockIndex>, Vector<BlockBasedFileSystem::BlockIndex>&, unsigned&);
@ -71,7 +71,7 @@ private:
Ext2FSInode(Ext2FS&, InodeIndex);
mutable Vector<BlockBasedFileSystem::BlockIndex> m_block_list;
mutable HashMap<NonnullOwnPtr<KString>, InodeIndex> m_lookup_cache;
HashMap<NonnullOwnPtr<KString>, InodeIndex> m_lookup_cache;
ext2_inode m_raw_inode {};
};