fergalmoran/ladybird
1
0
Fork 0
mirror of https://github.com/fergalmoran/ladybird.git synced 2025-12-25 10:48:41 +00:00
Code Issues Packages Projects Releases Wiki Activity

Kernel: Improve some low-memory situations with ext2

Browse Source
This commit is contained in:
Tom
2020-12-31 20:24:28 -07:00
committed by Andreas Kling
parent 54c66b8f7b
commit ae956edf6e
2 changed files with 9 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
Kernel/FileSystem/Ext2FileSystem.cpp
View File

@@ -924,7 +924,6 @@ KResult Ext2FSInode::traverse_as_directory(Function<bool(const FS::DirectoryEntr
#endif
auto buffer_or = read_entire();
ASSERT(!buffer_or.is_error());
if (buffer_or.is_error())
return buffer_or.error();
@@ -1537,11 +1536,11 @@ KResultOr<NonnullRefPtr<Inode>> Ext2FS::create_inode(InodeIdentifier parent_id,
return inode.release_nonnull();
}
void Ext2FSInode::populate_lookup_cache() const
bool Ext2FSInode::populate_lookup_cache() const
{
LOCKER(m_lock);
if (!m_lookup_cache.is_empty())
return;
return true;
HashMap<String, unsigned> children;
KResult result = traverse_as_directory([&children](auto& entry) {
@@ -1549,17 +1548,20 @@ void Ext2FSInode::populate_lookup_cache() const
return true;
});
ASSERT(result.is_success());
if (!result.is_success())
return false;
if (!m_lookup_cache.is_empty())
return;
return false;
m_lookup_cache = move(children);
return true;
}
RefPtr<Inode> Ext2FSInode::lookup(StringView name)
{
ASSERT(is_directory());
populate_lookup_cache();
if (!populate_lookup_cache())
return {};
LOCKER(m_lock);
auto it = m_lookup_cache.find(name.hash(), [&](auto& entry) { return entry.key == name; });
if (it != m_lookup_cache.end())