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Kernel: Switch ProcessGroup to IntrusiveList from InlineLinkedList

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This commit is contained in:
Brian Gianforcaro 2021-06-03 03:21:04 -07:00 • committed by Andreas Kling
parent ce74fce0df
commit 7e691f96e1
3 changed files with 11 additions and 13 deletions
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2
Kernel/Process.cpp
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@ -62,7 +62,7 @@ UNMAP_AFTER_INIT void Process::initialize()
next_pid.store(0, AK::MemoryOrder::memory_order_release); next_pid.store(0, AK::MemoryOrder::memory_order_release);
g_processes = new InlineLinkedList<Process>; g_processes = new InlineLinkedList<Process>;
g_process_groups = new InlineLinkedList<ProcessGroup>; g_process_groups = new ProcessGroup::List();
g_hostname = new String("courage"); g_hostname = new String("courage");
g_hostname_lock = new Lock; g_hostname_lock = new Lock;

6
Kernel/ProcessGroup.cpp
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@ -9,12 +9,12 @@
namespace Kernel { namespace Kernel {
RecursiveSpinLock g_process_groups_lock; RecursiveSpinLock g_process_groups_lock;
InlineLinkedList<ProcessGroup>* g_process_groups; ProcessGroup::List* g_process_groups;
ProcessGroup::~ProcessGroup() ProcessGroup::~ProcessGroup()
{ {
ScopedSpinLock lock(g_process_groups_lock); ScopedSpinLock lock(g_process_groups_lock);
g_process_groups->remove(this); g_process_groups->remove(*this);
} }
RefPtr<ProcessGroup> ProcessGroup::create(ProcessGroupID pgid) RefPtr<ProcessGroup> ProcessGroup::create(ProcessGroupID pgid)
@ -22,7 +22,7 @@ RefPtr<ProcessGroup> ProcessGroup::create(ProcessGroupID pgid)
auto process_group = adopt_ref_if_nonnull(new ProcessGroup(pgid)); auto process_group = adopt_ref_if_nonnull(new ProcessGroup(pgid));
if (process_group) { if (process_group) {
ScopedSpinLock lock(g_process_groups_lock); ScopedSpinLock lock(g_process_groups_lock);
g_process_groups->prepend(process_group); g_process_groups->prepend(*process_group);
} }
return process_group; return process_group;

16
Kernel/ProcessGroup.h
View file

@ -6,7 +6,7 @@
#pragma once #pragma once
#include <AK/InlineLinkedList.h> #include <AK/IntrusiveList.h>
#include <AK/RefCounted.h> #include <AK/RefCounted.h>
#include <AK/Weakable.h> #include <AK/Weakable.h>
#include <Kernel/Lock.h> #include <Kernel/Lock.h>
@ -17,14 +17,11 @@ namespace Kernel {
class ProcessGroup class ProcessGroup
: public RefCounted<ProcessGroup> : public RefCounted<ProcessGroup>
, public Weakable<ProcessGroup> , public Weakable<ProcessGroup> {
, public InlineLinkedListNode<ProcessGroup> {
AK_MAKE_NONMOVABLE(ProcessGroup); AK_MAKE_NONMOVABLE(ProcessGroup);
AK_MAKE_NONCOPYABLE(ProcessGroup); AK_MAKE_NONCOPYABLE(ProcessGroup);
friend InlineLinkedListNode<ProcessGroup>;
public: public:
~ProcessGroup(); ~ProcessGroup();
@ -40,13 +37,14 @@ private:
{ {
} }
ProcessGroup* m_prev { nullptr }; IntrusiveListNode<ProcessGroup> m_list_node;
ProcessGroup* m_next { nullptr };
ProcessGroupID m_pgid; ProcessGroupID m_pgid;
public:
using List = IntrusiveList<ProcessGroup, RawPtr<ProcessGroup>, &ProcessGroup::m_list_node>;
}; };
extern InlineLinkedList<ProcessGroup>* g_process_groups; extern ProcessGroup::List* g_process_groups;
extern RecursiveSpinLock g_process_groups_lock; extern RecursiveSpinLock g_process_groups_lock;
} }