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Revert "Kernel: Implement an asynchronous device request stack"

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This reverts commit 2fd5ce1eb0.

This broke booting without SMP. (PR was #3921)
This commit is contained in:
Andreas Kling 2020-11-04 21:25:26 +01:00
parent 70eaadc1cd
commit 501cef2bd7
17 changed files with 245 additions and 803 deletions
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24
Kernel/Devices/Device.h
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@ -34,12 +34,10 @@
// There are two main subclasses:
// - BlockDevice (random access)
// - CharacterDevice (sequential)
#include <AK/DoublyLinkedList.h>
#include <AK/Function.h>
#include <AK/HashMap.h>
#include <Kernel/Devices/AsyncDeviceRequest.h>
#include <Kernel/Arch/i386/CPU.h>
#include <Kernel/FileSystem/File.h>
#include <Kernel/Lock.h>
#include <Kernel/UnixTypes.h>
namespace Kernel {
@ -63,23 +61,6 @@ public:
static void for_each(Function<void(Device&)>);
static Device* get_device(unsigned major, unsigned minor);
void process_next_queued_request(Badge<AsyncDeviceRequest>, const AsyncDeviceRequest&);
template<typename AsyncRequestType, typename... Args>
NonnullRefPtr<AsyncRequestType> make_request(Args&&... args)
{
auto request = adopt(*new AsyncRequestType(*this, forward<Args>(args)...));
bool was_empty;
{
ScopedSpinLock lock(m_requests_lock);
was_empty = m_requests.is_empty();
m_requests.append(request);
}
if (was_empty)
request->do_start({});
return request;
}
protected:
Device(unsigned major, unsigned minor);
void set_uid(uid_t uid) { m_uid = uid; }
@ -92,9 +73,6 @@ private:
unsigned m_minor { 0 };
uid_t m_uid { 0 };
gid_t m_gid { 0 };
SpinLock<u8> m_requests_lock;
DoublyLinkedList<RefPtr<AsyncDeviceRequest>> m_requests;
};
}