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Kernel: Remove pointless ref-counting from PhysicalRegion

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These are not multiple-owner objects and have no use for ref-counting.
Make them simple value types instead (not eternal heap-allocated.)
This commit is contained in:
Andreas Kling 2021-07-11 14:29:02 +02:00
parent 29d53cbee2
commit b2cd9b2c88
4 changed files with 20 additions and 29 deletions
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12
Kernel/VM/PhysicalRegion.cpp
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@ -4,22 +4,14 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Bitmap.h>
#include <AK/NonnullRefPtr.h>
#include <AK/RefPtr.h>
#include <AK/Vector.h>
#include <Kernel/Assertions.h>
#include <Kernel/Random.h>
#include <Kernel/VM/PhysicalPage.h>
#include <Kernel/VM/PhysicalRegion.h>
namespace Kernel {
NonnullRefPtr<PhysicalRegion> PhysicalRegion::create(PhysicalAddress lower, PhysicalAddress upper)
{
return adopt_ref(*new PhysicalRegion(lower, upper));
}
PhysicalRegion::PhysicalRegion(PhysicalAddress lower, PhysicalAddress upper)
: m_lower(lower)
, m_upper(upper)
@ -44,7 +36,7 @@ unsigned PhysicalRegion::finalize_capacity()
return size();
}
NonnullRefPtr<PhysicalRegion> PhysicalRegion::take_pages_from_beginning(unsigned page_count)
PhysicalRegion PhysicalRegion::take_pages_from_beginning(unsigned page_count)
{
VERIFY(m_used == 0);
VERIFY(page_count > 0);
@ -59,7 +51,7 @@ NonnullRefPtr<PhysicalRegion> PhysicalRegion::take_pages_from_beginning(unsigned
finalize_capacity();
auto taken_region = create(taken_lower, taken_upper);
taken_region->finalize_capacity();
taken_region.finalize_capacity();
return taken_region;
}