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Kernel: Make VMOBject construction OOM-aware

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This commit moves the allocation of the resources required for VMObject
from its constructors to the constructors of its child classes.

We're making this change to give the child classes the chance to expose
the fallibility of the allocation.
This commit is contained in:
creator1creeper1
2022-01-11 18:05:47 +01:00
committed by Idan Horowitz
parent 64778f9e69
commit d1f265e851
Notes: sideshowbarker 2024-07-17 20:50:21 +09:00 
Author: https://github.com/creator1creeper1
Commit: https://github.com/SerenityOS/serenity/commit/d1f265e8517
Pull-request: https://github.com/SerenityOS/serenity/pull/11843
Reviewed-by: https://github.com/IdanHo ✅
Reviewed-by: https://github.com/bgianfo
4 changed files with 30 additions and 13 deletions
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4
Kernel/Memory/InodeVMObject.cpp
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@@ -10,14 +10,14 @@
namespace Kernel::Memory {
InodeVMObject::InodeVMObject(Inode& inode, size_t size)
: VMObject(size)
: VMObject(VMObject::must_create_physical_pages_but_fixme_should_propagate_errors(size))
, m_inode(inode)
, m_dirty_pages(page_count(), false)
{
}
InodeVMObject::InodeVMObject(InodeVMObject const& other)
: VMObject(other)
: VMObject(other.must_clone_physical_pages_but_fixme_should_propagate_errors())
, m_inode(other.m_inode)
, m_dirty_pages(page_count(), false)
{