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Kernel: Make SharedInodeVMObject allocation OOM-safe

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This commit is contained in:
Andreas Kling 2021-07-11 17:52:07 +02:00
parent 59049ae4b7
commit af8c74a328
4 changed files with 17 additions and 6 deletions
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6
Kernel/VM/SharedInodeVMObject.cpp
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@ -9,12 +9,14 @@
namespace Kernel {
NonnullRefPtr<SharedInodeVMObject> SharedInodeVMObject::create_with_inode(Inode& inode)
RefPtr<SharedInodeVMObject> SharedInodeVMObject::try_create_with_inode(Inode& inode)
{
size_t size = inode.size();
if (auto shared_vmobject = inode.shared_vmobject())
return shared_vmobject.release_nonnull();
auto vmobject = adopt_ref(*new SharedInodeVMObject(inode, size));
auto vmobject = adopt_ref_if_nonnull(new (nothrow) SharedInodeVMObject(inode, size));
if (!vmobject)
return nullptr;
vmobject->inode().set_shared_vmobject(*vmobject);
return vmobject;
}