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Kernel: Make Process::allocate_region*() return KResultOr<Region*>

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This allows region allocation to return specific errors and we don't
have to assume every failure is an ENOMEM.
This commit is contained in:
Andreas Kling 2021-01-15 17:27:52 +01:00
parent 7899e14e72
commit 64b0d89335
Notes: sideshowbarker 2024-07-18 23:51:04 +09:00
10 changed files with 70 additions and 79 deletions
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6
Kernel/FileSystem/AnonymousFile.cpp
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@ -47,11 +47,7 @@ KResultOr<Region*> AnonymousFile::mmap(Process& process, FileDescription&, Virtu
if (size != m_vmobject->size())
return KResult(-EINVAL);
auto* region = process.allocate_region_with_vmobject(preferred_vaddr, size, m_vmobject, offset, {}, prot, shared);
if (!region)
return KResult(-ENOMEM);
return region;
return process.allocate_region_with_vmobject(preferred_vaddr, size, m_vmobject, offset, {}, prot, shared);
}
}