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Kernel: Propagate failure to commit VM regions in more places

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Ultimately we should not panic just because we can't fully commit a VM
region (by populating it with physical pages.)

This patch handles some of the situations where commit() can fail.
This commit is contained in:
Andreas Kling 2020-05-08 21:47:08 +02:00
parent 25db315b29
commit 042b1f6814
3 changed files with 12 additions and 12 deletions
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4
Kernel/Process.h
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@ -374,9 +374,9 @@ public:
bool is_superuser() const { return m_euid == 0; }
Region* allocate_region_with_vmobject(VirtualAddress, size_t, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot);
Region* allocate_region(VirtualAddress, size_t, const String& name, int prot = PROT_READ | PROT_WRITE, bool commit = true);
Region* allocate_region(VirtualAddress, size_t, const String& name, int prot = PROT_READ | PROT_WRITE, bool should_commit = true);
Region* allocate_region_with_vmobject(const Range&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, const String& name, int prot);
Region* allocate_region(const Range&, const String& name, int prot = PROT_READ | PROT_WRITE, bool commit = true);
Region* allocate_region(const Range&, const String& name, int prot = PROT_READ | PROT_WRITE, bool should_commit = true);
bool deallocate_region(Region& region);
Region& allocate_split_region(const Region& source_region, const Range&, size_t offset_in_vmobject);