justin/jsix_import
1
0
Fork 0
Code Issues 1 Pull Requests Actions Packages Projects Releases Wiki Activity

[kernel] Remove obsolete 'mappings' list from VMAs

Browse Source 
The vm_area_shared type of VMA used to track mappings in a separate
array, which doubled information and wasted space. This was no longer
used, and is now removed.
This commit is contained in:
Justin C. Miller
2020-09-27 21:47:35 -07:00
parent 87b0a93d32
commit da38006f44
2 changed files with 0 additions and 159 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
src/kernel/objects/vm_area.h
View File

@@ -100,28 +100,8 @@ public:
virtual vm_mapper & mapper() override { return m_mapper; }
virtual const vm_mapper & mapper() const override { return m_mapper; }
virtual void commit(uintptr_t phys, uintptr_t offset, size_t count) override;
virtual void uncommit(uintptr_t offset, size_t count) override;
private:
vm_mapper_multi m_mapper;
struct mapping {
uintptr_t offset;
size_t count;
uintptr_t phys;
int compare(const struct mapping &o) const {
return offset > o.offset ? 1 : offset < o.offset ? -1 : 0;
}
inline uintptr_t end() const { return offset + count * memory::frame_size; }
inline uintptr_t phys_end() const { return phys + count * memory::frame_size; }
};
size_t overlaps(uintptr_t offset, size_t pages, size_t *count);
kutil::vector<mapping> m_mappings;
};