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Kernel: Use a FixedArray for VMObject::m_physical_pages

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This makes VMObject 8 bytes smaller since we can use the array size as
the page count.

The size() is now also computed from the page count instead of being
a separate value. This makes sizes always be a multiple of PAGE_SIZE,
which is sane.
This commit is contained in:
Andreas Kling 2019-08-07 20:12:50 +02:00
parent 5096eaa845
commit b67200dfea
5 changed files with 19 additions and 39 deletions
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2
Kernel/FileSystem/ProcFS.cpp
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@ -315,7 +315,7 @@ Optional<KBuffer> procfs$pid_vmo(InodeIdentifier identifier)
region.vmo().is_anonymous() ? "anonymous" : "file-backed",
&region.vmo(),
region.vmo().ref_count());
for (int i = 0; i < region.vmo().page_count(); ++i) {
for (size_t i = 0; i < region.vmo().page_count(); ++i) {
auto& physical_page = region.vmo().physical_pages()[i];
builder.appendf("P%x%s(%u) ",
physical_page ? physical_page->paddr().get() : 0,