Expand description
All possible flags for VmaRef.
Constantsยง
- ACCOUNT
- Is a VM accounted object.
- ARCH_1
- Architecture-specific flag.
- DONTCOPY
- Do not copy this vma on fork.
- DONTDUMP
- Do not include in the core dump.
- DONTEXPAND
- Cannot expand with mremap().
- EXEC
- Mapping allows execution.
- HUGEPAGE
- MADV_HUGEPAGE marked this vma.
- HUGETLB
- Huge TLB Page VM.
- IO
- Memory mapped I/O or similar.
- LOCKONFAULT
- Lock the pages covered when they are faulted in.
- MAYEXEC
- Mapping may be updated to allow execution.
- MAYREAD
- Mapping may be updated to allow reads.
- MAYSHARE
- Mapping may be updated to be shared.
- MAYWRITE
- Mapping may be updated to allow writes.
- MERGEABLE
- KSM may merge identical pages.
- MIXEDMAP
- Can contain
struct pageand pure PFN pages. - NOHUGEPAGE
- MADV_NOHUGEPAGE marked this vma.
- NONE
- No flags are set.
- NORESERVE
- Should the VM suppress accounting.
- PFNMAP
- Page-ranges managed without
struct page, just pure PFN. - READ
- Mapping allows reads.
- SHARED
- Mapping is shared.
- SOFTDIRTY
- Not soft dirty clean area.
- SYNC
- Synchronous page faults. (DAX-specific)
- WIPEONFORK
- Wipe VMA contents in child on fork.
- WRITE
- Mapping allows writes.