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| author | Will Deacon <will@kernel.org> | 2020-11-24 21:49:26 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-01-20 17:46:04 +0300 |
| commit | 0388f9c7433024ccf3909b3404a745100f006a17 (patch) | |
| tree | 0d74c4b9b4829c052f466183d05fb02eca833c14 /include/linux/mm.h | |
| parent | 46bdb4277f98e70d0c91f4289897ade533fe9e80 (diff) | |
| download | linux-0388f9c7433024ccf3909b3404a745100f006a17.tar.xz | |
arm64: mm: Implement arch_wants_old_prefaulted_pte()
On CPUs with hardware AF/DBM, initialising prefaulted PTEs as 'old'
improves vmscan behaviour and does not appear to introduce any overhead
elsewhere.
Implement arch_wants_old_prefaulted_pte() to return 'true' if we detect
hardware access flag support at runtime. This can be extended in future
based on MIDR matching if necessary.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'include/linux/mm.h')
0 files changed, 0 insertions, 0 deletions