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865f370bf9
Add an interface to disable lazy vunmap by forcing the threshold to zero. This might be interesting for debugging/testing in general, but primarily helps a horrible situation which needs to guarantee that vmalloc aliases are up-to-date from atomic context, wherein the only practical solution is to never let them get stale in the first place. Bug: 223346425 (cherry picked from commit 2a34c1503b85f49dd472dfd932dfcd16cab8ee8a https://git.gitlab.arm.com/linux-arm/linux-rm.git arm64/2454944-dev) Change-Id: I12fbbe3903f76a028ceea91ed078f0de2abe3815 Signed-off-by: Robin Murphy <robin.murphy@arm.com> [BM: Convert to a flag that can be explicitly modified at runtime instead of relying on arch specific bits] Signed-off-by: Beata Michalska <beata.michalska@arm.com> |
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