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system: introduce a new MlockState enum

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Replace the boolean value enable_mlock with an enum and add a helper to
decide whether we should be calling os_mlock.

This is a stepping stone towards introducing a new mlock mode, which
will be the third possible state of this enum.

Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Link: https://lore.kernel.org/r/20250212143920.1269754-4-d-tatianin@yandex-team.ru
Signed-off-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
Daniil Tatianin 2025-02-12 17:39:19 +03:00 • committed by Peter Xu
parent cb74f2b8a6
commit cd2e472e54
5 changed files with 24 additions and 6 deletions
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2
hw/virtio/virtio-mem.c
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@ -991,7 +991,7 @@ static void virtio_mem_device_realize(DeviceState *dev, Error **errp)
return;
}
if (enable_mlock) {
if (should_mlock(mlock_state)) {
error_setg(errp, "Incompatible with mlock");
return;
}