Merge "Add CowOperationV2" into main am: a10bfe1d13 am: 445d13f73f am: 3820d87715 am: 16dfc062fa am: c22a2ba0c3

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2736100

Change-Id: I1731712b31f2f70860b2a8bdd9659648516b67df
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>