* jeffxu@chromium.org jeffxu@chromium.org [240814 03:14]:
From: Jeff Xu jeffxu@chromium.org
mremap doesn't allow relocate, expand, shrink across VMA boundaries, refactor the code to check src address range before doing anything on the destination, i.e. destination won't be unmapped, if src address failed the boundaries check.
This also allows us to remove can_modify_mm from mremap.c, since the src address must be single VMA, can_modify_vma is used.
I don't think sending out a separate patch to address the same thing as the patch you said you were testing [1] is the correct approach. You had already sent suggestions on mremap changes - why send this patch set instead of making another suggestion?
Maybe send your selftest to be included with the initial patch set would work? Does this test pass with the other patch set?
[1] https://lore.kernel.org/all/CALmYWFs0v07z5vheDt1h3hD+3--yr6Va0ZuQeaATo+-8MuR...