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The comment here is no longer accurate, since the current shrinker code requires a full ref before touching any objects. Also unset_pages() should already do the required make_unshrinkable() for us, if needed, which is also nicely balanced with set_pages(). Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211018091055.1998191-4-matthew.auld@intel.com