On Thu, Oct 24, 2024 at 09:19:41PM +0800, Yu Kuai wrote:
From: Yu Kuai yukuai3@huawei.com
Fix patch is patch 27, relied patches are from:
- patches from set [1] to add helpers to maple_tree, the last patch to
improve fork() performance is not backported;
So things slowed down?
- patches from set [2] to change maple_tree, and follow up fixes;
- patches from set [3] to convert offset_ctx from xarray to maple_tree;
Please notice that I'm not an expert in this area, and I'm afraid to make manual changes. That's why patch 16 revert the commit that is different from mainline and will cause conflict backporting new patches. patch 28 pick the original mainline patch again.
(And this is what we did to fix the CVE in downstream kernels).
[1] https://lore.kernel.org/all/20231027033845.90608-1-zhangpeng.00@bytedance.co... [2] https://lore.kernel.org/all/20231101171629.3612299-2-Liam.Howlett@oracle.com... [3] https://lore.kernel.org/all/170820083431.6328.16233178852085891453.stgit@91....
This series looks rough. I want to have the maintainers of these files/subsystems to ack this before being able to take them.
thanks,
greg k-h