18 Oct
2024
18 Oct
'24
6:39 a.m.
On Fri, Oct 18, 2024 at 07:58:41AM +0200, Greg KH wrote:
On Thu, Oct 17, 2024 at 02:58:01PM -0700, chrisl@kernel.org wrote:
A few commits from Yu Zhao have been merged into 6.12. They need to be backported to 6.11.
Why?
- c2a967f6ab0ec ("mm/hugetlb_vmemmap: don't synchronize_rcu() without HVO")
- 95599ef684d01 ("mm/codetag: fix pgalloc_tag_split()")
- e0a955bf7f61c ("mm/codetag: add pgalloc_tag_copy()")
For mm changes, we need an explicit ack from the mm maintainers to take patches into the stable tree. Why were these not tagged with the normal "cc: stable@" tag in the first place?
I've got a possible regression in memory allocation profiling, and page splitting would be a likely culprit, so we should probably hold off on backporting until I bisect.