Jaewon Kim jaewon31.kim@samsung.com 于2022年9月19日周一 09:08写道：
On Wed, Sep 14, 2022 at 08:46:15AM +0800, yong w wrote:
Greg KH gregkh@linuxfoundation.org 于2022年9月13日周二 21:54?道：
On Tue, Sep 13, 2022 at 09:09:47PM +0800, yong wrote:
Hello, This patch is required to be patched in linux-5.4.y and linux-4.19.y.
What is "this patch"? There is no context here :(
Sorry, I forgot to quote the original patch. the patch is as follows
f27ce0e page_alloc: consider highatomic reserve in watermark fastIn addition to that, the following two patches are somewhat related:
3334a45 mm/page_alloc: use ac->high_zoneidx for classzone_idx 9282012 page_alloc: fix invalid watermark check on a negative valueIn what way? What should be done here by us?
I think these two patches should also be merged.
The classzone_idx parameter is used in the zone_watermark_fastfunctionzone, and 3334a45 use ac->high_zoneidx for classzone_idx. "9282012 page_alloc: fix invalid watermark check on a negative value" fix f27ce0e introduced issues
Ok, I need an ack by all the developers involved in those commits, as well as the subsystem maintainer so that I know it's ok to take them.
Can you provide a series of backported and tested patches so that they are easy to review?
thanks,
greg k-h
Hello I didn't know my Act is needed to merge it.
Acked-by: Jaewon Kim jaewon31.kim@samsung.com
I don't understand well why the commit f27ce0e has dependency on 3334a45, though.
Hello, the classzone_idx is used in the zone_watermark_fast function, and there will be conflicts when f27ce0e is merged.
Looking back, the following two patches adjust the classzone_idx parameter. 3334a45 mm/page_alloc: use ac->high_zoneidx for classzone_idx 97a225e mm/page_alloc: integrate classzone_idx and high_zoneidx and 3334a45 is the key modification.
Actually, I think 3334a45 can be merged or not.
Thanks.