Greg KH gregkh@linuxfoundation.org 于2022年9月13日周二 21:54写道：
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 fast
In 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_fast functionzone, and 3334a45 use ac->high_zoneidx for classzone_idx. "9282012 page_alloc: fix invalid watermark check on a negative value" fix f27ce0e introduced issues
confused,
greg k-h