The quilt patch titled
Subject: mm/memory-failure: allow memory allocation from emergency reserves
has been removed from the -mm tree. Its filename was
mm-memory-failure-allow-memory-allocation-from-emergency-reserves.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
From: Rui Qi <qirui.001@xxxxxxxxxxxxx>
Subject: mm/memory-failure: allow memory allocation from emergency reserves
Date: Tue, 25 Jun 2024 10:23:42 +0800
We hope that memory errors can be successfully handled quickly, using
__GFP_MEMALLOC can help us improve the success rate of processing under
memory pressure, because to_kill struct is freed very quickly, so using
__GFP_MEMALLOC will not exacerbate memory pressure for a long time, and
more memory will be freed after killed task exiting, which will also
reduce memory pressure.
Link: https://lkml.kernel.org/r/20240625022342.6158-1-qirui.001@xxxxxxxxxxxxx
Signed-off-by: Rui Qi <qirui.001@xxxxxxxxxxxxx>
Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Naoya Horiguchi <nao.horiguchi@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory-failure.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/mm/memory-failure.c~mm-memory-failure-allow-memory-allocation-from-emergency-reserves
+++ a/mm/memory-failure.c
@@ -440,7 +440,7 @@ static void __add_to_kill(struct task_st
{
struct to_kill *tk;
- tk = kmalloc(sizeof(struct to_kill), GFP_ATOMIC);
+ tk = kmalloc(sizeof(struct to_kill), GFP_ATOMIC | __GFP_MEMALLOC);
if (!tk) {
pr_err("Out of memory while machine check handling\n");
return;
@@ -1920,7 +1920,7 @@ static int folio_set_hugetlb_hwpoison(st
return -EHWPOISON;
}
- raw_hwp = kmalloc(sizeof(struct raw_hwp_page), GFP_ATOMIC);
+ raw_hwp = kmalloc(sizeof(struct raw_hwp_page), GFP_ATOMIC | __GFP_MEMALLOC);
if (raw_hwp) {
raw_hwp->page = page;
llist_add(&raw_hwp->node, head);
_
Patches currently in -mm which might be from qirui.001@xxxxxxxxxxxxx are
