[PATCH v1 1/5] mm/memory_hotplug: check for fatal signals only in offline_pages()

From: David Hildenbrand
Date: Tue Jun 27 2023 - 07:23:20 EST


Let's check for fatal signals only. That looks cleaner and still keeps
the documented use case for manual user-space triggered memory offlining
working. From Documentation/admin-guide/mm/memory-hotplug.rst:

% timeout $TIMEOUT offline_block | failure_handling

In fact, we even document there: "the offlining context can be terminated
by sending a fatal signal".

Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
---
mm/memory_hotplug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 8e0fa209d533..0d2151df4ee1 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1879,7 +1879,7 @@ int __ref offline_pages(unsigned long start_pfn, unsigned long nr_pages,
do {
pfn = start_pfn;
do {
- if (signal_pending(current)) {
+ if (fatal_signal_pending(current)) {
ret = -EINTR;
reason = "signal backoff";
goto failed_removal_isolated;
--
2.40.1