From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org, virtualization@lists.linux-foundation.org,
David Hildenbrand <david@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Michael S. Tsirkin" <mst@redhat.com>,
John Hubbard <jhubbard@nvidia.com>,
Oscar Salvador <osalvador@suse.de>,
Michal Hocko <mhocko@suse.com>, Jason Wang <jasowang@redhat.com>,
Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Subject: [PATCH v1 1/5] mm/memory_hotplug: check for fatal signals only in offline_pages()
Date: Tue, 27 Jun 2023 13:22:16 +0200 [thread overview]
Message-ID: <20230627112220.229240-2-david@redhat.com> (raw)
In-Reply-To: <20230627112220.229240-1-david@redhat.com>
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@redhat.com>
---
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
next prev parent reply other threads:[~2023-06-27 11:22 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-27 11:22 [PATCH v1 0/5] mm/memory_hotplug: make offline_and_remove_memory() timeout instead of failing on fatal signals David Hildenbrand
2023-06-27 11:22 ` David Hildenbrand [this message]
2023-06-27 12:34 ` [PATCH v1 1/5] mm/memory_hotplug: check for fatal signals only in offline_pages() Michal Hocko
2023-06-27 13:28 ` David Hildenbrand
2023-06-27 14:07 ` Michal Hocko
2023-06-27 11:22 ` [PATCH v1 2/5] virtio-mem: convert most offline_and_remove_memory() errors to -EBUSY David Hildenbrand
2023-06-27 11:22 ` [PATCH v1 3/5] mm/memory_hotplug: make offline_and_remove_memory() timeout instead of failing on fatal signals David Hildenbrand
2023-06-27 12:40 ` Michal Hocko
2023-06-27 13:14 ` David Hildenbrand
2023-06-27 14:17 ` Michal Hocko
2023-06-27 14:57 ` David Hildenbrand
2023-06-27 15:14 ` Michal Hocko
2023-06-27 21:34 ` John Hubbard
2023-06-28 2:00 ` kernel test robot
2023-06-27 11:22 ` [PATCH v1 4/5] virtio-mem: set the timeout for offline_and_remove_memory() to 10 seconds David Hildenbrand
2023-06-27 11:22 ` [PATCH v1 5/5] virtio-mem: check if the config changed before (fake) offlining memory David Hildenbrand
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