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| author | Oscar Salvador <osalvador@suse.com> | 2018-12-28 09:36:22 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-28 21:11:49 +0100 |
| commit | 2c2a5af6fed20cf74401c9d64319c76c5ff81309 (patch) | |
| tree | 54c8a6655f28b4e9234b2a720ee316634182b9cf /mm/memory_hotplug.c | |
| parent | mm: check nr_initialised with PAGES_PER_SECTION directly in defer_init() (diff) | |
| download | linux-2c2a5af6fed20cf74401c9d64319c76c5ff81309.tar.xz linux-2c2a5af6fed20cf74401c9d64319c76c5ff81309.zip | |
mm, memory_hotplug: add nid parameter to arch_remove_memory
Patch series "Do not touch pages in hot-remove path", v2.
This patchset aims for two things:
1) A better definition about offline and hot-remove stage
2) Solving bugs where we can access non-initialized pages
during hot-remove operations [2] [3].
This is achieved by moving all page/zone handling to the offline
stage, so we do not need to access pages when hot-removing memory.
[1] https://patchwork.kernel.org/cover/10691415/
[2] https://patchwork.kernel.org/patch/10547445/
[3] https://www.spinics.net/lists/linux-mm/msg161316.html
This patch (of 5):
This is a preparation for the following-up patches. The idea of passing
the nid is that it will allow us to get rid of the zone parameter
afterwards.
Link: http://lkml.kernel.org/r/20181127162005.15833-2-osalvador@suse.de
Signed-off-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory_hotplug.c')
| -rw-r--r-- | mm/memory_hotplug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 6258e0e923cc..0718cf7427b2 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1841,7 +1841,7 @@ void __ref __remove_memory(int nid, u64 start, u64 size) memblock_free(start, size); memblock_remove(start, size); - arch_remove_memory(start, size, NULL); + arch_remove_memory(nid, start, size, NULL); try_offline_node(nid); |