From: Alastair D'Silva <alastair@xxxxxxxxxxx> When removing sufficiently large amounts of memory, we trigger RCU stall detection. By periodically calling cond_resched(), we avoid bogus stall warnings. Signed-off-by: Alastair D'Silva <alastair@xxxxxxxxxxx> --- mm/memory_hotplug.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index e096c987d261..382b3a0c9333 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -578,6 +578,9 @@ void __remove_pages(struct zone *zone, unsigned long phys_start_pfn, __remove_section(zone, __pfn_to_section(pfn), map_offset, altmap); map_offset = 0; + + if (!(i & 0x0FFF)) + cond_resched(); } set_zone_contiguous(zone); -- 2.21.0
