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Revert "vmstat: disable vmstat_work on vmstat_cpu_down_prep()" 

This reverts commit adcfb264c3.

It turns out this just causes a different warning splat instead that
seems to be much easier to trigger, so let's revert ASAP.

Reported-and-bisected-by: Borislav Petkov <bp@alien8.de>
Tested-by: Breno Leitao <leitao@debian.org>
Reported-by: Alexander Gordeev <agordeev@linux.ibm.com>
Link: https://lore.kernel.org/all/20250106131817.GAZ3vYGVr3-hWFFPLj@fat_crate.local/
Cc: Koichiro Den <koichiro.den@canonical.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2025-01-06 06:10:24 -08:00
parent 9d89551994
commit cd6313beae
1 changed files with 1 additions and 2 deletions
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3
mm/vmstat.c
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@ -2148,14 +2148,13 @@ static int vmstat_cpu_online(unsigned int cpu)
if (!node_state(cpu_to_node(cpu), N_CPU)) {
node_set_state(cpu_to_node(cpu), N_CPU);
}
enable_delayed_work(&per_cpu(vmstat_work, cpu));
return 0;
}
static int vmstat_cpu_down_prep(unsigned int cpu)
{
disable_delayed_work_sync(&per_cpu(vmstat_work, cpu));
cancel_delayed_work_sync(&per_cpu(vmstat_work, cpu));
return 0;
}