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authorJakub Kicinski <[email protected]>2025-01-16 18:30:22 +0000
committerJakub Kicinski <[email protected]>2025-01-16 18:34:59 +0000
commit2ee738e90e80850582cbe10f34c6447965c1d87b (patch)
tree75a5d764d283bfac0648710f1e8c51680ef992fa /mm/vmstat.c
parentMerge branch 'net-stmmac-rx-performance-improvement' (diff)
parentMerge tag 'net-6.13-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff)
downloadkernel-2ee738e90e80850582cbe10f34c6447965c1d87b.tar.gz
kernel-2ee738e90e80850582cbe10f34c6447965c1d87b.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.13-rc8). Conflicts: drivers/net/ethernet/realtek/r8169_main.c 1f691a1fc4be ("r8169: remove redundant hwmon support") 152d00a91396 ("r8169: simplify setting hwmon attribute visibility") https://lore.kernel.org/[email protected] Adjacent changes: drivers/net/ethernet/broadcom/bnxt/bnxt.c 152f4da05aee ("bnxt_en: add support for rx-copybreak ethtool command") f0aa6a37a3db ("eth: bnxt: always recalculate features after XDP clearing, fix null-deref") drivers/net/ethernet/intel/ice/ice_type.h 50327223a8bb ("ice: add lock to protect low latency interface") dc26548d729e ("ice: Fix quad registers read on E825") Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'mm/vmstat.c')
-rw-r--r--mm/vmstat.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 4d016314a56c..16bfe1c694dd 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -2122,10 +2122,20 @@ static void __init start_shepherd_timer(void)
{
int cpu;
- for_each_possible_cpu(cpu)
+ for_each_possible_cpu(cpu) {
INIT_DEFERRABLE_WORK(per_cpu_ptr(&vmstat_work, cpu),
vmstat_update);
+ /*
+ * For secondary CPUs during CPU hotplug scenarios,
+ * vmstat_cpu_online() will enable the work.
+ * mm/vmstat:online enables and disables vmstat_work
+ * symmetrically during CPU hotplug events.
+ */
+ if (!cpu_online(cpu))
+ disable_delayed_work_sync(&per_cpu(vmstat_work, cpu));
+ }
+
schedule_delayed_work(&shepherd,
round_jiffies_relative(sysctl_stat_interval));
}
@@ -2148,13 +2158,14 @@ 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)
{
- cancel_delayed_work_sync(&per_cpu(vmstat_work, cpu));
+ disable_delayed_work_sync(&per_cpu(vmstat_work, cpu));
return 0;
}