diff options
| author | Laurent Dufour <ldufour@linux.ibm.com> | 2022-11-25 20:32:04 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-12-07 12:30:09 +0300 |
| commit | 9b574cfab7d4e68c67c4ee4fcde912ef54a25b88 (patch) | |
| tree | cbd873252cf1d7061b14e25c02c5baad2d5fd6e6 /arch/powerpc | |
| parent | 340a4a9f8773e102cc5ef531665970a686dfa245 (diff) | |
| download | linux-9b574cfab7d4e68c67c4ee4fcde912ef54a25b88.tar.xz | |
powerpc/pseries: reset the RCU watchdogs after a LPM
The RCU watchdog timer should be reset when restarting the CPU after a
Live Partition Mobility operation.
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Combine comments into a single comment block]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221125173204.15329-1-ldufour@linux.ibm.com
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/pseries/mobility.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c index 634fac5db3f9..4cea71aa0f41 100644 --- a/arch/powerpc/platforms/pseries/mobility.c +++ b/arch/powerpc/platforms/pseries/mobility.c @@ -635,10 +635,13 @@ retry: prod_others(); } /* - * Execution may have been suspended for several seconds, so - * reset the watchdog. + * Execution may have been suspended for several seconds, so reset + * the watchdogs. touch_nmi_watchdog() also touches the soft lockup + * watchdog. */ + rcu_cpu_stall_reset(); touch_nmi_watchdog(); + return ret; } |