diff mbox series

powerpc/imc-pmu: use GFP_ATOMIC under spin_lock()

Message ID 20230116035047.2323412-1-yangyingliang@huawei.com (mailing list archive)
State Superseded
Headers show
Series powerpc/imc-pmu: use GFP_ATOMIC under spin_lock() | expand

Checks

Context Check Description
snowpatch_ozlabs/github-powerpc_selftests success Successfully ran 8 jobs.
snowpatch_ozlabs/github-powerpc_ppctests success Successfully ran 8 jobs.
snowpatch_ozlabs/github-powerpc_sparse success Successfully ran 4 jobs.
snowpatch_ozlabs/github-powerpc_kernel_qemu success Successfully ran 24 jobs.
snowpatch_ozlabs/github-powerpc_clang success Successfully ran 6 jobs.

Commit Message

Yang Yingliang Jan. 16, 2023, 3:50 a.m. UTC 
After commit 76d588dddc45 ("powerpc/imc-pmu: Fix use of mutex
in IRQs disabled section"), init_nest_pmu_ref() is called under
spin_lock(), use GFP_ATOMIC while calling kcalloc().

Fixes: 76d588dddc45 ("powerpc/imc-pmu: Fix use of mutex in IRQs disabled section")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 arch/powerpc/perf/imc-pmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index 100e97daf76b..a9094835e648 100644
--- a/arch/powerpc/perf/imc-pmu.c
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -1521,7 +1521,7 @@  static int init_nest_pmu_ref(void)
 	int nid, i, cpu;
 
 	nest_imc_refc = kcalloc(num_possible_nodes(), sizeof(*nest_imc_refc),
-								GFP_KERNEL);
+								GFP_ATOMIC);
 
 	if (!nest_imc_refc)
 		return -ENOMEM;