* [PATCH] powerpc/pseries: Switch to GFP_ATOMIC allocations in hotplug interrupt handler
@ 2019-06-12 14:21 Bharata B Rao
2019-06-12 16:38 ` Nathan Lynch
0 siblings, 1 reply; 2+ messages in thread
From: Bharata B Rao @ 2019-06-12 14:21 UTC (permalink / raw)
To: linuxppc-dev; +Cc: aneesh.kumar, Bharata B Rao
queue_hotplug_event() gets called from interrupt handler code. Use
GFP_ATOMIC allocations instead of GFP_KERNEL.
Signed-off-by: Bharata B Rao <bharata@linux.ibm.com>
---
arch/powerpc/platforms/pseries/dlpar.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 17958043e7f7..79b36d91be28 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -387,10 +387,10 @@ void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog)
struct pseries_hp_errorlog *hp_errlog_copy;
hp_errlog_copy = kmalloc(sizeof(struct pseries_hp_errorlog),
- GFP_KERNEL);
+ GFP_ATOMIC);
memcpy(hp_errlog_copy, hp_errlog, sizeof(struct pseries_hp_errorlog));
- work = kmalloc(sizeof(struct pseries_hp_work), GFP_KERNEL);
+ work = kmalloc(sizeof(struct pseries_hp_work), GFP_ATOMIC);
if (work) {
INIT_WORK((struct work_struct *)work, pseries_hp_work_fn);
work->errlog = hp_errlog_copy;
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] powerpc/pseries: Switch to GFP_ATOMIC allocations in hotplug interrupt handler
2019-06-12 14:21 [PATCH] powerpc/pseries: Switch to GFP_ATOMIC allocations in hotplug interrupt handler Bharata B Rao
@ 2019-06-12 16:38 ` Nathan Lynch
0 siblings, 0 replies; 2+ messages in thread
From: Nathan Lynch @ 2019-06-12 16:38 UTC (permalink / raw)
To: Bharata B Rao; +Cc: linuxppc-dev, aneesh.kumar
Bharata B Rao <bharata@linux.ibm.com> writes:
> queue_hotplug_event() gets called from interrupt handler code. Use
> GFP_ATOMIC allocations instead of GFP_KERNEL.
https://patchwork.ozlabs.org/patch/1106626/
(That version also adds a missing check for the result of the first
kmalloc.)
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-06-12 16:38 ` Nathan Lynch
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