[PATCH 2/7] hv: allocate synic pages for all present CPUs

[Vitaly Kuznetsov]

It may happen that not all CPUs are online when we do hv_synic_alloc() and
in case more CPUs come online later we may try accessing these allocated
structures.

Signed-off-by: Vitaly Kuznetsov <vkuzn...@redhat.com>
---
 drivers/hv/hv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 60dbd6c..e4bb498 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -411,7 +411,7 @@ int hv_synic_alloc(void)
                goto err;
        }
 
-       for_each_online_cpu(cpu) {
+       for_each_present_cpu(cpu) {
                hv_context.event_dpc[cpu] = kmalloc(size, GFP_ATOMIC);
                if (hv_context.event_dpc[cpu] == NULL) {
                        pr_err("Unable to allocate event dpc\n");
@@ -482,7 +482,7 @@ void hv_synic_free(void)
        int cpu;
 
        kfree(hv_context.hv_numa_map);
-       for_each_online_cpu(cpu)
+       for_each_present_cpu(cpu)
                hv_synic_free_cpu(cpu);
 }
 
-- 
2.7.4