Commit 421b8f20 authored by Vitaly Kuznetsov's avatar Vitaly Kuznetsov Committed by Greg Kroah-Hartman

hv: allocate synic pages for all present CPUs

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: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c0bb0392
...@@ -411,7 +411,7 @@ int hv_synic_alloc(void) ...@@ -411,7 +411,7 @@ int hv_synic_alloc(void)
goto err; goto err;
} }
for_each_online_cpu(cpu) { for_each_present_cpu(cpu) {
hv_context.event_dpc[cpu] = kmalloc(size, GFP_ATOMIC); hv_context.event_dpc[cpu] = kmalloc(size, GFP_ATOMIC);
if (hv_context.event_dpc[cpu] == NULL) { if (hv_context.event_dpc[cpu] == NULL) {
pr_err("Unable to allocate event dpc\n"); pr_err("Unable to allocate event dpc\n");
...@@ -482,7 +482,7 @@ void hv_synic_free(void) ...@@ -482,7 +482,7 @@ void hv_synic_free(void)
int cpu; int cpu;
kfree(hv_context.hv_numa_map); kfree(hv_context.hv_numa_map);
for_each_online_cpu(cpu) for_each_present_cpu(cpu)
hv_synic_free_cpu(cpu); hv_synic_free_cpu(cpu);
} }
......
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