Argument "align" in alloc_shared_lppaca() function was unused inside the
function. Let's fix it and update code comment.
Cc: linux-ker...@vger.kernel.org
Cc: Thiago Jung Bauermann <bauer...@linux.ibm.com>
Cc: Ram Pai <linux...@us.ibm.com>
Cc: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
Cc: Laurent Dufour <lduf...@linux.ibm.com>
Signed-off-by: Satheesh Rajendran <sathn...@linux.vnet.ibm.com>
---
arch/powerpc/kernel/paca.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 8d96169c597e..9088e107fb43 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -70,7 +70,7 @@ static void *__init alloc_shared_lppaca(unsigned long size,
unsigned long align,
shared_lppaca =
memblock_alloc_try_nid(shared_lppaca_total_size,
- PAGE_SIZE, MEMBLOCK_LOW_LIMIT,
+ align, MEMBLOCK_LOW_LIMIT,
limit, NUMA_NO_NODE);
if (!shared_lppaca)
panic("cannot allocate shared data");
@@ -122,7 +122,14 @@ static struct lppaca * __init new_lppaca(int cpu, unsigned
long limit)
return NULL;
if (is_secure_guest())
- lp = alloc_shared_lppaca(LPPACA_SIZE, 0x400, limit, cpu);
+ /*
+ * See Documentation/powerpc/ultravisor.rst for mode details
+ *
+ * UV/HV data share is in PAGE granularity, In order to minimize
+ * the number of pages shared and maximize the use of a page,
+ * let's use page align.
+ */
+ lp = alloc_shared_lppaca(LPPACA_SIZE, PAGE_SIZE, limit, cpu);
else
lp = alloc_paca_data(LPPACA_SIZE, 0x400, limit, cpu);
--
2.26.2
