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-rw-r--r--arch/powerpc/kernel/fadump.c8
-rw-r--r--arch/powerpc/kernel/head_book3s_32.S4
-rw-r--r--arch/powerpc/kernel/sysfs.c17
3 files changed, 9 insertions, 20 deletions
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index d03e488cfe9c..4fdb7c77fda1 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -113,6 +113,12 @@ static int __init fadump_cma_init(void)
}
/*
+ * If CMA activation fails, keep the pages reserved, instead of
+ * exposing them to buddy allocator. Same as 'fadump=nocma' case.
+ */
+ cma_reserve_pages_on_error(fadump_cma);
+
+ /*
* So we now have successfully initialized cma area for fadump.
*/
pr_info("Initialized 0x%lx bytes cma area at %ldMB from 0x%lx "
@@ -544,7 +550,7 @@ int __init fadump_reserve_mem(void)
if (!fw_dump.nocma) {
fw_dump.boot_memory_size =
ALIGN(fw_dump.boot_memory_size,
- FADUMP_CMA_ALIGNMENT);
+ CMA_MIN_ALIGNMENT_BYTES);
}
#endif
diff --git a/arch/powerpc/kernel/head_book3s_32.S b/arch/powerpc/kernel/head_book3s_32.S
index fa84744d6b24..b876ef8c70a7 100644
--- a/arch/powerpc/kernel/head_book3s_32.S
+++ b/arch/powerpc/kernel/head_book3s_32.S
@@ -421,14 +421,14 @@ InstructionTLBMiss:
*/
/* Get PTE (linux-style) and check access */
mfspr r3,SPRN_IMISS
-#ifdef CONFIG_MODULES
+#if defined(CONFIG_MODULES) || defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_KFENCE)
lis r1, TASK_SIZE@h /* check if kernel address */
cmplw 0,r1,r3
#endif
mfspr r2, SPRN_SDR1
li r1,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC | _PAGE_USER
rlwinm r2, r2, 28, 0xfffff000
-#ifdef CONFIG_MODULES
+#if defined(CONFIG_MODULES) || defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_KFENCE)
bgt- 112f
lis r2, (swapper_pg_dir - PAGE_OFFSET)@ha /* if kernel address, use */
li r1,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index d45a415d5374..2069bbb90a9a 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -1110,14 +1110,6 @@ EXPORT_SYMBOL_GPL(cpu_remove_dev_attr_group);
/* NUMA stuff */
#ifdef CONFIG_NUMA
-static void __init register_nodes(void)
-{
- int i;
-
- for (i = 0; i < MAX_NUMNODES; i++)
- register_one_node(i);
-}
-
int sysfs_add_device_to_node(struct device *dev, int nid)
{
struct node *node = node_devices[nid];
@@ -1132,13 +1124,6 @@ void sysfs_remove_device_from_node(struct device *dev, int nid)
sysfs_remove_link(&node->dev.kobj, kobject_name(&dev->kobj));
}
EXPORT_SYMBOL_GPL(sysfs_remove_device_from_node);
-
-#else
-static void __init register_nodes(void)
-{
- return;
-}
-
#endif
/* Only valid if CPU is present. */
@@ -1155,8 +1140,6 @@ static int __init topology_init(void)
{
int cpu, r;
- register_nodes();
-
for_each_possible_cpu(cpu) {
struct cpu *c = &per_cpu(cpu_devices, cpu);