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-rw-r--r--arch/powerpc/mm/pgtable-hash64.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/powerpc/mm/pgtable-hash64.c b/arch/powerpc/mm/pgtable-hash64.c
index 469808e77e58..199bfda5f0d9 100644
--- a/arch/powerpc/mm/pgtable-hash64.c
+++ b/arch/powerpc/mm/pgtable-hash64.c
@@ -24,6 +24,10 @@
#define CREATE_TRACE_POINTS
#include <trace/events/thp.h>
+#if H_PGTABLE_RANGE > (USER_VSID_RANGE * (TASK_SIZE_USER64 / TASK_CONTEXT_SIZE))
+#warning Limited user VSID range means pagetable space is wasted
+#endif
+
#ifdef CONFIG_SPARSEMEM_VMEMMAP
/*
* vmemmap is the starting address of the virtual address space where
@@ -320,7 +324,7 @@ void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr,
if (!is_kernel_addr(addr)) {
ssize = user_segment_size(addr);
- vsid = get_vsid(mm->context.id, addr, ssize);
+ vsid = get_user_vsid(&mm->context, addr, ssize);
WARN_ON(vsid == 0);
} else {
vsid = get_kernel_vsid(addr, mmu_kernel_ssize);