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-rw-r--r--arch/ia64/mm/tlb.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index d52ec4e83409..8caf42471f0d 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -168,7 +168,10 @@ setup_ptcg_sem(int max_purges, int nptcg_from)
static int firstcpu = 1;
if (toolatetochangeptcgsem) {
- BUG_ON(max_purges < nptcg);
+ if (nptcg_from == NPTCG_FROM_PAL && max_purges == 0)
+ BUG_ON(1 < nptcg);
+ else
+ BUG_ON(max_purges < nptcg);
return;
}