Commit baf1ed24b27d ("powerpc/mm: Remove empty hash__ functions")
removed some empty hash MMU flushing routines, but got a bit overeager
and also removed the call to hash__tlb_flush() from tlb_flush().
In regular use this doesn't lead to any noticable breakage, which is a
little concerning. Presumably there are flushes happening via other
paths such as arch_leave_lazy_mmu_mode(), and/or a bit of luck.
Fix it by reinstating the call to hash__tlb_flush().
Fixes: baf1ed24b27d ("powerpc/mm: Remove empty hash__ functions")
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
---
arch/powerpc/include/asm/book3s/64/tlbflush.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush.h
b/arch/powerpc/include/asm/book3s/64/tlbflush.h
index dd39313242b4..d5cd16270c5d 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush.h
@@ -97,6 +97,8 @@ static inline void tlb_flush(struct mmu_gather *tlb)
{
if (radix_enabled())
radix__tlb_flush(tlb);
+
+ return hash__tlb_flush(tlb);
}
#ifdef CONFIG_SMP
--
2.39.1
