Thread (1 message) 1 message, 1 author, 2020-01-16
STALE2411d

[PATCH AUTOSEL 4.14 129/371] powerpc/mm: Check secondary hash page table

From: Sasha Levin <sashal@kernel.org>
Date: 2020-01-16 18:29:23
Also in: lkml, stable
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Linus Torvalds

From: Rashmica Gupta <redacted>

[ Upstream commit 790845e2f12709d273d08ea7a2af7c2593689519 ]

We were always calling base_hpte_find() with primary = true,
even when we wanted to check the secondary table.

mpe: I broke this when refactoring Rashmica's original patch.

Fixes: 1515ab932156 ("powerpc/mm: Dump hash table")
Signed-off-by: Rashmica Gupta <redacted>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/mm/dump_hashpagetable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/mm/dump_hashpagetable.c b/arch/powerpc/mm/dump_hashpagetable.c
index 5c4c93dcff19..f666d74f05f5 100644
--- a/arch/powerpc/mm/dump_hashpagetable.c
+++ b/arch/powerpc/mm/dump_hashpagetable.c
@@ -343,7 +343,7 @@ static unsigned long hpte_find(struct pg_state *st, unsigned long ea, int psize)
 
 	/* Look in secondary table */
 	if (slot == -1)
-		slot = base_hpte_find(ea, psize, true, &v, &r);
+		slot = base_hpte_find(ea, psize, false, &v, &r);
 
 	/* No entry found */
 	if (slot == -1)
-- 
2.20.1
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