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| author | Nicholas Piggin <npiggin@gmail.com> | 2018-09-15 01:30:45 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-20 18:00:10 +0100 |
| commit | 87227faf46b25dc70ce50c9d05efa2157917c18a (patch) | |
| tree | cf22445d5c2138d4335799ce88b2f963b0af8379 /arch/powerpc/mm/slb.c | |
| parent | be0255db201fab9550cd807a1293d4ec722b6cd5 (diff) | |
| download | linux-rt-87227faf46b25dc70ce50c9d05efa2157917c18a.tar.gz | |
powerpc/64s/hash: Fix stab_rr off by one initialization
[ Upstream commit 09b4438db13fa83b6219aee5993711a2aa2a0c64 ]
This causes SLB alloation to start 1 beyond the start of the SLB.
There is no real problem because after it wraps it stats behaving
properly, it's just surprisig to see when looking at SLB traces.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/powerpc/mm/slb.c')
| -rw-r--r-- | arch/powerpc/mm/slb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c index 6d9bf014b3e7..2502fe3bfb54 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c @@ -315,7 +315,7 @@ void slb_initialize(void) #endif } - get_paca()->stab_rr = SLB_NUM_BOLTED; + get_paca()->stab_rr = SLB_NUM_BOLTED - 1; lflags = SLB_VSID_KERNEL | linear_llp; vflags = SLB_VSID_KERNEL | vmalloc_llp; |