| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.10 21/71] MIPS: tlbex: Fix a missing statement for HUGETLB | Date | Mon, 15 Sep 2014 12:26:19 -0700 |
| |
3.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Huacai Chen <chenhc@lemote.com>
commit 8393c524a25609a30129e4a8975cf3b91f6c16a5 upstream.
In commit 2c8c53e28f1 (MIPS: Optimize TLB handlers for Octeon CPUs) build_r4000_tlb_refill_handler() is modified. But it doesn't compatible with the original code in HUGETLB case. Because there is a copy & paste error and one line of code is missing. It is very easy to produce a bug with LTP's hugemmap05 test.
Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Binbin Zhou <zhoubb@lemote.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/7496/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/mips/mm/tlbex.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -1329,6 +1329,7 @@ static void __cpuinit build_r4000_tlb_re } #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT uasm_l_tlb_huge_update(&l, p); + UASM_i_LW(&p, K0, 0, K1); build_huge_update_entries(&p, htlb_info.huge_pte, K1); build_huge_tlb_write_entry(&p, &l, &r, K0, tlb_random, htlb_info.restore_scratch);
|