From 84c041cc9b2eb6305732e32f283d9fac2b0e8b6a Mon Sep 17 00:00:00 2001 From: Kirill Tkhai Date: Fri, 2 Aug 2013 19:23:18 +0400 Subject: [PATCH] sparc64: Fix ITLB handler of null page [ Upstream commit 1c2696cdaad84580545a2e9c0879ff597880b1a9 ] 1)Use kvmap_itlb_longpath instead of kvmap_dtlb_longpath. 2)Handle page #0 only, don't handle page #1: bleu -> blu (KERNBASE is 0x400000, so #1 does not exist too. But everything is possible in the future. Fix to not to have problems later.) 3)Remove unused kvmap_itlb_nonlinear. Signed-off-by: Kirill Tkhai CC: David Miller Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- arch/sparc/kernel/ktlb.S | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S index 0746e5e32b37..fde5a419cf27 100644 --- a/arch/sparc/kernel/ktlb.S +++ b/arch/sparc/kernel/ktlb.S @@ -25,11 +25,10 @@ kvmap_itlb: */ kvmap_itlb_4v: -kvmap_itlb_nonlinear: /* Catch kernel NULL pointer calls. */ sethi %hi(PAGE_SIZE), %g5 cmp %g4, %g5 - bleu,pn %xcc, kvmap_dtlb_longpath + blu,pn %xcc, kvmap_itlb_longpath nop KERN_TSB_LOOKUP_TL1(%g4, %g6, %g5, %g1, %g2, %g3, kvmap_itlb_load) -- 2.34.1