This is a note to let you know that I've just added the patch titled
sparc64: Fix ITLB handler of null page
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sparc64-fix-itlb-handler-of-null-page.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 428d8e4747bdaa3dcbb09c9f13254ce001dcfa33 Mon Sep 17 00:00:00 2001
From: Kirill Tkhai <tkhai@xxxxxxxxx>
Date: Fri, 2 Aug 2013 19:23:18 +0400
Subject: sparc64: Fix ITLB handler of null page
From: Kirill Tkhai <tkhai@xxxxxxxxx>
[ 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 <tkhai@xxxxxxxxx>
CC: David Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/sparc/kernel/ktlb.S | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- 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)
Patches currently in stable-queue which might be from tkhai@xxxxxxxxx are
queue-3.4/sparc32-fix-exit-flag-passed-from-traced-sys_sigreturn.patch
queue-3.4/sparc64-fix-itlb-handler-of-null-page.patch
queue-3.4/sparc64-remove-rwsem-export-leftovers.patch
queue-3.4/sparc64-fix-not-sra-ed-o5-in-32-bit-traced-syscall.patch
queue-3.4/sparc64-fix-off-by-one-in-trampoline-tlb-mapping.patch
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