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| author | Kirill Tkhai <tkhai@yandex.ru> | 2013-08-02 19:23:18 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-13 18:14:29 -0700 |
| commit | 1e0a3f6f4660aca6578d768038972cd12727f64d (patch) | |
| tree | d1d36b2a07de8a5a1a97ac1cadefc177bc907470 | |
| parent | 47da75cd1eccef5e203c326bcf74a70701d4f158 (diff) | |
| download | lwn-1e0a3f6f4660aca6578d768038972cd12727f64d.tar.gz lwn-1e0a3f6f4660aca6578d768038972cd12727f64d.zip | |
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 <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/sparc/kernel/ktlb.S | 3 |
1 files changed, 1 insertions, 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) |