Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a602cc05f8fc849023e72e2857bd842f0104f648
Commit: a602cc05f8fc849023e72e2857bd842f0104f648
Parent: 123100cf4fff3e8ffa375df2c74c7f2cb29ab17a
Author: Hideo Saito <[EMAIL PROTECTED]>
AuthorDate: Thu Feb 14 14:45:08 2008 +0900
Committer: Paul Mundt <[EMAIL PROTECTED]>
CommitDate: Thu Feb 14 14:45:08 2008 +0900
sh: Fix multiple UTLB hit on UP SH-4.
This acts as a reversion of 1c6b2ca5e0939bf8b5d1a11f1646f25189ecd447 in
the case of UP SH-4, where we still have the risk of a multiple hit
between the slow and fast paths. As seen on SH7780.
Signed-off-by: Hideo Saito <[EMAIL PROTECTED]>
Signed-off-by: Paul Mundt <[EMAIL PROTECTED]>
---
arch/sh/mm/fault_32.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/sh/mm/fault_32.c b/arch/sh/mm/fault_32.c
index 4ef0a1f..d1fa275 100644
--- a/arch/sh/mm/fault_32.c
+++ b/arch/sh/mm/fault_32.c
@@ -299,6 +299,14 @@ asmlinkage int __kprobes __do_page_fault(struct pt_regs
*regs,
entry = pte_mkdirty(entry);
entry = pte_mkyoung(entry);
+#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_SMP)
+ /*
+ * ITLB is not affected by "ldtlb" instruction.
+ * So, we need to flush the entry by ourselves.
+ */
+ local_flush_tlb_one(get_asid(), address & PAGE_MASK);
+#endif
+
set_pte(pte, entry);
update_mmu_cache(NULL, address, entry);
-
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