As Stephen Rothwell pointed out, config options, that depend on
architecture support, are better to be wrapped into a select +
depends on scheme.
Do this for CONFIG_MEM_SOFT_DIRTY, as it currently works only
for X86.
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
diff --git a/arch/Kconfig b/arch/Kconfig
index 1455579..71c06ab 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -365,6 +365,9 @@ config HAVE_IRQ_TIME_ACCOUNTING
config HAVE_ARCH_TRANSPARENT_HUGEPAGE
bool
+config HAVE_ARCH_SOFT_DIRTY
+ bool
+
config HAVE_MOD_ARCH_SPECIFIC
bool
help
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 70c0f3d..81c0843 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -120,6 +120,7 @@ config X86
select OLD_SIGSUSPEND3 if X86_32 || IA32_EMULATION
select OLD_SIGACTION if X86_32
select COMPAT_OLD_SIGACTION if IA32_EMULATION
+ select HAVE_ARCH_SOFT_DIRTY
config INSTRUCTION_DECODER
def_bool y
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index eb97470..ebf9373 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -294,8 +294,6 @@ static inline pmd_t pmd_mknotpresent(pmd_t pmd)
return pmd_clear_flags(pmd, _PAGE_PRESENT);
}
-#define __HAVE_SOFT_DIRTY
-
static inline int pte_soft_dirty(pte_t pte)
{
return pte_flags(pte) & _PAGE_SOFT_DIRTY;
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index d74bdd2..a2ca78f 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -386,7 +386,7 @@ static inline void ptep_modify_prot_commit(struct mm_struct *mm,
#define arch_start_context_switch(prev) do {} while (0)
#endif
-#ifndef __HAVE_SOFT_DIRTY
+#ifndef CONFIG_HAVE_ARCH_SOFT_DIRTY
static inline int pte_soft_dirty(pte_t pte)
{
return 0;
diff --git a/mm/Kconfig b/mm/Kconfig
index 147689e..7deac66 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -474,7 +474,7 @@ config FRONTSWAP
config MEM_SOFT_DIRTY
bool "Track memory changes"
- depends on CHECKPOINT_RESTORE && X86
+ depends on CHECKPOINT_RESTORE && HAVE_ARCH_SOFT_DIRTY
select PROC_PAGE_MONITOR
help
This option enables memory changes tracking by introducing a
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