The patch titled
Subject: mem-soft-dirty: Reshuffle CONFIG_ options to be more Arch-friendly
has been added to the -mm tree. Its filename is
mm-soft-dirty-bits-for-user-memory-changes-tracking-fix.patch
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------------------------------------------------------
From: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
Subject: mem-soft-dirty: Reshuffle CONFIG_ options to be more Arch-friendly
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>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/Kconfig | 3 +++
arch/x86/Kconfig | 1 +
arch/x86/include/asm/pgtable.h | 2 --
include/asm-generic/pgtable.h | 2 +-
mm/Kconfig | 2 +-
5 files changed, 6 insertions(+), 4 deletions(-)
diff -puN arch/Kconfig~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix arch/Kconfig
--- a/arch/Kconfig~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix
+++ a/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 -puN arch/x86/Kconfig~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix arch/x86/Kconfig
--- a/arch/x86/Kconfig~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix
+++ a/arch/x86/Kconfig
@@ -102,6 +102,7 @@ config X86
select HAVE_ARCH_SECCOMP_FILTER
select BUILDTIME_EXTABLE_SORT
select GENERIC_CMOS_UPDATE
+ select HAVE_ARCH_SOFT_DIRTY
select CLOCKSOURCE_WATCHDOG
select GENERIC_CLOCKEVENTS
select ARCH_CLOCKSOURCE_DATA if X86_64
diff -puN arch/x86/include/asm/pgtable.h~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix arch/x86/include/asm/pgtable.h
--- a/arch/x86/include/asm/pgtable.h~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix
+++ a/arch/x86/include/asm/pgtable.h
@@ -294,8 +294,6 @@ static inline pmd_t pmd_mknotpresent(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 -puN include/asm-generic/pgtable.h~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix include/asm-generic/pgtable.h
--- a/include/asm-generic/pgtable.h~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix
+++ a/include/asm-generic/pgtable.h
@@ -396,7 +396,7 @@ static inline void ptep_modify_prot_comm
#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 -puN mm/Kconfig~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix mm/Kconfig
--- a/mm/Kconfig~mm-soft-dirty-bits-for-user-memory-changes-tracking-fix
+++ a/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
_
Patches currently in -mm which might be from xemul@xxxxxxxxxxxxx are
linux-next.patch
clear_refs-sanitize-accepted-commands-declaration.patch
clear_refs-sanitize-accepted-commands-declaration-fix.patch
clear_refs-introduce-private-struct-for-mm_walk.patch
pagemap-introduce-pagemap_entry_t-without-pmshift-bits.patch
pagemap-introduce-the-proc-pid-pagemap2-file.patch
mm-soft-dirty-bits-for-user-memory-changes-tracking.patch
mm-soft-dirty-bits-for-user-memory-changes-tracking-fix.patch
selftest-add-simple-test-for-soft-dirty-bit.patch
ptrace-add-ability-to-retrieve-signals-without-removing-from-a-queue-v4.patch
selftest-add-a-test-case-for-ptrace_peeksiginfo.patch
kernel-sysc-make-prctlpr_set_mm-generally-available.patch
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