The patch titled
mm: systems without MMU do not need pte_mkwrite()
has been added to the -mm tree. Its filename is
mm-systems-without-mmu-do-not-need-pte_mkwrite.patch
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------------------------------------------------------
Subject: mm: systems without MMU do not need pte_mkwrite()
From: Michal Simek <monstr@xxxxxxxxx>
14fd403f214 ("thp: export maybe_mkwrite") break systems without MMU.
Error log:
CC arch/microblaze/mm/init.o
In file included from include/linux/mman.h:14,
from arch/microblaze/mm/consistent.c:24:
include/linux/mm.h: In function 'maybe_mkwrite':
include/linux/mm.h:482: error: implicit declaration of function 'pte_mkwrite'
include/linux/mm.h:482: error: incompatible types in assignment
Signed-off-by: Michal Simek <monstr@xxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 2 ++
1 file changed, 2 insertions(+)
diff -puN include/linux/mm.h~mm-systems-without-mmu-do-not-need-pte_mkwrite include/linux/mm.h
--- a/include/linux/mm.h~mm-systems-without-mmu-do-not-need-pte_mkwrite
+++ a/include/linux/mm.h
@@ -470,6 +470,7 @@ static inline void set_compound_order(st
page[1].lru.prev = (void *)order;
}
+#ifdef CONFIG_MMU
/*
* Do pte_mkwrite, but only if the vma says VM_WRITE. We do this when
* servicing faults for write access. In the normal case, do always want
@@ -482,6 +483,7 @@ static inline pte_t maybe_mkwrite(pte_t
pte = pte_mkwrite(pte);
return pte;
}
+#endif
/*
* Multiple processes may "see" the same page. E.g. for untouched
_
Patches currently in -mm which might be from monstr@xxxxxxxxx are
mm-systems-without-mmu-do-not-need-pte_mkwrite.patch
llist-add-kconfig-option-arch_have_nmi_safe_cmpxchg.patch
llist-lib-add-lock-less-null-terminated-single-list.patch
llist-irq_work-use-llist-in-irq_work.patch
llist-net-rds-replace-xlist-in-net-rds-xlisth-with-llist.patch
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