Commit-ID: c683c37cd13246941924c48f6c6a9863425e0cec
Gitweb: https://git.kernel.org/tip/c683c37cd13246941924c48f6c6a9863425e0cec
Author: Dan Williams <dan.j.willi...@intel.com>
AuthorDate: Tue, 4 Dec 2018 13:37:06 -0800
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Wed, 5 Dec 2018 09:03:05 +0100
generic/pgtable: Make {pmd, pud}_same() unconditionally available
In preparation for {pmd,pud}_same() to be used outside of transparent
huge page code paths, make them unconditionally available. This enables
them to be used in the definition of a new family of
set_{pte,pmd,pud,p4d,pgd}_safe() helpers.
Signed-off-by: Dan Williams <dan.j.willi...@intel.com>
Acked-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Borislav Petkov <b...@alien8.de>
Cc: Dave Hansen <dave.han...@linux.intel.com>
Cc: H. Peter Anvin <h...@zytor.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Rik van Riel <r...@surriel.com>
Cc: Sebastian Andrzej Siewior <bige...@linutronix.de>
Cc: Thomas Gleixner <t...@linutronix.de>
Link:
http://lkml.kernel.org/r/154395942644.32119.10238934183949418128.st...@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
include/asm-generic/pgtable.h | 14 --------------
1 file changed, 14 deletions(-)
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 359fb935ded6..eea50ef8b8cd 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -375,7 +375,6 @@ static inline int pte_unused(pte_t pte)
#endif
#ifndef __HAVE_ARCH_PMD_SAME
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
{
return pmd_val(pmd_a) == pmd_val(pmd_b);
@@ -385,19 +384,6 @@ static inline int pud_same(pud_t pud_a, pud_t pud_b)
{
return pud_val(pud_a) == pud_val(pud_b);
}
-#else /* CONFIG_TRANSPARENT_HUGEPAGE */
-static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
-{
- BUILD_BUG();
- return 0;
-}
-
-static inline int pud_same(pud_t pud_a, pud_t pud_b)
-{
- BUILD_BUG();
- return 0;
-}
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#endif
#ifndef __HAVE_ARCH_DO_SWAP_PAGE
