linux-kernel - [PATCH 05/17] asm-generic/tlb: Rename HAVE_RCU_TABLE_NO

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Message-Id: <20191211122955.940455408@infradead.org>
Date:   Wed, 11 Dec 2019 13:07:18 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Will Deacon <will@...nel.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nick Piggin <npiggin@...il.com>,
        Peter Zijlstra <peterz@...radead.org>
Cc:     linux-arch@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Rich Felker <dalias@...c.org>,
        "David S. Miller" <davem@...emloft.net>,
        Helge Deller <deller@....de>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Paul Burton <paulburton@...nel.org>,
        Tony Luck <tony.luck@...el.com>,
        Richard Henderson <rth@...ddle.net>,
        Nick Hu <nickhu@...estech.com>,
        Paul Walmsley <paul.walmsley@...ive.com>
Subject: [PATCH 05/17] asm-generic/tlb: Rename HAVE_RCU_TABLE_NO_INVALIDATE

Towards a more consistent naming scheme.

Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
 arch/Kconfig              |    3 ++-
 arch/powerpc/Kconfig      |    2 +-
 arch/sparc/Kconfig        |    2 +-
 include/asm-generic/tlb.h |    2 +-
 mm/mmu_gather.c           |    2 +-
 5 files changed, 6 insertions(+), 5 deletions(-)

--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -396,8 +396,9 @@ config HAVE_ARCH_JUMP_LABEL_RELATIVE
 config MMU_GATHER_RCU_TABLE_FREE
 	bool
 
-config HAVE_RCU_TABLE_NO_INVALIDATE
+config MMU_GATHER_NO_TABLE_INVALIDATE
 	bool
+	depends on MMU_GATHER_RCU_TABLE_FREE
 
 config HAVE_MMU_GATHER_PAGE_SIZE
 	bool
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -223,7 +223,7 @@ config PPC
 	select HAVE_PERF_REGS
 	select HAVE_PERF_USER_STACK_DUMP
 	select MMU_GATHER_RCU_TABLE_FREE		if SMP
-	select HAVE_RCU_TABLE_NO_INVALIDATE	if MMU_GATHER_RCU_TABLE_FREE
+	select MMU_GATHER_NO_TABLE_INVALIDATE	if MMU_GATHER_RCU_TABLE_FREE
 	select HAVE_MMU_GATHER_PAGE_SIZE
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select HAVE_RELIABLE_STACKTRACE		if PPC_BOOK3S_64 && CPU_LITTLE_ENDIAN
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -65,7 +65,7 @@ config SPARC64
 	select HAVE_KRETPROBES
 	select HAVE_KPROBES
 	select MMU_GATHER_RCU_TABLE_FREE if SMP
-	select HAVE_RCU_TABLE_NO_INVALIDATE if MMU_GATHER_RCU_TABLE_FREE
+	select MMU_GATHER_NO_TABLE_INVALIDATE if MMU_GATHER_RCU_TABLE_FREE
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	select HAVE_DYNAMIC_FTRACE
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -137,7 +137,7 @@
  *  When used, an architecture is expected to provide __tlb_remove_table()
  *  which does the actual freeing of these pages.
  *
- *  HAVE_RCU_TABLE_NO_INVALIDATE
+ *  MMU_GATHER_NO_TABLE_INVALIDATE
  *
  *  This makes MMU_GATHER_RCU_TABLE_FREE avoid calling tlb_flush_mmu_tlbonly() before
  *  freeing the page-table pages. This can be avoided if you use
--- a/mm/mmu_gather.c
+++ b/mm/mmu_gather.c
@@ -102,7 +102,7 @@ bool __tlb_remove_page_size(struct mmu_g
  */
 static inline void tlb_table_invalidate(struct mmu_gather *tlb)
 {
-#ifndef CONFIG_HAVE_RCU_TABLE_NO_INVALIDATE
+#ifndef CONFIG_MMU_GATHER_NO_TABLE_INVALIDATE
 	/*
 	 * Invalidate page-table caches used by hardware walkers. Then we still
 	 * need to RCU-sched wait while freeing the pages because software