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Message-Id: <20191211122955.883347160@infradead.org>
Date: Wed, 11 Dec 2019 13:07:17 +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 04/17] asm-generic/tlb: Rename HAVE_RCU_TABLE_FREE
Towards a more consistent naming scheme.
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
---
arch/Kconfig | 2 +-
arch/arm/Kconfig | 2 +-
arch/arm/include/asm/tlb.h | 2 +-
arch/arm64/Kconfig | 2 +-
arch/powerpc/Kconfig | 4 ++--
arch/s390/Kconfig | 2 +-
arch/sparc/Kconfig | 4 ++--
arch/x86/Kconfig | 2 +-
arch/x86/include/asm/tlb.h | 4 ++--
include/asm-generic/tlb.h | 10 +++++-----
mm/gup.c | 2 +-
mm/mmu_gather.c | 8 ++++----
12 files changed, 22 insertions(+), 22 deletions(-)
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -393,7 +393,7 @@ config HAVE_ARCH_JUMP_LABEL
config HAVE_ARCH_JUMP_LABEL_RELATIVE
bool
-config HAVE_RCU_TABLE_FREE
+config MMU_GATHER_RCU_TABLE_FREE
bool
config HAVE_RCU_TABLE_NO_INVALIDATE
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -101,7 +101,7 @@ config ARM
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
- select HAVE_RCU_TABLE_FREE if SMP && ARM_LPAE
+ select MMU_GATHER_RCU_TABLE_FREE if SMP && ARM_LPAE
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RSEQ
select HAVE_STACKPROTECTOR
--- a/arch/arm/include/asm/tlb.h
+++ b/arch/arm/include/asm/tlb.h
@@ -37,7 +37,7 @@ static inline void __tlb_remove_table(vo
#include <asm-generic/tlb.h>
-#ifndef CONFIG_HAVE_RCU_TABLE_FREE
+#ifndef CONFIG_MMU_GATHER_RCU_TABLE_FREE
#define tlb_remove_table(tlb, entry) tlb_remove_page(tlb, entry)
#endif
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -161,7 +161,7 @@ config ARM64
select HAVE_PERF_USER_STACK_DUMP
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_FUNCTION_ARG_ACCESS_API
- select HAVE_RCU_TABLE_FREE
+ select MMU_GATHER_RCU_TABLE_FREE
select HAVE_RSEQ
select HAVE_STACKPROTECTOR
select HAVE_SYSCALL_TRACEPOINTS
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -222,8 +222,8 @@ config PPC
select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
- select HAVE_RCU_TABLE_FREE if SMP
- select HAVE_RCU_TABLE_NO_INVALIDATE if HAVE_RCU_TABLE_FREE
+ select MMU_GATHER_RCU_TABLE_FREE if SMP
+ select HAVE_RCU_TABLE_NO_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/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -168,7 +168,7 @@ config S390
select HAVE_OPROFILE
select HAVE_PCI
select HAVE_PERF_EVENTS
- select HAVE_RCU_TABLE_FREE
+ select MMU_GATHER_RCU_TABLE_FREE
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE
select HAVE_RSEQ
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -64,8 +64,8 @@ config SPARC64
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_KRETPROBES
select HAVE_KPROBES
- select HAVE_RCU_TABLE_FREE if SMP
- select HAVE_RCU_TABLE_NO_INVALIDATE if HAVE_RCU_TABLE_FREE
+ select MMU_GATHER_RCU_TABLE_FREE if SMP
+ select HAVE_RCU_TABLE_NO_INVALIDATE if MMU_GATHER_RCU_TABLE_FREE
select HAVE_MEMBLOCK_NODE_MAP
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select HAVE_DYNAMIC_FTRACE
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -200,7 +200,7 @@ config X86
select HAVE_PCI
select HAVE_PERF_REGS
select HAVE_PERF_USER_STACK_DUMP
- select HAVE_RCU_TABLE_FREE if PARAVIRT
+ select MMU_GATHER_RCU_TABLE_FREE if PARAVIRT
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RELIABLE_STACKTRACE if X86_64 && (UNWINDER_FRAME_POINTER || UNWINDER_ORC) && STACK_VALIDATION
select HAVE_FUNCTION_ARG_ACCESS_API
--- a/arch/x86/include/asm/tlb.h
+++ b/arch/x86/include/asm/tlb.h
@@ -29,8 +29,8 @@ static inline void tlb_flush(struct mmu_
* shootdown, enablement code for several hypervisors overrides
* .flush_tlb_others hook in pv_mmu_ops and implements it by issuing
* a hypercall. To keep software pagetable walkers safe in this case we
- * switch to RCU based table free (HAVE_RCU_TABLE_FREE). See the comment
- * below 'ifdef CONFIG_HAVE_RCU_TABLE_FREE' in include/asm-generic/tlb.h
+ * switch to RCU based table free (MMU_GATHER_RCU_TABLE_FREE). See the comment
+ * below 'ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE' in include/asm-generic/tlb.h
* for more details.
*/
static inline void __tlb_remove_table(void *table)
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -126,7 +126,7 @@
* This ensures we call tlb_flush() every time tlb_change_page_size() actually
* changes the size and provides mmu_gather::page_size to tlb_flush().
*
- * HAVE_RCU_TABLE_FREE
+ * MMU_GATHER_RCU_TABLE_FREE
*
* This provides tlb_remove_table(), to be used instead of tlb_remove_page()
* for page directores (__p*_free_tlb()). This provides separate freeing of
@@ -139,9 +139,9 @@
*
* HAVE_RCU_TABLE_NO_INVALIDATE
*
- * This makes HAVE_RCU_TABLE_FREE avoid calling tlb_flush_mmu_tlbonly() before
+ * 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
- * HAVE_RCU_TABLE_FREE and your architecture does _NOT_ use the Linux
+ * MMU_GATHER_RCU_TABLE_FREE and your architecture does _NOT_ use the Linux
* page-tables natively.
*
* MMU_GATHER_NO_RANGE
@@ -149,7 +149,7 @@
* Use this if your architecture lacks an efficient flush_tlb_range().
*/
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
+#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
/*
* Semi RCU freeing of the page directories.
*
@@ -227,7 +227,7 @@ extern bool __tlb_remove_page_size(struc
struct mmu_gather {
struct mm_struct *mm;
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
+#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
struct mmu_table_batch *batch;
#endif
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1729,7 +1729,7 @@ EXPORT_SYMBOL(get_user_pages_unlocked);
* Before activating this code, please be aware that the following assumptions
* are currently made:
*
- * *) Either HAVE_RCU_TABLE_FREE is enabled, and tlb_remove_table() is used to
+ * *) Either MMU_GATHER_RCU_TABLE_FREE is enabled, and tlb_remove_table() is used to
* free pages containing page tables or TLB flushing requires IPI broadcast.
*
* *) ptes can be read atomically by the architecture.
--- a/mm/mmu_gather.c
+++ b/mm/mmu_gather.c
@@ -91,7 +91,7 @@ bool __tlb_remove_page_size(struct mmu_g
#endif /* HAVE_MMU_GATHER_NO_GATHER */
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
+#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
/*
* See the comment near struct mmu_table_batch.
@@ -173,11 +173,11 @@ void tlb_remove_table(struct mmu_gather
tlb_table_flush(tlb);
}
-#endif /* CONFIG_HAVE_RCU_TABLE_FREE */
+#endif /* CONFIG_MMU_GATHER_RCU_TABLE_FREE */
static void tlb_flush_mmu_free(struct mmu_gather *tlb)
{
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
+#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
tlb_table_flush(tlb);
#endif
#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER
@@ -220,7 +220,7 @@ void tlb_gather_mmu(struct mmu_gather *t
tlb->batch_count = 0;
#endif
-#ifdef CONFIG_HAVE_RCU_TABLE_FREE
+#ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE
tlb->batch = NULL;
#endif
#ifdef CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
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