[v6,16/18] asm-generic/tlb: Remove HAVE_GENERIC_MMU_GATHER

Message ID	20190219103233.810881730@infradead.org (mailing list archive)
State	New, archived
Headers	show Return-Path: <owner-linux-mm@kvack.org> Received-SPF: pass (google.com: best guess record for domain of peterz@infradead.org designates 2001:8b0:10b:1231::1 as permitted sender) client-ip=2001:8b0:10b:1231::1; Message-Id: <20190219103233.810881730@infradead.org> User-Agent: quilt/0.65 Date: Tue, 19 Feb 2019 11:32:04 +0100 From: Peter Zijlstra <peterz@infradead.org> To: will.deacon@arm.com, aneesh.kumar@linux.vnet.ibm.com, akpm@linux-foundation.org, npiggin@gmail.com Cc: linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, peterz@infradead.org, linux@armlinux.org.uk, heiko.carstens@de.ibm.com, riel@surriel.com Subject: [PATCH v6 16/18] asm-generic/tlb: Remove HAVE_GENERIC_MMU_GATHER References: <20190219103148.192029670@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	generic mmu_gather patches \| expand [v6,00/18] generic mmu_gather patches [v6,01/18] asm-generic/tlb: Provide a comment [v6,02/18] asm-generic/tlb: Provide HAVE_MMU_GATHER_PAGE_SIZE [v6,03/18] asm-generic/tlb: Provide generic VIPT cache flush [v6,04/18] asm-generic/tlb: Provide generic tlb_flush() based on flush_tlb_range() [v6,05/18] asm-generic/tlb: Provide generic tlb_flush() based on flush_tlb_mm() [v6,06/18] asm-generic/tlb: Conditionally provide tlb_migrate_finish() [v6,07/18] asm-generic/tlb: Invert HAVE_RCU_TABLE_INVALIDATE [v6,08/18] arm/tlb: Convert to generic mmu_gather [v6,09/18] ia64/tlb: Conver to generic mmu_gather [v6,10/18] sh/tlb: Convert SH to generic mmu_gather [v6,11/18] um/tlb: Convert to generic mmu_gather [v6,12/18] arch/tlb: Clean up simple architectures [v6,13/18] asm-generic/tlb: Introduce HAVE_MMU_GATHER_NO_GATHER [v6,14/18] s390/tlb: convert to generic mmu_gather [v6,15/18] asm-generic/tlb: Remove arch_tlb*_mmu() [v6,16/18] asm-generic/tlb: Remove HAVE_GENERIC_MMU_GATHER [v6,17/18] asm-generic/tlb: Remove tlb_flush_mmu_free() [v6,18/18] asm-generic/tlb: Remove tlb_table_flush()

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20190219103233.810881730@infradead.org (mailing list archive)

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 client-ip=2001:8b0:10b:1231::1;
Message-Id: <20190219103233.810881730@infradead.org>
User-Agent: quilt/0.65
Date: Tue, 19 Feb 2019 11:32:04 +0100
From: Peter Zijlstra <peterz@infradead.org>
To: will.deacon@arm.com,
 aneesh.kumar@linux.vnet.ibm.com,
 akpm@linux-foundation.org,
 npiggin@gmail.com
Cc: linux-arch@vger.kernel.org,
 linux-mm@kvack.org,
 linux-kernel@vger.kernel.org,
 peterz@infradead.org,
 linux@armlinux.org.uk,
 heiko.carstens@de.ibm.com,
 riel@surriel.com
Subject: [PATCH v6 16/18] asm-generic/tlb: Remove HAVE_GENERIC_MMU_GATHER
References: <20190219103148.192029670@infradead.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Sender: owner-linux-mm@kvack.org
Precedence: bulk

Series

generic mmu_gather patches | expand

Commit Message

Peter Zijlstra Feb. 19, 2019, 10:32 a.m. UTC

Since all architectures are now using it, it is redundant.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 include/asm-generic/tlb.h |    1 -
 mm/mmu_gather.c           |    4 ----
 2 files changed, 5 deletions(-)

--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -142,7 +142,6 @@ 
  *
  *  Use this if your architecture lacks an efficient flush_tlb_range().
  */
-#define HAVE_GENERIC_MMU_GATHER
 
 #ifdef CONFIG_HAVE_RCU_TABLE_FREE
 /*
--- a/mm/mmu_gather.c
+++ b/mm/mmu_gather.c
@@ -11,8 +11,6 @@ 
 #include <asm/pgalloc.h>
 #include <asm/tlb.h>
 
-#ifdef HAVE_GENERIC_MMU_GATHER
-
 #ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER
 
 static bool tlb_next_batch(struct mmu_gather *tlb)
@@ -109,8 +107,6 @@  void tlb_flush_mmu(struct mmu_gather *tl
 	tlb_flush_mmu_free(tlb);
 }
 
-#endif /* HAVE_GENERIC_MMU_GATHER */
-
 #ifdef CONFIG_HAVE_RCU_TABLE_FREE
 
 /*

[v6,16/18] asm-generic/tlb: Remove HAVE_GENERIC_MMU_GATHER

Commit Message

Patch