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From: Aaron Lu <aaron.lu@intel.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux Memory Management List <linux-mm@kvack.org>,
	Dave Hansen <dave.hansen@intel.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	Huang Ying <ying.huang@intel.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] tlb: export tlb_flush_mmu_tlbonly
Date: Mon, 28 Nov 2016 16:39:31 +0800	[thread overview]
Message-ID: <20161128083931.GB21738@aaronlu.sh.intel.com> (raw)
In-Reply-To: <20161128083715.GA21738@aaronlu.sh.intel.com>

The mmu gather logic for tlb flush will be used in mremap case so export
this function.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
---
 include/asm-generic/tlb.h | 1 +
 mm/memory.c               | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index c6d667187608..0f1861db935c 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -119,6 +119,7 @@ struct mmu_gather {
 
 void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end);
 void tlb_flush_mmu(struct mmu_gather *tlb);
+void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb);
 void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start,
 							unsigned long end);
 extern bool __tlb_remove_page_size(struct mmu_gather *tlb, struct page *page,
diff --git a/mm/memory.c b/mm/memory.c
index e18c57bdc75c..130d82f7d8a2 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -238,7 +238,7 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long
 	__tlb_reset_range(tlb);
 }
 
-static void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb)
+void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb)
 {
 	if (!tlb->end)
 		return;
-- 
2.5.5

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  reply	other threads:[~2016-11-28  8:39 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-10  9:16 [PATCH] mremap: fix race between mremap() and page cleanning Aaron Lu
2016-11-17  7:45 ` Aaron Lu
2016-11-17 17:53 ` Linus Torvalds
2016-11-18  2:48   ` Aaron Lu
2016-11-28  8:37     ` [PATCH 0/2] use mmu gather logic for tlb flush in mremap Aaron Lu
2016-11-28  8:39       ` Aaron Lu [this message]
2016-11-28  8:40       ` [PATCH 2/2] mremap: " Aaron Lu
2016-11-28 17:15         ` Linus Torvalds
2016-11-29  2:57           ` [PATCH] mremap: move_ptes: check pte dirty after its removal Aaron Lu
2016-11-29  3:06             ` Linus Torvalds
2016-11-29  3:22               ` Aaron Lu
2016-11-29  5:27               ` [PATCH update] " Aaron Lu
2016-11-28 17:32         ` [PATCH 2/2] mremap: use mmu gather logic for tlb flush in mremap Dave Hansen
2016-11-28 17:42           ` Linus Torvalds

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