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 0/2] use mmu gather logic for tlb flush in mremap
Date: Mon, 28 Nov 2016 16:37:15 +0800 [thread overview]
Message-ID: <20161128083715.GA21738@aaronlu.sh.intel.com> (raw)
In-Reply-To: <c160bc18-7c1b-2d54-8af1-7c5bfcbcefe8@intel.com>
On Fri, Nov 18, 2016 at 10:48:20AM +0800, Aaron Lu wrote:
> On 11/18/2016 01:53 AM, Linus Torvalds wrote:
> > I'm not entirely happy with the force_flush vs need_flush games, and I
> > really think this code should be updated to use the same "struct
> > mmu_gather" that we use for the other TLB flushing cases (no need for
> > the page freeing batching, but the tlb_flush_mmu_tlbonly() logic
> > should be the same).
>
> I see.
>
> >
> > But I guess that's a bigger change, so that wouldn't be approriate for
> > rc5 or stable back-porting anyway. But it would be lovely if somebody
> > could look at that. Hint hint.
>
> I'll work on it, thanks for the suggestion.
So here it is. I'm not quite sure if I've done the right thing in patch
2/2, i.e. should I just use tlb_flush_mmu or export tlb_flush_mmu_tlbonly
and then use it in mremap.c. Please take a look and let me know what you
think, thanks!
Regards,
Aaron
next prev parent reply other threads:[~2016-11-28 8:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <026b73f6-ca1d-e7bb-766c-4aaeb7071ce6@intel.com>
2016-11-17 7:45 ` [PATCH] mremap: fix race between mremap() and page cleanning Aaron Lu
[not found] ` <CA+55aFzHfpZckv8ck19fZSFK+3TmR5eF=BsDzhwVGKrbyEBjEw@mail.gmail.com>
[not found] ` <c160bc18-7c1b-2d54-8af1-7c5bfcbcefe8@intel.com>
2016-11-28 8:37 ` Aaron Lu [this message]
2016-11-28 8:39 ` [PATCH 1/2] tlb: export tlb_flush_mmu_tlbonly Aaron Lu
2016-11-28 8:40 ` [PATCH 2/2] mremap: use mmu gather logic for tlb flush in 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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