From: Dave Hansen <dave.hansen@intel.com>
To: Mel Gorman <mgorman@suse.de>, Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>, Linux-MM <linux-mm@kvack.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Andi Kleen <andi@firstfloor.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/4] mm: Send a single IPI to TLB flush multiple pages when unmapping
Date: Wed, 15 Apr 2015 14:32:47 -0700 [thread overview]
Message-ID: <552ED8FF.8000109@intel.com> (raw)
In-Reply-To: <20150415212855.GI14842@suse.de>
On 04/15/2015 02:28 PM, Mel Gorman wrote:
> This is what I'm expecting i.e. clean->dirty transition is write-through
> to the PTE which is now unmapped and it traps. I'm assuming there is an
> architectural guarantee that it happens but could not find an explicit
> statement in the docs. I'm hoping Dave or Andi can check with the relevant
> people on my behalf.
The docs do look a bit ambiguous to me. I'm working on getting some
clarified language in there.
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WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <dave.hansen@intel.com>
To: Mel Gorman <mgorman@suse.de>, Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>, Linux-MM <linux-mm@kvack.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Andi Kleen <andi@firstfloor.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 2/4] mm: Send a single IPI to TLB flush multiple pages when unmapping
Date: Wed, 15 Apr 2015 14:32:47 -0700 [thread overview]
Message-ID: <552ED8FF.8000109@intel.com> (raw)
In-Reply-To: <20150415212855.GI14842@suse.de>
On 04/15/2015 02:28 PM, Mel Gorman wrote:
> This is what I'm expecting i.e. clean->dirty transition is write-through
> to the PTE which is now unmapped and it traps. I'm assuming there is an
> architectural guarantee that it happens but could not find an explicit
> statement in the docs. I'm hoping Dave or Andi can check with the relevant
> people on my behalf.
The docs do look a bit ambiguous to me. I'm working on getting some
clarified language in there.
next prev parent reply other threads:[~2015-04-15 21:32 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-15 10:42 [RFC PATCH 0/4] TLB flush multiple pages with a single IPI Mel Gorman
2015-04-15 10:42 ` Mel Gorman
2015-04-15 10:42 ` [PATCH 1/4] x86, mm: Trace when an IPI is about to be sent Mel Gorman
2015-04-15 10:42 ` Mel Gorman
2015-04-15 10:42 ` [PATCH 2/4] mm: Send a single IPI to TLB flush multiple pages when unmapping Mel Gorman
2015-04-15 10:42 ` Mel Gorman
2015-04-15 21:03 ` Rik van Riel
2015-04-15 21:03 ` Rik van Riel
2015-04-15 21:16 ` Hugh Dickins
2015-04-15 21:16 ` Hugh Dickins
2015-04-15 21:28 ` Mel Gorman
2015-04-15 21:28 ` Mel Gorman
2015-04-15 21:32 ` Dave Hansen [this message]
2015-04-15 21:32 ` Dave Hansen
2015-04-16 6:38 ` Minchan Kim
2015-04-16 6:38 ` Minchan Kim
2015-04-16 8:07 ` Mel Gorman
2015-04-16 8:07 ` Mel Gorman
2015-04-16 8:29 ` Minchan Kim
2015-04-16 8:29 ` Minchan Kim
2015-04-16 9:19 ` Mel Gorman
2015-04-16 9:19 ` Mel Gorman
2015-04-16 23:30 ` Minchan Kim
2015-04-16 23:30 ` Minchan Kim
2015-04-15 22:20 ` Andi Kleen
2015-04-15 22:20 ` Andi Kleen
2015-04-15 22:53 ` Mel Gorman
2015-04-15 22:53 ` Mel Gorman
2015-04-15 10:42 ` [PATCH 3/4] mm: Gather more PFNs before sending a TLB to flush unmapped pages Mel Gorman
2015-04-15 10:42 ` Mel Gorman
2015-04-15 11:42 ` Peter Zijlstra
2015-04-15 11:42 ` Peter Zijlstra
2015-04-15 12:15 ` Mel Gorman
2015-04-15 12:15 ` Mel Gorman
2015-04-15 12:24 ` Peter Zijlstra
2015-04-15 12:24 ` Peter Zijlstra
2015-04-15 12:56 ` Mel Gorman
2015-04-15 12:56 ` Mel Gorman
2015-04-15 10:42 ` [PATCH 4/4] mm: migrate: Batch TLB flushing when unmapping pages for migration Mel Gorman
2015-04-15 10:42 ` Mel Gorman
2015-04-15 21:06 ` Hugh Dickins
2015-04-15 21:06 ` Hugh Dickins
2015-04-15 21:44 ` Mel Gorman
2015-04-15 21:44 ` Mel Gorman
2015-04-15 23:50 ` Hugh Dickins
2015-04-15 23:50 ` Hugh Dickins
-- strict thread matches above, loose matches on Subject: below --
2015-04-16 10:22 [RFC PATCH 0/4] TLB flush multiple pages with a single IPI v2 Mel Gorman
2015-04-16 10:22 ` [PATCH 2/4] mm: Send a single IPI to TLB flush multiple pages when unmapping Mel Gorman
2015-04-16 10:22 ` Mel Gorman
2015-04-16 15:52 ` Rik van Riel
2015-04-16 15:52 ` Rik van Riel
2015-04-16 19:21 ` Hugh Dickins
2015-04-16 19:21 ` Hugh Dickins
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