From: Peter Zijlstra <peterz@infradead.org>
To: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Cc: linux-mm@kvack.org, Davidlohr Bueso <dave@stgolabs.net>,
akpm@linux-foundation.org, Jan Kara <jack@suse.cz>,
"Kirill A . Shutemov" <kirill@shutemov.name>,
Michal Hocko <mhocko@kernel.org>,
Mel Gorman <mgorman@techsingularity.net>,
haren@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com,
khandual@linux.vnet.ibm.com, Paul.McKenney@us.ibm.com,
linux-kernel@vger.kernel.org
Subject: Re: [RFC 2/4] Deactivate mmap_sem assert
Date: Wed, 19 Apr 2017 14:30:51 +0200 [thread overview]
Message-ID: <20170419123051.GA5730@worktop> (raw)
In-Reply-To: <582009a3f9459de3d8def1e76db46e815ea6153c.1492595897.git.ldufour@linux.vnet.ibm.com>
On Wed, Apr 19, 2017 at 02:18:25PM +0200, Laurent Dufour wrote:
> When mmap_sem will be moved to a range lock, some assertion done in
> the code are no more valid, like the one ensuring mmap_sem is held.
>
Why are they no longer valid?
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WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <peterz@infradead.org>
To: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Cc: linux-mm@kvack.org, Davidlohr Bueso <dave@stgolabs.net>,
akpm@linux-foundation.org, Jan Kara <jack@suse.cz>,
"Kirill A . Shutemov" <kirill@shutemov.name>,
Michal Hocko <mhocko@kernel.org>,
Mel Gorman <mgorman@techsingularity.net>,
haren@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com,
khandual@linux.vnet.ibm.com, Paul.McKenney@us.ibm.com,
linux-kernel@vger.kernel.org
Subject: Re: [RFC 2/4] Deactivate mmap_sem assert
Date: Wed, 19 Apr 2017 14:30:51 +0200 [thread overview]
Message-ID: <20170419123051.GA5730@worktop> (raw)
In-Reply-To: <582009a3f9459de3d8def1e76db46e815ea6153c.1492595897.git.ldufour@linux.vnet.ibm.com>
On Wed, Apr 19, 2017 at 02:18:25PM +0200, Laurent Dufour wrote:
> When mmap_sem will be moved to a range lock, some assertion done in
> the code are no more valid, like the one ensuring mmap_sem is held.
>
Why are they no longer valid?
next prev parent reply other threads:[~2017-04-19 12:30 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-19 12:18 [RFC 0/4] Replace mmap_sem by a range lock Laurent Dufour
2017-04-19 12:18 ` Laurent Dufour
2017-04-19 12:18 ` [RFC 1/4] Add additional range parameter to GUP() and handle_page_fault() Laurent Dufour
2017-04-19 12:18 ` Laurent Dufour
2017-04-19 12:18 ` [RFC 2/4] Deactivate mmap_sem assert Laurent Dufour
2017-04-19 12:18 ` Laurent Dufour
2017-04-19 12:30 ` Peter Zijlstra [this message]
2017-04-19 12:30 ` Peter Zijlstra
2017-04-19 13:45 ` Laurent Dufour
2017-04-19 13:45 ` Laurent Dufour
2017-04-19 13:54 ` Peter Zijlstra
2017-04-19 13:54 ` Peter Zijlstra
2017-04-19 12:18 ` [RFC 3/4] Remove nest locking operation with mmap_sem Laurent Dufour
2017-04-19 12:18 ` Laurent Dufour
2017-04-19 12:18 ` [RFC 4/4] Change mmap_sem to range lock Laurent Dufour
2017-04-20 13:33 ` [RFC 0/4] Replace mmap_sem by a " Matthew Wilcox
2017-04-20 13:33 ` Matthew Wilcox
2017-04-20 14:39 ` Laurent Dufour
2017-04-20 14:39 ` Laurent Dufour
2017-04-20 14:28 ` [RFC 4/4] Change mmap_sem to " Laurent Dufour
2017-04-20 14:28 ` Laurent Dufour
2017-04-20 14:37 ` Peter Zijlstra
2017-04-20 14:37 ` Peter Zijlstra
2017-04-20 14:42 ` Laurent Dufour
2017-04-20 14:42 ` Laurent Dufour
2017-04-20 23:36 ` Andi Kleen
2017-04-20 23:36 ` Andi Kleen
2017-04-24 15:47 ` Laurent Dufour
2017-04-24 15:47 ` Laurent Dufour
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