From: Dave Hansen <dave.hansen@intel.com>
To: Colin Cross <ccross@android.com>
Cc: linux-kernel@vger.kernel.org,
Kyungmin Park <kmpark@infradead.org>,
Christoph Hellwig <hch@infradead.org>,
John Stultz <john.stultz@linaro.org>,
Rob Landley <rob@landley.net>, Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Cyrill Gorcunov <gorcunov@openvz.org>,
David Rientjes <rientjes@google.com>,
Davidlohr Bueso <dave@gnu.org>, Kees Cook <keescook@chromium.org>,
Al Viro <viro@zeniv.linux.org.uk>,
Hugh Dickins <hughd@google.com>, Mel Gorman <mgorman@suse.de>,
Michel Lespinasse <walken@google.com>,
Rik van Riel <riel@redhat.com>,
Konstantin Khlebnikov <khlebnikov@openvz.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Rusty Russell <rusty@rustcorp.com.au>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Oleg Nesterov <oleg@redhat.com>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Michal
Subject: Re: [PATCH] mm: add sys_madvise2 and MADV_NAME to name vmas
Date: Wed, 10 Jul 2013 16:08:36 -0700 [thread overview]
Message-ID: <51DDE974.6060200@intel.com> (raw)
In-Reply-To: <1372901537-31033-1-git-send-email-ccross@android.com>
On 07/03/2013 06:31 PM, Colin Cross wrote:
> @@ -289,6 +291,7 @@ struct vm_area_struct {
> #ifdef CONFIG_NUMA
> struct mempolicy *vm_policy; /* NUMA policy for the VMA */
> #endif
> + struct vma_name *vm_name;
> };
You could probably get rid of the extra pointer by unioning this with
vm_file. They should not ever get used together. We would, however,
have to transition away from checking vma->vm_file for "is this vma
file-backed"? We are out of VM_* flag space which is a bummer.
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WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <dave.hansen@intel.com>
To: Colin Cross <ccross@android.com>
Cc: linux-kernel@vger.kernel.org,
Kyungmin Park <kmpark@infradead.org>,
Christoph Hellwig <hch@infradead.org>,
John Stultz <john.stultz@linaro.org>,
Rob Landley <rob@landley.net>, Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Cyrill Gorcunov <gorcunov@openvz.org>,
David Rientjes <rientjes@google.com>,
Davidlohr Bueso <dave@gnu.org>, Kees Cook <keescook@chromium.org>,
Al Viro <viro@zeniv.linux.org.uk>,
Hugh Dickins <hughd@google.com>, Mel Gorman <mgorman@suse.de>,
Michel Lespinasse <walken@google.com>,
Rik van Riel <riel@redhat.com>,
Konstantin Khlebnikov <khlebnikov@openvz.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Rusty Russell <rusty@rustcorp.com.au>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Oleg Nesterov <oleg@redhat.com>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Michal Hocko <mhocko@suse.cz>,
Anton Vorontsov <anton.vorontsov@linaro.org>,
Pekka Enberg <penberg@kernel.org>, Shaohua Li <shli@fusionio.com>,
Sasha Levin <sasha.levin@oracle.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Ingo Molnar <mingo@kernel.org>,
open@kvack.org, list@kvack.org,
DOCUMENTATION
<linux-doc@vger.kernel.org>open@kvack.orglist@kvack.org,
MEMORY MANAGEMENT <linux-mm@kvack.org>,
"open list:GENERIC INCLUDE/A..." <linux-arch@vger.kernel.org>
Subject: Re: [PATCH] mm: add sys_madvise2 and MADV_NAME to name vmas
Date: Wed, 10 Jul 2013 16:08:36 -0700 [thread overview]
Message-ID: <51DDE974.6060200@intel.com> (raw)
In-Reply-To: <1372901537-31033-1-git-send-email-ccross@android.com>
On 07/03/2013 06:31 PM, Colin Cross wrote:
> @@ -289,6 +291,7 @@ struct vm_area_struct {
> #ifdef CONFIG_NUMA
> struct mempolicy *vm_policy; /* NUMA policy for the VMA */
> #endif
> + struct vma_name *vm_name;
> };
You could probably get rid of the extra pointer by unioning this with
vm_file. They should not ever get used together. We would, however,
have to transition away from checking vma->vm_file for "is this vma
file-backed"? We are out of VM_* flag space which is a bummer.
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2013-07-10 23:08 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-04 1:31 [PATCH] mm: add sys_madvise2 and MADV_NAME to name vmas Colin Cross
2013-07-04 1:31 ` Colin Cross
2013-07-04 4:54 ` Eric W. Biederman
2013-07-04 4:54 ` Eric W. Biederman
2013-07-04 6:32 ` Colin Cross
2013-07-04 6:32 ` Colin Cross
2013-07-05 16:52 ` Oleg Nesterov
2013-07-05 16:52 ` Oleg Nesterov
2013-07-06 6:33 ` Pekka Enberg
2013-07-06 6:33 ` Pekka Enberg
2013-07-06 11:53 ` Eric W. Biederman
2013-07-06 11:53 ` Eric W. Biederman
2013-07-07 18:35 ` Colin Cross
2013-07-07 18:35 ` Colin Cross
2013-07-14 1:38 ` Simon Jeons
2013-07-04 8:56 ` Peter Zijlstra
2013-07-04 8:56 ` Peter Zijlstra
2013-07-05 20:25 ` Colin Cross
2013-07-05 20:25 ` Colin Cross
2013-07-10 23:20 ` Dave Hansen
2013-07-10 23:20 ` Dave Hansen
2013-07-04 20:22 ` Oleg Nesterov
2013-07-04 20:22 ` Oleg Nesterov
2013-07-05 19:40 ` Colin Cross
2013-07-05 19:40 ` Colin Cross
2013-07-08 18:04 ` [PATCH 0/1] mm: mempolicy: (Was: add sys_madvise2 and MADV_NAME to name vmas) Oleg Nesterov
2013-07-08 18:04 ` Oleg Nesterov
2013-07-08 18:05 ` [PATCH 1/1] mm: mempolicy: fix mbind_range() && vma_adjust() interaction Oleg Nesterov
2013-07-08 18:05 ` Oleg Nesterov
2013-07-08 22:29 ` KOSAKI Motohiro
2013-07-08 22:29 ` KOSAKI Motohiro
2013-07-09 15:28 ` Oleg Nesterov
2013-07-09 15:28 ` Oleg Nesterov
2013-07-09 19:43 ` Oleg Nesterov
2013-07-09 19:43 ` Oleg Nesterov
2013-07-10 2:49 ` KOSAKI Motohiro
2013-07-10 2:49 ` KOSAKI Motohiro
2013-07-09 21:56 ` Andrew Morton
2013-07-09 21:56 ` Andrew Morton
2013-07-10 15:45 ` Oleg Nesterov
2013-07-10 15:45 ` Oleg Nesterov
2013-07-24 9:40 ` [PATCH] mm: add sys_madvise2 and MADV_NAME to name vmas Jan Glauber
2013-07-24 9:40 ` Jan Glauber
2013-07-24 20:05 ` Colin Cross
2013-07-24 20:05 ` Colin Cross
2013-07-10 23:08 ` Dave Hansen [this message]
2013-07-10 23:08 ` Dave Hansen
[not found] ` <CAMbhsRTio2mS=azWTxSdRdaZJRRf5FfMNoQUZmrFjkB7kv9LSQ@mail.gmail.com>
2013-07-10 23:38 ` Dave Hansen
2013-07-10 23:38 ` Dave Hansen
[not found] ` <CAMbhsRTs45QE1ze6mvdiL2QYKD0dHjXoRk7o1h2Y_rYP80ckDg@mail.gmail.com>
2013-07-11 0:19 ` Dave Hansen
2013-07-11 0:19 ` Dave Hansen
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