On Wed, 17 Jul 2013, Dave Jones wrote:
> On Wed, Jul 17, 2013 at 05:58:13PM -0700, Hugh Dickins wrote:
> > On Wed, 17 Jul 2013, Dave Hansen wrote:
> > > On 07/17/2013 02:09 PM, Andrew Morton wrote:
> > > > lock_page() is a pretty commonly called function, and I assume quite a
> > > > lot of
On Wed, 17 Jul 2013, Dave Jones wrote:
On Wed, Jul 17, 2013 at 05:58:13PM -0700, Hugh Dickins wrote:
On Wed, 17 Jul 2013, Dave Hansen wrote:
On 07/17/2013 02:09 PM, Andrew Morton wrote:
lock_page() is a pretty commonly called function, and I assume quite a
lot of people run with
On Wed, Jul 17, 2013 at 05:58:13PM -0700, Hugh Dickins wrote:
> On Wed, 17 Jul 2013, Dave Hansen wrote:
> > On 07/17/2013 02:09 PM, Andrew Morton wrote:
> > > lock_page() is a pretty commonly called function, and I assume quite a
> > > lot of people run with CONFIG_DEBUG_VM=y.
> > >
> > >
On Wed, 17 Jul 2013, Dave Hansen wrote:
> On 07/17/2013 02:09 PM, Andrew Morton wrote:
> > lock_page() is a pretty commonly called function, and I assume quite a
> > lot of people run with CONFIG_DEBUG_VM=y.
> >
> > Is the overhead added by this patch really worthwhile?
>
> I always thought of
On 07/17/2013 02:09 PM, Andrew Morton wrote:
> lock_page() is a pretty commonly called function, and I assume quite a
> lot of people run with CONFIG_DEBUG_VM=y.
>
> Is the overhead added by this patch really worthwhile?
I always thought of it as a developer-only thing. I don't think any of
the
Andrew Morton wrote:
> On Mon, 15 Jul 2013 13:47:51 +0300 "Kirill A. Shutemov"
> wrote:
>
> > From: "Kirill A. Shutemov"
> >
> > Locking head page means locking entire compound page.
> > If we try to lock tail page, something went wrong.
> >
> > ..
> >
> > --- a/mm/filemap.c
> > +++
On Mon, 15 Jul 2013 13:47:51 +0300 "Kirill A. Shutemov"
wrote:
> From: "Kirill A. Shutemov"
>
> Locking head page means locking entire compound page.
> If we try to lock tail page, something went wrong.
>
> ..
>
> --- a/mm/filemap.c
> +++ b/mm/filemap.c
> @@ -639,6 +639,7 @@ void
On Mon, 15 Jul 2013 13:47:51 +0300 Kirill A. Shutemov
kirill.shute...@linux.intel.com wrote:
From: Kirill A. Shutemov kirill.shute...@linux.intel.com
Locking head page means locking entire compound page.
If we try to lock tail page, something went wrong.
..
--- a/mm/filemap.c
+++
Andrew Morton wrote:
On Mon, 15 Jul 2013 13:47:51 +0300 Kirill A. Shutemov
kirill.shute...@linux.intel.com wrote:
From: Kirill A. Shutemov kirill.shute...@linux.intel.com
Locking head page means locking entire compound page.
If we try to lock tail page, something went wrong.
..
On 07/17/2013 02:09 PM, Andrew Morton wrote:
lock_page() is a pretty commonly called function, and I assume quite a
lot of people run with CONFIG_DEBUG_VM=y.
Is the overhead added by this patch really worthwhile?
I always thought of it as a developer-only thing. I don't think any of
the big
On Wed, 17 Jul 2013, Dave Hansen wrote:
On 07/17/2013 02:09 PM, Andrew Morton wrote:
lock_page() is a pretty commonly called function, and I assume quite a
lot of people run with CONFIG_DEBUG_VM=y.
Is the overhead added by this patch really worthwhile?
I always thought of it as a
On Wed, Jul 17, 2013 at 05:58:13PM -0700, Hugh Dickins wrote:
On Wed, 17 Jul 2013, Dave Hansen wrote:
On 07/17/2013 02:09 PM, Andrew Morton wrote:
lock_page() is a pretty commonly called function, and I assume quite a
lot of people run with CONFIG_DEBUG_VM=y.
Is the overhead
From: "Kirill A. Shutemov"
Locking head page means locking entire compound page.
If we try to lock tail page, something went wrong.
Signed-off-by: Kirill A. Shutemov
Acked-by: Dave Hansen
---
mm/filemap.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/mm/filemap.c b/mm/filemap.c
index
From: Kirill A. Shutemov kirill.shute...@linux.intel.com
Locking head page means locking entire compound page.
If we try to lock tail page, something went wrong.
Signed-off-by: Kirill A. Shutemov kirill.shute...@linux.intel.com
Acked-by: Dave Hansen dave.han...@linux.intel.com
---
mm/filemap.c
From: "Kirill A. Shutemov"
Locking head page means locking entire compound page.
If we try to lock tail page, something went wrong.
Signed-off-by: Kirill A. Shutemov
Acked-by: Dave Hansen
---
mm/filemap.c |2 ++
1 file changed, 2 insertions(+)
diff --git a/mm/filemap.c b/mm/filemap.c
From: Kirill A. Shutemov kirill.shute...@linux.intel.com
Locking head page means locking entire compound page.
If we try to lock tail page, something went wrong.
Signed-off-by: Kirill A. Shutemov kirill.shute...@linux.intel.com
Acked-by: Dave Hansen dave.han...@linux.intel.com
---
mm/filemap.c
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