On Tue, 2013-02-12 at 09:13 -0800, Tejun Heo wrote:
> Hello,
>
> On Tue, Feb 12, 2013 at 07:07:20PM +0200, Imre Deak wrote:
> > It's the one implemented by sg_miter_{start,stop} in scatterlist.c. It
> > also iterates through a scatterlist a page at a time, but it also kmaps
> > these pages. Since
On Tue, 2013-02-12 at 09:13 -0800, Tejun Heo wrote:
Hello,
On Tue, Feb 12, 2013 at 07:07:20PM +0200, Imre Deak wrote:
It's the one implemented by sg_miter_{start,stop} in scatterlist.c. It
also iterates through a scatterlist a page at a time, but it also kmaps
these pages. Since in our
On Tue, 12 Feb 2013 19:07:20 +0200
Imre Deak wrote:
> > So, exactly how big is this thing, and how do we know it's better this
> > way than if we were to uninline some/all of the helpers?
>
> I admit I only hoped compiler optimization would keep the inlined parts
> at a minimum, but now I
Hello,
On Tue, Feb 12, 2013 at 07:07:20PM +0200, Imre Deak wrote:
> It's the one implemented by sg_miter_{start,stop} in scatterlist.c. It
> also iterates through a scatterlist a page at a time, but it also kmaps
> these pages. Since in our use case we don't need to map the pages we
> needed a
On Mon, 2013-02-11 at 12:54 -0800, Andrew Morton wrote:
> On Mon, 11 Feb 2013 20:50:04 +0200
> Imre Deak wrote:
>
> > Add an iterator to walk through a scatter list a page at a time starting
> > at a specific page offset. As opposed to the mapping iterator this is
>
> What is "the mapping
On Mon, 2013-02-11 at 12:54 -0800, Andrew Morton wrote:
On Mon, 11 Feb 2013 20:50:04 +0200
Imre Deak imre.d...@intel.com wrote:
Add an iterator to walk through a scatter list a page at a time starting
at a specific page offset. As opposed to the mapping iterator this is
What is the
Hello,
On Tue, Feb 12, 2013 at 07:07:20PM +0200, Imre Deak wrote:
It's the one implemented by sg_miter_{start,stop} in scatterlist.c. It
also iterates through a scatterlist a page at a time, but it also kmaps
these pages. Since in our use case we don't need to map the pages we
needed a
On Tue, 12 Feb 2013 19:07:20 +0200
Imre Deak imre.d...@intel.com wrote:
So, exactly how big is this thing, and how do we know it's better this
way than if we were to uninline some/all of the helpers?
I admit I only hoped compiler optimization would keep the inlined parts
at a minimum, but
On Mon, 11 Feb 2013 20:50:04 +0200
Imre Deak wrote:
> Add an iterator to walk through a scatter list a page at a time starting
> at a specific page offset. As opposed to the mapping iterator this is
What is "the mapping iterator"?
> meant to be small, performing well even in simple loops like
Add an iterator to walk through a scatter list a page at a time starting
at a specific page offset. As opposed to the mapping iterator this is
meant to be small, performing well even in simple loops like collecting
all pages on the scatterlist into an array or setting up an iommu table
based on
Add an iterator to walk through a scatter list a page at a time starting
at a specific page offset. As opposed to the mapping iterator this is
meant to be small, performing well even in simple loops like collecting
all pages on the scatterlist into an array or setting up an iommu table
based on
On Mon, 11 Feb 2013 20:50:04 +0200
Imre Deak imre.d...@intel.com wrote:
Add an iterator to walk through a scatter list a page at a time starting
at a specific page offset. As opposed to the mapping iterator this is
What is the mapping iterator?
meant to be small, performing well even in
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