Re: [PATCH v2 0/2] btrfs: allocate page arrays more efficiently

[Sweet Tea Dorminy]

On 3/30/22 12:58, David Sterba wrote:
> On Wed, Mar 30, 2022 at 12:44:05PM -0400, Sweet Tea Dorminy wrote:
> > In several places, btrfs allocates an array of pages, one at a time.  In
> > addition to duplicating code, the mm subsystem provides a helper to
> > allocate multiple pages at once into an array which is suited for our
> > usecase. In the fast path, the batching can result in better allocation
> > decisions and less locking. This changeset first adjusts the users to
> > call a common array-of-pages allocation function, then adjusts that
> > common function to use the batch page allocator.
> >
> > v2: moved new helper to extent_io.[ch]. Fixed title format.
>
> It does not address comments from
> https://lore.kernel.org/linux-btrfs/20220328230909.GW2237@xxxxxxxxxxxxx
I apologize, I completely missed the inline comments even though I 
thought something was missing and reread it a couple times... v3 soon.