Fwd: alloc_pages_bulk()

Sorry for resending. I misremembered the linux-mm address.

Begin forwarded message:

From: Chuck Lever <redacted>
Subject: alloc_pages_bulk()
Date: February 8, 2021 at 10:42:07 AM EST
To: "mgorman@suse.de" <mgorman@suse.de>, "brouer@redhat.com" <redacted>
Cc: "linux-mm@vger.kernel.org" <redacted>, Linux NFS Mailing List <redacted>

Hi-

[ please Cc: me, I'm not subscribed to linux-mm ]

We've been discussing how NFSD can more efficiently refill its
receive buffers (currently alloc_page() in a loop; see
net/sunrpc/svc_xprt.c::svc_alloc_arg()).

Neil Brown pointed me to this old thread:

https://lore.kernel.org/lkml/20170109163518.6001-1-mgorman@techsingularity.net/ (local)

We see that many of the prerequisites are in v5.11-rc, but
alloc_page_bulk() is not. I tried forward-porting 4/4 in that
series, but enough internal APIs have changed since 2017 that
the patch does not come close to applying and compiling.

I'm wondering:

a) is there a newer version of that work?

b) if not, does there exist a preferred API in 5.11 for bulk
page allocation?

Many thanks for any guidance!

--
Chuck Lever

--
Chuck Lever