As explained in the newly added documentation for FOLL_PIN and
FOLL_LONGTERM, in every case where vaddr_pin_pages() is required,
FOLL_PIN must be set. That reason, plus a desire to keep FOLL_PIN
an internal (to get_user_pages() and follow_page()) detail, is why
vaddr_pin_pages() sets FOLL_PIN.
FOL
On 8/16/19 7:36 PM, John Hubbard wrote:
On 8/16/19 7:24 PM, jhubb...@nvidia.com wrote:
From: John Hubbard
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On 8/16/19 7:24 PM, jhubb...@nvidia.com wrote:
> From: John Hubbard
> DKIM-Signature: v a a-sha256; claxed/relaxed; d idia.com; s;
> t66008674; bhMai0va6k/z2enpQJ4Nfvbj5WByFxGAO1JwdIBbXioh
> PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer:
>In-Reply-To:Referen
From: John Hubbard
DKIM-Signature: v a*
- * In the CMA case: longterm pins in a CMA region would unnecessarily fragment
- * that region. And so CMA attempts to migrate the page before pinning when
+ * In the CMA case: long term pins in a CMA region would unnecessarily fragment
+ * that region.
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