From: Mounesh Badiger <mounesh.b@gmail.com>
To: linux-mm@kvack.org
Subject: Migration/remap question for hugee pages of 2MB
Date: Tue, 21 Jan 2025 13:48:43 +0530 [thread overview]
Message-ID: <CAOGU1pwhf1u26AC5d6xTNJJT0uPv-4AVoL8Q7vSc+sAr+Y-bug@mail.gmail.com> (raw)
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Hi,
Can linux-mm group confirm, if huge pages of size 2MB cannot be migrated or
remapped when user-space uses them for IO with the bypassing kernel? We
need to VA->PA intact once it is mapped.
We want to reserve huge pages and map them using hugetlbfs into the
userspace. Use /proc/<pid>/pagemap to get VA->PA mapping and use PA for
IO.
--
Mounesh Badiger
Support for education
Visit*: www.vidyaposhak.org <http://www.vidyaposhak.org/> *
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next reply other threads:[~2025-01-21 8:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-21 8:18 Mounesh Badiger [this message]
2025-01-21 8:32 ` David Hildenbrand
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