From: Ralph Campbell <rcampbell@nvidia.com>
To: <linux-mm@kvack.org>, <kvm-ppc@vger.kernel.org>,
<linux-kselftest@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: Jerome Glisse <jglisse@redhat.com>,
John Hubbard <jhubbard@nvidia.com>,
Christoph Hellwig <hch@lst.de>,
Jason Gunthorpe <jgg@mellanox.com>,
"Bharata B Rao" <bharata@linux.ibm.com>,
Shuah Khan <shuah@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Ralph Campbell <rcampbell@nvidia.com>
Subject: [PATCH v2 0/2] mm/migrate: optimize migrate_vma_setup() for holes
Date: Fri, 10 Jul 2020 12:48:38 -0700 [thread overview]
Message-ID: <20200710194840.7602-1-rcampbell@nvidia.com> (raw)
A simple optimization for migrate_vma_*() when the source vma is not an
anonymous vma and a new test case to exercise it.
This is based on linux-mm and is for Andrew Morton's tree.
Changes in v2:
Do the same check for vma_is_anonymous() for pte_none().
Don't increment cpages if the page isn't migrating.
Ralph Campbell (2):
mm/migrate: optimize migrate_vma_setup() for holes
mm/migrate: add migrate-shared test for migrate_vma_*()
mm/migrate.c | 16 ++++++++++--
tools/testing/selftests/vm/hmm-tests.c | 35 ++++++++++++++++++++++++++
2 files changed, 49 insertions(+), 2 deletions(-)
--
2.20.1
next reply other threads:[~2020-07-10 19:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-10 19:48 Ralph Campbell [this message]
2020-07-10 19:48 ` [PATCH v2 1/2] " Ralph Campbell
2020-07-10 19:48 ` [PATCH v2 2/2] mm/migrate: add migrate-shared test for migrate_vma_*() Ralph Campbell
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