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[PATCHv4,0/3] mm/gup: fix omission of check on FOLL_LONGTERM in gup fast path

Message ID 1560422702-11403-1-git-send-email-kernelfans@gmail.com (mailing list archive)
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Series mm/gup: fix omission of check on FOLL_LONGTERM in gup fast path | expand

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Pingfan Liu June 13, 2019, 10:44 a.m. UTC 
These three patches have no dependency of each other, but related with the same purpose
to improve get_user_page_fast(), patch [2/3]. Put them together.

v3->v4:
  Place the check on FOLL_LONGTERM in gup_pte_range() instead of get_user_page_fast()

Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: linux-kernel@vger.kernel.org

Pingfan Liu (3):
  mm/gup: rename nr as nr_pinned in get_user_pages_fast()
  mm/gup: fix omission of check on FOLL_LONGTERM in gup fast path
  mm/gup_benchemark: add LONGTERM_BENCHMARK test in gup fast path

 mm/gup.c                                   | 46 +++++++++++++++++++++++-------
 mm/gup_benchmark.c                         | 11 +++++--
 tools/testing/selftests/vm/gup_benchmark.c | 10 +++++--
 3 files changed, 52 insertions(+), 15 deletions(-)