+ mm-gup-refactor-and-de-duplicate-gup_fast-code-fix.patch added to -mm tree

+ mm-gup-refactor-and-de-duplicate-gup_fast-code-fix.patch added to -mm tree

[akpm]

The patch titled
     Subject: mm/gup: fixup gup.c for "mm/gup: refactor and de-duplicate gup_fast() code"
has been added to the -mm tree.  Its filename is
     mm-gup-refactor-and-de-duplicate-gup_fast-code-fix.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/mm-gup-refactor-and-de-duplicate-gup_fast-code-fix.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/mm-gup-refactor-and-de-duplicate-gup_fast-code-fix.patch

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------------------------------------------------------
From: John Hubbard <jhubbard@nvidia.com>
Subject: mm/gup: fixup gup.c for "mm/gup: refactor and de-duplicate gup_fast() code"

Include FOLL_FAST_ONLY in the list of flags to *not* WARN()
on, in internal_get_user_pages_fast().

Link: http://lkml.kernel.org/r/20200521233841.1279742-1-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: "Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/gup.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/mm/gup.c~mm-gup-refactor-and-de-duplicate-gup_fast-code-fix
+++ a/mm/gup.c
@@ -2724,7 +2724,8 @@ static int internal_get_user_pages_fast(
 	int nr_pinned = 0, ret = 0;
 
 	if (WARN_ON_ONCE(gup_flags & ~(FOLL_WRITE | FOLL_LONGTERM |
-				       FOLL_FORCE | FOLL_PIN | FOLL_GET)))
+				       FOLL_FORCE | FOLL_PIN | FOLL_GET |
+				       FOLL_FAST_ONLY)))
 		return -EINVAL;
 
 	start = untagged_addr(start) & PAGE_MASK;
_

Patches currently in -mm which might be from jhubbard@nvidia.com are

rapidio-fix-an-error-in-get_user_pages_fast-error-handling.patch
selftests-vm-gitignore-add-mremap_dontunmap.patch
selftests-vm-write_to_hugetlbfsc-fix-unused-variable-warning.patch
mm-gup-introduce-pin_user_pages_unlocked.patch
ivtv-convert-get_user_pages-pin_user_pages.patch
mm-gup-move-__get_user_pages_fast-down-a-few-lines-in-gupc.patch
mm-gup-refactor-and-de-duplicate-gup_fast-code.patch
mm-gup-introduce-pin_user_pages_fast_only.patch
drm-i915-convert-get_user_pages-pin_user_pages.patch
khugepaged-add-self-test-fix-3.patch
rapidio-convert-get_user_pages-pin_user_pages.patch
mm-gup-refactor-and-de-duplicate-gup_fast-code-fix.patch