Include FOLL_FAST_ONLY in the list of flags to *not* WARN() on, in internal_get_user_pages_fast().
Cc: Chris Wilson <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: David Airlie <[email protected]> Cc: Jani Nikula <[email protected]> Cc: "Joonas Lahtinen" <[email protected]> Cc: Matthew Auld <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Rodrigo Vivi <[email protected]> Cc: Souptick Joarder <[email protected]> Cc: Tvrtko Ursulin <[email protected]> Signed-off-by: John Hubbard <[email protected]> --- Hi Andrew, Chris, Andrew: This is a fixup that applies to today's (20200521) linux-next. In that tree, this fixes up: commit dfb8dfe80808 ("mm/gup: refactor and de-duplicate gup_fast() code") Chris: I'd like to request another CI run for the drm/i915 changes, so for that, would you prefer that I post a v2 of the series [1], or is it easier for you to just apply this patch here, on top of [2]? [1] https://lore.kernel.org/r/[email protected] [2] https://lore.kernel.org/r/[email protected] thanks, John Hubbard NVIDIA mm/gup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/gup.c b/mm/gup.c index dd8895f2fafa1..ada6aa79576dc 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -2724,7 +2724,8 @@ static int internal_get_user_pages_fast(unsigned long start, int nr_pages, 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; -- 2.26.2
