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authorYang Shi <shy828301@gmail.com>2021-04-29 22:55:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-30 11:20:37 -0700
commit4066c119483af8e86a75447fd35be1d2553d370f (patch)
treec321643fffb89bbecd3bedc41644a5bb37bf3e13 /Documentation/vm/transhuge.rst
parent1d4b0166e36334c3f32686a336bb25dd904fce2b (diff)
mm: gup: remove FOLL_SPLIT
Since commit 5a52c9df62b4 ("uprobe: use FOLL_SPLIT_PMD instead of FOLL_SPLIT") and commit ba925fa35057 ("s390/gmap: improve THP splitting") FOLL_SPLIT has not been used anymore. Remove the dead code. Link: https://lkml.kernel.org/r/20210330203900.9222-1-shy828301@gmail.com Signed-off-by: Yang Shi <shy828301@gmail.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/vm/transhuge.rst')
-rw-r--r--Documentation/vm/transhuge.rst5
1 files changed, 0 insertions, 5 deletions
diff --git a/Documentation/vm/transhuge.rst b/Documentation/vm/transhuge.rst
index 0ed23e59abe5..216db1d67d04 100644
--- a/Documentation/vm/transhuge.rst
+++ b/Documentation/vm/transhuge.rst
@@ -53,11 +53,6 @@ prevent the page from being split by anyone.
of handling GUP on hugetlbfs will also work fine on transparent
hugepage backed mappings.
-In case you can't handle compound pages if they're returned by
-follow_page, the FOLL_SPLIT bit can be specified as a parameter to
-follow_page, so that it will split the hugepages before returning
-them.
-
Graceful fallback
=================