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authorDavid Hildenbrand <david@redhat.com>2022-05-10 03:20:43 +0200
committerakpm <akpm@linux-foundation.org>2022-05-10 03:20:43 +0200
commit40f2bbf71161fa9195c7869004290003af152375 (patch)
treee161adac3d091687d715f163583366231d34e7c4 /mm/userfaultfd.c
parentmm/rmap: pass rmap flags to hugepage_add_anon_rmap() (diff)
downloadlinux-40f2bbf71161fa9195c7869004290003af152375.tar.xz
linux-40f2bbf71161fa9195c7869004290003af152375.zip
mm/rmap: drop "compound" parameter from page_add_new_anon_rmap()
New anonymous pages are always mapped natively: only THP/khugepaged code maps a new compound anonymous page and passes "true". Otherwise, we're just dealing with simple, non-compound pages. Let's give the interface clearer semantics and document these. Remove the PageTransCompound() sanity check from page_add_new_anon_rmap(). Link: https://lkml.kernel.org/r/20220428083441.37290-9-david@redhat.com Signed-off-by: David Hildenbrand <david@redhat.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: David Rientjes <rientjes@google.com> Cc: Don Dutile <ddutile@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jan Kara <jack@suse.cz> Cc: Jann Horn <jannh@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Khalid Aziz <khalid.aziz@oracle.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Liang Zhang <zhangliang5@huawei.com> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Nadav Amit <namit@vmware.com> Cc: Oded Gabbay <oded.gabbay@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Pedro Demarchi Gomes <pedrodemargomes@gmail.com> Cc: Peter Xu <peterx@redhat.com> Cc: Rik van Riel <riel@surriel.com> Cc: Roman Gushchin <guro@fb.com> Cc: Shakeel Butt <shakeelb@google.com> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to '')
-rw-r--r--mm/userfaultfd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index e9bb6db002aa..dae25d985d15 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -104,7 +104,7 @@ int mfill_atomic_install_pte(struct mm_struct *dst_mm, pmd_t *dst_pmd,
lru_cache_add(page);
page_add_file_rmap(page, dst_vma, false);
} else {
- page_add_new_anon_rmap(page, dst_vma, dst_addr, false);
+ page_add_new_anon_rmap(page, dst_vma, dst_addr);
lru_cache_add_inactive_or_unevictable(page, dst_vma);
}