mm: gup: remove unneed local variable orig_refs

Remove unneed local variable orig_refs since refs is unchanged now.

Link: https://lkml.kernel.org/r/20210807093620.21347-3-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/gup.c b/mm/gup.c
index 2532ec8..82074e8 100644 (file)
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -117,8 +117,6 @@ __maybe_unused struct page *try_grab_compound_head(struct page *page,
        if (flags & FOLL_GET)
                return try_get_compound_head(page, refs);
        else if (flags & FOLL_PIN) {
-               int orig_refs = refs;
-
                /*
                 * Can't do FOLL_LONGTERM + FOLL_PIN gup fast path if not in a
                 * right zone, so fail and let the caller fall back to the slow
@@ -150,7 +148,7 @@ __maybe_unused struct page *try_grab_compound_head(struct page *page,
                        page_ref_add(page, refs * (GUP_PIN_COUNTING_BIAS - 1));
 
                mod_node_page_state(page_pgdat(page), NR_FOLL_PIN_ACQUIRED,
-                                   orig_refs);
+                                   refs);
 
                return page;
        }