X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fmm%2Fhugetlbpage.c;h=cd2d82efe1cd15b1fe003b2eceee8bee33e0a072;hb=ccf27814a63fc122dc5980453a18847dc5d8429f;hp=9833fee493ec414be50c241153889d7ac4259402;hpb=008315e4c67cb0860ad27e31252081262b425998;p=karo-tx-linux.git

diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 9833fee493ec..cd2d82efe1cd 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -1030,10 +1030,6 @@ pte_t *__find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
 			/*
 			 * A hugepage collapse is captured by pmd_none, because
 			 * it mark the pmd none and do a hpte invalidate.
-			 *
-			 * We don't worry about pmd_trans_splitting here, The
-			 * caller if it needs to handle the splitting case
-			 * should check for that.
 			 */
 			if (pmd_none(pmd))
 				return NULL;
@@ -1071,7 +1067,7 @@ int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
 {
 	unsigned long mask;
 	unsigned long pte_end;
-	struct page *head, *page, *tail;
+	struct page *head, *page;
 	pte_t pte;
 	int refs;
 
@@ -1094,7 +1090,6 @@ int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
 	head = pte_page(pte);
 
 	page = head + ((addr & (sz-1)) >> PAGE_SHIFT);
-	tail = page;
 	do {
 		VM_BUG_ON(compound_head(page) != head);
 		pages[*nr] = page;
@@ -1116,15 +1111,5 @@ int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
 		return 0;
 	}
 
-	/*
-	 * Any tail page need their mapcount reference taken before we
-	 * return.
-	 */
-	while (refs--) {
-		if (PageTail(tail))
-			get_huge_page_tail(tail);
-		tail++;
-	}
-
 	return 1;
 }