mm, gup: fix typo in gup_p4d_range()

gup_p4d_range() should call gup_pud_range(), not itself. [ This was not noticed on x86: this is the HAVE_GENERIC_RCU_GUP code used by arm[64] and powerpc - Linus ] Fixes: c2febaf ("mm: convert generic code to 5-level paging") Signed-off-by: Kirill A. Shutemov <[email protected]> Reported-by: Chris Packham <[email protected]> Reported-by: Anton Blanchard <[email protected]> Acked-by: Michal Hocko <[email protected]> Acked-by: Mark Rutland <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
ambv · Mar 13, 2017 · ce70df0 · ce70df0
1 parent 4495c08
commit ce70df0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mm/gup.c b/mm/gup.c
@@ -1455,7 +1455,7 @@ static int gup_p4d_range(pgd_t pgd, unsigned long addr, unsigned long end,
 			if (!gup_huge_pd(__hugepd(p4d_val(p4d)), addr,
 					 P4D_SHIFT, next, write, pages, nr))
 				return 0;
-		} else if (!gup_p4d_range(p4d, addr, next, write, pages, nr))
+		} else if (!gup_pud_range(p4d, addr, next, write, pages, nr))
 			return 0;
 	} while (p4dp++, addr = next, addr != end);