From c4d5b6eef2581dd893bea4edb374e480e5a90ce6 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 28 Jan 2022 18:30:06 +0100 Subject: m68k: mm: Remove check for VM_IO to fix deferred I/O When an application accesses a mapped frame buffer backed by deferred I/O, it receives a segmentation fault. Fix this by removing the check for VM_IO in do_page_fault(). Signed-off-by: Geert Uytterhoeven Tested-by: Michael Schmitz Link: https://lore.kernel.org/r/20220128173006.1713210-1-geert@linux-m68k.org --- arch/m68k/mm/fault.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch') diff --git a/arch/m68k/mm/fault.c b/arch/m68k/mm/fault.c index 1493cf5eac1e..71aa9f6315dc 100644 --- a/arch/m68k/mm/fault.c +++ b/arch/m68k/mm/fault.c @@ -93,8 +93,6 @@ retry: vma = find_vma(mm, address); if (!vma) goto map_err; - if (vma->vm_flags & VM_IO) - goto acc_err; if (vma->vm_start <= address) goto good_area; if (!(vma->vm_flags & VM_GROWSDOWN)) -- cgit v1.2.3