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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2022-01-28 18:30:06 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2022-02-21 12:00:20 +0100 |
| commit | c4d5b6eef2581dd893bea4edb374e480e5a90ce6 (patch) | |
| tree | ad91c7225c16966c2dc05b3352f04710055d623b /arch/m68k/mm/fault.c | |
| parent | 91d7b75a5888c1824c87bded439db6e3e3ad7e3c (diff) | |
| download | linux-c4d5b6eef2581dd893bea4edb374e480e5a90ce6.tar.gz linux-c4d5b6eef2581dd893bea4edb374e480e5a90ce6.tar.bz2 linux-c4d5b6eef2581dd893bea4edb374e480e5a90ce6.zip | |
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 <geert@linux-m68k.org>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Link: https://lore.kernel.org/r/20220128173006.1713210-1-geert@linux-m68k.org
Diffstat (limited to 'arch/m68k/mm/fault.c')
| -rw-r--r-- | arch/m68k/mm/fault.c | 2 |
1 files changed, 0 insertions, 2 deletions
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)) |