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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