From: Souptick Joarder <jrdr.linux@xxxxxxxxx> Subject: mm: convert to use vm_fault_t As part of vm_fault_t conversion filemap_page_mkwrite() for the NOMMU case was missed. Now converted. Link: http://lkml.kernel.org/r/20180828174952.GA29229@jordon-HP-15-Notebook-PC Signed-off-by: Souptick Joarder <jrdr.linux@xxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/filemap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/mm/filemap.c~mm-conveted-to-use-vm_fault_t +++ a/mm/filemap.c @@ -2748,9 +2748,9 @@ int generic_file_readonly_mmap(struct fi return generic_file_mmap(file, vma); } #else -int filemap_page_mkwrite(struct vm_fault *vmf) +vm_fault_t filemap_page_mkwrite(struct vm_fault *vmf) { - return -ENOSYS; + return VM_FAULT_SIGBUS; } int generic_file_mmap(struct file * file, struct vm_area_struct * vma) { _