On Thu, 30 Aug 2018 22:55:47 +0530 Souptick Joarder <jrdr.linux@xxxxxxxxx> wrote: > Return type for fault handlers in ext4 and nilfs are > changed to use vm_fault_t. > > Return type of block_page_mkwrite() is changed from > int to vm_fault_t. The function signature of > block_page_mkwrite() is changed to add one new parameter > int *err. This will provide a way for caller functions > to get error value along with return value and use it > further. > > Return type of block_page_mkwrite_return() is also changed > to use new vm_fault_t type. > --- a/fs/nilfs2/file.c > +++ b/fs/nilfs2/file.c > @@ -51,13 +51,14 @@ int nilfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) > return err; > } > > -static int nilfs_page_mkwrite(struct vm_fault *vmf) > +static vm_fault_t nilfs_page_mkwrite(struct vm_fault *vmf) nilfs_page_mkwrite() already has return type vm_fault_t in Linus's kernel, due to the now-merged fs-nilfs2-adding-new-return-type-vm_fault_t.patch. Looks like a simple fix. I'm beginning to feel vm_fault_t exhaustion. Please remind me what benefit we're going to get out of all this churn? > > ... >