Re: [PATCH v2 3/5] coredump: Refactor page range dumping into common helper

[Christoph Hellwig]

On Wed, Apr 29, 2020 at 11:49:52PM +0200, Jann Horn wrote:
> Both fs/binfmt_elf.c and fs/binfmt_elf_fdpic.c need to dump ranges of pages
> into the coredump file. Extract that logic into a common helper.
> 
> Any other binfmt that actually wants to create coredumps will probably need
> the same function; so stop making get_dump_page() depend on
> CONFIG_ELF_CORE.

Why is the #ifdef CONFIG_ELF_CORE in gup.c removed when the only
remaining caller is under the same ifdef?

Otherwise this looks fine to me.