On Tue, Jan 18, 2022 at 05:40:14PM +0000, David Howells wrote: > Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > > On Tue, Jan 18, 2022 at 01:54:54PM +0000, David Howells wrote: > > > Add an IS_KERNEL_FILE() macro to test the S_KERNEL_FILE inode flag as is > > > common practice for the other inode flags[1]. > > > > Please fix the flag to have a sensible name first, as the naming of the > > flag and this new helper is utterly wrong as we already discussed. > > And I suggested a new name, which you didn't comment on. Again, look at the semantics of the flag: The only thing it does in the VFS is to prevent a rmdir. So you might want to name it after that. Or in fact drop the flag entirely. We don't have that kind of protection for other in-kernel file use or important userspace daemons either. I can't see why cachefiles is the magic snowflake here that suddenly needs semantics no one else has.
