Re: [PATCH 2/2] vfs: Fix anon_inode triggering VFS_BUG_ON_INODE in may_open()

[Christian Brauner]

On Fri, Apr 04, 2025 at 01:31:58AM -0700, Christoph Hellwig wrote:
> Please make sure anon inodes have a valid mode set.  Leaving this
> landmine around where we have inodes without a valid mode is just going
> to create more problems in the future.

We've tried to change it, it immediately leads to userspace tools
regressions as they've started to rely on that behavior because it's been
like that since the dawn of time. We even had to work around that crap
in pidfs because lsof regressed. So now, we can't do this.
>