Messages in this thread | | | From | Paul Moore <> | Date | Thu, 18 Aug 2022 22:07:01 -0400 | Subject | Re: [PATCH v3] nfs: Fix automount superblock LSM init problem, preventing sb sharing |
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On Thu, Aug 18, 2022 at 9:14 AM David Howells <dhowells@redhat.com> wrote: > Paul Moore <paul@paul-moore.com> wrote: > > > I guess my question is this: for inodes inside the superblock, does > > their superblock pointer point to the submount's superblock, or the > > parent filesystem's superblock? > > They have to point to the submount superblock. Too many things would break, I > think, if inode->i_sb pointed to the wrong place. As far as the VFS is > concerned, apart from the way it is mounted, it's a perfectly normal > superblock.
If the submount inodes point back to the submount's superblock then it seems reasonable that the rootcontext should remain unset to me.
-- paul-moore.com
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