Re: IMA: Avoid redundant rehashing on stacked filesystems backed by structurally immutable filesystems

> By "fs reconfiguration", do you mean remounting the filesystem? If so, the iint stored in the LSM security blob should be freed when the filesystem is unmounted.

I'm a visitor to VFS code, but from what I surmise, a remount doesn't
seem to be equivalent to an unmount + a subsequent mount. It's clear
to me that an explicit unmount would eventually call evict_inodes() ->
... -> security_inode_free(), but I don't trace such a path when
remounting it.

Sahil