On Mon, Oct 11, 2021 at 03:26:02PM -0700, Luis Chamberlain wrote:

On Tue, Oct 05, 2021 at 01:50:31PM -0700, Kees Cook wrote:

quoted

For example, why does this not work?

It does for the write case for sure,

I mispoke, just for the record, the changes you mentioned actually don't
suffice for the test cases in question for test_sysfs, the deadlock
still occurs with those changes. At first I thought it did but I had failed
to remove my own fix first on fs/kernfs/dir.c. After removing that and
just trying the proposed changes I confirm it does not fix the deadlock.

  Luis