Re: [PATCH] xfs: take hm->lock in xfs_ioc_health_monitor() before insert

[Carlos Maiolino <cem@kernel.org>]

On Wed, Sep 09, 2026 at 10:07:56PM -0700, Christoph Hellwig wrote:
> On Sun, Sep 06, 2026 at 09:51:50PM -0700, Darrick J. Wong wrote:
> > On Sun, Sep 06, 2026 at 08:16:29PM +0530, Deepanshu Kartikey wrote:
> > > __xfs_healthmon_insert() asserts that hm->lock is held
> > > (lockdep_assert_held), but xfs_ioc_health_monitor() called it right
> > > after allocating hm, before ever taking the lock, triggering a
> > > lockdep warning.
> > > 
> > > Take hm->lock around the call.
> > > 
> > > Fixes: b3a289a2a9397 ("xfs: create event queuing, formatting, and discovery infrastructure")
> > > Reported-by: syzbot+ccdf3469f5f653bff7ac@syzkaller.appspotmail.com
> > > Closes: https://syzkaller.appspot.com/bug?extid=ccdf3469f5f653bff7ac
> > > Signed-off-by: Deepanshu Kartikey <kartikey406@gmail.com>
> > 
> > Heh, I added a patch just like this one to my own tree.
> > Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
> 
> Can we get this queued up ASAP?  It's also causing a lot of failures in
> our zoned XFS CI.
> 

Yes, give me a few minutes and I'll have it today, ready for the next rc