From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mike Snitzer <snitzer@redhat.com>
Subject: Re: [PATCH v2] dm-integrity: revert adc0daad366b to fix
	recalculation
Date: Thu, 23 Jul 2020 14:23:29 -0400
Message-ID: <20200723182328.GA3753@redhat.com>
References: <alpine.LRH.2.02.2007221444390.6426@file01.intranet.prod.int.rdu2.redhat.com>
	<20200722194536.GA28682@redhat.com>
	<alpine.LRH.2.02.2007221601140.16826@file01.intranet.prod.int.rdu2.redhat.com>
	<alpine.LRH.2.02.2007231036570.17947@file01.intranet.prod.int.rdu2.redhat.com>
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To: Mikulas Patocka <mpatocka@redhat.com>
Cc: dm-devel@redhat.com, Marian Csontos <mcsontos@redhat.com>, Zdenek Kabelac <zkabelac@redhat.com>
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On Thu, Jul 23 2020 at 10:42am -0400,
Mikulas Patocka <mpatocka@redhat.com> wrote:

> In order to fix this race condition, we add a function dm_suspending that
> is only true during the postsuspend phase and use it instead of
> dm_suspended.
> 

...

> Index: rhel8/drivers/md/dm.c
> ===================================================================
> --- rhel8.orig/drivers/md/dm.c
> +++ rhel8/drivers/md/dm.c
> @@ -140,6 +140,7 @@ EXPORT_SYMBOL_GPL(dm_bio_get_target_bio_
>  #define DMF_NOFLUSH_SUSPENDING 5
>  #define DMF_DEFERRED_REMOVE 6
>  #define DMF_SUSPENDED_INTERNALLY 7
> +#define DMF_SUSPENDING 8

Think I prefer DMF_POST_SUSPENDING.  If you're OK with that I can fix up
the code while I stage your commit.

Thanks,
Mike