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Subject: Re: [PATCH RESEND v6 6/9] xfs: Implement ->notify_failure() for XFS
To:     Shiyang Ruan <ruansy.fnst@fujitsu.com>,
        linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org,
        nvdimm@lists.linux.dev, linux-mm@kvack.org,
        linux-fsdevel@vger.kernel.org, dm-devel@redhat.com
Cc:     djwong@kernel.org, dan.j.williams@intel.com, david@fromorbit.com,
        hch@lst.de, agk@redhat.com, snitzer@redhat.com
References: <20210730100158.3117319-1-ruansy.fnst@fujitsu.com>
 <20210730100158.3117319-7-ruansy.fnst@fujitsu.com>
From:   Jane Chu <jane.chu@oracle.com>
Organization: Oracle Corporation
Message-ID: <ec5dd047-a420-8e17-d803-729e052b2377@oracle.com>
Date:   Thu, 5 Aug 2021 17:50:27 -0700
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On 7/30/2021 3:01 AM, Shiyang Ruan wrote:
> +	mapping = VFS_I(ip)->i_mapping;
> +	if (IS_ENABLED(CONFIG_MEMORY_FAILURE)) {
> +		for (i = 0; i < rec->rm_blockcount; i++) {
> +			error = mf_dax_kill_procs(mapping, rec->rm_offset + i,
> +						  *flags);
> +			if (error)
> +				break;
> +		}
> +	}

If a poison is injected to a PMD dax page, after consuming the poison,
how many SIGBUS signals are expected to be sent to the process?

thanks,
-jane