linux-kernel - Re: [PATCH] ses: Fix racy cleanup of /sys in remove

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Message-ID: <yq1popx2q5t.fsf@sermon.lab.mkp.net>
Date:	Thu, 28 Jul 2016 21:23:26 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Calvin Owens <calvinowens@...com>
Cc:	"James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	<linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ses: Fix racy cleanup of /sys in remove_dev()

>>>>> "Calvin" == Calvin Owens <calvinowens@...com> writes:

>> Any thoughts? Squinting at this more it still seems racy, but a
>> narrow race is surely better than just blatantly freeing everything
>> while the file is still exposed in /sys? Is there a better way you'd
>> prefer I accomplish this?
>> 
>> (I have boxes that OOPS all the time from monitoring code reading the
>> /sys files, with this patch I haven't seen a single one.)

Calvin> Ping? Thoughts, comments?

James: This is your puppy...

-- 
Martin K. Petersen	Oracle Linux Engineering