From: Richard Weinberger <richard@nod.at>
To: Tomas Winkler <tomas.winkler@intel.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
Vignesh Raghavendra <vigneshr@ti.com>,
linux-mtd <linux-mtd@lists.infradead.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mtd: use refcount to prevent corruption
Date: Wed, 27 Jan 2021 21:46:40 +0100 (CET) [thread overview]
Message-ID: <9732911.325628.1611780400338.JavaMail.zimbra@nod.at> (raw)
In-Reply-To: <20210127200319.662842-1-tomas.winkler@intel.com>
Tomas,
----- Ursprüngliche Mail -----
> Von: "Tomas Winkler" <tomas.winkler@intel.com>
> An: "Miquel Raynal" <miquel.raynal@bootlin.com>, "richard" <richard@nod.at>, "Vignesh Raghavendra" <vigneshr@ti.com>,
> "linux-mtd" <linux-mtd@lists.infradead.org>, "linux-kernel" <linux-kernel@vger.kernel.org>
> CC: "Tomas Winkler" <tomas.winkler@intel.com>
> Gesendet: Mittwoch, 27. Januar 2021 21:03:19
> Betreff: [PATCH] mtd: use refcount to prevent corruption
> When underlying device is removed mtd core will crash
> in case user space is still holding an open handle to a mtd device node.
> A proper refcounting is needed so device is release only when a
> partition has no active users. The current simple counter is not
> sufficient.
Can you please explain a little more what devices are involved?
Does it implement _get_device() and _put_device()?
Thanks,
//richard
next prev parent reply other threads:[~2021-01-27 20:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-27 20:03 [PATCH] mtd: use refcount to prevent corruption Tomas Winkler
2021-01-27 20:46 ` Richard Weinberger [this message]
2021-01-27 20:55 ` Winkler, Tomas
2021-01-27 21:17 ` Richard Weinberger
2021-01-28 6:33 ` Winkler, Tomas
2021-01-28 7:47 ` Richard Weinberger
2021-01-28 8:53 ` Winkler, Tomas
2021-01-28 9:00 ` Miquel Raynal
2021-01-28 17:57 ` Winkler, Tomas
2021-01-28 20:23 ` Richard Weinberger
2021-02-13 17:09 ` Winkler, Tomas
2021-02-15 13:43 ` Richard Weinberger
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