From: kbusch@kernel.org (Keith Busch)
Subject: [PATCH v2 4/4] nvme: release namespace SRCU protection before performing controller ioctls
Date: Fri, 17 May 2019 08:41:27 -0600 [thread overview]
Message-ID: <20190517144127.GA24925@localhost.localdomain> (raw)
In-Reply-To: <20190517094736.14504-4-hch@lst.de>
On Fri, May 17, 2019@11:47:36AM +0200, Christoph Hellwig wrote:
> Holding the SRCU critical section protecting the namespace list can
> cause deadlocks when using the per-namespace admin passthrough ioctl to
> delete as namespace. Release it earlier when performing per-controller
> ioctls to avoid that.
>
> Reported-by: Kenneth Heitke <kenneth.heitke at intel.com>
> Signed-off-by: Christoph Hellwig <hch at lst.de>
This looks fine.
Reviewed-by: Keith Busch <keith.busch at intel.com>
next prev parent reply other threads:[~2019-05-17 14:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-17 9:47 [PATCH 1/4] nvme: fix srcu locking on error return in nvme_get_ns_from_disk Christoph Hellwig
2019-05-17 9:47 ` [PATCH 2/4] nvme: remove the ifdef around nvme_nvm_ioctl Christoph Hellwig
2019-05-17 9:47 ` [PATCH 3/4] nvme: merge nvme_ns_ioctl into nvme_ioctl Christoph Hellwig
2019-05-17 15:31 ` Minwoo Im
2019-05-17 9:47 ` [PATCH v2 4/4] nvme: release namespace SRCU protection before performing controller ioctls Christoph Hellwig
2019-05-17 14:41 ` Keith Busch [this message]
2019-05-17 16:30 ` Chaitanya Kulkarni
2019-05-17 18:36 ` [PATCH 1/4] nvme: fix srcu locking on error return in nvme_get_ns_from_disk Keith Busch
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