From: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
To: Uma Krishnan <ukrishn@linux.vnet.ibm.com>,
linux-scsi@vger.kernel.org,
James Bottomley <jejb@linux.vnet.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"Matthew R. Ochs" <mrochs@linux.vnet.ibm.com>,
"Manoj N. Kumar" <manoj@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org, Ian Munsie <imunsie@au1.ibm.com>,
Frederic Barrat <fbarrat@linux.vnet.ibm.com>,
Christophe Lombard <clombard@linux.vnet.ibm.com>
Subject: Re: [PATCH 10/17] cxlflash: Fence EEH during probe
Date: Thu, 13 Apr 2017 16:27:35 +1000 [thread overview]
Message-ID: <5393e552-5c08-2b76-9a42-c7225ac11877@au1.ibm.com> (raw)
In-Reply-To: <1492024491-55992-1-git-send-email-ukrishn@linux.vnet.ibm.com>
On 13/04/17 05:14, Uma Krishnan wrote:
> From: "Matthew R. Ochs" <mrochs@linux.vnet.ibm.com>
>
> An EEH during probe can lead to a crash as the recovery thread races
> with the probe thread. To avoid this issue, introduce new states to
> fence out EEH recovery until probe has completed. Also ensure the reset
> wait queue is flushed during device removal to avoid orphaned threads.
>
> Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
> Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
The use of the term "fence" in the commit message might be a bit
confusing given how the term is already used in the context of EEH :)
Andrew
--
Andrew Donnellan OzLabs, ADL Canberra
andrew.donnellan@au1.ibm.com IBM Australia Limited
next prev parent reply other threads:[~2017-04-13 6:28 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-12 19:10 [PATCH 00/17] cxlflash: Enhancements and miscellaneous fixes Uma Krishnan
2017-04-12 19:11 ` [PATCH 01/17] cxlflash: Separate RRQ processing from the RRQ interrupt handler Uma Krishnan
2017-04-12 19:12 ` [PATCH 02/17] cxlflash: Serialize RRQ access and support offlevel processing Uma Krishnan
2017-04-12 19:13 ` [PATCH 03/17] cxlflash: Implement IRQ polling for RRQ processing Uma Krishnan
2017-04-12 19:13 ` [PATCH 04/17] cxlflash: Update sysfs helper routines to pass config structure Uma Krishnan
2017-04-12 19:13 ` [PATCH 05/17] cxlflash: Support dynamic number of FC ports Uma Krishnan
2017-04-12 19:14 ` [PATCH 06/17] cxlflash: Remove port configuration assumptions Uma Krishnan
2017-04-12 19:14 ` [PATCH 07/17] cxlflash: Hide FC internals behind common access routine Uma Krishnan
2017-04-12 19:14 ` [PATCH 08/17] cxlflash: SISlite updates to support 4 ports Uma Krishnan
2017-04-12 19:14 ` [PATCH 09/17] cxlflash: Support up to " Uma Krishnan
2017-04-12 19:14 ` [PATCH 10/17] cxlflash: Fence EEH during probe Uma Krishnan
2017-04-13 6:27 ` Andrew Donnellan [this message]
2017-04-13 21:46 ` Matthew R. Ochs
2017-04-13 21:46 ` Matthew R. Ochs
2017-04-12 19:15 ` [PATCH 11/17] cxlflash: Remove unnecessary DMA mapping Uma Krishnan
2017-04-12 19:15 ` [PATCH 12/17] cxlflash: Fix power-of-two validations Uma Krishnan
2017-04-12 19:15 ` [PATCH 13/17] cxlflash: Fix warnings/errors Uma Krishnan
2017-04-12 19:15 ` [PATCH 14/17] cxlflash: Improve asynchronous interrupt processing Uma Krishnan
2017-04-12 19:15 ` [PATCH 15/17] cxlflash: Support multiple hardware queues Uma Krishnan
2017-04-13 22:09 ` Matthew R. Ochs
2017-04-13 22:09 ` Matthew R. Ochs
2017-04-12 19:15 ` [PATCH 16/17] cxlflash: Add hardware queues attribute Uma Krishnan
2017-04-12 19:16 ` [PATCH 17/17] cxlflash: Introduce hardware queue steering Uma Krishnan
2017-04-14 2:56 ` [PATCH 00/17] cxlflash: Enhancements and miscellaneous fixes Martin K. Petersen
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