From: Logan Gunthorpe <logang@deltatee.com>
To: Donald Buczek <buczek@molgen.mpg.de>,
linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org,
Song Liu <song@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>,
Guoqing Jiang <guoqing.jiang@linux.dev>, Xiao Ni <xni@redhat.com>,
Stephen Bates <sbates@raithlin.com>,
Martin Oliveira <Martin.Oliveira@eideticom.com>,
David Sloan <David.Sloan@eideticom.com>
Subject: Re: [PATCH v1 12/15] md/raid5-cache: Add RCU protection to conf->log accesses
Date: Tue, 24 May 2022 09:55:51 -0600 [thread overview]
Message-ID: <c22de8df-0599-0a86-146a-267f576f5500@deltatee.com> (raw)
In-Reply-To: <571344e2-6e43-a72f-bd12-04d650e669fd@molgen.mpg.de>
On 2022-05-22 01:32, Donald Buczek wrote:
>> /*
>> @@ -703,7 +720,7 @@ static void r5c_disable_writeback_async(struct work_struct *work)
>>
>> /* wait superblock change before suspend */
>> wait_event(mddev->sb_wait,
>> - conf->log == NULL ||
>> + rcu_access_pointer(conf->log) ||
>
> Reversed condition?
>
> I think, some examples in Documentation/RCU/Design/Requirements/Requirements.rst are reversed, too.
Oops. Nice Catch!
Thanks,
Logan
next prev parent reply other threads:[~2022-05-24 15:57 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-19 19:12 [PATCH v1 00/15] Bug fixes for mdadm tests Logan Gunthorpe
2022-05-19 19:12 ` [PATCH v1 01/15] md/raid5-log: Drop extern decorators for function prototypes Logan Gunthorpe
2022-05-21 11:36 ` Christoph Hellwig
2022-05-19 19:12 ` [PATCH v1 02/15] md/raid5-cache: Refactor r5c_is_writeback() to take a struct r5conf Logan Gunthorpe
2022-05-21 11:37 ` Christoph Hellwig
2022-05-19 19:12 ` [PATCH v1 03/15] md/raid5-cache: Refactor r5l_start() " Logan Gunthorpe
2022-05-21 11:37 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 04/15] md/raid5-cache: Refactor r5l_flush_stripe_to_raid() " Logan Gunthorpe
2022-05-21 11:38 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 05/15] md/raid5-cache: Refactor r5l_wake_reclaim() " Logan Gunthorpe
2022-05-21 11:38 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 06/15] md/raid5-cache: Refactor remaining functions to take a r5conf Logan Gunthorpe
2022-05-21 11:40 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 07/15] md/raid5-ppl: Drop unused argument from ppl_handle_flush_request() Logan Gunthorpe
2022-05-21 11:41 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 08/15] md/raid5-cache: Pass the log through to r5c_finish_cache_stripe() Logan Gunthorpe
2022-05-21 11:42 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 09/15] md/raid5-cache: Don't pass conf to r5c_calculate_new_cp() Logan Gunthorpe
2022-05-21 11:42 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 10/15] md/raid5-cache: Take struct r5l_log in r5c_log_required_to_flush_cache() Logan Gunthorpe
2022-05-21 11:43 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 11/15] md/raid5: Ensure array is suspended for calls to log_exit() Logan Gunthorpe
2022-05-21 11:44 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 12/15] md/raid5-cache: Add RCU protection to conf->log accesses Logan Gunthorpe
2022-05-21 11:50 ` Christoph Hellwig
2022-05-22 7:31 ` Donald Buczek
2022-05-23 6:47 ` Song Liu
2022-05-23 18:15 ` Song Liu
2022-05-24 16:14 ` Logan Gunthorpe
2022-05-24 15:59 ` Logan Gunthorpe
2022-05-24 18:13 ` Song Liu
2022-05-22 7:32 ` Donald Buczek
2022-05-24 15:55 ` Logan Gunthorpe [this message]
2022-05-19 19:13 ` [PATCH v1 13/15] md/raid5-cache: Annotate pslot with __rcu notation Logan Gunthorpe
2022-05-21 11:51 ` Christoph Hellwig
2022-05-19 19:13 ` [PATCH v1 14/15] md: Ensure resync is reported after it starts Logan Gunthorpe
2022-05-21 11:51 ` Christoph Hellwig
2022-05-24 15:45 ` Logan Gunthorpe
2022-05-19 19:13 ` [PATCH v1 15/15] md: Notify sysfs sync_completed in md_reap_sync_thread() Logan Gunthorpe
2022-05-21 11:52 ` Christoph Hellwig
2022-05-23 6:28 ` [PATCH v1 00/15] Bug fixes for mdadm tests Song Liu
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