From: Bart Van Assche <bvanassche@acm.org>
To: Ming Lei <ming.lei@redhat.com>, Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
Hannes Reinecke <hare@suse.com>,
Greg KH <gregkh@linuxfoundation.org>,
Mike Snitzer <snitzer@redhat.com>
Subject: Re: [PATCH V4 5/5] block: split .sysfs_lock into two locks
Date: Tue, 27 Aug 2019 09:37:58 -0700 [thread overview]
Message-ID: <7f0593f7-356c-6fef-f280-024c0ead9fcf@acm.org> (raw)
In-Reply-To: <20190827110148.808-6-ming.lei@redhat.com>
On 8/27/19 4:01 AM, Ming Lei wrote:
> The kernfs built-in lock of 'kn->count' is held in sysfs .show/.store
> path. Meantime, inside block's .show/.store callback, q->sysfs_lock is
> required.
> [ ... ]
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
next prev parent reply other threads:[~2019-08-27 16:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-27 11:01 [PATCH V4 0/5] block: don't acquire .sysfs_lock before removing mq & iosched kobjects Ming Lei
2019-08-27 11:01 ` [PATCH V4 1/5] block: Remove blk_mq_register_dev() Ming Lei
2019-08-27 11:01 ` [PATCH V4 2/5] block: don't hold q->sysfs_lock in elevator_init_mq Ming Lei
2019-08-27 11:01 ` [PATCH V4 3/5] blk-mq: don't hold q->sysfs_lock in blk_mq_map_swqueue Ming Lei
2019-08-27 11:01 ` [PATCH V4 4/5] block: add helper for checking if queue is registered Ming Lei
2019-08-27 11:01 ` [PATCH V4 5/5] block: split .sysfs_lock into two locks Ming Lei
2019-08-27 16:37 ` Bart Van Assche [this message]
2019-08-27 16:40 ` [PATCH V4 0/5] block: don't acquire .sysfs_lock before removing mq & iosched kobjects Jens Axboe
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