linux-kernel - Re: [PATCH] block: mq flush: fix race between IPI handler and mq flush worker

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Message-ID: <20140527181305.GA7975@lst.de>
Date:	Tue, 27 May 2014 20:13:05 +0200
From:	Christoph Hellwig <hch@....de>
To:	Ming Lei <tom.leiming@...il.com>
Cc:	Jens Axboe <axboe@...nel.dk>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	stable <stable@...r.kernel.org>
Subject: Re: [PATCH] block: mq flush: fix race between IPI handler and mq
	flush worker

Here is my counter proposal that requeues via two lists and a work struct
in the request_queue.  I've also tested it with scsi-mq.


View attachment "0001-blk-mq-add-helper-to-insert-requests-from-irq-contex.patch" of type "text/x-patch" (4649 bytes)