From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: Tejun Heo <tj@kernel.org>, Vivek Goyal <vgoyal@redhat.com>,
Jeff Moyer <jmoyer@redhat.com>, Mike Snitzer <snitzer@redhat.com>,
Markus Trippelsdorf <markus@trippelsdorf.de>,
linux-kernel@vger.kernel.org,
Chris Mason <chris.mason@oracle.com>
Subject: Re: [PATCH] block: eliminate ELEVATOR_INSERT_REQUEUE
Date: Wed, 30 Mar 2011 14:49:53 +0300 [thread overview]
Message-ID: <20110330114953.GA4080@swordfish.minsk.epam.com> (raw)
In-Reply-To: <4D931292.8050104@kernel.dk>
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On (03/30/11 13:22), Jens Axboe wrote:
> > Nope, doesn't work for me. fsck.ext4 crashed the system.
> >
> > __elv_add_request
> > blk_flush_complete_seq
> > blk_insert_flush
> > __elv_add_request
> > __make_request
> > generic_make_request
> > ?bio_alloc_bioset
> > blkdev_issue_flush
> > blkdev_fsync
> > vfs_fsync
> > [..]
>
> Ah, this addon should behave better.
>
Seems to work fine for me.
Sergey
> diff --git a/block/blk-flush.c b/block/blk-flush.c
> index 6a16fea..eba4a27 100644
> --- a/block/blk-flush.c
> +++ b/block/blk-flush.c
> @@ -261,7 +261,7 @@ static bool blk_kick_flush(struct request_queue *q)
> q->flush_rq.end_io = flush_end_io;
>
> q->flush_pending_idx ^= 1;
> - __elv_add_request(q, &q->flush_rq, ELEVATOR_INSERT_FLUSH);
> + list_add_tail(&q->flush_rq.queuelist, &q->queue_head);
> return true;
> }
>
>
> --
> Jens Axboe
>
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next prev parent reply other threads:[~2011-03-30 11:43 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-25 15:15 [OOPS] elevator private data for REQ_FLUSH Sergey Senozhatsky
2011-03-25 15:22 ` Markus Trippelsdorf
2011-03-25 15:40 ` Mike Snitzer
2011-03-25 15:50 ` Jens Axboe
2011-03-25 18:54 ` Mike Snitzer
2011-03-25 19:50 ` Jens Axboe
2011-03-26 4:21 ` Mike Snitzer
2011-03-28 8:23 ` Tejun Heo
2011-03-28 22:15 ` [PATCH] block: eliminate ELEVATOR_INSERT_REQUEUE (was: Re: elevator private data for REQ_FLUSH) Mike Snitzer
2011-03-29 11:56 ` [PATCH] block: eliminate ELEVATOR_INSERT_REQUEUE Jens Axboe
2011-03-29 14:18 ` Mike Snitzer
2011-03-29 18:25 ` [PATCH] " Christoph Hellwig
2011-03-30 7:42 ` Tejun Heo
2011-03-30 7:53 ` Jens Axboe
2011-03-29 14:13 ` [PATCH] block: eliminate ELEVATOR_INSERT_REQUEUE (was: Re: elevator private data for REQ_FLUSH) Jeff Moyer
2011-03-29 17:54 ` Vivek Goyal
2011-03-30 7:41 ` Tejun Heo
2011-03-30 7:57 ` Tejun Heo
2011-03-30 7:59 ` [PATCH] block: eliminate ELEVATOR_INSERT_REQUEUE Jens Axboe
2011-03-30 8:02 ` Tejun Heo
2011-03-30 10:16 ` Jens Axboe
2011-03-30 11:20 ` Tejun Heo
2011-03-30 11:23 ` Jens Axboe
2011-03-30 11:21 ` Sergey Senozhatsky
2011-03-30 11:22 ` Jens Axboe
2011-03-30 11:49 ` Sergey Senozhatsky [this message]
2011-03-30 13:46 ` Vivek Goyal
2011-03-30 13:49 ` Tejun Heo
2011-03-30 14:01 ` Mike Snitzer
2011-03-30 14:27 ` Tejun Heo
2011-03-30 15:22 ` Vivek Goyal
2011-03-30 15:30 ` Tejun Heo
2011-03-30 17:13 ` Jens Axboe
2011-03-30 17:32 ` Tejun Heo
2011-03-30 17:56 ` Jeff Moyer
2011-03-30 18:12 ` Jens Axboe
2011-03-25 15:57 ` [OOPS] elevator private data for REQ_FLUSH Jens Axboe
2011-03-25 16:03 ` Markus Trippelsdorf
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