linux-kernel - Re: [PATCH 3/5] blktrace: fix off-by-one bug

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Date:	Tue, 24 Mar 2009 16:50:10 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Jens Axboe <jens.axboe@...cle.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/5] blktrace: fix off-by-one bug

> Ah. This:
> 
>         [__BLK_TA_QUEUE]        = {{  "Q", "queue" },      blk_log_generic },
>         [__BLK_TA_BACKMERGE]    = {{  "M", "backmerge" },  blk_log_generic },
>         [__BLK_TA_FRONTMERGE]   = {{  "F", "frontmerge" }, blk_log_generic },
>         [__BLK_TA_GETRQ]        = {{  "G", "getrq" },      blk_log_generic },
>         [__BLK_TA_SLEEPRQ]      = {{  "S", "sleeprq" },    blk_log_generic },
>         [__BLK_TA_REQUEUE]      = {{  "R", "requeue" },    blk_log_with_error },
>         [__BLK_TA_ISSUE]        = {{  "D", "issue" },      blk_log_generic },
>         [__BLK_TA_COMPLETE]     = {{  "C", "complete" },   blk_log_with_error },
>         [__BLK_TA_PLUG]         = {{  "P", "plug" },       blk_log_plug },
>         [__BLK_TA_UNPLUG_IO]    = {{  "U", "unplug_io" },  blk_log_unplug },
>         [__BLK_TA_UNPLUG_TIMER] = {{ "UT", "unplug_timer" }, blk_log_unplug },
>         [__BLK_TA_INSERT]       = {{  "I", "insert" },     blk_log_generic },
>         [__BLK_TA_SPLIT]        = {{  "X", "split" },      blk_log_split },
>         [__BLK_TA_BOUNCE]       = {{  "B", "bounce" },     blk_log_generic },
>         [__BLK_TA_REMAP]        = {{  "A", "remap" },      blk_log_remap },
> 
> does not have a __BLK_TA_ABORT entry currently - it should have, 
> right?
> 

Right, currently I'm not sure if blk_log_with_error is suitable for "abort" event,
so I haven't fixed it yet. :)
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