linux-kernel - Re: [PATCH v2][trace-cmd] blk plugin: replace BLK_TC_BARRIER with BLK_TC_FLUSH/BLK_TC

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Message-ID: <1326143024.7642.39.camel@gandalf.stny.rr.com>
Date:	Mon, 09 Jan 2012 16:03:44 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Stefan Hajnoczi <stefanha@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...il.com>
Subject: Re: [PATCH v2][trace-cmd] blk plugin: replace BLK_TC_BARRIER with
 BLK_TC_FLUSH/BLK_TC_FUA

On Mon, 2012-01-09 at 11:30 +0000, Stefan Hajnoczi wrote:
> The BLK_TC_BARRIER flag was dropped in Linux commit c09c47caedc in
> August 2011.  The blk plugin fails to build against recent kernel
> headers.  Since no flag bits were left, the new BLK_TC_FLUSH flag reused
> the BLK_TC_BARRIER bit.  The new BLK_TC_FUA flag was also added.
> 
> This patch updates fill_rwbs() to reflect the new
> BLK_TC_FLUSH/BLK_TC_FUA flags.  This allows plugin_blk.c to build
> successfully on recent kernels.  Most of the patch deals with detecting
> old vs new kernel headers so we can build successfully on both.
> 
> Signed-off-by: Stefan Hajnoczi <stefanha@...ux.vnet.ibm.com>



Thanks, applied!

-- Steve


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