[PATCH] block: export trace_block_unplug

[PATCH] block: export trace_block_unplug

[NeilBrown]

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Hi Jens,
 is there any chance this can be in the next merge window?  I'm
adding block tracing to md and found I need another export.

Thanks,
NeilBrown


This allows stacked devices (like md/raid5) to provide blktrace
tracing, including unplug events.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/block/blk-core.c b/block/blk-core.c
index 4b4dbdf..ef55ae0 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -40,6 +40,7 @@
 EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_remap);
 EXPORT_TRACEPOINT_SYMBOL_GPL(block_rq_remap);
 EXPORT_TRACEPOINT_SYMBOL_GPL(block_bio_complete);
+EXPORT_TRACEPOINT_SYMBOL_GPL(block_unplug);
 
 DEFINE_IDA(blk_queue_ida);
 

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Re: [PATCH] block: export trace_block_unplug

[Jens Axboe]

On 09/25/2012 01:57 AM, NeilBrown wrote:
> 
> Hi Jens,
>  is there any chance this can be in the next merge window?  I'm
> adding block tracing to md and found I need another export.

No problem, applied.

-- 
Jens Axboe

Re: [PATCH] block: export trace_block_unplug

[NeilBrown]

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On Tue, 25 Sep 2012 14:50:34 +0200 Jens Axboe <axboe@kernel.dk> wrote:

> On 09/25/2012 01:57 AM, NeilBrown wrote:
> > 
> > Hi Jens,
> >  is there any chance this can be in the next merge window?  I'm
> > adding block tracing to md and found I need another export.
> 
> No problem, applied.
> 

Thanks.
NeilBrown

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