2006-09-21 18:53:41

by Chen, Kenneth W

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Subject: [patch] clean up unused kiocb variables

Any reason why we keep these two variables around for kiocb structure?
They are not used anywhere.

Patch to tidy up kiocb structure.


Signed-off-by: Ken Chen <[email protected]>


--- ./include/linux/aio.h.orig 2006-09-21 10:03:36.000000000 -0700
+++ ./include/linux/aio.h 2006-09-21 10:03:56.000000000 -0700
@@ -110,8 +110,6 @@
char __user *ki_buf; /* remaining iocb->aio_buf */
size_t ki_left; /* remaining bytes */
long ki_retried; /* just for testing */
- long ki_kicked; /* just for testing */
- long ki_queued; /* just for testing */

struct list_head ki_list; /* the aio core uses this
* for cancellation */


2006-09-21 19:33:38

by Zach Brown

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Subject: Re: [patch] clean up unused kiocb variables

Chen, Kenneth W wrote:
> Any reason why we keep these two variables around for kiocb structure?

If there is a good one I've forgotten it.

> They are not used anywhere.

Indeed.

The ki_retried users all seem pretty questionable, too. How about
removing all that stuff?

> Signed-off-by: Ken Chen <[email protected]>

Signed-off-by: Zach Brown <[email protected]>

- z

2006-09-21 20:27:23

by Chen, Kenneth W

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Subject: RE: [patch] clean up unused kiocb variables

Zach Brown wrote on Thursday, September 21, 2006 12:34 PM
> Chen, Kenneth W wrote:
> > Any reason why we keep these two variables around for kiocb structure?
>
> If there is a good one I've forgotten it.
>
> > They are not used anywhere.
>
> Indeed.


Let's remove them. We can always add them back if there is a need.


> The ki_retried users all seem pretty questionable, too. How about
> removing all that stuff?

Suparna wanted them around for debug purpose at one point. I don't know
whether that is still the case right now. At least I can wrap it around
with #if DEBUG.

- Ken

2006-09-21 20:30:49

by Zach Brown

[permalink] [raw]
Subject: Re: [patch] clean up unused kiocb variables


> Let's remove them. We can always add them back if there is a need.

Agreed, especially in this age of dynamic probing.

> Suparna wanted them around for debug purpose at one point. I don't know
> whether that is still the case right now. At least I can wrap it around
> with #if DEBUG.

I guess that's better than nothing. Given the near total lack of
-EIOCBRETRY users I'm just not convinced that they're worth it.

- z