Re: [PATCH] btrfs: cleanup for open-coded alignment

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On Thu, Feb 28, 2013 at 08:50:37AM +0800, Qu Wenruo wrote:
> >I have covered all cases in my original patch with a coccinelle semantic
> >patch http://www.spinics.net/lists/linux-btrfs/msg12750.html and also
> >removed the useless stripe_align helper and updated it's callers (and it
> >still applies after merging the raid56 code that updated the function
> >with 2 unused arguments).
> Thanks for pointing out the original rules.
> The orginal rules is pretty good but can only
> deal with the open-coded alignment in one line.
> 
> If there is something using varient "mask",
> the rules seems no help like the following:
> ------
> 
>         u64 mask = ((u64)root->stripesize - 1);
>         u64 ret = (val + mask) & ~mask;

You're right, the semantic patch does not cover that, so you've found
more cases in the end, that's good.

> And sorry for the wrong signed-off, it seems that I'm using one of your
> deprecated mail address.

Still active, but I prefer to use the $job one.

david
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