Re: [PATCH 1/2 block#for-2.6.36] bio, fs: update RWA_MASK, READAand SWRITE to match the corresponding BIO_RW_* bits

From: Tejun Heo
Date: Tue Aug 03 2010 - 11:52:49 EST


(cc'ing CODA people)
Hello,

On 08/03/2010 01:21 PM, Jens Axboe wrote:
>>> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
>>> Reported-and-bisected-by: Vladislav Bolkhovitin <vst@xxxxxxxx>
>>> Root-caused-by: Neil Brown <neilb@xxxxxxx>
>>> Cc: Jens Axobe <axboe@xxxxxxxxx>
>> ^^^^^
>>
>> (Too) common typo :-)
>>
>> Anyway, applied to for-2.6.36, thanks a lot.

Oops, I'm sorry. Heh, it reminds me of misspelling Linus's last name
as Tolvards in a number of patches. :-)

> Irk, we have an issue:
>
> In file included from fs/coda/psdev.c:48:
> include/linux/coda_psdev.h:91:1: warning: "REQ_WRITE" redefined
> In file included from include/linux/fs.h:11,
> from include/linux/proc_fs.h:5,
> from fs/coda/psdev.c:31:
> include/linux/blk_types.h:154:1: warning: this is the location of the previous definition
>
> And from include/linux/coda_psdev.h:
>
> #define REQ_ASYNC 0x1
> #define REQ_READ 0x2
> #define REQ_WRITE 0x4
> #define REQ_ABORT 0x8
>
> which unfortunately seem to not be under __KERNEL__ protection, but
> there are things like wait_queue_head_t structs there as well so should
> be safe to change.

Yeah, I hate it when symbols in non-core code doesn't have proper
prefix. Prefixing CODA_ in front of those macros should do it. Jan
Harkes, would that work for CODA?

Thanks.

--
tejun
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