linux-kernel - Re: linux-next: Tree for August 6 (block git tree)

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Date:	Tue, 10 Aug 2010 12:07:50 -0400
From:	Jens Axboe <axboe@...nel.dk>
To:	Randy Dunlap <randy.dunlap@...cle.com>
CC:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: Tree for August 6 (block git tree)

On 08/10/2010 11:59 AM, Randy Dunlap wrote:
> On Tue, 10 Aug 2010 11:56:34 -0400 Jens Axboe wrote:
> 
>> On 08/10/2010 11:54 AM, Randy Dunlap wrote:
>>> On 08/10/10 08:51, Jens Axboe wrote:
>>>> On 08/10/2010 11:37 AM, Randy Dunlap wrote:
>>>>> On Fri, 06 Aug 2010 12:06:00 -0700 Randy Dunlap wrote:
>>>>>
>>>>>> On 08/06/10 12:04, Randy Dunlap wrote:
>>>>>>> On Fri, 6 Aug 2010 13:27:58 +1000 Stephen Rothwell wrote:
>>>>>>>
>>>>>>>> Hi all,
>>>>>>>>
>>>>>>>> As the merge window is open, please do not add 2.6.37 material to your
>>>>>>>> linux-next included trees until after 2.6.36-rc1.
>>>>>>>>
>>>>>>>> Changes since 20100805:
>>>>>>>>
>>>>>>>> The block tree lost its build failure and a conflict.
>>>>>>>
>>>>>>>
>>>>>>> Lots of source files now need <linux/blk_types.h>:
>>>>>>>
>>>>>>> mm/filemap.c:2164: error: 'REQ_WRITE' undeclared
>>>>>>> fs/read_write.c:362: error: 'REQ_WRITE' undeclared
>>>>>>> fs/splice.c:1108: error: 'REQ_WRITE' undeclared
>>>>>>> fs/aio.c:1496: error: 'REQ_WRITE' undeclared
>>>>>>> drivers/memstick/core/memstick.c:272: error: 'REQ_WRITE' undeclared
>>>>>>> drivers/memstick/host/tifm_ms.c:218: error: 'REQ_WRITE' undeclared
>>>>>>> drivers/memstick/host/jmb38x_ms.c:333: error: 'REQ_WRITE' undeclared
>>>>>>> drivers/staging/spectra/ffsport.c:277: error: 'REQ_TYPE_LINUX_BLOCK' undeclared
>>>>>>> fs/compat.c:1274: error: 'REQ_WRITE' undeclared
>>>>>>
>>>>>>
>>>>>> Sorry, I see that this has already been fixed.
>>>>>
>>>>> s/fixed/addressed/  but not yet merged into linux-next.
>>>>> Can we get that fixed, please?
>>>>
>>>> Which patch are you referencing?
>>>
>>> Hi Jens,
>>>
>>> Maybe I misread last week's email about linux/blk_types.h.
>>> (It was about being exported, not about being #included.)
>>>
>>> There are still lots of these files that have the errors listed above.
>>> Has there been a patch for those?
>>
>> What's the .config?
> 
> I have a bunch of them that fail.  Here are 2 of them,
> one with CONFIG_BLOCK=y and one with CONFIG_BLOCK=n.
> 
> I can give you more if you want them.

Looks like the types are badly hidden behind CONFIG_BLOCK.
So this should fix the CONFIG_BLOCK=n part at least. What
was the compile error with CONFIG_BLOCK=y?

diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 1185237..5369177 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -108,6 +108,8 @@ struct bio {
 #define BIO_POOL_MASK		(1UL << BIO_POOL_OFFSET)
 #define BIO_POOL_IDX(bio)	((bio)->bi_flags >> BIO_POOL_OFFSET)
 
+#endif /* CONFIG_BLOCK */
+
 /*
  * Request flags.  For use in the cmd_flags field of struct request, and in
  * bi_rw of struct bio.  Note that some flags are only valid in either one.
@@ -189,5 +191,4 @@ enum rq_flag_bits {
 #define REQ_IO_STAT		(1 << __REQ_IO_STAT)
 #define REQ_MIXED_MERGE		(1 << __REQ_MIXED_MERGE)
 
-#endif /* CONFIG_BLOCK */
 #endif /* __LINUX_BLK_TYPES_H */

-- 
Jens Axboe

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