Question about build md.c in the kernel source tree

Question about build md.c in the kernel source tree

[Zhikun Wang]

Hi:
	I am reading linux software RAID(MD) source code. I want to add some "printk" information in the md.c file. But md.c has been build in the kernel. How can i only build the md.c file without building the whole kernel source tree? 
	Thanks a lot!

																								zkwang
  

Re: Question about build md.c in the kernel source tree

[Neil Brown]

On Monday March 27, raidwang@gmail.com wrote:
> Hi:
> 	I am reading linux software RAID(MD) source code. I want to add some "printk" information in the md.c file. But md.c has been build in the kernel. How can i only build the md.c file without building the whole kernel source tree? 
> 	Thanks a lot!

Edit .config
remove the line
          CONFIG_BLK_DEV_MD=y
run 'make oldconfig'
When it asks you about the md driver and 'm' for module rather than
'y' for yes.

Then md will be built as a module, producing md_mod.ko and raid*.ko.
These can then be loaded into the running kernel with 'insmod' and
removed with 'rmmod'.

NeilBrown


> 
> 																								zkwang
>   
> 
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Re: Question about build md.c in the kernel source tree

[Ming Zhang]

* pls add a text wrap at ~80 in u email client.

* once u build whole kernel once, and u only make change in md.c, u can
do kernel redo and make process will automatically only rebuild md.c.
then u install the new kernel and check u changes.

ming


On Mon, 2006-03-27 at 16:19 +0800, Zhikun Wang wrote:
> Hi:
> 	I am reading linux software RAID(MD) source code. I want to add some "printk" information in the md.c file. But md.c has been build in the kernel. How can i only build the md.c file without building the whole kernel source tree? 
> 	Thanks a lot!
> 
> 																								zkwang
>   
> 
> -
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html