On Thu, 10 Nov 2011, Andrea Arcangeli wrote:

Before after won't matter much I guess... If you really want to clean
the code, I wonder what is exactly the point of those dummy functions
if we can't call those outside of #ifdefs.

You can, you just need to declare the actuals that you pass to the dummy 
functions for CONFIG_SYSFS=n as well.  Or, convert the dummy functions to 
do

	#define sysfs_remove_group(kobj, grp) do {} while (0)

but good luck getting that passed Andrew :)

I mean a cleanup that adds
more #ifdefs when there are explicit dummy functions which I assume
are meant to be used outside of #ifdef CONFIG_SYSFS doesn't sound so
clean in the first place. I understand you need to refactor the code
above to call those outside of #ifdefs but hey if you're happy with
#ifdef I'm happy too :). It just looks fishy to read sysfs.h dummy
functions and #ifdefs. When I wrote the code I hardly could have
wondered about the sysfs #ifdefs but at this point it's only cleanups
I'm seeing so I actually noticed that.

The cleaniest solution would probably be to just extract all the calls 
that depend on CONFIG_SYSFS out of hugepage_init(), call it 
hugepage_sysfs_init(), and then return a failure code if it fails to setup 
then do the error handling there.  hugepage_sysfs_init() would be defined 
right after the attributes are defined.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>