Re: [RFC] remove implicit slab.h inclusion from percpu.h

[Tejun Heo <tj@kernel.org>]

Hello,

On 03/16/2010 03:54 PM, Tejun Heo wrote:
> Maybe a better way is to grab for slab API usages in .c files which
> don't have slab.h inclusion.  If breaking the dependency is the way to
> go, I can definitely write up some scripts and do test builds on some
> archs.  There sure will be some fallouts but I think it won't be too
> bad.

Hmmm... here are some interesting numbers.  Not completely exact but
should give the general ballpark idea.

all .c files					: 13999
.c files which use any of slab interface	:  5603
.c files which include slab.h			:  2519
.c files which include slab.h but don't use it	:   577
.c files which use slab but don't include it	:  3661

.c files with k[mzc]alloc/k[z]free usage	:  5291
.c files with other slab interface usage	:   356

C files which use k[mzc]alloc/k[z]free covers ~38% of all c files.
One possibility is to separate out those into kmalloc.h and make it
available universally via kernel.h.

Thanks.

-- 
tejun