Subject: Re: 2.6.23-rc1: BUG_ON in kmap_atomic_prot()

From: Sam Ravnborg <[email-masked]>
Date: Mon, 23 Jul 2007 23:37:19 +0200

> 
> For example, missing from the call graph is
> 
> 	get_page_from_freelist ->
> 	  buffered_rmqueue ->		[ missing - inlined ]
> 	    prep_new_page ->		[ missing - inlined ]
> 	      prep_zero_page ->		[ missing - inlined ]
> 		clear_highpage ->	[ missing - inlined ]
> 		  kmap_atomic ->	[ missing - tailcall ]
> 		    kmap_atomic_prot
> 
> (and I'm also pretty sure gcc 
> is overly aggressive at inlining, and that it causes us pain for 
> debugging, but whatever)

mm/page_alloc.c:static inline void prep_zero_page(struct page *page, int order, gfp_t gfp_flags)
include/linux/highmem.h:static inline void clear_highpage(struct page *page)

So at least two was explicit marked inline.
Now if that made I change i dunno.

	Sam