Re: where could I find the definition of PageSwapBacked()

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On Sat, Jan 23, 2010 at 11:38:28AM +0700, Mulyadi Santosa wrote:
> Hi everybody
> 
> As the subject says, anybody could kindly point me to the
> PageSwapBacked() definition? I use cscope, lxr....no use at all. I am
> guessing, it could be a function that is composed by somekind of gcc
> macro, but I am not sure.
>
Hi Mulyadi,

The file mm-flags.h defines a set of macros like

#define TESTPAGEFLAG(uname, lname)					\
static inline int Page##uname(struct page *page) 			\
			{ return test_bit(PG_##lname, &page->flags); }

This macro creates the function you are lookign for. PG_swapbacked is the
bit for marking if page is backed by swap. I believe ##uname of swapbacked
is equivalent to SwapBacked and similarly lname is swapbacked itself.

HTH

Regards
Himanshu

 
> -- 
> regards,
> 
> Mulyadi Santosa
> Freelance Linux trainer and consultant
> 
> blog: the-hydra.blogspot.com
> training: mulyaditraining.blogspot.com
> 
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