return mapping->flags & __GFP_BITS_MASK; 
return (__force gfp_t)mapping->flags & __GFP_BITS_MASK; 
static inline gfp_t mapping_gfp_mask(struct address_space * mapping){	return mapping->flags & __GFP_BITS_MASK;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/260b23674fdb570f3235ce55892246bef1c24c2a/pagemap.h/clean/include/linux/pagemap.h