29 static inline unsigned int scatterwalk_pagelen(struct scatter_walk *walk)  in scatterwalk_pagelen()  argument
31 	unsigned int len = walk->sg->offset + walk->sg->length - walk->offset;  in scatterwalk_pagelen()
32 	unsigned int len_this_page = offset_in_page(~walk->offset) + 1;  in scatterwalk_pagelen()
36 static inline unsigned int scatterwalk_clamp(struct scatter_walk *walk,  in scatterwalk_clamp()  argument
39 	unsigned int len_this_page = scatterwalk_pagelen(walk);  in scatterwalk_clamp()
43 static inline void scatterwalk_advance(struct scatter_walk *walk,  in scatterwalk_advance()  argument
46 	walk->offset += nbytes;  in scatterwalk_advance()
49 static inline struct page *scatterwalk_page(struct scatter_walk *walk)  in scatterwalk_page()  argument
51 	return sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);  in scatterwalk_page()
59 static inline void scatterwalk_start(struct scatter_walk *walk,  in scatterwalk_start()  argument
62 	walk->sg = sg;  in scatterwalk_start()
63 	walk->offset = sg->offset;  in scatterwalk_start()
66 static inline void *scatterwalk_map(struct scatter_walk *walk)  in scatterwalk_map()  argument
68 	return kmap_atomic(scatterwalk_page(walk)) +  in scatterwalk_map()
69 	       offset_in_page(walk->offset);  in scatterwalk_map()
72 static inline void scatterwalk_pagedone(struct scatter_walk *walk, int out,  in scatterwalk_pagedone()  argument
78 		page = sg_page(walk->sg) + ((walk->offset - 1) >> PAGE_SHIFT);  in scatterwalk_pagedone()
82 	if (more && walk->offset >= walk->sg->offset + walk->sg->length)  in scatterwalk_pagedone()
83 		scatterwalk_start(walk, sg_next(walk->sg));  in scatterwalk_pagedone()
86 static inline void scatterwalk_done(struct scatter_walk *walk, int out,  in scatterwalk_done()  argument
89 	if (!more || walk->offset >= walk->sg->offset + walk->sg->length ||  in scatterwalk_done()
90 	    !(walk->offset & (PAGE_SIZE - 1)))  in scatterwalk_done()
91 		scatterwalk_pagedone(walk, out, more);  in scatterwalk_done()
94 void scatterwalk_copychunks(void *buf, struct scatter_walk *walk,
96 void *scatterwalk_map(struct scatter_walk *walk);