sg_set_page

函数名称：sg_set_page - Set sg entry to point at given page*@sg: SG entry*@page: The page*@len: Length of data*@offset: Offset into page* Description:* Use this function to set an sg entry pointing at a page, never assign* the page directly

函数原型：static inline void sg_set_page(struct scatterlist *sg, struct page *page, unsigned int len, unsigned int offset)

返回类型：void

参数：

类型	参数	名称
struct scatterlist *	sg
struct page *	page
unsigned int	len
unsigned int	offset

**调用者**
名称	描述
__sg_alloc_table_from_pages	__sg_alloc_table_from_pages - Allocate and initialize an sg table from* an array of pages@sgt: The sg table header to use@pages: Pointer to an array of page pointers@n_pages: Number of pages in the pages array@offset: Offset from start of the first
setup_sgl_buf
dma_common_get_sgtable	Create scatter-list for the already allocated DMA buffer.
dma_direct_get_sgtable
blk_bvec_map_sg
__blk_bvec_map_sg
blk_rq_map_sg	map a request to scatterlist, return number of sg entries setup. Caller* must make sure sg can hold rq->nr_phys_segments entries
blk_rq_map_integrity_sg	lk_rq_map_integrity_sg - Map integrity metadata into a scatterlist@q: request queue@bio: bio with integrity metadata attached@sglist: target scatterlist Description: Map the integrity vectors in request into a* scatterlist
big_key_alloc_buffer	Allocate a buffer consisting of a set of pages with a virtual mapping* applied over them.
derived_key_encrypt	Before returning data to userspace, encrypt decrypted data.
fscrypt_crypt_block	Encrypt or decrypt a single filesystem block of file contents
fsverity_hash_page	sverity_hash_page() - hash a single data or hash page@params: the Merkle tree's parameters@inode: inode for which the hashing is being done@req: preallocated hash request@page: the page to hash*@out: output digest, size 'params->digest_size' bytes
sg_set_buf	设置sg数据入口
sk_msg_page_add

函数逻辑报告