ahash_request

函数名称：ahash_request_alloc() - allocate request data structure*@tfm: cipher handle to be registered with the request*@gfp: memory allocation flag that is handed to kmalloc by the API call.* Allocate the request data structure that must be used with the ahash

函数原型：static inline struct ahash_request *ahash_request_alloc(struct crypto_ahash *tfm, gfp_t gfp)

返回类型：struct ahash_request

参数：

类型	参数	名称
struct crypto_ahash *	tfm
gfp_t	gfp

**调用者**
名称	描述
ima_calc_file_hash_atfm
calc_buffer_ahash_atfm
build_merkle_tree	Build the Merkle tree for the given inode using the given parameters, and* return the root hash in @root_hash.* The tree is written to a filesystem-specific location as determined by the* ->write_merkle_tree_block() method
fsverity_prepare_hash_state	sverity_prepare_hash_state() - precompute the initial hash state@alg: hash algorithm@salt: a salt which is to be prepended to all data to be hashed@salt_size: salt size in bytes, possibly 0 Return: NULL if the salt is empty, otherwise the kmalloc()'ed
fsverity_hash_buffer	sverity_hash_buffer() - hash some data@alg: the hash algorithm to use@data: the data to hash@size: size of data to hash, in bytes@out: output digest, size 'alg->digest_size' bytes* Hash some data which is located in physically contiguous memory (i
fsverity_verify_page	sverity_verify_page() - verify a data page* Verify a page that has just been read from a verity file. The page must be a* pagecache page that is still locked and not yet uptodate.* Return: true if the page is valid, else false.
fsverity_verify_bio	sverity_verify_bio() - verify a 'read' bio that has just completed* Verify a set of pages that have just been read from a verity file. The pages* must be pagecache pages that are still locked and not yet uptodate. Pages

函数逻辑报告