put_cred

类型	参数	名称
const struct cred *	_cred

**调用者**
名称	描述
rdtgroup_task_write_permission
ksys_unshare	share allows a process to 'unshare' part of the process* context which was originally shared using clone. copy_** functions used by do_fork() cannot be used here directly* because they modify an inactive task_struct that is being* constructed
__ptrace_unlink	__ptrace_unlink - unlink ptracee and restore its execution state@child: ptracee to be unlinked Remove @child from the ptrace list, move it back to the original parent,* and restore the execution state so that it conforms to the group stop* state
exit_creds	Clean up a task's credentials when it exits
copy_creds	复制信任
commit_creds	mmit_creds - Install new credentials upon the current task@new: The credentials to be assigned Install a new set of credentials to the current task, using RCU to replace* the old set. Both the objective and the subjective credentials pointers are
abort_creds	abort_creds - Discard a set of credentials and unlock the current task@new: The credentials that were going to be applied Discard a set of credentials that were under construction and unlock the* current task.
revert_creds	vert_creds - Revert a temporary subjective credentials override@old: The credentials to be restored Revert a temporary set of override subjective credentials to an old set,* discarding the override set.
prepare_kernel_cred	prepare_kernel_cred - Prepare a set of credentials for a kernel service@daemon: A userspace daemon to be used as a reference Prepare a set of credentials for a kernel service
__cgroup1_procs_write
unshare_userns
keyctl_session_to_parent	Attempt to install the calling process's session keyring on the process's* parent process.* The keyring must exist and must grant the caller LINK permission, and the* parent process must be single-threaded and must have the same effective
lookup_user_key	Look up a key ID given us by userspace with a given permissions mask to get* the key it refers to.* Flags can be passed to request that special keyrings be created if referred* to directly, to permit partially constructed keys to be found and to skip
key_change_session_keyring	Replace a process's session keyring on behalf of one of its children when* the target process is about to resume userspace execution.
call_sbin_request_key	Request userspace finish the construction of a key* - execute "/sbin/request-key "
free_request_key_auth
aa_change_hat	aa_change_hat - change hat to/from subprofile@hats: vector of hat names to try changing into (MAYBE NULL if @count == 0)@count: number of hat names in @hats@token: magic value to validate the hat change@flags: flags affecting behavior of the change
apparmor_getprocattr
do_faccessat	access() needs to use the real uid/gid, not the effective uid/gid.* We do this by temporarily clearing all FS-related capabilities and* switching the fsuid/fsgid around to the real ones.
file_free_rcu
put_fs_context	put_fs_context - Dispose of a superblock configuration context.*@fc: The context to dispose of.
io_ring_ctx_free
do_coredump

函数逻辑报告