[LU-18888] Pass &init_task to prepare_kernel_cred()

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.17.0
• Severity: 3
• Assignee: Shaun Tancheff
• Reporter: Shaun Tancheff

Description

LU-14296 lnet: use an unbound cred in kiblnd_resolve_addr()

Unfortunately NULL is not a valid argument to prepare_kernel_cred() as of v6.1-rc1-12-g5a17f040fa33

Old: prepare_kernel_cred()

struct cred *prepare_kernel_cred(struct task_struct *daemon)
{
...
	if (daemon)
		old = get_task_cred(daemon);
	else
		old = get_cred(&init_cred);
...

Old:

cred = prepare_kernel_cred(NULL);

New:

cred = prepare_kernel_cred(&init_task);

Where the new convention is provides the same result for all lustre client kernels (2.6.28 and newer)