populate_error_injection

Name:Lookup and populate the error_injection_list.* For safety reasons we only allow certain functions to be overridden with* bpf_error_injection, so we need to populate the list of the symbols that have* been marked as safe for overriding.

Proto:static void populate_error_injection_list(struct error_injection_entry *start, struct error_injection_entry *end, void *priv)

Type:void

Parameter:

Type	Parameter	Name
struct error_injection_entry *	start
struct error_injection_entry *	end
void *	priv

offset = 0 , size = 0

mutex_lock( & ei_mutex)

When iter < end cycle

entry = arch_deref_entry_point((void * )addr)

If Not kernel_text_address(entry) || Not Lookup an address but don't bother to find any names. Then

pr_err("Failed to find error inject entry at %p\n", (void * )entry)

Continue

ent = kmalloc( size of ent , GFP_KERNEL)

If Not ent Then Break

start_addr = entry

end_addr = entry + size

etype = etype

priv = priv

Initialization list head

list_add_tail - add a new entry*@new: new entry to be added*@head: list head to add it before* Insert a new entry before the specified head.* This is useful for implementing queues.

mutex_unlock( & ei_mutex)

**Caller**
Name	Describe
populate_kernel_ei_list
module_load_ei_list

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Function report