1. NAME▲

list_empty_careful - tests whether a list is empty and not being modified

2. SYNOPSIS ▲

int list_empty_careful(const struct list_head *  head );

3. ARGUMENTS ▲

head
    the list to test

4. DESCRIPTION ▲

tests whether a list is empty _and_ checks that no other CPU might be in the process of modifying either member (next or prev)

5. NOTE ▲

using list_empty_careful without synchronization can only be safe if the only activity that can happen to the list entry is list_del_init. Eg. it cannot be used if another CPU could re-list_add it.

6. COPYRIGHT ▲