LIST_EMPTY_CAREFUL - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2.6.
Note : Data Types
NAMElist_empty_careful − tests whether a list is empty and not being modified
SYNOPSISint list_empty_careful(const struct list_head * head);
ARGUMENTShead the list to test
DESCRIPTIONtests whether a list is empty _and_ checks that no other CPU might be in the process of modifying either member (next or prev)
NOTEusing 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.
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