Change Details

list_for_each_entry_lockless as it has compiler barriers requred to safely run concurrently with the _rcu list-mutation primitives such as list_add_rcu(). On Linux list_for_each_entry_rcu has additional diagnostic checks as compared with list_for_each_entry_lockless which FreeBSD does not implements, so for us they both are equal. Also move the macro to linux/rculist.h where it should reside.

so this list-traversal primitive may safely run concurrently with the _rcu list-mutation primitives such as list_add_rcu() as long as the traversal is guarded by rcu_read_lock(). Do it with reusing of list_for_each_entry_rcu macro which does the same. On Linux it implements some additional lockdep stuff which we skip. Also move the macro to linux/rculist.h where it resides on Linux.

list_for_each_entry_lockless as it has compiler barriers requredso this list-traversal primitive may safely run concurrently with to safely run concurrently with the _rcuthe _rcu list-mutation primitives such as list-mutation primitives_add_rcu() such as list_add_rcuas long as the traversal is guarded by rcu_read_lock(). On LinuxDo it with reusing of list_for_each_entry_rcu has additional diagnostic checks asmacro which compared with list_for_each_entry_lockless which FreeBSD does notdoes the same. On Linux it implements some additional implements, so for us they both are equallockdep stuff which we skip. Also move the macro to linux/rculist.h where it should resideresides on Linux.