Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 9963185c authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

documentation: Add pointer to percpu-ref for RCU and refcount 



Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: default avatarJosh Triplett <josh@joshtriplett.org>
Reviewed-by: default avatarLai Jiangshan <laijs@cn.fujitsu.com>
parent 128ea442

Documentation/RCU/rcuref.txt

+9 −0
Original line number Diff line number Diff line 
Reference-count design for elements of lists/arrays protected by RCU.





Please note that the percpu-ref feature is likely your first

stop if you need to combine reference counts and RCU.  Please see

include/linux/percpu-refcount.h for more information.  However, in

those unusual cases where percpu-ref would consume too much memory,

please read on.



------------------------------------------------------------------------



Reference counting on elements of lists which are protected by traditional

reader/writer spinlocks or semaphores are straightforward: