tree 4495e4d1aafd5a21ff877ece56e779a5866de47c
parent 62ee81b5681daa781f5e800346ae8654b3e5a864
author Jiunn Chang <c0d1n61at3@gmail.com> 1561669307 -0500
committer Jonathan Corbet <corbet@lwn.net> 1561734640 -0600

doc: RCU callback locks need only _bh, not necessarily _irq

The UP.rst file calls for locks acquired within RCU callback functions
to use _irq variants (spin_lock_irqsave() or similar), which does work,
but can be overkill.  This commit therefore instead calls for _bh variants
(spin_lock_bh() or similar), while noting that _irq does work.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Jiunn Chang <c0d1n61at3@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>