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(parent: 62ee81b) | patch
doc: RCU callback locks need only _bh, not necessarily _irq
authorJiunn Chang <c0d1n61at3@gmail.com>
Thu, 27 Jun 2019 21:01:47 +0000 (16:01 -0500)
committerJonathan Corbet <corbet@lwn.net>
Fri, 28 Jun 2019 15:10:40 +0000 (09:10 -0600)
commitacb6258acc4fbb76449eec6d0c7ca25254671e31
tree4495e4d1aafd5a21ff877ece56e779a5866de47ctree | snapshot
parent62ee81b5681daa781f5e800346ae8654b3e5a864commit | diff
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>
Documentation/RCU/UP.rst diff | blob | history
Domain: System / Kernel;