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authorIngo Molnar <mingo@kernel.org>2018-12-04 01:52:30 -0500
committerIngo Molnar <mingo@kernel.org>2018-12-04 01:52:30 -0500
commit4bbfd7467cfc7d42e18d3008fa6a28ffd56e901a (patch)
tree3b6d27e740976d0393fd13ae675ae6a0e07812a9 /kernel/livepatch/transition.c
parent2595646791c319cadfdbf271563aac97d0843dc7 (diff)
parent5ac7cdc29897e5fc3f5e214f3f8c8b03ef8d7029 (diff)
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU changes from Paul E. McKenney: - Convert RCU's BUG_ON() and similar calls to WARN_ON() and similar. - Replace calls of RCU-bh and RCU-sched update-side functions to their vanilla RCU counterparts. This series is a step towards complete removal of the RCU-bh and RCU-sched update-side functions. ( Note that some of these conversions are going upstream via their respective maintainers. ) - Documentation updates, including a number of flavor-consolidation updates from Joel Fernandes. - Miscellaneous fixes. - Automate generation of the initrd filesystem used for rcutorture testing. - Convert spin_is_locked() assertions to instead use lockdep. ( Note that some of these conversions are going upstream via their respective maintainers. ) - SRCU updates, especially including a fix from Dennis Krein for a bag-on-head-class bug. - RCU torture-test updates. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/livepatch/transition.c')
-rw-r--r--kernel/livepatch/transition.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/livepatch/transition.c b/kernel/livepatch/transition.c
index 5bc349805e03..304d5eb8a98c 100644
--- a/kernel/livepatch/transition.c
+++ b/kernel/livepatch/transition.c
@@ -52,7 +52,7 @@ static DECLARE_DELAYED_WORK(klp_transition_work, klp_transition_work_fn);
52 52
53/* 53/*
54 * This function is just a stub to implement a hard force 54 * This function is just a stub to implement a hard force
55 * of synchronize_sched(). This requires synchronizing 55 * of synchronize_rcu(). This requires synchronizing
56 * tasks even in userspace and idle. 56 * tasks even in userspace and idle.
57 */ 57 */
58static void klp_sync(struct work_struct *work) 58static void klp_sync(struct work_struct *work)
@@ -175,7 +175,7 @@ void klp_cancel_transition(void)
175void klp_update_patch_state(struct task_struct *task) 175void klp_update_patch_state(struct task_struct *task)
176{ 176{
177 /* 177 /*
178 * A variant of synchronize_sched() is used to allow patching functions 178 * A variant of synchronize_rcu() is used to allow patching functions
179 * where RCU is not watching, see klp_synchronize_transition(). 179 * where RCU is not watching, see klp_synchronize_transition().
180 */ 180 */
181 preempt_disable_notrace(); 181 preempt_disable_notrace();