diff options
author | Ingo Molnar <mingo@kernel.org> | 2018-12-04 01:52:30 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2018-12-04 01:52:30 -0500 |
commit | 4bbfd7467cfc7d42e18d3008fa6a28ffd56e901a (patch) | |
tree | 3b6d27e740976d0393fd13ae675ae6a0e07812a9 /kernel/livepatch/patch.c | |
parent | 2595646791c319cadfdbf271563aac97d0843dc7 (diff) | |
parent | 5ac7cdc29897e5fc3f5e214f3f8c8b03ef8d7029 (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/patch.c')
-rw-r--r-- | kernel/livepatch/patch.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/livepatch/patch.c b/kernel/livepatch/patch.c index 82d584225dc6..7702cb4064fc 100644 --- a/kernel/livepatch/patch.c +++ b/kernel/livepatch/patch.c | |||
@@ -61,7 +61,7 @@ static void notrace klp_ftrace_handler(unsigned long ip, | |||
61 | ops = container_of(fops, struct klp_ops, fops); | 61 | ops = container_of(fops, struct klp_ops, fops); |
62 | 62 | ||
63 | /* | 63 | /* |
64 | * A variant of synchronize_sched() is used to allow patching functions | 64 | * A variant of synchronize_rcu() is used to allow patching functions |
65 | * where RCU is not watching, see klp_synchronize_transition(). | 65 | * where RCU is not watching, see klp_synchronize_transition(). |
66 | */ | 66 | */ |
67 | preempt_disable_notrace(); | 67 | preempt_disable_notrace(); |
@@ -72,7 +72,7 @@ static void notrace klp_ftrace_handler(unsigned long ip, | |||
72 | /* | 72 | /* |
73 | * func should never be NULL because preemption should be disabled here | 73 | * func should never be NULL because preemption should be disabled here |
74 | * and unregister_ftrace_function() does the equivalent of a | 74 | * and unregister_ftrace_function() does the equivalent of a |
75 | * synchronize_sched() before the func_stack removal. | 75 | * synchronize_rcu() before the func_stack removal. |
76 | */ | 76 | */ |
77 | if (WARN_ON_ONCE(!func)) | 77 | if (WARN_ON_ONCE(!func)) |
78 | goto unlock; | 78 | goto unlock; |