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| author | Paul E. McKenney | 2018-11-07 23:16:57 +0100 |
|---|---|---|
| committer | Paul E. McKenney | 2018-12-01 21:38:50 +0100 |
| commit | 6932689e4145f545062ca8c86cf76f38854d63d0 (patch) | |
| tree | 49aaaa1e34aab31830da715e073d4510880030cc /kernel/livepatch/transition.c | |
| parent | cgroups: Replace synchronize_sched() with synchronize_rcu() (diff) | |
| download | kernel-qcow2-linux-6932689e4145f545062ca8c86cf76f38854d63d0.tar.gz kernel-qcow2-linux-6932689e4145f545062ca8c86cf76f38854d63d0.tar.xz kernel-qcow2-linux-6932689e4145f545062ca8c86cf76f38854d63d0.zip | |
livepatch: Replace synchronize_sched() with synchronize_rcu()
Now that synchronize_rcu() waits for preempt-disable regions of code
as well as RCU read-side critical sections, synchronize_sched() can be
replaced by synchronize_rcu(). This commit therefore makes this change,
even though it is but a comment.
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'kernel/livepatch/transition.c')
| -rw-r--r-- | kernel/livepatch/transition.c | 4 |
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); /* * This function is just a stub to implement a hard force - * of synchronize_sched(). This requires synchronizing + * of synchronize_rcu(). This requires synchronizing * tasks even in userspace and idle. */ static void klp_sync(struct work_struct *work) @@ -175,7 +175,7 @@ void klp_cancel_transition(void) void klp_update_patch_state(struct task_struct *task) { /* - * A variant of synchronize_sched() is used to allow patching functions + * A variant of synchronize_rcu() is used to allow patching functions * where RCU is not watching, see klp_synchronize_transition(). */ preempt_disable_notrace(); |