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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2021-08-03 16:16:19 +0200
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-08-17 15:47:14 -0400
commit99c37d1a63eafcd3673302a7953df760b46d0f6f (patch)
tree647124a3fdf14f13aaa3d1d947d4af1067bb33d9 /kernel/trace/ring_buffer.c
parentdb396be6ddc4b953db3a725e19945fd4f151cfe9 (diff)
downloadlinux-99c37d1a63eafcd3673302a7953df760b46d0f6f.tar.bz2
tracing: Replace deprecated CPU-hotplug functions.
The functions get_online_cpus() and put_online_cpus() have been deprecated during the CPU hotplug rework. They map directly to cpus_read_lock() and cpus_read_unlock(). Replace deprecated CPU-hotplug functions with the official version. The behavior remains unchanged. Link: https://lkml.kernel.org/r/20210803141621.780504-37-bigeasy@linutronix.de Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
-rw-r--r--kernel/trace/ring_buffer.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index e592d1df6f88..c5a3fbf19617 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2111,7 +2111,7 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size,
}
}
- get_online_cpus();
+ cpus_read_lock();
/*
* Fire off all the required work handlers
* We can't schedule on offline CPUs, but it's not necessary
@@ -2143,7 +2143,7 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size,
cpu_buffer->nr_pages_to_update = 0;
}
- put_online_cpus();
+ cpus_read_unlock();
} else {
cpu_buffer = buffer->buffers[cpu_id];
@@ -2171,7 +2171,7 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size,
goto out_err;
}
- get_online_cpus();
+ cpus_read_lock();
/* Can't run something on an offline CPU. */
if (!cpu_online(cpu_id))
@@ -2183,7 +2183,7 @@ int ring_buffer_resize(struct trace_buffer *buffer, unsigned long size,
}
cpu_buffer->nr_pages_to_update = 0;
- put_online_cpus();
+ cpus_read_unlock();
}
out: