ring-buffer: Fix a bunch of typos in comments (6167c205) · Commits · 戴 / test

kernel/trace/ring_buffer.c

+10 −10

Original line number	Diff line number	Diff line
		@@ -809,7 +809,7 @@ EXPORT_SYMBOL_GPL(ring_buffer_normalize_time_stamp);
		*
		* You can see, it is legitimate for the previous pointer of
		* the head (or any page) not to point back to itself. But only
		* temporarially.
		* temporarily.
		*/

		#define RB_PAGE_NORMAL 0UL
		@@ -906,7 +906,7 @@ static void rb_list_head_clear(struct list_head *list)
		}

		/*
		* rb_head_page_dactivate - clears head page ptr (for free list)
		* rb_head_page_deactivate - clears head page ptr (for free list)
		*/
		static void
		rb_head_page_deactivate(struct ring_buffer_per_cpu *cpu_buffer)
		@@ -1780,7 +1780,7 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size,

		put_online_cpus();
		} else {
		/* Make sure this CPU has been intitialized */
		/* Make sure this CPU has been initialized */
		if (!cpumask_test_cpu(cpu_id, buffer->cpumask))
		goto out;

		@@ -2325,7 +2325,7 @@ rb_update_event(struct ring_buffer_per_cpu *cpu_buffer,

		/*
		* If we need to add a timestamp, then we
		* add it to the start of the resevered space.
		* add it to the start of the reserved space.
		*/
		if (unlikely(info->add_timestamp)) {
		bool abs = ring_buffer_time_stamp_abs(cpu_buffer->buffer);
		@@ -2681,7 +2681,7 @@ trace_recursive_unlock(struct ring_buffer_per_cpu *cpu_buffer)
		* ring_buffer_nest_start - Allow to trace while nested
		* @buffer: The ring buffer to modify
		*
		* The ring buffer has a safty mechanism to prevent recursion.
		* The ring buffer has a safety mechanism to prevent recursion.
		* But there may be a case where a trace needs to be done while
		* tracing something else. In this case, calling this function
		* will allow this function to nest within a currently active
		@@ -2699,7 +2699,7 @@ void ring_buffer_nest_start(struct ring_buffer *buffer)
		preempt_disable_notrace();
		cpu = raw_smp_processor_id();
		cpu_buffer = buffer->buffers[cpu];
		/* This is the shift value for the above recusive locking */
		/* This is the shift value for the above recursive locking */
		cpu_buffer->nest += NESTED_BITS;
		}

		@@ -2718,7 +2718,7 @@ void ring_buffer_nest_end(struct ring_buffer *buffer)
		/* disabled by ring_buffer_nest_start() */
		cpu = raw_smp_processor_id();
		cpu_buffer = buffer->buffers[cpu];
		/* This is the shift value for the above recusive locking */
		/* This is the shift value for the above recursive locking */
		cpu_buffer->nest -= NESTED_BITS;
		preempt_enable_notrace();
		}
		@@ -2907,7 +2907,7 @@ rb_reserve_next_event(struct ring_buffer *buffer,
		* @buffer: the ring buffer to reserve from
		* @length: the length of the data to reserve (excluding event header)
		*
		* Returns a reseverd event on the ring buffer to copy directly to.
		* Returns a reserved event on the ring buffer to copy directly to.
		* The user of this interface will need to get the body to write into
		* and can use the ring_buffer_event_data() interface.
		*
		@@ -3009,7 +3009,7 @@ rb_decrement_entry(struct ring_buffer_per_cpu *cpu_buffer,
		* This function lets the user discard an event in the ring buffer
		* and then that event will not be read later.
		*
		* This function only works if it is called before the the item has been
		* This function only works if it is called before the item has been
		* committed. It will try to free the event from the ring buffer
		* if another event has not been added behind it.
		*
		@@ -4127,7 +4127,7 @@ EXPORT_SYMBOL_GPL(ring_buffer_consume);
		* through the buffer. Memory is allocated, buffer recording
		* is disabled, and the iterator pointer is returned to the caller.
		*
		* Disabling buffer recordng prevents the reading from being
		* Disabling buffer recording prevents the reading from being
		* corrupted. This is not a consuming read, so a producer is not
		* expected.
		*

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