Searched refs:head_page (Results 1 - 2 of 2) sorted by relevance

/netgear-R7000-V1.0.7.12_1.2.5/components/opensource/linux/linux-2.6.36/kernel/trace/
H A Dring_buffer.c442 * head_page == tail_page && head == tail then buffer is empty.
452 struct buffer_page *head_page; /* read from head */ member in struct:ring_buffer_per_cpu
490 struct buffer_page *head_page; member in struct:ring_buffer_iter
633 * Because the reader may move the head_page pointer, we can
686 head = cpu_buffer->head_page;
784 if (RB_WARN_ON(cpu_buffer, !cpu_buffer->head_page))
792 page = head = cpu_buffer->head_page;
802 cpu_buffer->head_page = page;
1049 cpu_buffer->head_page
1051 cpu_buffer->tail_page = cpu_buffer->commit_page = cpu_buffer->head_page;
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H A Dtrace.h445 extern void *head_page(struct trace_array_cpu *data);

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