Steven Rostedt 8789a9e7df ring-buffer: read page interface ... Impact: new API to ring buffer This patch adds a new interface into the ring buffer that allows a page to be read from the ring buffer on a given CPU. For every page read, one must also be given to allow for a "swap" of the pages. rpage = ring_buffer_alloc_read_page(buffer); if (!rpage) goto err; ret = ring_buffer_read_page(buffer, &rpage, cpu, full); if (!ret) goto empty; process_page(rpage); ring_buffer_free_read_page(rpage); The caller of these functions must handle any waits that are needed to wait for new data. The ring_buffer_read_page will simply return 0 if there is no data, or if "full" is set and the writer is still on the current page. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2008-12-03 08:56:21 +01:00
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ftrace.c	Merge branches 'tracing/ftrace' and 'tracing/function-graph-tracer' into tracing/core	2008-12-03 08:49:21 +01:00
Kconfig
Makefile
ring_buffer.c	ring-buffer: read page interface	2008-12-03 08:56:21 +01:00
trace.c	ftrace: replace raw_local_irq_save with local_irq_save	2008-12-03 08:56:19 +01:00
trace.h
trace_boot.c
trace_branch.c	ftrace: replace raw_local_irq_save with local_irq_save	2008-12-03 08:56:19 +01:00
trace_bts.c
trace_functions.c
trace_functions_graph.c
trace_irqsoff.c
trace_mmiotrace.c
trace_nop.c
trace_power.c
trace_sched_switch.c
trace_sched_wakeup.c
trace_selftest.c
trace_selftest_dynamic.c
trace_stack.c	ftrace: replace raw_local_irq_save with local_irq_save	2008-12-03 08:56:19 +01:00
trace_sysprof.c