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Merge tag 'trace-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

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Pull tracing updates from

 - allow module init functions to be traced

 - clean up some unused or not used by config events (saves space)

 - clean up of trace histogram code

 - add support for preempt and interrupt enabled/disable events

 - other various clean ups

* tag 'trace-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (30 commits)
  tracing, thermal: Hide cpu cooling trace events when not in use
  tracing, thermal: Hide devfreq trace events when not in use
  ftrace: Kill FTRACE_OPS_FL_PER_CPU
  perf/ftrace: Small cleanup
  perf/ftrace: Fix function trace events
  perf/ftrace: Revert ("perf/ftrace: Fix double traces of perf on ftrace:function")
  tracing, dma-buf: Remove unused trace event dma_fence_annotate_wait_on
  tracing, memcg, vmscan: Hide trace events when not in use
  tracing/xen: Hide events that are not used when X86_PAE is not defined
  tracing: mark trace_test_buffer as __maybe_unused
  printk: Remove superfluous memory barriers from printk_safe
  ftrace: Clear hashes of stale ips of init memory
  tracing: Add support for preempt and irq enable/disable events
  tracing: Prepare to add preempt and irq trace events
  ftrace/kallsyms: Have /proc/kallsyms show saved mod init functions
  ftrace: Add freeing algorithm to free ftrace_mod_maps
  ftrace: Save module init functions kallsyms symbols for tracing
  ftrace: Allow module init functions to be traced
  ftrace: Add a ftrace_free_mem() function for modules to use
  tracing: Reimplement log2
  ...
This commit is contained in:
Linus Torvalds
2017-11-17 14:58:01 -08:00
parent b1c2a344cc a96a5037ed
commit 2dcd9c71c1
32 changed files with 903 additions and 518 deletions
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9
include/linux/trace_events.h
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@@ -174,6 +174,11 @@ enum trace_reg {
TRACE_REG_PERF_UNREGISTER,
TRACE_REG_PERF_OPEN,
TRACE_REG_PERF_CLOSE,
/*
* These (ADD/DEL) use a 'boolean' return value, where 1 (true) means a
* custom action was taken and the default action is not to be
* performed.
*/
TRACE_REG_PERF_ADD,
TRACE_REG_PERF_DEL,
#endif
@@ -542,9 +547,9 @@ void perf_trace_run_bpf_submit(void *raw_data, int size, int rctx,
static inline void
perf_trace_buf_submit(void *raw_data, int size, int rctx, u16 type,
u64 count, struct pt_regs *regs, void *head,
struct task_struct *task, struct perf_event *event)
struct task_struct *task)
{
perf_tp_event(type, count, raw_data, size, regs, head, rctx, task, event);
perf_tp_event(type, count, raw_data, size, regs, head, rctx, task);
}
#endif