[GIT PULL] tracing: Minor updates for v4.13-rc1

Linus, Three minor updates - Use of the new GFP_RETRY_MAYFAIL to be more aggressive in allocating memory for the ring buffer without causing OOMs - Fix a memory leak in adding and removing instances - Add __rcu annotation to be able to debug RCU usage of function tracing a bit

[GIT PULL] tracing: Minor updates for v4.13-rc1

Linus, Three minor updates - Use of the new GFP_RETRY_MAYFAIL to be more aggressive in allocating memory for the ring buffer without causing OOMs - Fix a memory leak in adding and removing instances - Add __rcu annotation to be able to debug RCU usage of function tracing a bit