Jim Harris f71fed216c blobfs: add trace events
For now, just do events for open, close and start/end
for writing the length xattr.  These will be useful for
debugging the intermittent RocksDB failures.

Note these events may only be recorded on the polling
SPDK thread.  SPDK events cannot be recorded on
non-SPDK threads (i.e. RocksDB user or background threads).

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I72fb302db23b399f583f56194c237340587f3027

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452262
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
2019-05-01 17:10:43 +00:00
..
2019-05-01 17:10:43 +00:00
2019-04-02 21:40:21 +00:00