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| author | Shaohua Li <shli@fb.com> | 2017-07-12 20:49:56 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-07-29 17:00:03 +0200 |
| commit | 35fe6d763229e8fc0eb5f9b93a401673cfcb5e1e (patch) | |
| tree | ea38b526a62121671ef7bfff76f7d23e29804b42 /kernel/trace/Kconfig | |
| parent | blktrace: add an option to allow displaying cgroup path (diff) | |
| download | linux-35fe6d763229e8fc0eb5f9b93a401673cfcb5e1e.tar.xz linux-35fe6d763229e8fc0eb5f9b93a401673cfcb5e1e.zip | |
block: use standard blktrace API to output cgroup info for debug notes
Currently cfq/bfq/blk-throttle output cgroup info in trace in their own
way. Now we have standard blktrace API for this, so convert them to use
it.
Note, this changes the behavior a little bit. cgroup info isn't output
by default, we only do this with 'blk_cgroup' option enabled. cgroup
info isn't output as a string by default too, we only do this with
'blk_cgname' option enabled. Also cgroup info is output in different
position of the note string. I think these behavior changes aren't a big
issue (actually we make trace data shorter which is good), since the
blktrace note is solely for debugging.
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'kernel/trace/Kconfig')
0 files changed, 0 insertions, 0 deletions