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| author |   Tejun Heo <tj@kernel.org> | 2018-05-18 08:47:13 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2018-05-18 08:47:13 -0700 |
| commit | 1258fae73c59e918964455fdead682d79109371a (patch) | |
| tree | a22e88223f74e440eba499580e46533cf19d051d /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Merge tag 'trace-v4.17-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace (diff) | |
| download | linux-dev-1258fae73c59e918964455fdead682d79109371a.tar.xz linux-dev-1258fae73c59e918964455fdead682d79109371a.zip | |
workqueue: Replace pool->attach_mutex with global wq_pool_attach_mutex
To improve workqueue visibility, we want to be able to access
workqueue information from worker tasks. The per-pool attach mutex
makes that difficult because there's no way of stabilizing task ->
worker pool association without knowing the pool first.
Worker attach/detach is a slow path and there's no need for different
pools to be able to perform them concurrently. This patch replaces
the per-pool attach_mutex with global wq_pool_attach_mutex to prepare
for visibility improvement changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions