workqueue: implicit ordered attribute should be overridable

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5c0338c687 ("workqueue: restore WQ_UNBOUND/max_active==1 to be
ordered") automatically enabled ordered attribute for unbound
workqueues w/ max_active == 1.  Because ordered workqueues reject
max_active and some attribute changes, this implicit ordered mode
broke cases where the user creates an unbound workqueue w/ max_active
== 1 and later explicitly changes the related attributes.

This patch distinguishes explicit and implicit ordered setting and
overrides from attribute changes if implict.

Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: 5c0338c687 ("workqueue: restore WQ_UNBOUND/max_active==1 to be ordered")

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This commit is contained in:

Tejun Heo 2017-07-23 08:36:15 -04:00

parent 5c0338c687

commit 0a94efb5ac

2 changed files with 12 additions and 5 deletions

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4

include/linux/workqueue.h

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13

kernel/workqueue.c

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