• Tejun Heo's avatar
    workqueue: implicit ordered attribute should be overridable · 06114f07
    Tejun Heo authored
    commit 0a94efb5 upstream.
    
    5c0338c6 ("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: default avatarTejun Heo <tj@kernel.org>
    Fixes: 5c0338c6 ("workqueue: restore WQ_UNBOUND/max_active==1 to be ordered")
    Cc: Holger Hoffstätte <holger@applied-asynchrony.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    06114f07
workqueue.c 139 KB