From 493a1724fef9a3e931d9199f1a19e358e526a6e7 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 12 Mar 2013 11:29:59 -0700 Subject: [PATCH] workqueue: add wokrqueue_struct->maydays list to replace mayday cpu iterators Similar to how pool_workqueue iteration used to be, raising and servicing mayday requests is based on CPU numbers. It's hairy because cpumask_t may not be able to handle WORK_CPU_UNBOUND and cpumasks are assumed to be always set on UP. This is ugly and can't handle multiple unbound pools to be added for unbound workqueues w/ custom attributes. Add workqueue_struct->maydays. When a pool_workqueue needs rescuing, it gets chained on the list through pool_workqueue->mayday_node and rescuer_thread() consumes the list until it's empty. This patch doesn't introduce any visible behavior changes. Signed-off-by: Tejun Heo Reviewed-by: Lai Jiangshan --- Reading git-format-patch failed