Currently if a user enqueue a work item using schedule_delayed_work() the used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to schedule_work() that is using system_wq and queue_work(), that makes use again of WORK_CPU_UNBOUND. This lack of consistentcy cannot be addressed without refactoring the API. system_unbound_wq should be the default workqueue so as not to enforce locality constraints for random work whenever it's not required. Adding system_dfl_wq to encourage its use when unbound work should be used. queue_work() / queue_delayed_work() / mod_delayed_work() will now use the new unbound wq: whether the user still use the old wq a warn will be printed along with a wq redirect to the new one. The old system_unbound_wq will be kept for a few release cycles. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari --- drivers/net/macvlan.c | 2 +- drivers/net/netdevsim/dev.c | 6 +++--- drivers/net/wireless/intel/iwlwifi/fw/dbg.c | 4 ++-- drivers/net/wireless/intel/iwlwifi/iwl-trans.h | 2 +- net/core/link_watch.c | 4 ++-- net/unix/garbage.c | 2 +- net/wireless/core.c | 4 ++-- net/wireless/sysfs.c | 2 +- 8 files changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index d0dfa6bca6cc..8572748b79f6 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -369,7 +369,7 @@ static void macvlan_broadcast_enqueue(struct macvlan_port *port, } spin_unlock(&port->bc_queue.lock); - queue_work(system_unbound_wq, &port->bc_work); + queue_work(system_dfl_wq, &port->bc_work); if (err) goto free_nskb; diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c index 3e0b61202f0c..0b7c945a0e96 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -836,7 +836,7 @@ static void nsim_dev_trap_report_work(struct work_struct *work) nsim_dev = nsim_trap_data->nsim_dev; if (!devl_trylock(priv_to_devlink(nsim_dev))) { - queue_delayed_work(system_unbound_wq, + queue_delayed_work(system_dfl_wq, &nsim_dev->trap_data->trap_report_dw, 1); return; } @@ -852,7 +852,7 @@ static void nsim_dev_trap_report_work(struct work_struct *work) cond_resched(); } devl_unlock(priv_to_devlink(nsim_dev)); - queue_delayed_work(system_unbound_wq, + queue_delayed_work(system_dfl_wq, &nsim_dev->trap_data->trap_report_dw, msecs_to_jiffies(NSIM_TRAP_REPORT_INTERVAL_MS)); } @@ -909,7 +909,7 @@ static int nsim_dev_traps_init(struct devlink *devlink) INIT_DELAYED_WORK(&nsim_dev->trap_data->trap_report_dw, nsim_dev_trap_report_work); - queue_delayed_work(system_unbound_wq, + queue_delayed_work(system_dfl_wq, &nsim_dev->trap_data->trap_report_dw, msecs_to_jiffies(NSIM_TRAP_REPORT_INTERVAL_MS)); diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c index 03f639fbf9b6..2467b5d56014 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c @@ -2950,7 +2950,7 @@ int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt, IWL_WARN(fwrt, "Collecting data: trigger %d fired.\n", le32_to_cpu(desc->trig_desc.type)); - queue_delayed_work(system_unbound_wq, &wk_data->wk, + queue_delayed_work(system_dfl_wq, &wk_data->wk, usecs_to_jiffies(delay)); return 0; @@ -3254,7 +3254,7 @@ int iwl_fw_dbg_ini_collect(struct iwl_fw_runtime *fwrt, if (sync) iwl_fw_dbg_collect_sync(fwrt, idx); else - queue_delayed_work(system_unbound_wq, + queue_delayed_work(system_dfl_wq, &fwrt->dump.wks[idx].wk, usecs_to_jiffies(delay)); diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h index 25fb4c50e38b..29ff021b5779 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h @@ -1163,7 +1163,7 @@ static inline void iwl_trans_schedule_reset(struct iwl_trans *trans, */ trans->restart.during_reset = test_bit(STATUS_IN_SW_RESET, &trans->status); - queue_work(system_unbound_wq, &trans->restart.wk); + queue_work(system_dfl_wq, &trans->restart.wk); } static inline void iwl_trans_fw_error(struct iwl_trans *trans, diff --git a/net/core/link_watch.c b/net/core/link_watch.c index cb04ef2b9807..7c17cba6437d 100644 --- a/net/core/link_watch.c +++ b/net/core/link_watch.c @@ -157,9 +157,9 @@ static void linkwatch_schedule_work(int urgent) * override the existing timer. */ if (test_bit(LW_URGENT, &linkwatch_flags)) - mod_delayed_work(system_unbound_wq, &linkwatch_work, 0); + mod_delayed_work(system_dfl_wq, &linkwatch_work, 0); else - queue_delayed_work(system_unbound_wq, &linkwatch_work, delay); + queue_delayed_work(system_dfl_wq, &linkwatch_work, delay); } diff --git a/net/unix/garbage.c b/net/unix/garbage.c index 01e2b9452c75..684ab03137b6 100644 --- a/net/unix/garbage.c +++ b/net/unix/garbage.c @@ -592,7 +592,7 @@ static DECLARE_WORK(unix_gc_work, __unix_gc); void unix_gc(void) { WRITE_ONCE(gc_in_progress, true); - queue_work(system_unbound_wq, &unix_gc_work); + queue_work(system_dfl_wq, &unix_gc_work); } #define UNIX_INFLIGHT_TRIGGER_GC 16000 diff --git a/net/wireless/core.c b/net/wireless/core.c index dcce326fdb8c..ffe0f439fda8 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -428,7 +428,7 @@ static void cfg80211_wiphy_work(struct work_struct *work) if (wk) { list_del_init(&wk->entry); if (!list_empty(&rdev->wiphy_work_list)) - queue_work(system_unbound_wq, work); + queue_work(system_dfl_wq, work); spin_unlock_irq(&rdev->wiphy_work_lock); trace_wiphy_work_run(&rdev->wiphy, wk); @@ -1670,7 +1670,7 @@ void wiphy_work_queue(struct wiphy *wiphy, struct wiphy_work *work) list_add_tail(&work->entry, &rdev->wiphy_work_list); spin_unlock_irqrestore(&rdev->wiphy_work_lock, flags); - queue_work(system_unbound_wq, &rdev->wiphy_work); + queue_work(system_dfl_wq, &rdev->wiphy_work); } EXPORT_SYMBOL_GPL(wiphy_work_queue); diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c index 62f26618f674..8d142856e385 100644 --- a/net/wireless/sysfs.c +++ b/net/wireless/sysfs.c @@ -137,7 +137,7 @@ static int wiphy_resume(struct device *dev) if (rdev->wiphy.registered && rdev->ops->resume) ret = rdev_resume(rdev); rdev->suspended = false; - queue_work(system_unbound_wq, &rdev->wiphy_work); + queue_work(system_dfl_wq, &rdev->wiphy_work); wiphy_unlock(&rdev->wiphy); if (ret) -- 2.51.0