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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-02 19:53:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-02 19:53:30 -0700 |
| commit | f317ff9eed763e99bd226a447f93d42509434f43 (patch) | |
| tree | d77edfcdb1e7c32c30327f50dce04bcff8ec1531 /drivers/net/phy | |
| parent | 13cc56013842a847a0f6ff805d9ed9181e753ef8 (diff) | |
| parent | a85f1a41f020bc2c97611060bcfae6f48a1db28d (diff) | |
| download | linux-f317ff9eed763e99bd226a447f93d42509434f43.tar.bz2 | |
Merge branch 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue changes from Tejun Heo:
"Surprisingly, Lai and I didn't break too many things implementing
custom pools and stuff last time around and there aren't any follow-up
changes necessary at this point.
The only change in this pull request is Viresh's patches to make some
per-cpu workqueues to behave as unbound workqueues dependent on a boot
param whose default can be configured via a config option. This leads
to higher processing overhead / lower bandwidth as more work items are
bounced across CPUs; however, it can lead to noticeable powersave in
certain configurations - ~10% w/ idlish constant workload on a
big.LITTLE configuration according to Viresh.
This is because per-cpu workqueues interfere with how the scheduler
perceives whether or not each CPU is idle by forcing pinned tasks on
them, which makes the scheduler's power-aware scheduling decisions
less effective.
Its effectiveness is likely less pronounced on homogenous
configurations and this type of optimization can probably be made
automatic; however, the changes are pretty minimal and the affected
workqueues are clearly marked, so it's an easy gain for some
configurations for the time being with pretty unintrusive changes."
* 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
fbcon: queue work on power efficient wq
block: queue work on power efficient wq
PHYLIB: queue work on system_power_efficient_wq
workqueue: Add system wide power_efficient workqueues
workqueues: Introduce new flag WQ_POWER_EFFICIENT for power oriented workqueues
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/phy.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 38f0b312ff85..663d2d0448b7 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -439,7 +439,7 @@ void phy_start_machine(struct phy_device *phydev, { phydev->adjust_state = handler; - schedule_delayed_work(&phydev->state_queue, HZ); + queue_delayed_work(system_power_efficient_wq, &phydev->state_queue, HZ); } /** @@ -500,7 +500,7 @@ static irqreturn_t phy_interrupt(int irq, void *phy_dat) disable_irq_nosync(irq); atomic_inc(&phydev->irq_disable); - schedule_work(&phydev->phy_queue); + queue_work(system_power_efficient_wq, &phydev->phy_queue); return IRQ_HANDLED; } @@ -655,7 +655,7 @@ static void phy_change(struct work_struct *work) /* reschedule state queue work to run as soon as possible */ cancel_delayed_work_sync(&phydev->state_queue); - schedule_delayed_work(&phydev->state_queue, 0); + queue_delayed_work(system_power_efficient_wq, &phydev->state_queue, 0); return; @@ -918,7 +918,8 @@ void phy_state_machine(struct work_struct *work) if (err < 0) phy_error(phydev); - schedule_delayed_work(&phydev->state_queue, PHY_STATE_TIME * HZ); + queue_delayed_work(system_power_efficient_wq, &phydev->state_queue, + PHY_STATE_TIME * HZ); } static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad, |