From 01e14d6db9654be005a0a5384090aea2cde39976 Mon Sep 17 00:00:00 2001 From: David Fries Date: Wed, 15 Oct 2008 22:04:40 -0700 Subject: W1: don't delay search start Move the creation of the w1_process thread to after the device has been initialized. This way w1_process doesn't have to check to see if it has been initialized and the bus search can proceed without sleeping. That also eliminates two checks in the w1_process loop. The sleep now happens at the end of the loop not the beginning. Also added a comment for why the atomic_set was 2. Signed-off-by: David Fries Signed-off-by: Evgeniy Polyakov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/w1/w1.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) (limited to 'drivers/w1/w1.c') diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index aac03f151fe..730faa49d8d 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -813,21 +813,14 @@ int w1_process(void *data) struct w1_master *dev = (struct w1_master *) data; while (!kthread_should_stop() && !test_bit(W1_MASTER_NEED_EXIT, &dev->flags)) { + if (dev->search_count) { + mutex_lock(&dev->mutex); + w1_search_process(dev, W1_SEARCH); + mutex_unlock(&dev->mutex); + } + try_to_freeze(); msleep_interruptible(w1_timeout * 1000); - - if (kthread_should_stop() || test_bit(W1_MASTER_NEED_EXIT, &dev->flags)) - break; - - if (!dev->initialized) - continue; - - if (dev->search_count == 0) - continue; - - mutex_lock(&dev->mutex); - w1_search_process(dev, W1_SEARCH); - mutex_unlock(&dev->mutex); } atomic_dec(&dev->refcnt); -- cgit v1.2.3