Re: [PATCH] dma: ioat: use tasklet_kill in device remove/release process

2012-10-31 Thread Xiaotian Feng
On Wed, Oct 31, 2012 at 6:41 PM, Xiaotian Feng wrote: > Some driver uses tasklet_disable in device remove/release process, > tasklet_disable will inc tasklet->count and return. If the tasklet > is not handled yet under some softirq pressure, the tasklet will be > placed on the tasklet_vec, never h

[PATCH] dma: ioat: use tasklet_kill in device remove/release process

2012-10-31 Thread Xiaotian Feng
Some driver uses tasklet_disable in device remove/release process, tasklet_disable will inc tasklet->count and return. If the tasklet is not handled yet under some softirq pressure, the tasklet will be placed on the tasklet_vec, never have a chance to be excuted. This might lead to a heavy loaded k