Can a Bottom half be scheduled from a kernel thread

[Mandeep Sandhu]

> For example, if there is some work which is prepared ready by a kernel
> thread (but thread dont want to process it immediately, rather want to
> deffer it for sometime) and the intention is to process this "prapared work"
> at some later time. In the situation like this, can we use the tasklet to do
> this?

Isn't the purpose of the (kernel) thread itself is to DO deferred
work? Tasklets, if I remember, are run only once at *some* later stage
of processing an interrupt.

Why can't use another kernel thread itself (or maybe even a timer) to
schedule your work?

See this link which explains the difference between the 2 succinctly:

http://www.makelinux.net/ldd3/chp-7-sect-6

HTH,
-mandeep


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> On Tue, May 13, 2014 at 6:28 AM, Pranay Srivastava <pranjas at gmail.com>
> wrote:
>>
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>> On May 13, 2014 2:36 AM, "Vishwas Srivastava" <vishu.kernel at gmail.com>
>> wrote:
>> >
>> > Hi All,
>> >             This may sound a dumb question. I just want to know if a
>> > tasklet can be scheduled from a kernel thread.
>>
>> You can do tasklet_schedule in case I am getting your question.
>>
>> > what are the pros and crons of doing so?
>>
>> Don't sleep or schedule the tasklet code. It needs to be atomic since it
>> runs via TASKLET_SOFTIRQ.
>>
>> > thanks,
>> > Vishwas S
>> >
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