LinuxQuestions.org
Support LQ: Use code LQ3 and save $3 on Domain Registration
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software > Linux - Kernel
User Name
Password
Linux - Kernel This forum is for all discussion relating to the Linux kernel.

Notices

Reply
 
Search this Thread
Old 02-25-2011, 01:38 PM   #1
hitechvie
LQ Newbie
 
Registered: Feb 2011
Posts: 1

Rep: Reputation: 0
softirq


Can I use softirq type call from the User Space to unblock a Kernel Thread or a Tasklet Schedule type process. Such a process has been placed in Linux via a Loadable Module.

As I understand ioctl system achieves similar thing (i.e from User Space run something in Kernel Space).
 
Old 02-25-2011, 02:40 PM   #2
corp769
Guru
 
Registered: Apr 2005
Posts: 5,807

Rep: Reputation: 995Reputation: 995Reputation: 995Reputation: 995Reputation: 995Reputation: 995Reputation: 995Reputation: 995
Only a thread can interrupt an interrupt; Therefore, to my knowledge, no. A softirq can only get the CPU time after an interrupt. Can someone else confirm this? It's been a while since I messed with anything hardcore like this.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Very High SoftIRQ in top output nima0102 Linux - Server 1 12-30-2010 04:41 AM
top says SoftIRQ is taking 100% of one CPU RichDygert Linux - Newbie 0 10-09-2006 12:47 PM
distribution of softirq in SMP tomtomtom Linux - Software 0 09-22-2006 09:37 AM
"bottom half" vs "softirq" kpachopoulos Programming 1 10-28-2005 07:00 AM
FC2+ltmodem+softIRQ problem dickmobbis Fedora 0 07-12-2004 09:08 AM


All times are GMT -5. The time now is 03:29 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration