On 7/6/07, Jesper Juhl <jesper.juhl@xxxxxxxxx> wrote:
On 06/07/07, Bhanu Kalyan Chetlapalli <chbhanukalyan@xxxxxxxxx> wrote: > On 7/6/07, hari krishna angadi <reachtohari@xxxxxxxxx> wrote: > > hi all, > > I am porting from 2.4 to 2.6, There is a problem, a user space > > code which should be pushed to kernel space(driver module). In the user > > program there is a nanosleep() function i need to know the respective > > kernel routine for nanosleep. > > kernel does not have something like sleep, it just schedules a new > process in that time. Not true, you have udelay(), ndelay(), mdelay(), msleep(), ssleep() and the *_interruptible() versions... So you do have functions to delay or sleep in the kernel.
My mistake, kinda missed out on these interfaces. I thought you had to do it on your own using timers etc, for which these functions provide a very clean and portable interface.
And if you don't want the kernel to preempt you you can disable preemption while doing your sleeping... not very well behaved kernel code, but you can do it... -- Jesper Juhl <jesper.juhl@xxxxxxxxx> Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html
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