Re: Wait for two clock ticks

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Mar 6, 2009 at 1:34 PM, Raz <raziebe@xxxxxxxxx> wrote:
> On Fri, Mar 6, 2009 at 8:17 PM, Asim <linkasim@xxxxxxxxx> wrote:
>> I need it for a device. The device performs some operation in a loop
>> but I cannot wait in that loop forever, so I need to wait for the
>> maximum time I can (2 clock ticks) before giving up on the device.
>> Interrupts may be disabled so I cannot use jiffies. Any simple
>> solution would be appreciated.
> so why not use getnstimeofday ?
>

Or better yet, why not use some kind of lock to protect your shared
resource but allow the cpu do other work.  Disabling interrupts for 2
ticks is just not desired.  If you did that you could easily look at
jiffies.

Greg
-- 
Greg Freemyer
Litigation Triage Solutions Specialist
http://www.linkedin.com/in/gregfreemyer
First 99 Days Litigation White Paper -
http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf

The Norcross Group
The Intersection of Evidence & Technology
http://www.norcrossgroup.com

--
To unsubscribe from this list: send an email with
"unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx
Please read the FAQ at http://kernelnewbies.org/FAQ


[Index of Archives]     [Newbies FAQ]     [Linux Kernel Mentors]     [Linux Kernel Development]     [IETF Annouce]     [Git]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux SCSI]     [Linux ACPI]
  Powered by Linux