On 05/30/13 01:01, Andrew Morton wrote:
On Tue, 21 May 2013 20:43:50 +0200 Bart Van Assche <bart.vanass...@gmail.com>
wrote:
Make sure that the round_jiffies*() functions return a time that is
in the future when the jiffies counter is about to wrap.
Actually "when the jiffies counter has recently wrapped".
I assume this was found by inspection?
Hello Andrew,
You are correct, this was found via source code inspection. I started
reviewing the round_jiffies*() implementation because I was chasing a
bug in a kernel driver using one of these functions.
- return original;
- return j;
+ return time_is_after_jiffies(j) ? j : original;
}
Your email client mangles patches, btw.
Sorry. Will take more care in the future.
Bart.
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