* (no subject)
@ 2008-02-03 11:13 am kara
2008-02-03 18:23 ` Benny Halevy
0 siblings, 1 reply; 2+ messages in thread
From: am kara @ 2008-02-03 11:13 UTC (permalink / raw)
To: linux-kernel
hello,
If kernel does kmap_atomic(temporary kernel mapping)
on behalf of a process by a cpu, does the process will
continue to run and no other process can be scheduled
to switch it off?(till kunmap_atomic is done)
____________________________________________________________________________________
Looking for last minute shopping deals?
Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re:
2008-02-03 11:13 am kara
@ 2008-02-03 18:23 ` Benny Halevy
0 siblings, 0 replies; 2+ messages in thread
From: Benny Halevy @ 2008-02-03 18:23 UTC (permalink / raw)
To: am kara; +Cc: linux-kernel
am kara wrote:
> hello,
>
> If kernel does kmap_atomic(temporary kernel mapping)
> on behalf of a process by a cpu, does the process will
> continue to run and no other process can be scheduled
> to switch it off?(till kunmap_atomic is done)
Effectively, kmap_atomic implementations call pagefault_disable
and that in turn is equivalent to preempt_disable()
so the answer to your question seems to be "yes".
Benny
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2008-02-03 18:23 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-02-03 11:13 am kara
2008-02-03 18:23 ` Benny Halevy
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).