Re: [PATCH 2.6.19-rc1-mm1] Export jiffies_to_timespec()

[Andrew Morton]

On Wed, 11 Oct 2006 17:16:28 +0100
Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote:

> On Tue, Oct 10, 2006 at 05:36:54PM -0700, Jeremy Fitzhardinge wrote:
> > Export jiffies_to_timespec; previously modules used the inlined header 
> > version.
> 
> NACK, drivers shouldn know about these timekeeping details and no
> in-tree driver uses it (fortunately)

Disagree.

a) `jiffies' and `timepsec' are hardly "details".  They are basic
   kernel-wide concepts.  timespecs are even known to userspace.  Exporting
   a helper function which converts from one to the other is perfectly
   reasonable.

b) jiffies_to_timespec() was previously available to modules.  We
   changed that without notice and we changed it *by accident*.  There was
   no intention to withdraw jiffies_to_timespec() from the
   available-to-modules API.


If we really wanted to withdraw jiffies_to_timespec() then we'd mark it
__deprecated_for_modules for a while, then withdraw it.  But there's no
earthly reason why we'd want to withdraw it: the export makes sense.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/