Messages in this thread | | | Date | Sat, 16 Feb 2008 10:47:23 +0200 | From | Adrian Bunk <> | Subject | Re: [PATCH] Add list_for_each_rcu to features-removal list |
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On Mon, Jan 28, 2008 at 04:25:00AM -0800, Paul E. McKenney wrote: > Hello! > > The list_for_each_entry_rcu() primitive should be used instead of > list_for_each_rcu(), as the former is easier to use and provides > better type safety. This patch therefore adds list_for_each_rcu() > to the Documentation/feature-removal-schedule.txt file (for mid-2008) > and marks its comment header deprecated. > > Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> > --- > > Documentation/feature-removal-schedule.txt | 10 ++++++++++ > include/linux/list.h | 5 ++++- > 2 files changed, 14 insertions(+), 1 deletion(-) > > diff -urpNa -X dontdiff linux-2.6.24/Documentation/feature-removal-schedule.txt linux-2.6.24-dep-lfeRCU/Documentation/feature-removal-schedule.txt > --- linux-2.6.24/Documentation/feature-removal-schedule.txt 2008-01-24 14:58:37.000000000 -0800 > +++ linux-2.6.24-dep-lfeRCU/Documentation/feature-removal-schedule.txt 2008-01-28 04:00:49.000000000 -0800 > @@ -333,3 +333,13 @@ Why: This driver has been marked obsolet > Who: Stephen Hemminger <shemminger@linux-foundation.org> > > --------------------------- > + > +What: list_for_each_rcu() primitive > +When: July 2008 > +Files: include/linux/list.h > +Why: The list_for_each_entry_rcu() primitive should be used instead, > + as it is less error-prone and provides better type safety. > +Who: Paul E. McKenney <paulmck@linux.vnet.ibm.com> >...
Declaring something as deprecated doesn't automatically convert the in-kernel users.
And once there are no in-kernel users left you can kill it immediately.
The only working way for getting rid of list_for_each_rcu() is: - send patches for all in-kernel usages to the maintainers of the code in question now - once all of these patches have entered Linus' tree (which might not be before the 2.6.26 merge window) you can remove list_for_each_rcu()
cu Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed
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