[Lustre-devel] [wc-discuss] Important changes to libcfs primitives usage.

John Hammond jhammond at tacc.utexas.edu
Mon Dec 17 09:09:40 PST 2012

On 12/05/2012 07:54 AM, Oleg Drokin wrote:
>     I just landed first patch of the series to reduce usage of our libcfs_ wrappers for kernel primitives like libcfs_spin_lock/unlock...
>     You can see actual change here: http://review.whamcloud.com/#change,2829
>     It's highly likely that plenty of patches will be affected. To make our job easier, there is a
>     build/libcfs_cleanup.sed script included, you can run it on all your .c and .h files to make necessary replacements:
>     sed -i -f build/libcfs_cleanup.sed3  `find . -name "*.h" -or -name "*.c"`
>     Please be also advised that there are more changes like this are coming (timeline is not very clear ATM, we might be able to wait with the rest until
>     after feature freeze) and the sed script will be updated accordingly.

I have been wondering about wrappers and typedefs not affected by this 
change, for example cfs_get_cpu(), cfs_atomic_read() and 
cfs_proc_dir_entry_t.  In new code and patches should we use the cfs 
names or their Linux equivalents, get_cpu(), atomic_read(), and struct 



John L. Hammond, Ph.D.
TACC, The University of Texas at Austin
jhammond at tacc.utexas.edu
(512) 471-9304

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