(cc'ing Rusty, hi!)

Hello, Li.

On Wed, Dec 26, 2012 at 06:20:11PM +0800, Li Zefan wrote:

On 2012/11/29 5:34, Tejun Heo wrote:

quoted

cpuset_can_attach() prepare global variables cpus_attach and
cpuset_attach_nodemask_{to|from} which are used by cpuset_attach().
There is no reason to prepare in cpuset_can_attach().  The same
information can be accessed from cpuset_attach().

Move the prepartion logic from cpuset_can_attach() to cpuset_attach()
and make the global variables static ones inside cpuset_attach().

While at it, convert cpus_attach to cpumask_t from cpumask_var_t.
There's no reason to mess with dynamic allocation on a static buffer.

But Rusty had been deprecating the use of cpumask_t. I don't know why
the final deprecation hasn't been completed yet.

Hmmm?  cpumask_t can't be used for stack but other than that I don't
see how it would be deprecated completely.  Rusty, can you please
chime in?

Thanks.

-- 
tejun

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