[lustre-devel] [PATCH 1/2] staging: lustre: lnet: convert selftest to use workqueues

Greg Kroah-Hartman gregkh at linuxfoundation.org
Mon Jan 15 06:48:19 PST 2018

On Thu, Jan 11, 2018 at 03:06:40PM +1100, NeilBrown wrote:
> Instead of the cfs workitem library, use workqueues.
> As lnet wants to provide a cpu mask of allowed cpus, it
> needs to be a WQ_UNBOUND work queue so that tasks can
> run on cpus other than where they were submitted.
> This patch also exported apply_workqueue_attrs() which is
> a documented part of the workqueue API, that isn't currently
> exported.  lustre needs it to allow workqueue thread to be limited
> to a subset of CPUs.
> Acked-by: Tejun Heo <tj at kernel.org> (for export of apply_workqueue_attrs)
> Signed-off-by: NeilBrown <neilb at suse.com>

I now see the following build warning with this patch applied:

drivers/staging/lustre/lnet/selftest/module.c: In function ‘lnet_selftest_init’:
drivers/staging/lustre/lnet/selftest/module.c:98:10: warning: ‘rc’ may be used uninitialized in this function [-Wmaybe-uninitialized]
   return rc;

Care to send a follow-on patch to fix it up?


greg k-h

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