On Mon, Jul 24, 2017 at 07:02:08PM -0400, Dennis Zhou wrote: > From: "Dennis Zhou (Facebook)" <[email protected]> > > pcpu_nr_empty_pop_pages is used to ensure there are a handful of free > pages around to serve atomic allocations. A new field, nr_empty_pop_pages, > is added to the pcpu_chunk struct to keep track of the number of empty > pages. This field is needed as the number of empty populated pages is > globally tracked and deltas are used to update in the bitmap allocator. > Pages that contain a hidden area are not considered to be empty. This > new field is exposed in percpu_stats. > > Signed-off-by: Dennis Zhou <[email protected]>
Reviewed-by: Josef Bacik <[email protected]> Thanks, Josef
