mm: oom analysis: add per-zone statistics to show_free_areas()
show_free_areas() displays only a limited amount of zone counters. This patch includes additional counters in the display to allow easier debugging. This may be especially useful if an OOM is due to running out of DMA memory. Signed-off-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: NChristoph Lameter <cl@linux-foundation.org> Acked-by: NWu Fengguang <fengguang.wu@intel.com> Reviewed-by: NMinchan Kim <minchan.kim@gmail.com> Reviewed-by: NRik van Riel <riel@redhat.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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