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authorDennis Zhou <dennisz@fb.com>2017-06-19 19:28:31 -0400
committerTejun Heo <tj@kernel.org>2017-06-20 15:31:38 -0400
commit30a5b5367ef9d5c9055414e12ec2f02d9de2e70f (patch)
tree900c04966e2adae51b7f833dbedcd8cbe0f828bb /mm/Makefile
parent8fa3ed8014ac792a4c76d585b5c0f68bd202ff6b (diff)
downloadlinux-30a5b5367ef9d5c9055414e12ec2f02d9de2e70f.tar.gz
percpu: expose statistics about percpu memory via debugfs
There is limited visibility into the use of percpu memory leaving us
unable to reason about correctness of parameters and overall use of
percpu memory. These counters and statistics aim to help understand
basic statistics about percpu memory such as number of allocations over
the lifetime, allocation sizes, and fragmentation.

New Config: PERCPU_STATS

Signed-off-by: Dennis Zhou <dennisz@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'mm/Makefile')
-rw-r--r--mm/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/Makefile b/mm/Makefile
index 026f6a828a50..411bd24d4a7c 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -103,3 +103,4 @@ obj-$(CONFIG_IDLE_PAGE_TRACKING) += page_idle.o
 obj-$(CONFIG_FRAME_VECTOR) += frame_vector.o
 obj-$(CONFIG_DEBUG_PAGE_REF) += debug_page_ref.o
 obj-$(CONFIG_HARDENED_USERCOPY) += usercopy.o
+obj-$(CONFIG_PERCPU_STATS) += percpu-stats.o