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authorDennis Zhou <dennisz@fb.com>2017-06-20 01:28:31 +0200
committerTejun Heo <tj@kernel.org>2017-06-20 21:31:38 +0200
commit30a5b5367ef9d5c9055414e12ec2f02d9de2e70f (patch)
tree900c04966e2adae51b7f833dbedcd8cbe0f828bb /mm/Makefile
parentpercpu: migrate percpu data structures to internal header (diff)
downloadlinux-30a5b5367ef9d5c9055414e12ec2f02d9de2e70f.tar.xz
linux-30a5b5367ef9d5c9055414e12ec2f02d9de2e70f.zip
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