On Fri, Jul 09, 2021 at 10:15:54AM -0700, Suren Baghdasaryan wrote:

Inline mem_cgroup_{charge/uncharge} and mem_cgroup_uncharge_list functions
functions to perform mem_cgroup_disabled static key check inline before
calling the main body of the function. This minimizes the memcg overhead
in the pagefault and exit_mmap paths when memcgs are disabled using
cgroup_disable=memory command-line option.
This change results in ~0.4% overhead reduction when running PFT test
comparing {CONFIG_MEMCG=n} against {CONFIG_MEMCG=y, cgroup_disable=memory}
configurationon on an 8-core ARM64 Android device.

Signed-off-by: Suren Baghdasaryan <redacted>

Acked-by: Johannes Weiner <redacted>

Thanks!