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docs: psi: use correct config name

Commit 2ce7135adc9a ("psi: cgroup support") adds documentation which refers
to CONFIG_CGROUP, but the correct name is CONFIG_CGROUPS.

Correct the reference to CONFIG_CGROUPS.

Co-developed-by: Sabina Trendota <sabinatrendota@gmail.com>
Signed-off-by: Sabina Trendota <sabinatrendota@gmail.com>
Signed-off-by: Ramazan Safiullin <ram.safiullin2001@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230728115600.231068-1-ram.safiullin2001@gmail.com

authored by

Ramazan Safiullin and committed by
Jonathan Corbet 25bf1bac 383f3088

+1 -1
+1 -1
Documentation/accounting/psi.rst
··· 178 178 Cgroup2 interface 179 179 ================= 180 180 181 - In a system with a CONFIG_CGROUP=y kernel and the cgroup2 filesystem 181 + In a system with a CONFIG_CGROUPS=y kernel and the cgroup2 filesystem 182 182 mounted, pressure stall information is also tracked for tasks grouped 183 183 into cgroups. Each subdirectory in the cgroupfs mountpoint contains 184 184 cpu.pressure, memory.pressure, and io.pressure files; the format is