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docs: cgroup-v2: mark memory.pressure and io.pressure as read-write

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The cgroup-v2 documentation describes memory.pressure and io.pressure as
"read-only nested-keyed file", but both files accept trigger writes
(cgroup_memory_pressure_write / cgroup_io_pressure_write) and are therefore
read-write. cpu.pressure and irq.pressure are already documented as
read-write, so this also resolves an internal inconsistency.

Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tao Cui 2026-07-24 10:05:08 +08:00 committed by Tejun Heo
parent d56281fefb
commit 3864c95587
1 changed files with 2 additions and 2 deletions
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Documentation/admin-guide/cgroup-v2.rst
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@ -1930,7 +1930,7 @@ The following nested keys are defined.
is allowed unless memory.swap.max is set to 0.
memory.pressure
A read-only nested-keyed file.
A read-write nested-keyed file.
Shows pressure stall information for memory. See
:ref:`Documentation/accounting/psi.rst <psi>` for details.
@ -2190,7 +2190,7 @@ IO Interface Files
8:16 rbps=2097152 wbps=max riops=max wiops=max
io.pressure
A read-only nested-keyed file.
A read-write nested-keyed file.
Shows pressure stall information for IO. See
:ref:`Documentation/accounting/psi.rst <psi>` for details.