[PATCH] docs: cgroup-v2: mark memory.pressure and io.pressure as read-write
Tao Cui <[email protected]> Fri, 24 Jul 2026 10:05:08 +0800
| Newsgroups | org.kernel.vger.cgroups,org.kernel.vger.linux-doc,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
From: Tao Cui <[email protected]> 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 <[email protected]> --- Documentation/admin-guide/cgroup-v2.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst index f3a3e26854c2..c08ae18afea8 100644 --- a/Documentation/admin-guide/cgroup-v2.rst +++ b/Documentation/admin-guide/cgroup-v2.rst @@ -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. -- 2.43.0