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Shawn Wang dceb668daa x86/resctrl: Only show tasks' pid in current pid namespace

[ Upstream commit 2997d94b5d ]

When writing a task id to the "tasks" file in an rdtgroup,
rdtgroup_tasks_write() treats the pid as a number in the current pid
namespace. But when reading the "tasks" file, rdtgroup_tasks_show() shows
the list of global pids from the init namespace, which is confusing and
incorrect.

To be more robust, let the "tasks" file only show pids in the current pid
namespace.

Fixes: e02737d5b8 ("x86/intel_rdt: Add tasks files")
Signed-off-by: Shawn Wang <shawnwang@linux.alibaba.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Tested-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/all/20230116071246.97717-1-shawnwang@linux.alibaba.com/
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-07-11 19:39:21 +02:00

core.c

x86/resctrl: Add __init attribute to rdt_get_mon_l3_config()

2023-01-23 17:40:11 +01:00

ctrlmondata.c

x86/resctrl: Clear staged_config[] before and after it is used

2023-03-15 15:19:43 -07:00

internal.h

x86/resctrl: Clear staged_config[] before and after it is used

2023-03-15 15:19:43 -07:00

Makefile

x86/resctrl: Avoid confusion over the new X86_RESCTRL config