Valentin Schneider 9554af9801 x86/resctrl: Apply READ_ONCE/WRITE_ONCE to task_struct.{rmid,closid} ... commit 6d3b47ddffed70006cf4ba360eef61e9ce097d8f upstream. A CPU's current task can have its {closid, rmid} fields read locally while they are being concurrently written to from another CPU. This can happen anytime __resctrl_sched_in() races with either __rdtgroup_move_task() or rdt_move_group_tasks(). Prevent load / store tearing for those accesses by giving them the READ_ONCE() / WRITE_ONCE() treatment. Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/9921fda88ad81afb9885b517fbe864a2bc7c35a9.1608243147.git.reinette.chatre@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-03-11 16:40:19 +01:00
..
asm	x86/resctrl: Apply READ_ONCE/WRITE_ONCE to task_struct.{rmid,closid}	2023-03-11 16:40:19 +01:00
uapi/asm	x86/elf: Use _BITUL() macro in UAPI headers	2021-07-14 16:56:04 +02:00