Zeng Heng dd2922dcfa fs/resctrl: Restore the rdt_last_cmd_clear() calls after acquiring rdtgroup_mutex ... A lockdep fix removed two rdt_last_cmd_clear() calls that were used to clear the last_cmd_status buffer but called without holding the required rdtgroup_mutex. The impacted resctrl commands are writing to the cpus or cpus_list files and creating a new monitor or control group. With stale data in the last_cmd_status buffer the impacted resctrl commands report the stale error on success, or append its own failure message to the stale error on failure. Consequently, restore the rdt_last_cmd_clear() calls after acquiring rdtgroup_mutex. Fixes: c8eafe1495 ("x86/resctrl: Fix potential lockdep warning") Signed-off-by: Zeng Heng <zengheng4@huawei.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Link: https://lore.kernel.org/all/20250603125828.1590067-1-zengheng4@huawei.com		2025-06-04 20:32:55 +02:00
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ctrlmondata.c
internal.h
Kconfig
Makefile
monitor_trace.h
monitor.c
pseudo_lock.c
rdtgroup.c	fs/resctrl: Restore the rdt_last_cmd_clear() calls after acquiring rdtgroup_mutex	2025-06-04 20:32:55 +02:00