powerpc/eeh: Allow disabling recovery (6b493f60) · Commits · 戴 / test

arch/powerpc/include/asm/eeh.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -220,6 +220,7 @@ struct eeh_ops {

		extern int eeh_subsystem_flags;
		extern u32 eeh_max_freezes;
		extern bool eeh_debugfs_no_recover;
		extern struct eeh_ops *eeh_ops;
		extern raw_spinlock_t confirm_error_lock;

+10 −0

Original line number	Diff line number	Diff line
		@@ -111,6 +111,13 @@ EXPORT_SYMBOL(eeh_subsystem_flags);
		*/
		u32 eeh_max_freezes = 5;

		/*
		* Controls whether a recovery event should be scheduled when an
		* isolated device is discovered. This is only really useful for
		* debugging problems with the EEH core.
		*/
		bool eeh_debugfs_no_recover;

		/* Platform dependent EEH operations */
		struct eeh_ops *eeh_ops = NULL;

		@@ -1843,6 +1850,9 @@ static int __init eeh_init_proc(void)
		&eeh_enable_dbgfs_ops);
		debugfs_create_u32("eeh_max_freezes", 0600,
		powerpc_debugfs_root, &eeh_max_freezes);
		debugfs_create_bool("eeh_disable_recovery", 0600,
		powerpc_debugfs_root,
		&eeh_debugfs_no_recover);
		eeh_cache_debugfs_init();
		#endif
		}

+9 −0

Original line number	Diff line number	Diff line
		@@ -126,6 +126,15 @@ int eeh_send_failure_event(struct eeh_pe *pe)
		unsigned long flags;
		struct eeh_event *event;

		/*
		* If we've manually supressed recovery events via debugfs
		* then just drop it on the floor.
		*/
		if (eeh_debugfs_no_recover) {
		pr_err("EEH: Event dropped due to no_recover setting\n");
		return 0;
		}

		event = kzalloc(sizeof(*event), GFP_ATOMIC);
		if (!event) {
		pr_err("EEH: out of memory, event not handled\n");