diff options
Diffstat (limited to 'drivers/ras/cec.c')
| -rw-r--r-- | drivers/ras/cec.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c index c09cf55e2d20..6b42040bf956 100644 --- a/drivers/ras/cec.c +++ b/drivers/ras/cec.c @@ -309,7 +309,7 @@ static bool sanity_check(struct ce_array *ca) return ret; } -int cec_add_elem(u64 pfn) +static int cec_add_elem(u64 pfn) { struct ce_array *ca = &ce_arr; unsigned int to = 0; @@ -527,7 +527,30 @@ err: return 1; } -void __init cec_init(void) +static int cec_notifier(struct notifier_block *nb, unsigned long val, + void *data) +{ + struct mce *m = (struct mce *)data; + + if (!m) + return NOTIFY_DONE; + + /* We eat only correctable DRAM errors with usable addresses. */ + if (mce_is_memory_error(m) && + mce_is_correctable(m) && + mce_usable_address(m)) + if (!cec_add_elem(m->addr >> PAGE_SHIFT)) + return NOTIFY_STOP; + + return NOTIFY_DONE; +} + +static struct notifier_block cec_nb = { + .notifier_call = cec_notifier, + .priority = MCE_PRIO_CEC, +}; + +static void __init cec_init(void) { if (ce_arr.disabled) return; @@ -546,8 +569,11 @@ void __init cec_init(void) INIT_DELAYED_WORK(&cec_work, cec_work_fn); schedule_delayed_work(&cec_work, CEC_DECAY_DEFAULT_INTERVAL); + mce_register_decode_chain(&cec_nb); + pr_info("Correctable Errors collector initialized.\n"); } +late_initcall(cec_init); int __init parse_cec_param(char *str) { |