diff options
Diffstat (limited to 'drivers/ras/cec.c')
| -rw-r--r-- | drivers/ras/cec.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c index f5795adc5a6e..73a975c26f9f 100644 --- a/drivers/ras/cec.c +++ b/drivers/ras/cec.c @@ -294,6 +294,7 @@ int cec_add_elem(u64 pfn) ca->ces_entered++; + /* Array full, free the LRU slot. */ if (ca->n == MAX_ELEMS) WARN_ON(!del_lru_elem_unlocked(ca)); @@ -306,24 +307,17 @@ int cec_add_elem(u64 pfn) (void *)&ca->array[to], (ca->n - to) * sizeof(u64)); - ca->array[to] = (pfn << PAGE_SHIFT) | - (DECAY_MASK << COUNT_BITS) | 1; - + ca->array[to] = pfn << PAGE_SHIFT; ca->n++; - - ret = 0; - - goto decay; } - count = COUNT(ca->array[to]); - - if (count < count_threshold) { - ca->array[to] |= (DECAY_MASK << COUNT_BITS); - ca->array[to]++; + /* Add/refresh element generation and increment count */ + ca->array[to] |= DECAY_MASK << COUNT_BITS; + ca->array[to]++; - ret = 0; - } else { + /* Check action threshold and soft-offline, if reached. */ + count = COUNT(ca->array[to]); + if (count >= count_threshold) { u64 pfn = ca->array[to] >> PAGE_SHIFT; if (!pfn_valid(pfn)) { @@ -338,15 +332,14 @@ int cec_add_elem(u64 pfn) del_elem(ca, to); /* - * Return a >0 value to denote that we've reached the offlining - * threshold. + * Return a >0 value to callers, to denote that we've reached + * the offlining threshold. */ ret = 1; goto unlock; } -decay: ca->decay_count++; if (ca->decay_count >= CLEAN_ELEMS) |