diff options
Diffstat (limited to 'drivers/md/bcache/super.c')
| -rw-r--r-- | drivers/md/bcache/super.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 2f8e70aefc90..06f4b4833755 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1197,6 +1197,9 @@ static int cached_dev_init(struct cached_dev *dc, unsigned block_size) max(dc->disk.disk->queue->backing_dev_info->ra_pages, q->backing_dev_info->ra_pages); + atomic_set(&dc->io_errors, 0); + dc->io_disable = false; + dc->error_limit = DEFAULT_CACHED_DEV_ERROR_LIMIT; /* default to auto */ dc->stop_when_cache_set_failed = BCH_CACHED_DEV_STOP_AUTO; @@ -1351,6 +1354,24 @@ int bch_flash_dev_create(struct cache_set *c, uint64_t size) return flash_dev_run(c, u); } +bool bch_cached_dev_error(struct cached_dev *dc) +{ + char name[BDEVNAME_SIZE]; + + if (!dc || test_bit(BCACHE_DEV_CLOSING, &dc->disk.flags)) + return false; + + dc->io_disable = true; + /* make others know io_disable is true earlier */ + smp_mb(); + + pr_err("stop %s: too many IO errors on backing device %s\n", + dc->disk.disk->disk_name, bdevname(dc->bdev, name)); + + bcache_device_stop(&dc->disk); + return true; +} + /* Cache set */ __printf(2, 3) |