diff options
Diffstat (limited to 'drivers/md/bcache/sysfs.c')
| -rw-r--r-- | drivers/md/bcache/sysfs.c | 55 |
1 files changed, 52 insertions, 3 deletions
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index 78cd7bd50fdd..dfeef583ee50 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -78,6 +78,7 @@ rw_attribute(congested_write_threshold_us); rw_attribute(sequential_cutoff); rw_attribute(data_csum); rw_attribute(cache_mode); +rw_attribute(stop_when_cache_set_failed); rw_attribute(writeback_metadata); rw_attribute(writeback_running); rw_attribute(writeback_percent); @@ -95,6 +96,7 @@ read_attribute(partial_stripes_expensive); rw_attribute(synchronous); rw_attribute(journal_delay_ms); +rw_attribute(io_disable); rw_attribute(discard); rw_attribute(running); rw_attribute(label); @@ -125,6 +127,12 @@ SHOW(__bch_cached_dev) bch_cache_modes + 1, BDEV_CACHE_MODE(&dc->sb)); + if (attr == &sysfs_stop_when_cache_set_failed) + return bch_snprint_string_list(buf, PAGE_SIZE, + bch_stop_on_failure_modes + 1, + dc->stop_when_cache_set_failed); + + sysfs_printf(data_csum, "%i", dc->disk.data_csum); var_printf(verify, "%i"); var_printf(bypass_torture_test, "%i"); @@ -133,7 +141,9 @@ SHOW(__bch_cached_dev) var_print(writeback_delay); var_print(writeback_percent); sysfs_hprint(writeback_rate, dc->writeback_rate.rate << 9); - + sysfs_hprint(io_errors, atomic_read(&dc->io_errors)); + sysfs_printf(io_error_limit, "%i", dc->error_limit); + sysfs_printf(io_disable, "%i", dc->io_disable); var_print(writeback_rate_update_seconds); var_print(writeback_rate_i_term_inverse); var_print(writeback_rate_p_term_inverse); @@ -173,7 +183,7 @@ SHOW(__bch_cached_dev) sysfs_hprint(dirty_data, bcache_dev_sectors_dirty(&dc->disk) << 9); - sysfs_hprint(stripe_size, dc->disk.stripe_size << 9); + sysfs_hprint(stripe_size, ((uint64_t)dc->disk.stripe_size) << 9); var_printf(partial_stripes_expensive, "%u"); var_hprint(sequential_cutoff); @@ -224,6 +234,14 @@ STORE(__cached_dev) d_strtoul(writeback_rate_i_term_inverse); d_strtoul_nonzero(writeback_rate_p_term_inverse); + sysfs_strtoul_clamp(io_error_limit, dc->error_limit, 0, INT_MAX); + + if (attr == &sysfs_io_disable) { + int v = strtoul_or_return(buf); + + dc->io_disable = v ? 1 : 0; + } + d_strtoi_h(sequential_cutoff); d_strtoi_h(readahead); @@ -246,6 +264,15 @@ STORE(__cached_dev) } } + if (attr == &sysfs_stop_when_cache_set_failed) { + v = bch_read_string_list(buf, bch_stop_on_failure_modes + 1); + + if (v < 0) + return v; + + dc->stop_when_cache_set_failed = v; + } + if (attr == &sysfs_label) { if (size > SB_LABEL_SIZE) return -EINVAL; @@ -309,7 +336,8 @@ STORE(bch_cached_dev) bch_writeback_queue(dc); if (attr == &sysfs_writeback_percent) - schedule_delayed_work(&dc->writeback_rate_update, + if (!test_and_set_bit(BCACHE_DEV_WB_RUNNING, &dc->disk.flags)) + schedule_delayed_work(&dc->writeback_rate_update, dc->writeback_rate_update_seconds * HZ); mutex_unlock(&bch_register_lock); @@ -324,6 +352,7 @@ static struct attribute *bch_cached_dev_files[] = { &sysfs_data_csum, #endif &sysfs_cache_mode, + &sysfs_stop_when_cache_set_failed, &sysfs_writeback_metadata, &sysfs_writeback_running, &sysfs_writeback_delay, @@ -333,6 +362,9 @@ static struct attribute *bch_cached_dev_files[] = { &sysfs_writeback_rate_i_term_inverse, &sysfs_writeback_rate_p_term_inverse, &sysfs_writeback_rate_debug, + &sysfs_errors, + &sysfs_io_error_limit, + &sysfs_io_disable, &sysfs_dirty_data, &sysfs_stripe_size, &sysfs_partial_stripes_expensive, @@ -590,6 +622,8 @@ SHOW(__bch_cache_set) sysfs_printf(gc_always_rewrite, "%i", c->gc_always_rewrite); sysfs_printf(btree_shrinker_disabled, "%i", c->shrinker_disabled); sysfs_printf(copy_gc_enabled, "%i", c->copy_gc_enabled); + sysfs_printf(io_disable, "%i", + test_bit(CACHE_SET_IO_DISABLE, &c->flags)); if (attr == &sysfs_bset_tree_stats) return bch_bset_print_stats(c, buf); @@ -679,6 +713,20 @@ STORE(__bch_cache_set) if (attr == &sysfs_io_error_halflife) c->error_decay = strtoul_or_return(buf) / 88; + if (attr == &sysfs_io_disable) { + int v = strtoul_or_return(buf); + + if (v) { + if (test_and_set_bit(CACHE_SET_IO_DISABLE, + &c->flags)) + pr_warn("CACHE_SET_IO_DISABLE already set"); + } else { + if (!test_and_clear_bit(CACHE_SET_IO_DISABLE, + &c->flags)) + pr_warn("CACHE_SET_IO_DISABLE already cleared"); + } + } + sysfs_strtoul(journal_delay_ms, c->journal_delay_ms); sysfs_strtoul(verify, c->verify); sysfs_strtoul(key_merging_disabled, c->key_merging_disabled); @@ -764,6 +812,7 @@ static struct attribute *bch_cache_set_internal_files[] = { &sysfs_gc_always_rewrite, &sysfs_btree_shrinker_disabled, &sysfs_copy_gc_enabled, + &sysfs_io_disable, NULL }; KTYPE(bch_cache_set_internal); |