diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/bcache/sysfs.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index 557a8a3270a1..b9166ee027fa 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -67,6 +67,7 @@ read_attribute(written); read_attribute(btree_written); read_attribute(metadata_written); read_attribute(active_journal_entries); +read_attribute(backing_dev_name); sysfs_time_stats_attribute(btree_gc, sec, ms); sysfs_time_stats_attribute(btree_split, sec, us); @@ -243,6 +244,12 @@ SHOW(__bch_cached_dev) return strlen(buf); } + if (attr == &sysfs_backing_dev_name) { + snprintf(buf, BDEVNAME_SIZE + 1, "%s", dc->backing_dev_name); + strcat(buf, "\n"); + return strlen(buf); + } + #undef var return 0; } @@ -452,6 +459,7 @@ static struct attribute *bch_cached_dev_files[] = { &sysfs_verify, &sysfs_bypass_torture_test, #endif + &sysfs_backing_dev_name, NULL }; KTYPE(bch_cached_dev); |