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| author | Coly Li <colyli@suse.de> | 2019-06-28 13:59:37 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-06-28 15:39:15 +0200 |
| commit | 4b6efb4bdbce25097f1a6329e18c2b77c4f27722 (patch) | |
| tree | 048a928e30df944dc7767d57b630730ef2c8ee83 /drivers | |
| parent | bcache: check CACHE_SET_IO_DISABLE bit in bch_journal() (diff) | |
| download | linux-4b6efb4bdbce25097f1a6329e18c2b77c4f27722.tar.xz linux-4b6efb4bdbce25097f1a6329e18c2b77c4f27722.zip | |
bcache: more detailed error message to bcache_device_link()
This patch adds more accurate error message for specific
ssyfs_create_link() call, to help debugging failure during
bcache device start tup.
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/bcache/super.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 0abee44092bf..d4d8d1300faf 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -693,6 +693,7 @@ static void bcache_device_link(struct bcache_device *d, struct cache_set *c, { unsigned int i; struct cache *ca; + int ret; for_each_cache(ca, d->c, i) bd_link_disk_holder(ca->bdev, d->disk); @@ -700,9 +701,13 @@ static void bcache_device_link(struct bcache_device *d, struct cache_set *c, snprintf(d->name, BCACHEDEVNAME_SIZE, "%s%u", name, d->id); - WARN(sysfs_create_link(&d->kobj, &c->kobj, "cache") || - sysfs_create_link(&c->kobj, &d->kobj, d->name), - "Couldn't create device <-> cache set symlinks"); + ret = sysfs_create_link(&d->kobj, &c->kobj, "cache"); + if (ret < 0) + pr_err("Couldn't create device -> cache set symlink"); + + ret = sysfs_create_link(&c->kobj, &d->kobj, d->name); + if (ret < 0) + pr_err("Couldn't create cache set -> device symlink"); clear_bit(BCACHE_DEV_UNLINK_DONE, &d->flags); } |