diff options
Diffstat (limited to 'drivers/block/aoe/aoeblk.c')
| -rw-r--r-- | drivers/block/aoe/aoeblk.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index cb508b754377..d76c5cb3c708 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -132,6 +132,40 @@ static const struct attribute_group attr_group = { .attrs = aoe_attrs, }; +static const struct file_operations aoe_debugfs_fops; + +static void +aoedisk_add_debugfs(struct aoedev *d) +{ + struct dentry *entry; + char *p; + + if (aoe_debugfs_dir == NULL) + return; + p = strchr(d->gd->disk_name, '/'); + if (p == NULL) + p = d->gd->disk_name; + else + p++; + BUG_ON(*p == '\0'); + entry = debugfs_create_file(p, 0444, aoe_debugfs_dir, d, + &aoe_debugfs_fops); + if (IS_ERR_OR_NULL(entry)) { + pr_info("aoe: cannot create debugfs file for %s\n", + d->gd->disk_name); + return; + } + BUG_ON(d->debugfs); + d->debugfs = entry; +} +void +aoedisk_rm_debugfs(struct aoedev *d) +{ + BUG_ON(d->debugfs == NULL); + debugfs_remove(d->debugfs); + d->debugfs = NULL; +} + static int aoedisk_add_sysfs(struct aoedev *d) { @@ -332,6 +366,7 @@ aoeblk_gdalloc(void *vp) add_disk(gd); aoedisk_add_sysfs(d); + aoedisk_add_debugfs(d); spin_lock_irqsave(&d->lock, flags); WARN_ON(!(d->flags & DEVFL_GD_NOW)); |