From: Greg Kroah-Hartman gregkh@linuxfoundation.org
From: Hannes Reinecke hare@suse.de
commit 95cf7809bf9169fec4e4b7bb24b8069d8f354f96 upstream.
Register default sysfs groups during device_add_disk() to avoid a race condition with udev during startup.
Signed-off-by: Hannes Reinecke hare@suse.com Reviewed-by: Christoph Hellwig hch@lst.de Acked-by: Ed L. Cachin ed.cashin@acm.org Reviewed-by: Bart Van Assche bart.vanassche@wdc.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Jeffle Xu jefflexu@linux.alibaba.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/block/aoe/aoe.h | 1 - drivers/block/aoe/aoeblk.c | 21 +++++++-------------- drivers/block/aoe/aoedev.c | 1 - 3 files changed, 7 insertions(+), 16 deletions(-)
--- a/drivers/block/aoe/aoe.h +++ b/drivers/block/aoe/aoe.h @@ -201,7 +201,6 @@ int aoeblk_init(void); void aoeblk_exit(void); void aoeblk_gdalloc(void *); void aoedisk_rm_debugfs(struct aoedev *d); -void aoedisk_rm_sysfs(struct aoedev *d);
int aoechr_init(void); void aoechr_exit(void); --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -177,10 +177,15 @@ static struct attribute *aoe_attrs[] = { NULL, };
-static const struct attribute_group attr_group = { +static const struct attribute_group aoe_attr_group = { .attrs = aoe_attrs, };
+static const struct attribute_group *aoe_attr_groups[] = { + &aoe_attr_group, + NULL, +}; + static const struct file_operations aoe_debugfs_fops = { .open = aoe_debugfs_open, .read = seq_read, @@ -220,17 +225,6 @@ aoedisk_rm_debugfs(struct aoedev *d) }
static int -aoedisk_add_sysfs(struct aoedev *d) -{ - return sysfs_create_group(&disk_to_dev(d->gd)->kobj, &attr_group); -} -void -aoedisk_rm_sysfs(struct aoedev *d) -{ - sysfs_remove_group(&disk_to_dev(d->gd)->kobj, &attr_group); -} - -static int aoeblk_open(struct block_device *bdev, fmode_t mode) { struct aoedev *d = bdev->bd_disk->private_data; @@ -417,8 +411,7 @@ aoeblk_gdalloc(void *vp)
spin_unlock_irqrestore(&d->lock, flags);
- add_disk(gd); - aoedisk_add_sysfs(d); + device_add_disk(NULL, gd, aoe_attr_groups); aoedisk_add_debugfs(d);
spin_lock_irqsave(&d->lock, flags); --- a/drivers/block/aoe/aoedev.c +++ b/drivers/block/aoe/aoedev.c @@ -275,7 +275,6 @@ freedev(struct aoedev *d) del_timer_sync(&d->timer); if (d->gd) { aoedisk_rm_debugfs(d); - aoedisk_rm_sysfs(d); del_gendisk(d->gd); put_disk(d->gd); blk_cleanup_queue(d->blkq);