From: Hannes Reinecke <hare@suse.de>
Date: Fri, 28 Sep 2018 08:17:21 +0200
Subject: [PATCH] aoe: register default groups with device_add_disk()
Git-commit: 95cf7809bf9169fec4e4b7bb24b8069d8f354f96
Patch-mainline: v4.20-rc1
References: bsc#1104967,FATE#325924
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>
Acked-by: Hannes Reinecke <hare@suse.com>
---
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(-)
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index c0ebda1283cc..015c68017a1c 100644
--- 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);
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 429ebb84b592..ff770e7d9e52 100644
--- 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,
@@ -219,17 +224,6 @@ aoedisk_rm_debugfs(struct aoedev *d)
d->debugfs = NULL;
}
-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)
{
@@ -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);
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index 41060e9cedf2..f29a140cdbc1 100644
--- 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);
--
2.16.4