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Btrfs: sysfs: provide framework to remove all fsid sysfs kobject

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Just a helper function to clean up the sysfs fsid kobjects.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
This commit is contained in:
Anand Jain 2015-03-10 06:38:32 +08:00 committed by David Sterba
parent 5a13f4308c
commit 2e3e12815a
1 changed files with 16 additions and 1 deletions
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17
fs/btrfs/sysfs.c
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@ -515,7 +515,7 @@ static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add)
return 0;
}
static void btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs)
static void __btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs)
{
if (fs_devs->device_dir_kobj) {
kobject_del(fs_devs->device_dir_kobj);
@ -528,6 +528,21 @@ static void btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs)
wait_for_completion(&fs_devs->kobj_unregister);
}
/* when fs_devs is NULL it will remove all fsid kobject */
static void btrfs_sysfs_remove_fsid(struct btrfs_fs_devices *fs_devs)
{
struct list_head *fs_uuids = btrfs_get_fs_uuids();
if (fs_devs) {
__btrfs_sysfs_remove_fsid(fs_devs);
return;
}
list_for_each_entry(fs_devs, fs_uuids, list) {
__btrfs_sysfs_remove_fsid(fs_devs);
}
}
void btrfs_sysfs_remove_one(struct btrfs_fs_info *fs_info)
{
btrfs_reset_fs_info_ptr(fs_info);