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| author | Anand Jain <Anand.Jain@oracle.com> | 2015-03-10 06:38:24 +0800 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2015-05-27 12:27:19 +0200 |
| commit | aaf13305160490531b0d5ee4d56d32fc09f9bfa0 (patch) | |
| tree | b6388608a420a3f24a3b7aa6d33cbd0ef2efd269 /fs/btrfs/sysfs.c | |
| parent | 4d435731f99db87020730c4b17e1da148908340e (diff) | |
| download | linux-0-day-aaf13305160490531b0d5ee4d56d32fc09f9bfa0.tar.gz linux-0-day-aaf13305160490531b0d5ee4d56d32fc09f9bfa0.tar.xz | |
Btrfs: sysfs: reorder the kobject creations
As of now the order in which the kobjects are created
at btrfs_sysfs_add_one() is..
fsid
features
unknown features (dynamic features)
devices.
Since we would move fsid and device kobject to fs_devices
from fs_info structure, this patch will reorder in which
the kobjects are created as below.
fsid
devices
features
unknown features (dynamic features)
And hence the btrfs_sysfs_remove_one() will follow the same
in reverse order. and the device kobject destroy now can
be moved into the function __btrfs_sysfs_remove_one()
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'fs/btrfs/sysfs.c')
| -rw-r--r-- | fs/btrfs/sysfs.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c index 6218d31a6912f..8eb2463c973cf 100644 --- a/fs/btrfs/sysfs.c +++ b/fs/btrfs/sysfs.c @@ -510,6 +510,13 @@ static int addrm_unknown_feature_attrs(struct btrfs_fs_info *fs_info, bool add) static void __btrfs_sysfs_remove_one(struct btrfs_fs_info *fs_info) { + if (fs_info->device_dir_kobj) { + btrfs_kobj_rm_device(fs_info, NULL); + kobject_del(fs_info->device_dir_kobj); + kobject_put(fs_info->device_dir_kobj); + fs_info->device_dir_kobj = NULL; + } + kobject_del(&fs_info->super_kobj); kobject_put(&fs_info->super_kobj); wait_for_completion(&fs_info->kobj_unregister); @@ -522,12 +529,6 @@ void btrfs_sysfs_remove_one(struct btrfs_fs_info *fs_info) kobject_del(fs_info->space_info_kobj); kobject_put(fs_info->space_info_kobj); } - if (fs_info->device_dir_kobj) { - btrfs_kobj_rm_device(fs_info, NULL); - kobject_del(fs_info->device_dir_kobj); - kobject_put(fs_info->device_dir_kobj); - fs_info->device_dir_kobj = NULL; - } addrm_unknown_feature_attrs(fs_info, false); sysfs_remove_group(&fs_info->super_kobj, &btrfs_feature_attr_group); __btrfs_sysfs_remove_one(fs_info); @@ -700,6 +701,12 @@ int btrfs_sysfs_add_one(struct btrfs_fs_info *fs_info) if (error) return error; + error = btrfs_kobj_add_device(fs_info, NULL); + if (error) { + __btrfs_sysfs_remove_one(fs_info); + return error; + } + error = sysfs_create_group(&fs_info->super_kobj, &btrfs_feature_attr_group); if (error) { @@ -711,10 +718,6 @@ int btrfs_sysfs_add_one(struct btrfs_fs_info *fs_info) if (error) goto failure; - error = btrfs_kobj_add_device(fs_info, NULL); - if (error) - goto failure; - fs_info->space_info_kobj = kobject_create_and_add("allocation", &fs_info->super_kobj); if (!fs_info->space_info_kobj) { |