diff options
| -rw-r--r-- | fs/configfs/dir.c | 14 | ||||
| -rw-r--r-- | fs/configfs/symlink.c | 6 |
2 files changed, 13 insertions, 7 deletions
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c index 2495f23e33f4..cb5ea44846af 100644 --- a/fs/configfs/dir.c +++ b/fs/configfs/dir.c @@ -370,6 +370,9 @@ static int configfs_detach_prep(struct dentry *dentry, struct mutex **wait_mutex struct configfs_dirent *sd; int ret; + /* Mark that we're trying to drop the group */ + parent_sd->s_type |= CONFIGFS_USET_DROPPING; + ret = -EBUSY; if (!list_empty(&parent_sd->s_links)) goto out; @@ -385,8 +388,6 @@ static int configfs_detach_prep(struct dentry *dentry, struct mutex **wait_mutex *wait_mutex = &sd->s_dentry->d_inode->i_mutex; return -EAGAIN; } - /* Mark that we're trying to drop the group */ - sd->s_type |= CONFIGFS_USET_DROPPING; /* * Yup, recursive. If there's a problem, blame @@ -414,12 +415,11 @@ static void configfs_detach_rollback(struct dentry *dentry) struct configfs_dirent *parent_sd = dentry->d_fsdata; struct configfs_dirent *sd; - list_for_each_entry(sd, &parent_sd->s_children, s_sibling) { - if (sd->s_type & CONFIGFS_USET_DEFAULT) { + parent_sd->s_type &= ~CONFIGFS_USET_DROPPING; + + list_for_each_entry(sd, &parent_sd->s_children, s_sibling) + if (sd->s_type & CONFIGFS_USET_DEFAULT) configfs_detach_rollback(sd->s_dentry); - sd->s_type &= ~CONFIGFS_USET_DROPPING; - } - } } static void detach_attrs(struct config_item * item) diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c index 0004d18c40ac..c12801a12c34 100644 --- a/fs/configfs/symlink.c +++ b/fs/configfs/symlink.c @@ -78,6 +78,12 @@ static int create_link(struct config_item *parent_item, if (sl) { sl->sl_target = config_item_get(item); spin_lock(&configfs_dirent_lock); + if (target_sd->s_type & CONFIGFS_USET_DROPPING) { + spin_unlock(&configfs_dirent_lock); + config_item_put(item); + kfree(sl); + return -ENOENT; + } list_add(&sl->sl_list, &target_sd->s_links); spin_unlock(&configfs_dirent_lock); ret = configfs_create_link(sl, parent_item->ci_dentry, |