diff options
Diffstat (limited to 'security/inode.c')
| -rw-r--r-- | security/inode.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/security/inode.c b/security/inode.c index 9e7cde913667..da3ab44c8e57 100644 --- a/security/inode.c +++ b/security/inode.c @@ -296,7 +296,7 @@ void securityfs_remove(struct dentry *dentry) { struct inode *dir; - if (!dentry || IS_ERR(dentry)) + if (IS_ERR_OR_NULL(dentry)) return; dir = d_inode(dentry->d_parent); @@ -313,6 +313,31 @@ void securityfs_remove(struct dentry *dentry) } EXPORT_SYMBOL_GPL(securityfs_remove); +static void remove_one(struct dentry *victim) +{ + simple_release_fs(&mount, &mount_count); +} + +/** + * securityfs_recursive_remove - recursively removes a file or directory + * + * @dentry: a pointer to a the dentry of the file or directory to be removed. + * + * This function recursively removes a file or directory in securityfs that was + * previously created with a call to another securityfs function (like + * securityfs_create_file() or variants thereof.) + */ +void securityfs_recursive_remove(struct dentry *dentry) +{ + if (IS_ERR_OR_NULL(dentry)) + return; + + simple_pin_fs(&fs_type, &mount, &mount_count); + simple_recursive_removal(dentry, remove_one); + simple_release_fs(&mount, &mount_count); +} +EXPORT_SYMBOL_GPL(securityfs_recursive_remove); + #ifdef CONFIG_SECURITY static struct dentry *lsm_dentry; static ssize_t lsm_read(struct file *filp, char __user *buf, size_t count, |