diff options
| -rw-r--r-- | fs/sysfs/file.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c index ff93c92..9fdf8da 100644 --- a/fs/sysfs/file.c +++ b/fs/sysfs/file.c @@ -521,10 +521,19 @@ int sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode) } inode = victim->d_inode; + mutex_lock(&inode->i_mutex); + newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO); newattrs.ia_valid = ATTR_MODE | ATTR_CTIME; rc = notify_change(victim, &newattrs); + + if (rc == 0) { + mutex_lock(&sysfs_mutex); + victim_sd->s_mode = newattrs.ia_mode; + mutex_unlock(&sysfs_mutex); + } + mutex_unlock(&inode->i_mutex); out: dput(victim); |