diff options
Diffstat (limited to 'fs/exfat/file.c')
| -rw-r--r-- | fs/exfat/file.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/exfat/file.c b/fs/exfat/file.c index 860c1f3b2cd7..a945ede3bf97 100644 --- a/fs/exfat/file.c +++ b/fs/exfat/file.c @@ -287,6 +287,9 @@ int exfat_setattr(struct mnt_idmap *idmap, struct dentry *dentry, unsigned int ia_valid; int error; + if (unlikely(exfat_forced_shutdown(inode->i_sb))) + return -EIO; + if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size > i_size_read(inode)) { error = exfat_cont_expand(inode, attr->ia_size); @@ -470,6 +473,19 @@ static int exfat_ioctl_fitrim(struct inode *inode, unsigned long arg) return 0; } +static int exfat_ioctl_shutdown(struct super_block *sb, unsigned long arg) +{ + u32 flags; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + if (get_user(flags, (__u32 __user *)arg)) + return -EFAULT; + + return exfat_force_shutdown(sb, flags); +} + long exfat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { struct inode *inode = file_inode(filp); @@ -480,6 +496,8 @@ long exfat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return exfat_ioctl_get_attributes(inode, user_attr); case FAT_IOCTL_SET_ATTRIBUTES: return exfat_ioctl_set_attributes(filp, user_attr); + case EXFAT_IOC_SHUTDOWN: + return exfat_ioctl_shutdown(inode->i_sb, arg); case FITRIM: return exfat_ioctl_fitrim(inode, arg); default: @@ -500,6 +518,9 @@ int exfat_file_fsync(struct file *filp, loff_t start, loff_t end, int datasync) struct inode *inode = filp->f_mapping->host; int err; + if (unlikely(exfat_forced_shutdown(inode->i_sb))) + return -EIO; + err = __generic_file_fsync(filp, start, end, datasync); if (err) return err; |