diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/bad_inode.c | 7 | ||||
| -rw-r--r-- | fs/compat_ioctl.c | 3 | ||||
| -rw-r--r-- | fs/ioctl.c | 18 | ||||
| -rw-r--r-- | fs/proc/inode.c | 17 |
4 files changed, 9 insertions, 36 deletions
diff --git a/fs/bad_inode.c b/fs/bad_inode.c index 52e59bf4aa5..f024d8aadde 100644 --- a/fs/bad_inode.c +++ b/fs/bad_inode.c @@ -55,12 +55,6 @@ static unsigned int bad_file_poll(struct file *filp, poll_table *wait) return POLLERR; } -static int bad_file_ioctl (struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) -{ - return -EIO; -} - static long bad_file_unlocked_ioctl(struct file *file, unsigned cmd, unsigned long arg) { @@ -159,7 +153,6 @@ static const struct file_operations bad_file_ops = .aio_write = bad_file_aio_write, .readdir = bad_file_readdir, .poll = bad_file_poll, - .ioctl = bad_file_ioctl, .unlocked_ioctl = bad_file_unlocked_ioctl, .compat_ioctl = bad_file_compat_ioctl, .mmap = bad_file_mmap, diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 70227e0dc01..03e59aa318e 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -1699,8 +1699,7 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd, goto out_fput; } - if (!filp->f_op || - (!filp->f_op->ioctl && !filp->f_op->unlocked_ioctl)) + if (!filp->f_op || !filp->f_op->unlocked_ioctl) goto do_ioctl; break; } diff --git a/fs/ioctl.c b/fs/ioctl.c index 2d140a71386..f855ea4fc88 100644 --- a/fs/ioctl.c +++ b/fs/ioctl.c @@ -29,7 +29,6 @@ * @arg: command-specific argument for ioctl * * Invokes filesystem specific ->unlocked_ioctl, if one exists; otherwise - * invokes filesystem specific ->ioctl method. If neither method exists, * returns -ENOTTY. * * Returns 0 on success, -errno on error. @@ -39,21 +38,12 @@ static long vfs_ioctl(struct file *filp, unsigned int cmd, { int error = -ENOTTY; - if (!filp->f_op) + if (!filp->f_op || !filp->f_op->unlocked_ioctl) goto out; - if (filp->f_op->unlocked_ioctl) { - error = filp->f_op->unlocked_ioctl(filp, cmd, arg); - if (error == -ENOIOCTLCMD) - error = -EINVAL; - goto out; - } else if (filp->f_op->ioctl) { - lock_kernel(); - error = filp->f_op->ioctl(filp->f_path.dentry->d_inode, - filp, cmd, arg); - unlock_kernel(); - } - + error = filp->f_op->unlocked_ioctl(filp, cmd, arg); + if (error == -ENOIOCTLCMD) + error = -EINVAL; out: return error; } diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 23561cda724..9c2b5f48487 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -214,8 +214,7 @@ static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigne { struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); long rv = -ENOTTY; - long (*unlocked_ioctl)(struct file *, unsigned int, unsigned long); - int (*ioctl)(struct inode *, struct file *, unsigned int, unsigned long); + long (*ioctl)(struct file *, unsigned int, unsigned long); spin_lock(&pde->pde_unload_lock); if (!pde->proc_fops) { @@ -223,19 +222,11 @@ static long proc_reg_unlocked_ioctl(struct file *file, unsigned int cmd, unsigne return rv; } pde->pde_users++; - unlocked_ioctl = pde->proc_fops->unlocked_ioctl; - ioctl = pde->proc_fops->ioctl; + ioctl = pde->proc_fops->unlocked_ioctl; spin_unlock(&pde->pde_unload_lock); - if (unlocked_ioctl) { - rv = unlocked_ioctl(file, cmd, arg); - if (rv == -ENOIOCTLCMD) - rv = -EINVAL; - } else if (ioctl) { - WARN_ONCE(1, "Procfs ioctl handlers must use unlocked_ioctl, " - "%pf will be called without the Bkl held\n", ioctl); - rv = ioctl(file->f_path.dentry->d_inode, file, cmd, arg); - } + if (ioctl) + rv = ioctl(file, cmd, arg); pde_users_dec(pde); return rv; |