4 files changed, 114 insertions, 39 deletions

diff --git a/fs/autofs/root.c b/fs/autofs/root.c
index 9a0520b50663..11b1ea786d00 100644
--- a/fs/autofs/root.c
+++ b/fs/autofs/root.c
@@ -16,6 +16,7 @@
 #include <linux/slab.h>
 #include <linux/param.h>
 #include <linux/time.h>
+#include <linux/compat.h>
 #include <linux/smp_lock.h>
 #include "autofs_i.h"
 
@@ -25,13 +26,17 @@ static int autofs_root_symlink(struct inode *,struct dentry *,const char *);
 static int autofs_root_unlink(struct inode *,struct dentry *);
 static int autofs_root_rmdir(struct inode *,struct dentry *);
 static int autofs_root_mkdir(struct inode *,struct dentry *,int);
-static int autofs_root_ioctl(struct inode *, struct file *,unsigned int,unsigned long);
+static long autofs_root_ioctl(struct file *,unsigned int,unsigned long);
+static long autofs_root_compat_ioctl(struct file *,unsigned int,unsigned long);
 
 const struct file_operations autofs_root_operations = {
         .llseek         = generic_file_llseek,
         .read           = generic_read_dir,
         .readdir        = autofs_root_readdir,
-        .ioctl          = autofs_root_ioctl,
+        .unlocked_ioctl = autofs_root_ioctl,
+#ifdef CONFIG_COMPAT
+        .compat_ioctl   = autofs_root_compat_ioctl,
+#endif
 };
 
 const struct inode_operations autofs_root_inode_operations = {
@@ -492,6 +497,25 @@ static int autofs_root_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 }
 
 /* Get/set timeout ioctl() operation */
+#ifdef CONFIG_COMPAT
+static inline int autofs_compat_get_set_timeout(struct autofs_sb_info *sbi,
+                                         unsigned int __user *p)
+{
+        unsigned long ntimeout;
+
+        if (get_user(ntimeout, p) ||
+            put_user(sbi->exp_timeout / HZ, p))
+                return -EFAULT;
+
+        if (ntimeout > UINT_MAX/HZ)
+                sbi->exp_timeout = 0;
+        else
+                sbi->exp_timeout = ntimeout * HZ;
+
+        return 0;
+}
+#endif
+
 static inline int autofs_get_set_timeout(struct autofs_sb_info *sbi,
                                          unsigned long __user *p)
 {
@@ -546,7 +570,7 @@ static inline int autofs_expire_run(struct super_block *sb,
  * ioctl()'s on the root directory is the chief method for the daemon to
  * generate kernel reactions
  */
-static int autofs_root_ioctl(struct inode *inode, struct file *filp,
+static int autofs_do_root_ioctl(struct inode *inode, struct file *filp,
                              unsigned int cmd, unsigned long arg)
 {
         struct autofs_sb_info *sbi = autofs_sbi(inode->i_sb);
@@ -571,6 +595,10 @@ static int autofs_root_ioctl(struct inode *inode, struct file *filp,
                 return 0;
         case AUTOFS_IOC_PROTOVER: /* Get protocol version */
                 return autofs_get_protover(argp);
+#ifdef CONFIG_COMPAT
+        case AUTOFS_IOC_SETTIMEOUT32:
+                return autofs_compat_get_set_timeout(sbi, argp);
+#endif
         case AUTOFS_IOC_SETTIMEOUT:
                 return autofs_get_set_timeout(sbi, argp);
         case AUTOFS_IOC_EXPIRE:
@@ -579,4 +607,37 @@ static int autofs_root_ioctl(struct inode *inode, struct file *filp,
         default:
                 return -ENOSYS;
         }
+
+}
+
+static long autofs_root_ioctl(struct file *filp,
+                             unsigned int cmd, unsigned long arg)
+{
+        int ret;
+
+        lock_kernel();
+        ret = autofs_do_root_ioctl(filp->f_path.dentry->d_inode,
+                                   filp, cmd, arg);
+        unlock_kernel();
+
+        return ret;
+}
+
+#ifdef CONFIG_COMPAT
+static long autofs_root_compat_ioctl(struct file *filp,
+                             unsigned int cmd, unsigned long arg)
+{
+        struct inode *inode = filp->f_path.dentry->d_inode;
+        int ret;
+
+        lock_kernel();
+        if (cmd == AUTOFS_IOC_READY || cmd == AUTOFS_IOC_FAIL)
+                ret = autofs_do_root_ioctl(inode, filp, cmd, arg);
+        else
+                ret = autofs_do_root_ioctl(inode, filp, cmd,
+                        (unsigned long)compat_ptr(arg));
+        unlock_kernel();
+
+        return ret;
 }
+#endif
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index db4117ed7803..48e056e70fd6 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -18,7 +18,9 @@
 #include <linux/slab.h>
 #include <linux/param.h>
 #include <linux/time.h>
+#include <linux/compat.h>
 #include <linux/smp_lock.h>
+
 #include "autofs_i.h"
 
 static int autofs4_dir_symlink(struct inode *,struct dentry *,const char *);
@@ -26,6 +28,7 @@ static int autofs4_dir_unlink(struct inode *,struct dentry *);
 static int autofs4_dir_rmdir(struct inode *,struct dentry *);
 static int autofs4_dir_mkdir(struct inode *,struct dentry *,int);
 static long autofs4_root_ioctl(struct file *,unsigned int,unsigned long);
+static long autofs4_root_compat_ioctl(struct file *,unsigned int,unsigned long);
 static int autofs4_dir_open(struct inode *inode, struct file *file);
 static struct dentry *autofs4_lookup(struct inode *,struct dentry *, struct nameidata *);
 static void *autofs4_follow_link(struct dentry *, struct nameidata *);
@@ -40,6 +43,9 @@ const struct file_operations autofs4_root_operations = {
         .readdir        = dcache_readdir,
         .llseek         = dcache_dir_lseek,
         .unlocked_ioctl = autofs4_root_ioctl,
+#ifdef CONFIG_COMPAT
+        .compat_ioctl   = autofs4_root_compat_ioctl,
+#endif
 };
 
 const struct file_operations autofs4_dir_operations = {
@@ -840,6 +846,26 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 }
 
 /* Get/set timeout ioctl() operation */
+#ifdef CONFIG_COMPAT
+static inline int autofs4_compat_get_set_timeout(struct autofs_sb_info *sbi,
+                                         compat_ulong_t __user *p)
+{
+        int rv;
+        unsigned long ntimeout;
+
+        if ((rv = get_user(ntimeout, p)) ||
+             (rv = put_user(sbi->exp_timeout/HZ, p)))
+                return rv;
+
+        if (ntimeout > UINT_MAX/HZ)
+                sbi->exp_timeout = 0;
+        else
+                sbi->exp_timeout = ntimeout * HZ;
+
+        return 0;
+}
+#endif
+
 static inline int autofs4_get_set_timeout(struct autofs_sb_info *sbi,
                                          unsigned long __user *p)
 {
@@ -933,6 +959,10 @@ static int autofs4_root_ioctl_unlocked(struct inode *inode, struct file *filp,
                 return autofs4_get_protosubver(sbi, p);
         case AUTOFS_IOC_SETTIMEOUT:
                 return autofs4_get_set_timeout(sbi, p);
+#ifdef CONFIG_COMPAT
+        case AUTOFS_IOC_SETTIMEOUT32:
+                return autofs4_compat_get_set_timeout(sbi, p);
+#endif
 
         case AUTOFS_IOC_ASKUMOUNT:
                 return autofs4_ask_umount(filp->f_path.mnt, p);
@@ -961,3 +991,22 @@ static long autofs4_root_ioctl(struct file *filp,
 
         return ret;
 }
+
+#ifdef CONFIG_COMPAT
+static long autofs4_root_compat_ioctl(struct file *filp,
+                             unsigned int cmd, unsigned long arg)
+{
+        struct inode *inode = filp->f_path.dentry->d_inode;
+        int ret;
+
+        lock_kernel();
+        if (cmd == AUTOFS_IOC_READY || cmd == AUTOFS_IOC_FAIL)
+                ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, arg);
+        else
+                ret = autofs4_root_ioctl_unlocked(inode, filp, cmd,
+                        (unsigned long)compat_ptr(arg));
+        unlock_kernel();
+
+        return ret;
+}
+#endif
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 641640dc7ae5..618f38136304 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -131,23 +131,6 @@ static int w_long(unsigned int fd, unsigned int cmd,
         return err;
 }
 
-static int rw_long(unsigned int fd, unsigned int cmd,
-                compat_ulong_t __user *argp)
-{
-        mm_segment_t old_fs = get_fs();
-        int err;
-        unsigned long val;
-
-        if(get_user(val, argp))
-                return -EFAULT;
-        set_fs (KERNEL_DS);
-        err = sys_ioctl(fd, cmd, (unsigned long)&val);
-        set_fs (old_fs);
-        if (!err && put_user(val, argp))
-                return -EFAULT;
-        return err;
-}
-
 struct compat_video_event {
         int32_t         type;
         compat_time_t   timestamp;
@@ -594,12 +577,6 @@ static int do_smb_getmountuid(unsigned int fd, unsigned int cmd,
         return err;
 }
 
-static int ioc_settimeout(unsigned int fd, unsigned int cmd,
-                compat_ulong_t __user *argp)
-{
-        return rw_long(fd, AUTOFS_IOC_SETTIMEOUT, argp);
-}
-
 /* Bluetooth ioctls */
 #define HCIUARTSETPROTO _IOW('U', 200, int)
 #define HCIUARTGETPROTO _IOR('U', 201, int)
@@ -1281,13 +1258,6 @@ COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
 COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
 COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
 COMPATIBLE_IOCTL(OSS_GETVERSION)
-/* AUTOFS */
-COMPATIBLE_IOCTL(AUTOFS_IOC_CATATONIC)
-COMPATIBLE_IOCTL(AUTOFS_IOC_PROTOVER)
-COMPATIBLE_IOCTL(AUTOFS_IOC_EXPIRE)
-COMPATIBLE_IOCTL(AUTOFS_IOC_EXPIRE_MULTI)
-COMPATIBLE_IOCTL(AUTOFS_IOC_PROTOSUBVER)
-COMPATIBLE_IOCTL(AUTOFS_IOC_ASKUMOUNT)
 /* Raw devices */
 COMPATIBLE_IOCTL(RAW_SETBIND)
 COMPATIBLE_IOCTL(RAW_GETBIND)
@@ -1552,9 +1522,6 @@ static long do_ioctl_trans(int fd, unsigned int cmd,
         case RAW_GETBIND:
                 return raw_ioctl(fd, cmd, argp);
 #endif
-#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93,0x64,unsigned int)
-        case AUTOFS_IOC_SETTIMEOUT32:
-                return ioc_settimeout(fd, cmd, argp);
         /* One SMB ioctl needs translations. */
 #define SMB_IOC_GETMOUNTUID_32 _IOR('u', 1, compat_uid_t)
         case SMB_IOC_GETMOUNTUID_32:
@@ -1609,9 +1576,6 @@ static long do_ioctl_trans(int fd, unsigned int cmd,
         case KDSKBMETA:
         case KDSKBLED:
         case KDSETLED:
-        /* AUTOFS */
-        case AUTOFS_IOC_READY:
-        case AUTOFS_IOC_FAIL:
         /* NBD */
         case NBD_SET_SOCK:
         case NBD_SET_BLKSIZE:
diff --git a/include/linux/auto_fs.h b/include/linux/auto_fs.h
index 7b09c8348fd3..da64e15004b6 100644
--- a/include/linux/auto_fs.h
+++ b/include/linux/auto_fs.h
@@ -79,6 +79,7 @@ struct autofs_packet_expire {
 #define AUTOFS_IOC_FAIL       _IO(0x93,0x61)
 #define AUTOFS_IOC_CATATONIC  _IO(0x93,0x62)
 #define AUTOFS_IOC_PROTOVER   _IOR(0x93,0x63,int)
+#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93,0x64,compat_ulong_t)
 #define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93,0x64,unsigned long)
 #define AUTOFS_IOC_EXPIRE     _IOR(0x93,0x65,struct autofs_packet_expire)