]> pilppa.com Git - linux-2.6-omap-h63xx.git/commitdiff
[PATCH] BLOCK: Move common FS-specific ioctls to linux/fs.h [try #6]
authorDavid Howells <dhowells@redhat.com>
Tue, 29 Aug 2006 18:06:16 +0000 (19:06 +0100)
committerJens Axboe <axboe@nelson.home.kernel.dk>
Sat, 30 Sep 2006 18:52:28 +0000 (20:52 +0200)
Move common FS-specific ioctls from linux/ext2_fs.h to linux/fs.h as FS_IOC_*
and FS_IOC32_* and have the users of them use those as a base.

Also move the GETFLAGS/SETFLAGS flags to linux/fs.h as FS_*_FL macros, and then
have the other users use them as a base.

Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/cifs/ioctl.c
fs/compat_ioctl.c
fs/hfsplus/hfsplus_fs.h
fs/hfsplus/ioctl.c
fs/jfs/ioctl.c
include/linux/ext2_fs.h
include/linux/ext3_fs.h
include/linux/fs.h
include/linux/reiserfs_fs.h

index b0ea6687ab55e8116a4790a52682e24c71146c34..e34c7db00f6feccaba099b9604352e7745322a03 100644 (file)
@@ -22,7 +22,6 @@
  */
 
 #include <linux/fs.h>
-#include <linux/ext2_fs.h>
 #include "cifspdu.h"
 #include "cifsglob.h"
 #include "cifsproto.h"
@@ -74,7 +73,7 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
                        }
                        break;
 #ifdef CONFIG_CIFS_POSIX
-               case EXT2_IOC_GETFLAGS:
+               case FS_IOC_GETFLAGS:
                        if(CIFS_UNIX_EXTATTR_CAP & caps) {
                                if (pSMBFile == NULL)
                                        break;
@@ -82,12 +81,12 @@ int cifs_ioctl (struct inode * inode, struct file * filep,
                                        &ExtAttrBits, &ExtAttrMask);
                                if(rc == 0)
                                        rc = put_user(ExtAttrBits &
-                                               EXT2_FL_USER_VISIBLE,
+                                               FS_FL_USER_VISIBLE,
                                                (int __user *)arg);
                        }
                        break;
 
-               case EXT2_IOC_SETFLAGS:
+               case FS_IOC_SETFLAGS:
                        if(CIFS_UNIX_EXTATTR_CAP & caps) {
                                if(get_user(ExtAttrBits,(int __user *)arg)) {
                                        rc = -EFAULT;
index 3b0cf7fbd95a995a45eaa48f9a56bb14db332cfe..bd9c4f49d4e52ce4c18e4f94acb16c3e28c37315 100644 (file)
 #include <linux/dvb/video.h>
 #include <linux/lp.h>
 
-/* Aiee. Someone does not find a difference between int and long */
-#define EXT2_IOC32_GETFLAGS               _IOR('f', 1, int)
-#define EXT2_IOC32_SETFLAGS               _IOW('f', 2, int)
-#define EXT3_IOC32_GETVERSION             _IOR('f', 3, int)
-#define EXT3_IOC32_SETVERSION             _IOW('f', 4, int)
-#define EXT3_IOC32_GETRSVSZ               _IOR('f', 5, int)
-#define EXT3_IOC32_SETRSVSZ               _IOW('f', 6, int)
-#define EXT3_IOC32_GROUP_EXTEND           _IOW('f', 7, unsigned int)
-#ifdef CONFIG_JBD_DEBUG
-#define EXT3_IOC32_WAIT_FOR_READONLY      _IOR('f', 99, int)
-#endif
-
-#define EXT2_IOC32_GETVERSION             _IOR('v', 1, int)
-#define EXT2_IOC32_SETVERSION             _IOW('v', 2, int)
-
 static int do_ioctl32_pointer(unsigned int fd, unsigned int cmd,
                              unsigned long arg, struct file *f)
 {
index 8a1ca5ef7ada1f26468d031ee0882d61e350ca36..3915635b4470bcaa29ce094acb10b9620bf8d2c9 100644 (file)
@@ -246,12 +246,8 @@ struct hfsplus_readdir_data {
 
 /* ext2 ioctls (EXT2_IOC_GETFLAGS and EXT2_IOC_SETFLAGS) to support
  * chattr/lsattr */
-#define HFSPLUS_IOC_EXT2_GETFLAGS      _IOR('f', 1, long)
-#define HFSPLUS_IOC_EXT2_SETFLAGS      _IOW('f', 2, long)
-
-#define EXT2_FLAG_IMMUTABLE            0x00000010 /* Immutable file */
-#define EXT2_FLAG_APPEND               0x00000020 /* writes to file may only append */
-#define EXT2_FLAG_NODUMP               0x00000040 /* do not dump file */
+#define HFSPLUS_IOC_EXT2_GETFLAGS      FS_IOC_GETFLAGS
+#define HFSPLUS_IOC_EXT2_SETFLAGS      FS_IOC_SETFLAGS
 
 
 /*
index 13cf848ac8330ef03ebfbce82e3ce3ba07d5bc2c..79fd10402ea3479d3aaad8b7f6b780fa6a362216 100644 (file)
@@ -28,11 +28,11 @@ int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
        case HFSPLUS_IOC_EXT2_GETFLAGS:
                flags = 0;
                if (HFSPLUS_I(inode).rootflags & HFSPLUS_FLG_IMMUTABLE)
-                       flags |= EXT2_FLAG_IMMUTABLE; /* EXT2_IMMUTABLE_FL */
+                       flags |= FS_IMMUTABLE_FL; /* EXT2_IMMUTABLE_FL */
                if (HFSPLUS_I(inode).rootflags & HFSPLUS_FLG_APPEND)
-                       flags |= EXT2_FLAG_APPEND; /* EXT2_APPEND_FL */
+                       flags |= FS_APPEND_FL; /* EXT2_APPEND_FL */
                if (HFSPLUS_I(inode).userflags & HFSPLUS_FLG_NODUMP)
-                       flags |= EXT2_FLAG_NODUMP; /* EXT2_NODUMP_FL */
+                       flags |= FS_NODUMP_FL; /* EXT2_NODUMP_FL */
                return put_user(flags, (int __user *)arg);
        case HFSPLUS_IOC_EXT2_SETFLAGS: {
                if (IS_RDONLY(inode))
@@ -44,32 +44,31 @@ int hfsplus_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
                if (get_user(flags, (int __user *)arg))
                        return -EFAULT;
 
-               if (flags & (EXT2_FLAG_IMMUTABLE|EXT2_FLAG_APPEND) ||
+               if (flags & (FS_IMMUTABLE_FL|FS_APPEND_FL) ||
                    HFSPLUS_I(inode).rootflags & (HFSPLUS_FLG_IMMUTABLE|HFSPLUS_FLG_APPEND)) {
                        if (!capable(CAP_LINUX_IMMUTABLE))
                                return -EPERM;
                }
 
                /* don't silently ignore unsupported ext2 flags */
-               if (flags & ~(EXT2_FLAG_IMMUTABLE|EXT2_FLAG_APPEND|
-                             EXT2_FLAG_NODUMP))
+               if (flags & ~(FS_IMMUTABLE_FL|FS_APPEND_FL|FS_NODUMP_FL))
                        return -EOPNOTSUPP;
 
-               if (flags & EXT2_FLAG_IMMUTABLE) { /* EXT2_IMMUTABLE_FL */
+               if (flags & FS_IMMUTABLE_FL) { /* EXT2_IMMUTABLE_FL */
                        inode->i_flags |= S_IMMUTABLE;
                        HFSPLUS_I(inode).rootflags |= HFSPLUS_FLG_IMMUTABLE;
                } else {
                        inode->i_flags &= ~S_IMMUTABLE;
                        HFSPLUS_I(inode).rootflags &= ~HFSPLUS_FLG_IMMUTABLE;
                }
-               if (flags & EXT2_FLAG_APPEND) { /* EXT2_APPEND_FL */
+               if (flags & FS_APPEND_FL) { /* EXT2_APPEND_FL */
                        inode->i_flags |= S_APPEND;
                        HFSPLUS_I(inode).rootflags |= HFSPLUS_FLG_APPEND;
                } else {
                        inode->i_flags &= ~S_APPEND;
                        HFSPLUS_I(inode).rootflags &= ~HFSPLUS_FLG_APPEND;
                }
-               if (flags & EXT2_FLAG_NODUMP) /* EXT2_NODUMP_FL */
+               if (flags & FS_NODUMP_FL) /* EXT2_NODUMP_FL */
                        HFSPLUS_I(inode).userflags |= HFSPLUS_FLG_NODUMP;
                else
                        HFSPLUS_I(inode).userflags &= ~HFSPLUS_FLG_NODUMP;
index 67b3774820eb663086675ef4a057066e56e93e94..37db524882628dd3b4a4eed92b7a3243d6e61b60 100644 (file)
@@ -6,7 +6,6 @@
  */
 
 #include <linux/fs.h>
-#include <linux/ext2_fs.h>
 #include <linux/ctype.h>
 #include <linux/capability.h>
 #include <linux/time.h>
@@ -22,13 +21,13 @@ static struct {
        long jfs_flag;
        long ext2_flag;
 } jfs_map[] = {
-       {JFS_NOATIME_FL, EXT2_NOATIME_FL},
-       {JFS_DIRSYNC_FL, EXT2_DIRSYNC_FL},
-       {JFS_SYNC_FL, EXT2_SYNC_FL},
-       {JFS_SECRM_FL, EXT2_SECRM_FL},
-       {JFS_UNRM_FL, EXT2_UNRM_FL},
-       {JFS_APPEND_FL, EXT2_APPEND_FL},
-       {JFS_IMMUTABLE_FL, EXT2_IMMUTABLE_FL},
+       {JFS_NOATIME_FL,        FS_NOATIME_FL},
+       {JFS_DIRSYNC_FL,        FS_DIRSYNC_FL},
+       {JFS_SYNC_FL,           FS_SYNC_FL},
+       {JFS_SECRM_FL,          FS_SECRM_FL},
+       {JFS_UNRM_FL,           FS_UNRM_FL},
+       {JFS_APPEND_FL,         FS_APPEND_FL},
+       {JFS_IMMUTABLE_FL,      FS_IMMUTABLE_FL},
        {0, 0},
 };
 
index 33a1aa10732916e222347728888b979b69c98b07..153d755376a42344d046482e7c7606dcea4bb373 100644 (file)
@@ -165,41 +165,49 @@ struct ext2_group_desc
 #define        EXT2_N_BLOCKS                   (EXT2_TIND_BLOCK + 1)
 
 /*
- * Inode flags
+ * Inode flags (GETFLAGS/SETFLAGS)
  */
-#define        EXT2_SECRM_FL                   0x00000001 /* Secure deletion */
-#define        EXT2_UNRM_FL                    0x00000002 /* Undelete */
-#define        EXT2_COMPR_FL                   0x00000004 /* Compress file */
-#define EXT2_SYNC_FL                   0x00000008 /* Synchronous updates */
-#define EXT2_IMMUTABLE_FL              0x00000010 /* Immutable file */
-#define EXT2_APPEND_FL                 0x00000020 /* writes to file may only append */
-#define EXT2_NODUMP_FL                 0x00000040 /* do not dump file */
-#define EXT2_NOATIME_FL                        0x00000080 /* do not update atime */
+#define        EXT2_SECRM_FL                   FS_SECRM_FL     /* Secure deletion */
+#define        EXT2_UNRM_FL                    FS_UNRM_FL      /* Undelete */
+#define        EXT2_COMPR_FL                   FS_COMPR_FL     /* Compress file */
+#define EXT2_SYNC_FL                   FS_SYNC_FL      /* Synchronous updates */
+#define EXT2_IMMUTABLE_FL              FS_IMMUTABLE_FL /* Immutable file */
+#define EXT2_APPEND_FL                 FS_APPEND_FL    /* writes to file may only append */
+#define EXT2_NODUMP_FL                 FS_NODUMP_FL    /* do not dump file */
+#define EXT2_NOATIME_FL                        FS_NOATIME_FL   /* do not update atime */
 /* Reserved for compression usage... */
-#define EXT2_DIRTY_FL                  0x00000100
-#define EXT2_COMPRBLK_FL               0x00000200 /* One or more compressed clusters */
-#define EXT2_NOCOMP_FL                 0x00000400 /* Don't compress */
-#define EXT2_ECOMPR_FL                 0x00000800 /* Compression error */
+#define EXT2_DIRTY_FL                  FS_DIRTY_FL
+#define EXT2_COMPRBLK_FL               FS_COMPRBLK_FL  /* One or more compressed clusters */
+#define EXT2_NOCOMP_FL                 FS_NOCOMP_FL    /* Don't compress */
+#define EXT2_ECOMPR_FL                 FS_ECOMPR_FL    /* Compression error */
 /* End compression flags --- maybe not all used */     
-#define EXT2_BTREE_FL                  0x00001000 /* btree format dir */
-#define EXT2_INDEX_FL                  0x00001000 /* hash-indexed directory */
-#define EXT2_IMAGIC_FL                 0x00002000 /* AFS directory */
-#define EXT2_JOURNAL_DATA_FL           0x00004000 /* Reserved for ext3 */
-#define EXT2_NOTAIL_FL                 0x00008000 /* file tail should not be merged */
-#define EXT2_DIRSYNC_FL                        0x00010000 /* dirsync behaviour (directories only) */
-#define EXT2_TOPDIR_FL                 0x00020000 /* Top of directory hierarchies*/
-#define EXT2_RESERVED_FL               0x80000000 /* reserved for ext2 lib */
-
-#define EXT2_FL_USER_VISIBLE           0x0003DFFF /* User visible flags */
-#define EXT2_FL_USER_MODIFIABLE                0x000380FF /* User modifiable flags */
+#define EXT2_BTREE_FL                  FS_BTREE_FL     /* btree format dir */
+#define EXT2_INDEX_FL                  FS_INDEX_FL     /* hash-indexed directory */
+#define EXT2_IMAGIC_FL                 FS_IMAGIC_FL    /* AFS directory */
+#define EXT2_JOURNAL_DATA_FL           FS_JOURNAL_DATA_FL /* Reserved for ext3 */
+#define EXT2_NOTAIL_FL                 FS_NOTAIL_FL    /* file tail should not be merged */
+#define EXT2_DIRSYNC_FL                        FS_DIRSYNC_FL   /* dirsync behaviour (directories only) */
+#define EXT2_TOPDIR_FL                 FS_TOPDIR_FL    /* Top of directory hierarchies*/
+#define EXT2_RESERVED_FL               FS_RESERVED_FL  /* reserved for ext2 lib */
+
+#define EXT2_FL_USER_VISIBLE           FS_FL_USER_VISIBLE      /* User visible flags */
+#define EXT2_FL_USER_MODIFIABLE                FS_FL_USER_MODIFIABLE   /* User modifiable flags */
 
 /*
  * ioctl commands
  */
-#define        EXT2_IOC_GETFLAGS               _IOR('f', 1, long)
-#define        EXT2_IOC_SETFLAGS               _IOW('f', 2, long)
-#define        EXT2_IOC_GETVERSION             _IOR('v', 1, long)
-#define        EXT2_IOC_SETVERSION             _IOW('v', 2, long)
+#define        EXT2_IOC_GETFLAGS               FS_IOC_GETFLAGS
+#define        EXT2_IOC_SETFLAGS               FS_IOC_SETFLAGS
+#define        EXT2_IOC_GETVERSION             FS_IOC_GETVERSION
+#define        EXT2_IOC_SETVERSION             FS_IOC_SETVERSION
+
+/*
+ * ioctl commands in 32 bit emulation
+ */
+#define EXT2_IOC32_GETFLAGS            FS_IOC32_GETFLAGS
+#define EXT2_IOC32_SETFLAGS            FS_IOC32_SETFLAGS
+#define EXT2_IOC32_GETVERSION          FS_IOC32_GETVERSION
+#define EXT2_IOC32_SETVERSION          FS_IOC32_SETVERSION
 
 /*
  * Structure of an inode on the disk
index cc08f56750da7cf7ed68c1349db063fd01a6be68..a7a01ff44669209e7aea750d941f3cc80d910216 100644 (file)
@@ -216,20 +216,32 @@ struct ext3_new_group_data {
 /*
  * ioctl commands
  */
-#define        EXT3_IOC_GETFLAGS               _IOR('f', 1, long)
-#define        EXT3_IOC_SETFLAGS               _IOW('f', 2, long)
+#define        EXT3_IOC_GETFLAGS               FS_IOC_GETFLAGS
+#define        EXT3_IOC_SETFLAGS               FS_IOC_SETFLAGS
 #define        EXT3_IOC_GETVERSION             _IOR('f', 3, long)
 #define        EXT3_IOC_SETVERSION             _IOW('f', 4, long)
 #define EXT3_IOC_GROUP_EXTEND          _IOW('f', 7, unsigned long)
 #define EXT3_IOC_GROUP_ADD             _IOW('f', 8,struct ext3_new_group_input)
-#define        EXT3_IOC_GETVERSION_OLD         _IOR('v', 1, long)
-#define        EXT3_IOC_SETVERSION_OLD         _IOW('v', 2, long)
+#define        EXT3_IOC_GETVERSION_OLD         FS_IOC_GETVERSION
+#define        EXT3_IOC_SETVERSION_OLD         FS_IOC_SETVERSION
 #ifdef CONFIG_JBD_DEBUG
 #define EXT3_IOC_WAIT_FOR_READONLY     _IOR('f', 99, long)
 #endif
 #define EXT3_IOC_GETRSVSZ              _IOR('f', 5, long)
 #define EXT3_IOC_SETRSVSZ              _IOW('f', 6, long)
 
+/*
+ * ioctl commands in 32 bit emulation
+ */
+#define EXT3_IOC32_GETVERSION          _IOR('f', 3, int)
+#define EXT3_IOC32_SETVERSION          _IOW('f', 4, int)
+#define EXT3_IOC32_GETRSVSZ            _IOR('f', 5, int)
+#define EXT3_IOC32_SETRSVSZ            _IOW('f', 6, int)
+#define EXT3_IOC32_GROUP_EXTEND                _IOW('f', 7, unsigned int)
+#ifdef CONFIG_JBD_DEBUG
+#define EXT3_IOC32_WAIT_FOR_READONLY   _IOR('f', 99, int)
+#endif
+
 /*
  *  Mount options
  */
index 1728142ec4b6ac8fbf5d660aaf378ff489b02fcb..b73a47582dbe47786e4d5e8ea290a02960b6956a 100644 (file)
@@ -217,6 +217,45 @@ extern int dir_notify_enable;
 #define FIBMAP    _IO(0x00,1)  /* bmap access */
 #define FIGETBSZ   _IO(0x00,2) /* get the block size used for bmap */
 
+#define        FS_IOC_GETFLAGS                 _IOR('f', 1, long)
+#define        FS_IOC_SETFLAGS                 _IOW('f', 2, long)
+#define        FS_IOC_GETVERSION               _IOR('v', 1, long)
+#define        FS_IOC_SETVERSION               _IOW('v', 2, long)
+#define FS_IOC32_GETFLAGS              _IOR('f', 1, int)
+#define FS_IOC32_SETFLAGS              _IOW('f', 2, int)
+#define FS_IOC32_GETVERSION            _IOR('v', 1, int)
+#define FS_IOC32_SETVERSION            _IOW('v', 2, int)
+
+/*
+ * Inode flags (FS_IOC_GETFLAGS / FS_IOC_SETFLAGS)
+ */
+#define        FS_SECRM_FL                     0x00000001 /* Secure deletion */
+#define        FS_UNRM_FL                      0x00000002 /* Undelete */
+#define        FS_COMPR_FL                     0x00000004 /* Compress file */
+#define FS_SYNC_FL                     0x00000008 /* Synchronous updates */
+#define FS_IMMUTABLE_FL                        0x00000010 /* Immutable file */
+#define FS_APPEND_FL                   0x00000020 /* writes to file may only append */
+#define FS_NODUMP_FL                   0x00000040 /* do not dump file */
+#define FS_NOATIME_FL                  0x00000080 /* do not update atime */
+/* Reserved for compression usage... */
+#define FS_DIRTY_FL                    0x00000100
+#define FS_COMPRBLK_FL                 0x00000200 /* One or more compressed clusters */
+#define FS_NOCOMP_FL                   0x00000400 /* Don't compress */
+#define FS_ECOMPR_FL                   0x00000800 /* Compression error */
+/* End compression flags --- maybe not all used */
+#define FS_BTREE_FL                    0x00001000 /* btree format dir */
+#define FS_INDEX_FL                    0x00001000 /* hash-indexed directory */
+#define FS_IMAGIC_FL                   0x00002000 /* AFS directory */
+#define FS_JOURNAL_DATA_FL             0x00004000 /* Reserved for ext3 */
+#define FS_NOTAIL_FL                   0x00008000 /* file tail should not be merged */
+#define FS_DIRSYNC_FL                  0x00010000 /* dirsync behaviour (directories only) */
+#define FS_TOPDIR_FL                   0x00020000 /* Top of directory hierarchies*/
+#define FS_RESERVED_FL                 0x80000000 /* reserved for ext2 lib */
+
+#define FS_FL_USER_VISIBLE             0x0003DFFF /* User visible flags */
+#define FS_FL_USER_MODIFIABLE          0x000380FF /* User modifiable flags */
+
+
 #define SYNC_FILE_RANGE_WAIT_BEFORE    1
 #define SYNC_FILE_RANGE_WRITE          2
 #define SYNC_FILE_RANGE_WAIT_AFTER     4
index 28493ffaafe7b26e1dfec49fab09333658702d3e..0100d6d1d84ca67f7b50c000c4629f0fd511b2f2 100644 (file)
@@ -807,21 +807,19 @@ struct stat_data_v1 {
 #define set_sd_v1_first_direct_byte(sdp,v) \
                                 ((sdp)->sd_first_direct_byte = cpu_to_le32(v))
 
-#include <linux/ext2_fs.h>
-
 /* inode flags stored in sd_attrs (nee sd_reserved) */
 
 /* we want common flags to have the same values as in ext2,
    so chattr(1) will work without problems */
-#define REISERFS_IMMUTABLE_FL EXT2_IMMUTABLE_FL
-#define REISERFS_APPEND_FL    EXT2_APPEND_FL
-#define REISERFS_SYNC_FL      EXT2_SYNC_FL
-#define REISERFS_NOATIME_FL   EXT2_NOATIME_FL
-#define REISERFS_NODUMP_FL    EXT2_NODUMP_FL
-#define REISERFS_SECRM_FL     EXT2_SECRM_FL
-#define REISERFS_UNRM_FL      EXT2_UNRM_FL
-#define REISERFS_COMPR_FL     EXT2_COMPR_FL
-#define REISERFS_NOTAIL_FL    EXT2_NOTAIL_FL
+#define REISERFS_IMMUTABLE_FL FS_IMMUTABLE_FL
+#define REISERFS_APPEND_FL    FS_APPEND_FL
+#define REISERFS_SYNC_FL      FS_SYNC_FL
+#define REISERFS_NOATIME_FL   FS_NOATIME_FL
+#define REISERFS_NODUMP_FL    FS_NODUMP_FL
+#define REISERFS_SECRM_FL     FS_SECRM_FL
+#define REISERFS_UNRM_FL      FS_UNRM_FL
+#define REISERFS_COMPR_FL     FS_COMPR_FL
+#define REISERFS_NOTAIL_FL    FS_NOTAIL_FL
 
 /* persistent flags that file inherits from the parent directory */
 #define REISERFS_INHERIT_MASK ( REISERFS_IMMUTABLE_FL |        \
@@ -2168,10 +2166,10 @@ int reiserfs_ioctl(struct inode *inode, struct file *filp,
 #define REISERFS_IOC_UNPACK            _IOW(0xCD,1,long)
 /* define following flags to be the same as in ext2, so that chattr(1),
    lsattr(1) will work with us. */
-#define REISERFS_IOC_GETFLAGS          EXT2_IOC_GETFLAGS
-#define REISERFS_IOC_SETFLAGS          EXT2_IOC_SETFLAGS
-#define REISERFS_IOC_GETVERSION                EXT2_IOC_GETVERSION
-#define REISERFS_IOC_SETVERSION                EXT2_IOC_SETVERSION
+#define REISERFS_IOC_GETFLAGS          FS_IOC_GETFLAGS
+#define REISERFS_IOC_SETFLAGS          FS_IOC_SETFLAGS
+#define REISERFS_IOC_GETVERSION                FS_IOC_GETVERSION
+#define REISERFS_IOC_SETVERSION                FS_IOC_SETVERSION
 
 /* Locking primitives */
 /* Right now we are still falling back to (un)lock_kernel, but eventually that