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Subject[PATCH 14/18] [PATCH] BLOCK: Move the Ext3 device ioctl compat stuff to the Ext3 driver [try #4]
Date
From: David Howells <dhowells@redhat.com>

Move the Ext3 device ioctl compat stuff from fs/compat_ioctl.c to the Ext3
driver so that the Ext3 header file doesn't need to be included.

Signed-Off-By: David Howells <dhowells@redhat.com>
---
fs/compat_ioctl.c | 27 -----------------------
fs/ext3/dir.c | 3 +++
fs/ext3/file.c | 3 +++
fs/ext3/ioctl.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++-
include/linux/ext3_fs.h | 6 +++++
5 files changed, 66 insertions(+), 28 deletions(-)
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 3594668..e5eb0f1 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -45,8 +45,6 @@ #include <linux/auto_fs4.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
-#include <linux/ext3_jbd.h>
-#include <linux/ext3_fs.h>
#include <linux/videodev.h>
#include <linux/netdevice.h>
#include <linux/raw.h>
@@ -158,22 +156,6 @@ static int rw_long(unsigned int fd, unsi
return err;
}

-static int do_ext3_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
- /* These are just misnamed, they actually get/put from/to user an int */
- switch (cmd) {
- case EXT3_IOC32_GETVERSION: cmd = EXT3_IOC_GETVERSION; break;
- case EXT3_IOC32_SETVERSION: cmd = EXT3_IOC_SETVERSION; break;
- case EXT3_IOC32_GETRSVSZ: cmd = EXT3_IOC_GETRSVSZ; break;
- case EXT3_IOC32_SETRSVSZ: cmd = EXT3_IOC_SETRSVSZ; break;
- case EXT3_IOC32_GROUP_EXTEND: cmd = EXT3_IOC_GROUP_EXTEND; break;
-#ifdef CONFIG_JBD_DEBUG
- case EXT3_IOC32_WAIT_FOR_READONLY: cmd = EXT3_IOC_WAIT_FOR_READONLY; break;
-#endif
- }
- return sys_ioctl(fd, cmd, (unsigned long)compat_ptr(arg));
-}
-
struct compat_video_event {
int32_t type;
compat_time_t timestamp;
@@ -2712,15 +2694,6 @@ HANDLE_IOCTL(PIO_UNIMAP, do_unimap_ioctl
HANDLE_IOCTL(GIO_UNIMAP, do_unimap_ioctl)
HANDLE_IOCTL(KDFONTOP, do_kdfontop_ioctl)
#endif
-HANDLE_IOCTL(EXT3_IOC32_GETVERSION, do_ext3_ioctl)
-HANDLE_IOCTL(EXT3_IOC32_SETVERSION, do_ext3_ioctl)
-HANDLE_IOCTL(EXT3_IOC32_GETRSVSZ, do_ext3_ioctl)
-HANDLE_IOCTL(EXT3_IOC32_SETRSVSZ, do_ext3_ioctl)
-HANDLE_IOCTL(EXT3_IOC32_GROUP_EXTEND, do_ext3_ioctl)
-COMPATIBLE_IOCTL(EXT3_IOC_GROUP_ADD)
-#ifdef CONFIG_JBD_DEBUG
-HANDLE_IOCTL(EXT3_IOC32_WAIT_FOR_READONLY, do_ext3_ioctl)
-#endif
/* One SMB ioctl needs translations. */
#define SMB_IOC_GETMOUNTUID_32 _IOR('u', 1, compat_uid_t)
HANDLE_IOCTL(SMB_IOC_GETMOUNTUID_32, do_smb_getmountuid)
diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c
index fbb0d4e..7ba8917 100644
--- a/fs/ext3/dir.c
+++ b/fs/ext3/dir.c
@@ -44,6 +44,9 @@ const struct file_operations ext3_dir_op
.read = generic_read_dir,
.readdir = ext3_readdir, /* we take BKL. needed?*/
.ioctl = ext3_ioctl, /* BKL held */
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = ext3_compat_ioctl,
+#endif
.fsync = ext3_sync_file, /* BKL held */
#ifdef CONFIG_EXT3_INDEX
.release = ext3_release_dir,
diff --git a/fs/ext3/file.c b/fs/ext3/file.c
index 1efefb6..40320da 100644
--- a/fs/ext3/file.c
+++ b/fs/ext3/file.c
@@ -114,6 +114,9 @@ const struct file_operations ext3_file_o
.readv = generic_file_readv,
.writev = generic_file_writev,
.ioctl = ext3_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = ext3_compat_ioctl,
+#endif
.mmap = generic_file_mmap,
.open = generic_file_open,
.release = ext3_release_file,
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
index 3a6b012..12daa68 100644
--- a/fs/ext3/ioctl.c
+++ b/fs/ext3/ioctl.c
@@ -13,9 +13,10 @@ #include <linux/capability.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
#include <linux/time.h>
+#include <linux/compat.h>
+#include <linux/smp_lock.h>
#include <asm/uaccess.h>

-
int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
unsigned long arg)
{
@@ -252,3 +253,55 @@ #endif
return -ENOTTY;
}
}
+
+#ifdef CONFIG_COMPAT
+long ext3_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ struct inode *inode = file->f_dentry->d_inode;
+ int ret;
+
+ /* These are just misnamed, they actually get/put from/to user an int */
+ switch (cmd) {
+ case EXT3_IOC32_GETFLAGS:
+ cmd = EXT3_IOC_GETFLAGS;
+ break;
+ case EXT3_IOC32_SETFLAGS:
+ cmd = EXT3_IOC_SETFLAGS;
+ break;
+ case EXT3_IOC32_GETVERSION:
+ cmd = EXT3_IOC_GETVERSION;
+ break;
+ case EXT3_IOC32_SETVERSION:
+ cmd = EXT3_IOC_SETVERSION;
+ break;
+ case EXT3_IOC32_GROUP_EXTEND:
+ cmd = EXT3_IOC_GROUP_EXTEND;
+ break;
+ case EXT3_IOC32_GETVERSION_OLD:
+ cmd = EXT3_IOC_GETVERSION_OLD;
+ break;
+ case EXT3_IOC32_SETVERSION_OLD:
+ cmd = EXT3_IOC_SETVERSION_OLD;
+ break;
+#ifdef CONFIG_JBD_DEBUG
+ case EXT3_IOC32_WAIT_FOR_READONLY:
+ cmd = EXT3_IOC_WAIT_FOR_READONLY;
+ break;
+#endif
+ case EXT3_IOC32_GETRSVSZ:
+ cmd = EXT3_IOC_GETRSVSZ;
+ break;
+ case EXT3_IOC32_SETRSVSZ:
+ cmd = EXT3_IOC_SETRSVSZ;
+ break;
+ case EXT3_IOC_GROUP_ADD:
+ break;
+ default:
+ return -ENOIOCTLCMD;
+ }
+ lock_kernel();
+ ret = ext3_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
+ unlock_kernel();
+ return ret;
+}
+#endif
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 90cfba2..690c730 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -237,6 +237,8 @@ #define EXT3_IOC_SETRSVSZ _IOW('f', 6,
/*
* ioctl commands in 32 bit emulation
*/
+#define EXT3_IOC32_GETFLAGS FS_IOC32_GETFLAGS
+#define EXT3_IOC32_SETFLAGS FS_IOC32_SETFLAGS
#define EXT3_IOC32_GETVERSION _IOR('f', 3, int)
#define EXT3_IOC32_SETVERSION _IOW('f', 4, int)
#define EXT3_IOC32_GETRSVSZ _IOR('f', 5, int)
@@ -245,6 +247,9 @@ #define EXT3_IOC32_GROUP_EXTEND _IOW('f
#ifdef CONFIG_JBD_DEBUG
#define EXT3_IOC32_WAIT_FOR_READONLY _IOR('f', 99, int)
#endif
+#define EXT3_IOC32_GETVERSION_OLD FS_IOC32_GETVERSION
+#define EXT3_IOC32_SETVERSION_OLD FS_IOC32_SETVERSION
+

/*
* Mount options
@@ -828,6 +833,7 @@ extern void ext3_set_aops(struct inode *
/* ioctl.c */
extern int ext3_ioctl (struct inode *, struct file *, unsigned int,
unsigned long);
+extern long ext3_compat_ioctl (struct file *, unsigned int, unsigned long);

/* namei.c */
extern int ext3_orphan_add(handle_t *, struct inode *);
-
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