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Message-Id: <20060825144944.30722.91487.stgit@warthog.cambridge.redhat.com>
Date: Fri, 25 Aug 2006 15:49:44 +0100
From: David Howells <dhowells@...hat.com>
To: axboe@...nel.dk
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
dhowells@...hat.com
Subject: [PATCH 13/18] [PATCH] BLOCK: Move the Ext2 device ioctl compat stuff to the Ext2 driver [try #3]
From: David Howells <dhowells@...hat.com>
Move the Ext2 device ioctl compat stuff from fs/compat_ioctl.c to the Ext2
driver so that the Ext2 header file doesn't need to be included.
Signed-Off-By: David Howells <dhowells@...hat.com>
---
fs/compat_ioctl.c | 17 -----------------
fs/ext2/dir.c | 3 +++
fs/ext2/ext2.h | 1 +
fs/ext2/file.c | 6 ++++++
fs/ext2/ioctl.c | 32 ++++++++++++++++++++++++++++++++
5 files changed, 42 insertions(+), 17 deletions(-)
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 5e84342..24d5538 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -45,7 +45,6 @@ #include <linux/auto_fs4.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
-#include <linux/ext2_fs.h>
#include <linux/ext3_jbd.h>
#include <linux/ext3_fs.h>
#include <linux/videodev.h>
@@ -159,18 +158,6 @@ static int rw_long(unsigned int fd, unsi
return err;
}
-static int do_ext2_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 EXT2_IOC32_GETFLAGS: cmd = EXT2_IOC_GETFLAGS; break;
- case EXT2_IOC32_SETFLAGS: cmd = EXT2_IOC_SETFLAGS; break;
- case EXT2_IOC32_GETVERSION: cmd = EXT2_IOC_GETVERSION; break;
- case EXT2_IOC32_SETVERSION: cmd = EXT2_IOC_SETVERSION; break;
- }
- return sys_ioctl(fd, cmd, (unsigned long)compat_ptr(arg));
-}
-
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 */
@@ -2727,10 +2714,6 @@ HANDLE_IOCTL(PIO_UNIMAP, do_unimap_ioctl
HANDLE_IOCTL(GIO_UNIMAP, do_unimap_ioctl)
HANDLE_IOCTL(KDFONTOP, do_kdfontop_ioctl)
#endif
-HANDLE_IOCTL(EXT2_IOC32_GETFLAGS, do_ext2_ioctl)
-HANDLE_IOCTL(EXT2_IOC32_SETFLAGS, do_ext2_ioctl)
-HANDLE_IOCTL(EXT2_IOC32_GETVERSION, do_ext2_ioctl)
-HANDLE_IOCTL(EXT2_IOC32_SETVERSION, do_ext2_ioctl)
HANDLE_IOCTL(EXT3_IOC32_GETVERSION, do_ext3_ioctl)
HANDLE_IOCTL(EXT3_IOC32_SETVERSION, do_ext3_ioctl)
HANDLE_IOCTL(EXT3_IOC32_GETRSVSZ, do_ext3_ioctl)
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index 92ea826..3e7a84a 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -661,5 +661,8 @@ const struct file_operations ext2_dir_op
.read = generic_read_dir,
.readdir = ext2_readdir,
.ioctl = ext2_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = ext2_compat_ioctl,
+#endif
.fsync = ext2_sync_file,
};
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index e65a019..c19ac15 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -137,6 +137,7 @@ extern void ext2_set_inode_flags(struct
/* ioctl.c */
extern int ext2_ioctl (struct inode *, struct file *, unsigned int,
unsigned long);
+extern long ext2_compat_ioctl(struct file *, unsigned int, unsigned long);
/* namei.c */
struct dentry *ext2_get_parent(struct dentry *child);
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 23e2c7c..e8bbed9 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -46,6 +46,9 @@ const struct file_operations ext2_file_o
.aio_read = generic_file_aio_read,
.aio_write = generic_file_aio_write,
.ioctl = ext2_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = ext2_compat_ioctl,
+#endif
.mmap = generic_file_mmap,
.open = generic_file_open,
.release = ext2_release_file,
@@ -63,6 +66,9 @@ const struct file_operations ext2_xip_fi
.read = xip_file_read,
.write = xip_file_write,
.ioctl = ext2_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = ext2_compat_ioctl,
+#endif
.mmap = xip_file_mmap,
.open = generic_file_open,
.release = ext2_release_file,
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index 3ca9afd..1dfba77 100644
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -11,6 +11,8 @@ #include "ext2.h"
#include <linux/capability.h>
#include <linux/time.h>
#include <linux/sched.h>
+#include <linux/compat.h>
+#include <linux/smp_lock.h>
#include <asm/current.h>
#include <asm/uaccess.h>
@@ -80,3 +82,33 @@ int ext2_ioctl (struct inode * inode, st
return -ENOTTY;
}
}
+
+#ifdef CONFIG_COMPAT
+long ext2_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 EXT2_IOC32_GETFLAGS:
+ cmd = EXT2_IOC_GETFLAGS;
+ break;
+ case EXT2_IOC32_SETFLAGS:
+ cmd = EXT2_IOC_SETFLAGS;
+ break;
+ case EXT2_IOC32_GETVERSION:
+ cmd = EXT2_IOC_GETVERSION;
+ break;
+ case EXT2_IOC32_SETVERSION:
+ cmd = EXT2_IOC_SETVERSION;
+ break;
+ default:
+ return -ENOIOCTLCMD;
+ }
+ lock_kernel();
+ ret = ext2_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
+ unlock_kernel();
+ return ret;
+}
+#endif
-
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