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authorAndi Kleen <ak@suse.de>2008-04-30 06:03:54 +0400
committerTheodore Ts'o <tytso@mit.edu>2008-04-30 06:03:54 +0400
commit5cdd7b2d7716a7ed7d6dc7588e2d015f04d46640 (patch)
treec2146662517bbd22377a54d1487e202d86dde6db
parent161e7b7c1d24112d188df9a7b30d468a8d135b96 (diff)
downloadlinux-5cdd7b2d7716a7ed7d6dc7588e2d015f04d46640.tar.xz
Convert ext4 to use unlocked_ioctl
I checked ext4_ioctl and it looked largely safe to not be used without BKL. So convert it over to unlocked_ioctl. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
-rw-r--r--fs/ext4/dir.c2
-rw-r--r--fs/ext4/file.c2
-rw-r--r--fs/ext4/ioctl.c12
-rw-r--r--include/linux/ext4_fs.h3
4 files changed, 6 insertions, 13 deletions
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 2c23bade9aa6..88c97f7312be 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -42,7 +42,7 @@ const struct file_operations ext4_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = ext4_readdir, /* we take BKL. needed?*/
- .ioctl = ext4_ioctl, /* BKL held */
+ .unlocked_ioctl = ext4_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = ext4_compat_ioctl,
#endif
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index ac35ec58db55..20507a24506a 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -129,7 +129,7 @@ const struct file_operations ext4_file_operations = {
.write = do_sync_write,
.aio_read = generic_file_aio_read,
.aio_write = ext4_file_write,
- .ioctl = ext4_ioctl,
+ .unlocked_ioctl = ext4_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = ext4_compat_ioctl,
#endif
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 25b13ede8086..ce937fe432a0 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -18,9 +18,9 @@
#include <linux/mount.h>
#include <asm/uaccess.h>
-int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
- unsigned long arg)
+long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
+ struct inode *inode = filp->f_dentry->d_inode;
struct ext4_inode_info *ei = EXT4_I(inode);
unsigned int flags;
unsigned short rsv_window_size;
@@ -277,9 +277,6 @@ setversion_out:
#ifdef CONFIG_COMPAT
long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
- struct inode *inode = file->f_path.dentry->d_inode;
- int ret;
-
/* These are just misnamed, they actually get/put from/to user an int */
switch (cmd) {
case EXT4_IOC32_GETFLAGS:
@@ -319,9 +316,6 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
default:
return -ENOIOCTLCMD;
}
- lock_kernel();
- ret = ext4_ioctl(inode, file, cmd, (unsigned long) compat_ptr(arg));
- unlock_kernel();
- return ret;
+ return ext4_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
}
#endif
diff --git a/include/linux/ext4_fs.h b/include/linux/ext4_fs.h
index 105337ca9ed0..33bc88568c54 100644
--- a/include/linux/ext4_fs.h
+++ b/include/linux/ext4_fs.h
@@ -1050,8 +1050,7 @@ extern int ext4_block_truncate_page(handle_t *handle, struct page *page,
struct address_space *mapping, loff_t from);
/* ioctl.c */
-extern int ext4_ioctl (struct inode *, struct file *, unsigned int,
- unsigned long);
+extern long ext4_ioctl(struct file *, unsigned int, unsigned long);
extern long ext4_compat_ioctl (struct file *, unsigned int, unsigned long);
/* migrate.c */