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| author | Andi Kleen <ak@suse.de> | 2008-04-29 22:03:54 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-04-29 22:03:54 -0400 |
| commit | 5cdd7b2d7716a7ed7d6dc7588e2d015f04d46640 (patch) | |
| tree | c2146662517bbd22377a54d1487e202d86dde6db | |
| parent | 161e7b7c1d24112d188df9a7b30d468a8d135b96 (diff) | |
| download | op-kernel-dev-5cdd7b2d7716a7ed7d6dc7588e2d015f04d46640.zip op-kernel-dev-5cdd7b2d7716a7ed7d6dc7588e2d015f04d46640.tar.gz | |
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.c | 2 | ||||
| -rw-r--r-- | fs/ext4/file.c | 2 | ||||
| -rw-r--r-- | fs/ext4/ioctl.c | 12 | ||||
| -rw-r--r-- | include/linux/ext4_fs.h | 3 |
4 files changed, 6 insertions, 13 deletions
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index 2c23bad..88c97f7 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 ac35ec5..20507a2 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 25b13ed..ce937fe 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 105337c..33bc885 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 */ |
