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path: root/fs/btrfs/ioctl.c
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Diffstat (limited to 'fs/btrfs/ioctl.c')
-rw-r--r--fs/btrfs/ioctl.c29
1 files changed, 14 insertions, 15 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0b06a5ca8afc..03bb62a9ee24 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -206,7 +206,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
}
}
- ret = mnt_want_write(file->f_path.mnt);
+ ret = mnt_want_write_file(file);
if (ret)
goto out_unlock;
@@ -271,7 +271,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
inode->i_flags = i_oldflags;
}
- mnt_drop_write(file->f_path.mnt);
+ mnt_drop_write_file(file);
out_unlock:
mutex_unlock(&inode->i_mutex);
return ret;
@@ -286,14 +286,13 @@ static int btrfs_ioctl_getversion(struct file *file, int __user *arg)
static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg)
{
- struct btrfs_root *root = fdentry(file)->d_sb->s_fs_info;
- struct btrfs_fs_info *fs_info = root->fs_info;
+ struct btrfs_fs_info *fs_info = btrfs_sb(fdentry(file)->d_sb);
struct btrfs_device *device;
struct request_queue *q;
struct fstrim_range range;
u64 minlen = ULLONG_MAX;
u64 num_devices = 0;
- u64 total_bytes = btrfs_super_total_bytes(root->fs_info->super_copy);
+ u64 total_bytes = btrfs_super_total_bytes(fs_info->super_copy);
int ret;
if (!capable(CAP_SYS_ADMIN))
@@ -322,7 +321,7 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg)
range.len = min(range.len, total_bytes - range.start);
range.minlen = max(range.minlen, minlen);
- ret = btrfs_trim_fs(root, &range);
+ ret = btrfs_trim_fs(fs_info->tree_root, &range);
if (ret < 0)
return ret;
@@ -1872,7 +1871,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
goto out;
}
- err = mnt_want_write(file->f_path.mnt);
+ err = mnt_want_write_file(file);
if (err)
goto out;
@@ -1988,7 +1987,7 @@ out_dput:
dput(dentry);
out_unlock_dir:
mutex_unlock(&dir->i_mutex);
- mnt_drop_write(file->f_path.mnt);
+ mnt_drop_write_file(file);
out:
kfree(vol_args);
return err;
@@ -2004,7 +2003,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
if (btrfs_root_readonly(root))
return -EROFS;
- ret = mnt_want_write(file->f_path.mnt);
+ ret = mnt_want_write_file(file);
if (ret)
return ret;
@@ -2057,7 +2056,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
ret = -EINVAL;
}
out:
- mnt_drop_write(file->f_path.mnt);
+ mnt_drop_write_file(file);
return ret;
}
@@ -2234,7 +2233,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
if (btrfs_root_readonly(root))
return -EROFS;
- ret = mnt_want_write(file->f_path.mnt);
+ ret = mnt_want_write_file(file);
if (ret)
return ret;
@@ -2550,7 +2549,7 @@ out_unlock:
out_fput:
fput(src_file);
out_drop_write:
- mnt_drop_write(file->f_path.mnt);
+ mnt_drop_write_file(file);
return ret;
}
@@ -2589,7 +2588,7 @@ static long btrfs_ioctl_trans_start(struct file *file)
if (btrfs_root_readonly(root))
goto out;
- ret = mnt_want_write(file->f_path.mnt);
+ ret = mnt_want_write_file(file);
if (ret)
goto out;
@@ -2605,7 +2604,7 @@ static long btrfs_ioctl_trans_start(struct file *file)
out_drop:
atomic_dec(&root->fs_info->open_ioctl_trans);
- mnt_drop_write(file->f_path.mnt);
+ mnt_drop_write_file(file);
out:
return ret;
}
@@ -2840,7 +2839,7 @@ long btrfs_ioctl_trans_end(struct file *file)
atomic_dec(&root->fs_info->open_ioctl_trans);
- mnt_drop_write(file->f_path.mnt);
+ mnt_drop_write_file(file);
return 0;
}