On Tue, Feb 24, 2009 at 12:05:50AM -0500, Theodore Ts'o wrote:
> diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
> index 22dd29f..0d59f5f 100644
> --- a/fs/ext4/ioctl.c
> +++ b/fs/ext4/ioctl.c
> @@ -262,6 +262,19 @@ setversion_out:
> return err;
> }
>
> + case EXT4_IOC_ALLOC_DA_BLKS:
> + {
> + int err;
> + if (!is_owner_or_cap(inode))
> + return -EACCES;
> +
> + err = mnt_want_write(filp->f_path.mnt);
> + if (err)
> + return err;
> + err = ext4_alloc_da_blocks(inode);
> + return err;
> + }
> +
I guess we need a matching
mnt_drop_write();
> default:
> return -ENOTTY;
> }
> --
> 1.5.6.3
>
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