On Tue, 2016-05-17 at 09:36 -0400, Jeff Mahoney wrote:
> From: Josef Bacik <jbacik@xxxxxx>
>
> [ Upstream commit c79b4713304f812d3d6c95826fc3e5fc2c0b0c14 ]
>
> The fd we pass in may not be on a btrfs file system, so don't try to do
> BTRFS_I() on it. Thanks,
>
> Signed-off-by: Josef Bacik <jbacik@xxxxxx>
> Reviewed-by: David Sterba <dsterba@xxxxxxxx>
> Signed-off-by: David Sterba <dsterba@xxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx # 3.14+
Belatedly queued up for 3.16, thanks.
Ben.
> ---
> fs/btrfs/ioctl.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
> index 053e677..21423dd 100644
> --- a/fs/btrfs/ioctl.c
> +++ b/fs/btrfs/ioctl.c
> @@ -1654,7 +1654,7 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
>
> src_inode = file_inode(src.file);
> if (src_inode->i_sb != file_inode(file)->i_sb) {
> - btrfs_info(BTRFS_I(src_inode)->root->fs_info,
> + btrfs_info(BTRFS_I(file_inode(file))->root->fs_info,
> "Snapshot src from another FS");
> ret = -EXDEV;
> } else if (!inode_owner_or_capable(src_inode)) {
>
>
> --
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--
Ben Hutchings
compatible: Gracefully accepts erroneous data from any source
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