• David Sterba's avatar
    btrfs: allocate root item at snapshot ioctl time · b0c0ea63
    David Sterba authored
    The actual snapshot creation is delayed until transaction commit. If we
    cannot get enough memory for the root item there, we have to fail the
    whole transaction commit which is bad. So we'll allocate the memory at
    the ioctl call and pass it along with the pending_snapshot struct. The
    potential ENOMEM will be returned to the caller of snapshot ioctl.
    Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>