On Tue, Oct 29, 2019 at 03:08:26PM +1100, Stephen Rothwell wrote:
> Hi all,
>
> Today's linux-next merge of the scsi tree got a conflict in:
>
> drivers/scsi/scsi_sysfs.c
>
> between commit:
>
> 81db81f82993 ("drivers/scsi: Replace rcu_swap_protected() with rcu_replace()")
>
> from the rcu tree and commit:
>
> d188b0675b21 ("scsi: core: Add sysfs attributes for VPD pages 0h and 89h")
>
> from the scsi tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging. You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
Looks good to me, thank you very much!
Thanx, Paul
> --
> Cheers,
> Stephen Rothwell
>
> diff --cc drivers/scsi/scsi_sysfs.c
> index cc51f4756077,0fa2ed343c7f..000000000000
> --- a/drivers/scsi/scsi_sysfs.c
> +++ b/drivers/scsi/scsi_sysfs.c
> @@@ -466,12 -467,18 +467,18 @@@ static void scsi_device_dev_release_use
> sdev->request_queue = NULL;
>
> mutex_lock(&sdev->inquiry_mutex);
> - rcu_swap_protected(sdev->vpd_pg0, vpd_pg0,
> - lockdep_is_held(&sdev->inquiry_mutex));
> - rcu_swap_protected(sdev->vpd_pg80, vpd_pg80,
> - lockdep_is_held(&sdev->inquiry_mutex));
> - rcu_swap_protected(sdev->vpd_pg83, vpd_pg83,
> - lockdep_is_held(&sdev->inquiry_mutex));
> - rcu_swap_protected(sdev->vpd_pg89, vpd_pg89,
> - lockdep_is_held(&sdev->inquiry_mutex));
> ++ vpd_pg0 = rcu_replace_pointer(sdev->vpd_pg0, vpd_pg0,
> ++ lockdep_is_held(&sdev->inquiry_mutex));
> + vpd_pg80 = rcu_replace_pointer(sdev->vpd_pg80, vpd_pg80,
> + lockdep_is_held(&sdev->inquiry_mutex));
> + vpd_pg83 = rcu_replace_pointer(sdev->vpd_pg83, vpd_pg83,
> + lockdep_is_held(&sdev->inquiry_mutex));
> ++ vpd_pg89 = rcu_replace_pointer(sdev->vpd_pg89, vpd_pg89,
> ++ lockdep_is_held(&sdev->inquiry_mutex));
> mutex_unlock(&sdev->inquiry_mutex);
>
> + if (vpd_pg0)
> + kfree_rcu(vpd_pg0, rcu);
> if (vpd_pg83)
> kfree_rcu(vpd_pg83, rcu);
> if (vpd_pg80)
