This is a note to let you know that I've just added the patch titled
xen/scsiback: correct frontend counting
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
xen-scsiback-correct-frontend-counting.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f285aa8db7cc4432c1a03f8b55ff34fe96317c11 Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@xxxxxxxx>
Date: Mon, 8 Feb 2016 15:30:18 +0100
Subject: xen/scsiback: correct frontend counting
From: Juergen Gross <jgross@xxxxxxxx>
commit f285aa8db7cc4432c1a03f8b55ff34fe96317c11 upstream.
When adding a new frontend to xen-scsiback don't decrement the number
of active frontends in case of no error. Doing so results in a failure
when trying to remove the xen-pvscsi nexus even if no domain is using
it.
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/xen/xen-scsiback.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -939,12 +939,12 @@ out:
spin_unlock_irqrestore(&info->v2p_lock, flags);
out_free:
- mutex_lock(&tpg->tv_tpg_mutex);
- tpg->tv_tpg_fe_count--;
- mutex_unlock(&tpg->tv_tpg_mutex);
-
- if (err)
+ if (err) {
+ mutex_lock(&tpg->tv_tpg_mutex);
+ tpg->tv_tpg_fe_count--;
+ mutex_unlock(&tpg->tv_tpg_mutex);
kfree(new);
+ }
return err;
}
Patches currently in stable-queue which might be from jgross@xxxxxxxx are
queue-4.4/xen-scsiback-correct-frontend-counting.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html