[linux-azure] Don't wait in hvnd_query_gid after interface is already bound to ND

Bug #1812428 reported by Joseph Salisbury on 2019-01-18
12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-azure (Ubuntu)
Undecided
Unassigned

Bug Description

The user mode may call hvnd_query_gid multiple times, and from multiple user contexts at the same time. If it's already bound, return GID and do not wait.

This patch will not go upstream, because it's for Azure ND Infiniband. Due to this, the patch should be applied as SAUCE.

The patch is needed in linux-azure for 16.04 and 18.04. It is also being requested in the 4.18 azure based kernel.

The patch is attached to this email. Do you want and SRU request sent to the mailing list as well or is just attaching it here suffice?

Joseph Salisbury (jsalisbury) wrote :
summary: - Don't wait in hvnd_query_gid after interface is already bound to ND
+ [linux-azure] Don't wait in hvnd_query_gid after interface is already
+ bound to ND
tags: added: patch
tags: added: kernel-hyper-v
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