[PATCH v3 0/2] vhost-vdpa mapping error path fixes

From: Si-Wei Liu
Date: Sat Oct 03 2020 - 01:43:35 EST


Commit 4c8cf31885f6 ("vhost: introduce vDPA-based backend")
has following issues in the failure path of IOTLB update:

1) vhost_vdpa_map() does not clean up dangling iotlb entry
upon mapping failure

2) vhost_vdpa_process_iotlb_update() has leakage of pinned
pages in case of vhost_vdpa_map() failure

This patchset attempts to address the above issues.

Changes in v3:
- Factor out changes in vhost_vdpa_map() and the fix for
page pinning leak to separate patches (Jason)

---
Si-Wei Liu (2):
vhost-vdpa: fix vhost_vdpa_map() on error condition
vhost-vdpa: fix page pinning leakage in error path

drivers/vhost/vdpa.c | 122 +++++++++++++++++++++++++++++++--------------------
1 file changed, 74 insertions(+), 48 deletions(-)

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1.8.3.1