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| author | Jason Wang <jasowang@redhat.com> | 2025-11-20 10:29:50 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-11-26 14:44:58 -0800 |
| commit | 779bcdd4b9ae6566f309043c53c946e8ac0015fd (patch) | |
| tree | 0bcafa42fb0c4efad98e1289630b6bad741256da /tools/lib/python/abi/abi_regex.py | |
| parent | 0ebc27a4c67d44e5ce88d21cdad8201862b78837 (diff) | |
vhost: rewind next_avail_head while discarding descriptors
When discarding descriptors with IN_ORDER, we should rewind
next_avail_head otherwise it would run out of sync with
last_avail_idx. This would cause driver to report
"id X is not a head".
Fixing this by returning the number of descriptors that is used for
each buffer via vhost_get_vq_desc_n() so caller can use the value
while discarding descriptors.
Fixes: 67a873df0c41 ("vhost: basic in order support")
Cc: stable@vger.kernel.org
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://patch.msgid.link/20251120022950.10117-1-jasowang@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/lib/python/abi/abi_regex.py')
0 files changed, 0 insertions, 0 deletions