ANDROID: qcom: Add flush_delayed_fput to ABI

When a kernel thread calls dma_buf_put() to release the last reference
to a dma-buf, fput_many() defers calling the release callback to a
workqueue. This means that if the same kernel thread later calls
dma_heap_buffer_alloc(), it has no guarantee that the memory from the
prior free is available, leading to random failures. As a short-term
workaround, call flush_delayed_fput() to ensure the free completes
synchronously.

Leaf changes summary: 1 artifact changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 1 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

1 Added function:

  [A] 'function void flush_delayed_fput()'

Bug: 210598057
Change-Id: Id936aa0bcd410b23b12f4b922b676aa61a358b4c
Signed-off-by: Patrick Daly <quic_pdaly@quicinc.com>
diff --git a/android/abi_gki_aarch64_qcom b/android/abi_gki_aarch64_qcom
index 7493e08..df96cca 100644
--- a/android/abi_gki_aarch64_qcom
+++ b/android/abi_gki_aarch64_qcom
@@ -632,6 +632,7 @@
   flow_rule_match_ports
   flow_rule_match_vlan
   flush_dcache_page
+  flush_delayed_fput
   flush_delayed_work
   flush_work
   flush_workqueue