Dylan Reid d086568932 cros_async: Fix reference to mem being dropped early ... The Rc to BackingMemory that is passed in to memory operations was being dropped before it is safe, The kernel can still access it until the op is completed, so keep the reference in the pending_ops map. Add tests so that this safety guarantees made by the executor are exercise in unit tests. Thanks to nkgold for finding the issue via code inspection. BUG=none TEST=cargo test dont_drop_backing_mem, cargo run with uring block and run fio tests. Change-Id: I8e4efedbbafefcbd57d7d7c340dc91a9b159b38c Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2345377 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Dylan Reid <dgreid@chromium.org>		2020-08-13 00:04:56 +00:00
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src	cros_async: Fix reference to mem being dropped early	2020-08-13 00:04:56 +00:00
Cargo.toml	cros_async: Fix reference to mem being dropped early	2020-08-13 00:04:56 +00:00