Add a test that exercises DAX's new MAP_SYNC flag.
This test creates a file and writes to it via an mmap(), but never syncs
via fsync/msync. This process is tracked via dm-log-writes, then replayed.
If MAP_SYNC is working the dm-log-writes replay will show the test file
with 1MiB of on-media blo
On 10/20/2017 12:37 AM, Elena Reshetova wrote:
> atomic_t variables are currently used to implement reference
> counters with the following properties:
> - counter is initialized to 1 using atomic_set()
> - a resource is freed upon counter reaching zero
> - once counter reaches zero, its further
