[Drbd-dev] [PATCH v3] drbd: fix a race condition in update_sync_bits() and receive_bitmap()

[Joel Colledge]

This was included in drbd-9.0 with:
https://github.com/LINBIT/drbd/commit/a9a54e48f5d6eb0b06d5832246ff7da2305fe5e1

And merged forward into master with:
https://github.com/LINBIT/drbd/commit/6cb88bf2af4a5628d09276e92f905405d01e0270