[PATCH AUTOSEL 4.19 46/68] NFSv4: Fix a NFSv4 state manager deadlock

From: Trond Myklebust [ Upstream commit aeabb3c96186a0f944fc2b1f25c84d5eb3a93fa9 ] Fix a deadlock whereby the NFSv4 state manager can get stuck in the delegation return code, waiting for a layout return to complete in another thread. If the server reboots before that other thread completes,

[PATCH AUTOSEL 4.19 46/68] NFSv4: Fix a NFSv4 state manager deadlock

From: Trond Myklebust [ Upstream commit aeabb3c96186a0f944fc2b1f25c84d5eb3a93fa9 ] Fix a deadlock whereby the NFSv4 state manager can get stuck in the delegation return code, waiting for a layout return to complete in another thread. If the server reboots before that other thread completes,