LU-10805 ldlm: convert ACCESS_ONCE() to READ_ONCE()
Linux kernel 4.15 removed ACCESS_ONCE, use READ_ONCE instead.
Linux-commit:
b899a850431e2dd0943205a63a68573f3e312d0d
Test-Parameters: trivial
Signed-off-by: Li Dongyang <dongyangli@ddn.com>
Change-Id: I139e4cab95b99f362a85c37efe236137835f9c54
Reviewed-on: https://review.whamcloud.com/31789
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>