On Fri, Apr 02, 2021 at 08:15:12PM +0530, Navin P wrote:

Hi, C11 and c++11 have memory order like memory_order_seq_cst .What is the equivalent in Linux kernel ? atomic64_inc(&var) ; __SMP_mb();

Please read Documentation/memory-barriers.txt in the kernel source tree. It should answer all of your questions regarding this. good luck! greg k-h