kernel mailz writes: > Consider atomic_add and atomic_add_return in kernel code. > I am not able to figure out why "memory" is added in latter
The "memory" indicates that gcc should not reorder accesses to memory from one side of the asm to the other. The reason for putting it on the atomic ops that return a value is that they are sometimes used to implement locks or other synchronization primitives. Paul. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
