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Christoph Lameter authored
The this_cpu_* options can be used to optimize __percpu_counter_add a bit. Avoids some address arithmetic and saves 12 bytes. Before: 00000000000001d3 <__percpu_counter_add>: 1d3: 55 push %rbp 1d4: 48 89 e5 mov %rsp,%rbp 1d7: 41 55 push %r13 1d9: 41 54 push %r12 1db: 53 push %rbx 1dc: 48 89 fb mov %rdi,%rbx 1df: 48 83 ec 08 sub $0x8,%rsp 1e3: 4c 8b 67 30 mov 0x30(%rdi),%r12 1e7: 65 4c 03 24 25 00 00 add %gs:0x0,%r12 1ee: 00 00 1f0: 4d 63 2c 24 movslq (%r12),%r13 1f4: 48 63 c2 movslq %edx,%rax 1f7: 49 01 f5 add %rsi,%r13 1fa: 49 39 c5 cmp %rax,%r13 1fd: 7d 0a jge 209 <__percpu_counter_add+0x36> 1ff: f7 da neg %edx 201: 48 63 d2 movslq %edx,%rdx 204: 49 39 ...
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