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| author | Vineet Gupta <vgupta@kernel.org> | 2020-05-06 15:13:25 -0700 |
|---|---|---|
| committer | Vineet Gupta <vgupta@kernel.org> | 2021-08-24 14:25:47 -0700 |
| commit | e188f3330a13df904d77003846eafd3edf99009d (patch) | |
| tree | c65d39539b8ff479e5bbf8164da9290fc931952a /lib/test_fortify/write_overflow-memcpy.c | |
| parent | ecf51c9fa0960fd25cd66f2280fb1980b0d2e300 (diff) | |
ARC: cmpxchg/xchg: rewrite as macros to make type safe
Existing code forces/assume args to type "long" which won't work in LP64
regime, so prepare code for that
Interestingly this should be a non functional change but I do see
some codegen changes
| bloat-o-meter vmlinux-cmpxchg-A vmlinux-cmpxchg-B
| add/remove: 0/0 grow/shrink: 17/12 up/down: 218/-150 (68)
|
| Function old new delta
| rwsem_optimistic_spin 518 550 +32
| rwsem_down_write_slowpath 1244 1274 +30
| __do_sys_perf_event_open 2576 2600 +24
| down_read 192 200 +8
| __down_read 192 200 +8
...
| task_work_run 168 148 -20
| dma_fence_chain_walk.part 760 736 -24
| __genradix_ptr_alloc 674 646 -28
Total: Before=6187409, After=6187477, chg +0.00%
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
Diffstat (limited to 'lib/test_fortify/write_overflow-memcpy.c')
0 files changed, 0 insertions, 0 deletions