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| author | Palmer Dabbelt <palmerdabbelt@google.com> | 2020-07-16 11:57:26 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2020-07-17 09:28:35 -0700 |
| commit | 38b7c2a3ffb1fce8358ddc6006cfe5c038ff9963 (patch) | |
| tree | 95be1d51d69478dbf93f5bb8c2a4e6c7729d21f9 /drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | |
| parent | 0cac21b02ba5f3095fd2dcc77c26a25a0b2432ed (diff) | |
| download | linux-38b7c2a3ffb1fce8358ddc6006cfe5c038ff9963.tar.bz2 | |
RISC-V: Upgrade smp_mb__after_spinlock() to iorw,iorw
While digging through the recent mmiowb preemption issue it came up that
we aren't actually preventing IO from crossing a scheduling boundary.
While it's a bit ugly to overload smp_mb__after_spinlock() with this
behavior, it's what PowerPC is doing so there's some precedent.
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'drivers/perf/hisilicon/hisi_uncore_hha_pmu.c')
0 files changed, 0 insertions, 0 deletions