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| author |   Atish Patra <atishp@rivosinc.com> | 2022-07-11 10:46:29 -0700 |
|---|---|---|
| committer |   Palmer Dabbelt <palmer@rivosinc.com> | 2022-08-11 14:58:13 -0700 |
| commit | 133a6d1fe7d7ad8393af025c4dde379c0616661f (patch) | |
| tree | 70d63e996e647a55b461dc228a27c362b1f519a3 /scripts/generate_rust_analyzer.py | |
| parent | RISC-V: Fix counter restart during overflow for RV32 (diff) | |
| download | wireguard-linux-133a6d1fe7d7ad8393af025c4dde379c0616661f.tar.xz wireguard-linux-133a6d1fe7d7ad8393af025c4dde379c0616661f.zip | |
RISC-V: Update user page mapping only once during start
Currently, riscv_pmu_event_set_period updates the userpage mapping.
However, the caller of riscv_pmu_event_set_period should update
the userpage mapping because the counter can not be updated/started
from set_period function in counter overflow path.
Invoke the perf_event_update_userpage at the caller so that it
doesn't get invoked twice during counter start path.
Fixes: f5bfa23f576f ("RISC-V: Add a perf core library for pmu drivers")
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220711174632.4186047-3-atishp@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions