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| author | Valentin Schneider <valentin.schneider@arm.com> | 2019-09-23 16:36:17 +0200 |
|---|---|---|
| committer | Paul Walmsley <paul.walmsley@sifive.com> | 2019-10-10 01:48:27 +0200 |
| commit | cd9e72b80090a8cd7d84a47a30a06fa92ff277d1 (patch) | |
| tree | 0e4c829c10514379d9d9635d7e0bbc09ad7b1e65 /arch/riscv/kernel | |
| parent | riscv: Correct the handling of unexpected ebreak in do_trap_break() (diff) | |
| download | linux-cd9e72b80090a8cd7d84a47a30a06fa92ff277d1.tar.xz linux-cd9e72b80090a8cd7d84a47a30a06fa92ff277d1.zip | |
RISC-V: entry: Remove unneeded need_resched() loop
Since the enabling and disabling of IRQs within preempt_schedule_irq()
is contained in a need_resched() loop, we don't need the outer arch
code loop.
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Diffstat (limited to 'arch/riscv/kernel')
| -rw-r--r-- | arch/riscv/kernel/entry.S | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S index 2d592da1e776..8ca479831142 100644 --- a/arch/riscv/kernel/entry.S +++ b/arch/riscv/kernel/entry.S @@ -273,12 +273,11 @@ restore_all: resume_kernel: REG_L s0, TASK_TI_PREEMPT_COUNT(tp) bnez s0, restore_all -need_resched: REG_L s0, TASK_TI_FLAGS(tp) andi s0, s0, _TIF_NEED_RESCHED beqz s0, restore_all call preempt_schedule_irq - j need_resched + j restore_all #endif work_pending: |