Commit be6fb451 authored by Benjamin LaHaise's avatar Benjamin LaHaise
Browse files

aio: remove no longer needed preempt_disable()

Based on feedback from Jens Axboe on 263782c1

,
clean up get/put_reqs_available() to remove the no longer needed preempt_disable()
and preempt_enable() pair.
Signed-off-by: default avatarBenjamin LaHaise <bcrl@kvack.org>
Cc: Jens Axboe <axboe@kernel.dk>
parent 6e830d53
......@@ -814,10 +814,8 @@ static void put_reqs_available(struct kioctx *ctx, unsigned nr)
struct kioctx_cpu *kcpu;
unsigned long flags;
preempt_disable();
kcpu = this_cpu_ptr(ctx->cpu);
local_irq_save(flags);
kcpu = this_cpu_ptr(ctx->cpu);
kcpu->reqs_available += nr;
while (kcpu->reqs_available >= ctx->req_batch * 2) {
......@@ -826,7 +824,6 @@ static void put_reqs_available(struct kioctx *ctx, unsigned nr)
}
local_irq_restore(flags);
preempt_enable();
}
static bool get_reqs_available(struct kioctx *ctx)
......@@ -835,10 +832,8 @@ static bool get_reqs_available(struct kioctx *ctx)
bool ret = false;
unsigned long flags;
preempt_disable();
kcpu = this_cpu_ptr(ctx->cpu);
local_irq_save(flags);
kcpu = this_cpu_ptr(ctx->cpu);
if (!kcpu->reqs_available) {
int old, avail = atomic_read(&ctx->reqs_available);
......@@ -858,7 +853,6 @@ static bool get_reqs_available(struct kioctx *ctx)
kcpu->reqs_available--;
out:
local_irq_restore(flags);
preempt_enable();
return ret;
}
......
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