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async: remove unnecessary inc/dec pairs

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Pull the increment/decrement pair out of aio_bh_poll and into the
callers.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170213135235.12274-18-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Paolo Bonzini 2017-02-13 14:52:34 +01:00 • committed by Stefan Hajnoczi
parent a153bf52b3
commit bd451435c0
3 changed files with 13 additions and 15 deletions
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8
util/aio-posix.c
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@ -425,9 +425,8 @@ static bool aio_dispatch_handlers(AioContext *ctx)
void aio_dispatch(AioContext *ctx)
{
aio_bh_poll(ctx);
qemu_lockcnt_inc(&ctx->list_lock);
aio_bh_poll(ctx);
aio_dispatch_handlers(ctx);
qemu_lockcnt_dec(&ctx->list_lock);
@ -679,16 +678,15 @@ bool aio_poll(AioContext *ctx, bool blocking)
}
npfd = 0;
qemu_lockcnt_dec(&ctx->list_lock);
progress |= aio_bh_poll(ctx);
if (ret > 0) {
qemu_lockcnt_inc(&ctx->list_lock);
progress |= aio_dispatch_handlers(ctx);
qemu_lockcnt_dec(&ctx->list_lock);
}
qemu_lockcnt_dec(&ctx->list_lock);
progress |= timerlistgroup_run_timers(&ctx->tlg);
return progress;