From: Stefan Hajnoczi <stefa...@redhat.com> This patch simplifies thread_pool_completion_bh().
The function first checks elem->state: if (elem->state != THREAD_DONE) { continue; } It then goes on to check elem->state == THREAD_DONE although we already know this must be the case. The QLIST_REMOVE() is duplicated down both branches of an if-else statement so that can be lifted out as well. Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com> Reviewed-by: Paolo Bonzini <pbonz...@redhat.com> Message-id: 1427992762-10126-1-git-send-email-stefa...@redhat.com Signed-off-by: Kevin Wolf <kw...@redhat.com> --- thread-pool.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/thread-pool.c b/thread-pool.c index e2cac8e..ac909f4 100644 --- a/thread-pool.c +++ b/thread-pool.c @@ -170,12 +170,12 @@ restart: if (elem->state != THREAD_DONE) { continue; } - if (elem->state == THREAD_DONE) { - trace_thread_pool_complete(pool, elem, elem->common.opaque, - elem->ret); - } - if (elem->state == THREAD_DONE && elem->common.cb) { - QLIST_REMOVE(elem, all); + + trace_thread_pool_complete(pool, elem, elem->common.opaque, + elem->ret); + QLIST_REMOVE(elem, all); + + if (elem->common.cb) { /* Read state before ret. */ smp_rmb(); @@ -188,8 +188,6 @@ restart: qemu_aio_unref(elem); goto restart; } else { - /* remove the request */ - QLIST_REMOVE(elem, all); qemu_aio_unref(elem); } } -- 1.8.3.1