From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53057) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fp2T0-0003Mp-N4 for qemu-devel@nongnu.org; Sun, 12 Aug 2018 22:20:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fp2Sx-0007jf-Gt for qemu-devel@nongnu.org; Sun, 12 Aug 2018 22:20:22 -0400 From: Max Reitz Date: Mon, 13 Aug 2018 04:19:51 +0200 Message-Id: <20180813022006.7216-3-mreitz@redhat.com> In-Reply-To: <20180813022006.7216-1-mreitz@redhat.com> References: <20180813022006.7216-1-mreitz@redhat.com> Subject: [Qemu-devel] [PATCH 02/17] mirror: Make wait_for_any_operation() coroutine_fn List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, Max Reitz , Kevin Wolf , Jeff Cody , Fam Zheng mirror_wait_for_any_operation() calls qemu_co_queue_wait(), which is a coroutine_fn (technically it is a macro which resolves to a coroutine_fn). Therefore, this function needs to be a coroutine_fn as well. This patch makes it and all of its callers coroutine_fns. Signed-off-by: Max Reitz --- block/mirror.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/block/mirror.c b/block/mirror.c index 85f5742eae..c28b6159d5 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -279,7 +279,8 @@ static int mirror_cow_align(MirrorBlockJob *s, int64_t *offset, return ret; } -static inline void mirror_wait_for_any_operation(MirrorBlockJob *s, bool active) +static inline void coroutine_fn + mirror_co_wait_for_any_operation(MirrorBlockJob *s, bool active) { MirrorOp *op; @@ -297,10 +298,11 @@ static inline void mirror_wait_for_any_operation(MirrorBlockJob *s, bool active) abort(); } -static inline void mirror_wait_for_free_in_flight_slot(MirrorBlockJob *s) +static inline void coroutine_fn + mirror_co_wait_for_free_in_flight_slot(MirrorBlockJob *s) { /* Only non-active operations use up in-flight slots */ - mirror_wait_for_any_operation(s, false); + mirror_co_wait_for_any_operation(s, false); } /* Perform a mirror copy operation. @@ -343,7 +345,7 @@ static void coroutine_fn mirror_co_read(void *opaque) while (s->buf_free_count < nb_chunks) { trace_mirror_yield_in_flight(s, op->offset, s->in_flight); - mirror_wait_for_free_in_flight_slot(s); + mirror_co_wait_for_free_in_flight_slot(s); } /* Now make a QEMUIOVector taking enough granularity-sized chunks @@ -549,7 +551,7 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s) while (s->in_flight >= MAX_IN_FLIGHT) { trace_mirror_yield_in_flight(s, offset, s->in_flight); - mirror_wait_for_free_in_flight_slot(s); + mirror_co_wait_for_free_in_flight_slot(s); } if (s->ret < 0) { @@ -600,10 +602,10 @@ static void mirror_free_init(MirrorBlockJob *s) * mirror_resume() because mirror_run() will begin iterating again * when the job is resumed. */ -static void mirror_wait_for_all_io(MirrorBlockJob *s) +static void coroutine_fn mirror_co_wait_for_all_io(MirrorBlockJob *s) { while (s->in_flight > 0) { - mirror_wait_for_free_in_flight_slot(s); + mirror_co_wait_for_free_in_flight_slot(s); } } @@ -762,7 +764,7 @@ static int coroutine_fn mirror_dirty_init(MirrorBlockJob *s) if (s->in_flight >= MAX_IN_FLIGHT) { trace_mirror_yield(s, UINT64_MAX, s->buf_free_count, s->in_flight); - mirror_wait_for_free_in_flight_slot(s); + mirror_co_wait_for_free_in_flight_slot(s); continue; } @@ -770,7 +772,7 @@ static int coroutine_fn mirror_dirty_init(MirrorBlockJob *s) offset += bytes; } - mirror_wait_for_all_io(s); + mirror_co_wait_for_all_io(s); s->initial_zeroing_ongoing = false; } @@ -916,7 +918,7 @@ static void coroutine_fn mirror_run(void *opaque) /* Do not start passive operations while there are active * writes in progress */ while (s->in_active_write_counter) { - mirror_wait_for_any_operation(s, true); + mirror_co_wait_for_any_operation(s, true); } if (s->ret < 0) { @@ -942,7 +944,7 @@ static void coroutine_fn mirror_run(void *opaque) if (s->in_flight >= MAX_IN_FLIGHT || s->buf_free_count == 0 || (cnt == 0 && s->in_flight > 0)) { trace_mirror_yield(s, cnt, s->buf_free_count, s->in_flight); - mirror_wait_for_free_in_flight_slot(s); + mirror_co_wait_for_free_in_flight_slot(s); continue; } else if (cnt != 0) { delay_ns = mirror_iteration(s); @@ -1028,7 +1030,7 @@ immediate_exit: assert(ret < 0 || ((s->common.job.force_cancel || !s->synced) && job_is_cancelled(&s->common.job))); assert(need_drain); - mirror_wait_for_all_io(s); + mirror_co_wait_for_all_io(s); } assert(s->in_flight == 0); @@ -1098,11 +1100,11 @@ static void mirror_complete(Job *job, Error **errp) job_enter(job); } -static void mirror_pause(Job *job) +static void coroutine_fn mirror_pause(Job *job) { MirrorBlockJob *s = container_of(job, MirrorBlockJob, common.job); - mirror_wait_for_all_io(s); + mirror_co_wait_for_all_io(s); } static bool mirror_drained_poll(BlockJob *job) -- 2.17.1