[PATCH v3 8/8] engines: posixaio: add support for DDIR_SYNCFS

Damien Le Moal
2026-02-27T06:01:01Z

Flag the posixaio IO engine with FIO_ASYNCIO_SYNC_SYNCFS to indicate
that it supports the syncfs operation, synchronously. Also change
fio_posixaio_queue() to execute aio_fsync() only for sync operations
that are not a syncfs, in which case, we directly call do_io_u_sync().

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
---
engines/posixaio.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/engines/posixaio.c b/engines/posixaio.c
index 2d0ac9fcc369..828e535157a0 100644
--- a/engines/posixaio.c
+++ b/engines/posixaio.c
@@ -142,7 +142,10 @@ static enum fio_q_status fio_posixaio_queue(struct thread_data *td,
return FIO_Q_COMPLETED;
} else {
#ifdef CONFIG_POSIXAIO_FSYNC
- ret = aio_fsync(O_SYNC, aiocb);
+ if (io_u->ddir != DDIR_SYNCFS)
+ ret = aio_fsync(O_SYNC, aiocb);
+ else
+ ret = 0;
#else
if (pd->queued)
return FIO_Q_BUSY;
@@ -196,7 +199,8 @@ static int fio_posixaio_init(struct thread_data *td)
static struct ioengine_ops ioengine = {
.name = "posixaio",
.version = FIO_IOOPS_VERSION,
- .flags = FIO_ASYNCIO_SYNC_TRIM,
+ .flags = FIO_ASYNCIO_SYNC_TRIM |
+ FIO_ASYNCIO_SYNC_SYNCFS,
.init = fio_posixaio_init,
.prep = fio_posixaio_prep,
.queue = fio_posixaio_queue,
--
2.53.0