Whether we have a write back cache and are using FUA or don't have a write back cache at all is the same situation. Treat them the same. Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> --- fs/iomap/direct-io.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 6b302bf8790b..b30c3edf2ef3 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -280,7 +280,8 @@ static loff_t iomap_dio_bio_iter(const struct iomap_iter *iter, * cache flushes on IO completion. */ if (!(iomap->flags & (IOMAP_F_SHARED|IOMAP_F_DIRTY)) && - (dio->flags & IOMAP_DIO_WRITE_FUA) && bdev_fua(iomap->bdev)) + (dio->flags & IOMAP_DIO_WRITE_FUA) && + (bdev_fua(iomap->bdev) || !bdev_write_cache(iomap->bdev))) use_fua = true; } -- 2.40.1
