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From: Tejun Heo on 12 Aug 2010 08:50
loop implements FLUSH using fsync but was incorrectly setting its
ordered mode to DRAIN. Change it to DRAIN_FLUSH. In practice, this
doesn't change anything as loop doesn't make use of the block layer
ordered implementation.

Signed-off-by: Tejun Heo <tj(a)kernel.org>
---
drivers/block/loop.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index f3c636d..c3a4a2e 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -832,7 +832,7 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
lo->lo_queue->unplug_fn = loop_unplug;

if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync)
- blk_queue_ordered(lo->lo_queue, QUEUE_ORDERED_DRAIN);
+ blk_queue_ordered(lo->lo_queue, QUEUE_ORDERED_DRAIN_FLUSH);

set_capacity(lo->lo_disk, size);
bd_set_size(bdev, size << 9);
--
1.7.1

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