We can't go below the minimum direct I/O size no matter if direct I/O is
enabled by passing in an O_DIRECT file descriptor or due to the explicit
flag. Now that LO_FLAGS_DIRECT_IO is set earlier after assigning a
backing file, loop_default_blocksize can check it instead of the
O_DIRECT flag to handle both conditions.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
drivers/block/loop.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 11f483d43bf4..36b01c36e06b 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -979,7 +979,7 @@ static unsigned int loop_default_blocksize(struct loop_device *lo,
struct block_device *backing_bdev)
{
/* In case of direct I/O, match underlying block size */
- if ((lo->lo_backing_file->f_flags & O_DIRECT) && backing_bdev)
+ if ((lo->lo_flags & LO_FLAGS_DIRECT_IO) && backing_bdev)
return bdev_logical_block_size(backing_bdev);
return SECTOR_SIZE;
}
--
2.45.2
