Ming Lei ab1cb278bc block: loop: introduce ioctl command of LOOP_SET_DIRECT_IO ...

If loop block is mounted via 'mount -o loop', it isn't easy
to pass file descriptor opened as O_DIRECT, so this patch
introduces a new command to support direct IO for this case.

Cc: linux-api@vger.kernel.org
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>

2015-09-23 11:01:16 -06:00

2.4 KiB

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