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Commit ab1cb278 authored by Ming Lei's avatar Ming Lei Committed by Jens Axboe
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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: default avatarMing Lei <ming.lei@canonical.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent 2e5ab5f3
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