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Documentation has been compiled from git logs and by reading through code. Signed-off-by: Aishwarya Pant <aishpant@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
51 lines
1.4 KiB
Plaintext
51 lines
1.4 KiB
Plaintext
What: /sys/block/loopX/loop/autoclear
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Date: Aug, 2010
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KernelVersion: v2.6.37
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Contact: linux-block@vger.kernel.org
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Description:
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(RO) Shows if the device is in autoclear mode or not ( "1" or
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"0"). Autoclear (if set) indicates that the loopback device will
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self-distruct after last close.
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What: /sys/block/loopX/loop/backing_file
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Date: Aug, 2010
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KernelVersion: v2.6.37
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Contact: linux-block@vger.kernel.org
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Description:
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(RO) The path of the backing file that the loop device maps its
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data blocks to.
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What: /sys/block/loopX/loop/offset
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Date: Aug, 2010
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KernelVersion: v2.6.37
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Contact: linux-block@vger.kernel.org
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Description:
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(RO) Start offset (in bytes).
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What: /sys/block/loopX/loop/sizelimit
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Date: Aug, 2010
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KernelVersion: v2.6.37
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Contact: linux-block@vger.kernel.org
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Description:
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(RO) The size (in bytes) that the block device maps, starting
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from the offset.
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What: /sys/block/loopX/loop/partscan
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Date: Aug, 2011
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KernelVersion: v3.10
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Contact: linux-block@vger.kernel.org
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Description:
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(RO) Shows if automatic partition scanning is enabled for the
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device or not ("1" or "0"). This can be requested individually
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per loop device during its setup by setting LO_FLAGS_PARTSCAN in
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in the ioctl request. By default, no partition tables are
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scanned.
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What: /sys/block/loopX/loop/dio
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Date: Aug, 2015
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KernelVersion: v4.10
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Contact: linux-block@vger.kernel.org
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Description:
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(RO) Shows if direct IO is being used to access backing file or
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not ("1 or "0").
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