1 What: /sys/block/loopX/loop/autoclea 1 What: /sys/block/loopX/loop/autoclear
2 Date: Aug, 2010 2 Date: Aug, 2010
3 KernelVersion: v2.6.37 3 KernelVersion: v2.6.37
4 Contact: linux-block@vger.kernel.org 4 Contact: linux-block@vger.kernel.org
5 Description: 5 Description:
6 (RO) Shows if the device is in 6 (RO) Shows if the device is in autoclear mode or not ( "1" or
7 "0"). Autoclear (if set) indic 7 "0"). Autoclear (if set) indicates that the loopback device will
8 self-distruct after last close 8 self-distruct after last close.
9 9
10 What: /sys/block/loopX/loop/backing_ 10 What: /sys/block/loopX/loop/backing_file
11 Date: Aug, 2010 11 Date: Aug, 2010
12 KernelVersion: v2.6.37 12 KernelVersion: v2.6.37
13 Contact: linux-block@vger.kernel.org 13 Contact: linux-block@vger.kernel.org
14 Description: 14 Description:
15 (RO) The path of the backing f 15 (RO) The path of the backing file that the loop device maps its
16 data blocks to. 16 data blocks to.
17 17
18 What: /sys/block/loopX/loop/offset 18 What: /sys/block/loopX/loop/offset
19 Date: Aug, 2010 19 Date: Aug, 2010
20 KernelVersion: v2.6.37 20 KernelVersion: v2.6.37
21 Contact: linux-block@vger.kernel.org 21 Contact: linux-block@vger.kernel.org
22 Description: 22 Description:
23 (RO) Start offset (in bytes). 23 (RO) Start offset (in bytes).
24 24
25 What: /sys/block/loopX/loop/sizelimi 25 What: /sys/block/loopX/loop/sizelimit
26 Date: Aug, 2010 26 Date: Aug, 2010
27 KernelVersion: v2.6.37 27 KernelVersion: v2.6.37
28 Contact: linux-block@vger.kernel.org 28 Contact: linux-block@vger.kernel.org
29 Description: 29 Description:
30 (RO) The size (in bytes) that 30 (RO) The size (in bytes) that the block device maps, starting
31 from the offset. 31 from the offset.
32 32
33 What: /sys/block/loopX/loop/partscan 33 What: /sys/block/loopX/loop/partscan
34 Date: Aug, 2011 34 Date: Aug, 2011
35 KernelVersion: v3.10 35 KernelVersion: v3.10
36 Contact: linux-block@vger.kernel.org 36 Contact: linux-block@vger.kernel.org
37 Description: 37 Description:
38 (RO) Shows if automatic partit 38 (RO) Shows if automatic partition scanning is enabled for the
39 device or not ("1" or "0"). Th 39 device or not ("1" or "0"). This can be requested individually
40 per loop device during its set 40 per loop device during its setup by setting LO_FLAGS_PARTSCAN in
41 in the ioctl request. By defau 41 in the ioctl request. By default, no partition tables are
42 scanned. 42 scanned.
43 43
44 What: /sys/block/loopX/loop/dio 44 What: /sys/block/loopX/loop/dio
45 Date: Aug, 2015 45 Date: Aug, 2015
46 KernelVersion: v4.10 46 KernelVersion: v4.10
47 Contact: linux-block@vger.kernel.org 47 Contact: linux-block@vger.kernel.org
48 Description: 48 Description:
49 (RO) Shows if direct IO is bei 49 (RO) Shows if direct IO is being used to access backing file or
50 not ("1 or "0"). 50 not ("1 or "0").
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