| What: /sys/block/loopX/loop/autoclear |
| Date: Aug, 2010 |
| KernelVersion: v2.6.37 |
| Contact: linux-block@vger.kernel.org |
| Description: |
| (RO) Shows if the device is in autoclear mode or not ( "1" or |
| "0"). Autoclear (if set) indicates that the loopback device will |
| self-distruct after last close. |
| |
| What: /sys/block/loopX/loop/backing_file |
| Date: Aug, 2010 |
| KernelVersion: v2.6.37 |
| Contact: linux-block@vger.kernel.org |
| Description: |
| (RO) The path of the backing file that the loop device maps its |
| data blocks to. |
| |
| What: /sys/block/loopX/loop/offset |
| Date: Aug, 2010 |
| KernelVersion: v2.6.37 |
| Contact: linux-block@vger.kernel.org |
| Description: |
| (RO) Start offset (in bytes). |
| |
| What: /sys/block/loopX/loop/sizelimit |
| Date: Aug, 2010 |
| KernelVersion: v2.6.37 |
| Contact: linux-block@vger.kernel.org |
| Description: |
| (RO) The size (in bytes) that the block device maps, starting |
| from the offset. |
| |
| What: /sys/block/loopX/loop/partscan |
| Date: Aug, 2011 |
| KernelVersion: v3.10 |
| Contact: linux-block@vger.kernel.org |
| Description: |
| (RO) Shows if automatic partition scanning is enabled for the |
| device or not ("1" or "0"). This can be requested individually |
| per loop device during its setup by setting LO_FLAGS_PARTSCAN in |
| in the ioctl request. By default, no partition tables are |
| scanned. |
| |
| What: /sys/block/loopX/loop/dio |
| Date: Aug, 2015 |
| KernelVersion: v4.10 |
| Contact: linux-block@vger.kernel.org |
| Description: |
| (RO) Shows if direct IO is being used to access backing file or |
| not ("1 or "0"). |