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authorMilan Broz <mbroz@redhat.com>2012-03-28 18:41:23 +0100
committerAlasdair G Kergon <agk@redhat.com>2012-03-28 18:41:23 +0100
commit1d330ec6f9186bda04fdf63ed513cd0cc84bd102 (patch)
tree037b8a6e4797ff7c9668d63f7136097d020400e7
parentb0988900bae9ecf968a8a8d086a9eec671a9517a (diff)
dm: document sysfs entries
Describe attributes provided by device-mapper in /sys/block. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
-rw-r--r--Documentation/ABI/testing/sysfs-block-dm25
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-block-dm b/Documentation/ABI/testing/sysfs-block-dm
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index 00000000000..87ca5691e29
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+++ b/Documentation/ABI/testing/sysfs-block-dm
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+What: /sys/block/dm-<num>/dm/name
+Date: January 2009
+KernelVersion: 2.6.29
+Contact: dm-devel@redhat.com
+Description: Device-mapper device name.
+ Read-only string containing mapped device name.
+Users: util-linux, device-mapper udev rules
+
+What: /sys/block/dm-<num>/dm/uuid
+Date: January 2009
+KernelVersion: 2.6.29
+Contact: dm-devel@redhat.com
+Description: Device-mapper device UUID.
+ Read-only string containing DM-UUID or empty string
+ if DM-UUID is not set.
+Users: util-linux, device-mapper udev rules
+
+What: /sys/block/dm-<num>/dm/suspended
+Date: June 2009
+KernelVersion: 2.6.31
+Contact: dm-devel@redhat.com
+Description: Device-mapper device suspend state.
+ Contains the value 1 while the device is suspended.
+ Otherwise it contains 0. Read-only attribute.
+Users: util-linux, device-mapper udev rules