--- Documentation/device-mapper/thin-provisioning.txt | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) Index: linux-3.1-rc9/Documentation/device-mapper/thin-provisioning.txt =================================================================== --- linux-3.1-rc9.orig/Documentation/device-mapper/thin-provisioning.txt +++ linux-3.1-rc9/Documentation/device-mapper/thin-provisioning.txt @@ -187,17 +187,18 @@ i) Constructor ii) Status - - + / + / + transaction id: A 64-bit number used by userspace to help synchronise with metadata from volume managers. - free data space in sectors: - If this drops below the pool's low water mark a dm event will - be sent to userspace. This event is edge-triggered and it - will occur only once after each resume so volume manager writers + used data sectors / total data sectors + If the number of free sectors drops below the pool's low water mark a + dm event will be sent to userspace. This event is edge-triggered and + it will occur only once after each resume so volume manager writers should register for the event and then check the target's status. held metadata root: