Thinp: how to enable discards?
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Hello all I have booted a kernel 3.4.2 and compiled latest LVM2 tools. I have created a thin pool and a thin LV. in dmesg it says:[72244.278644] device-mapper: thin: Discard unsupported by data device (dm-1): Disabling discard passdown.
and in fact I cannot discard data on that volume. Not only the passdown doesn't work, but the unmapping doesn't work either.
How can I enable this? Thank you S. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel