Re: zero out blocks of freed user data for operation a virtualmachine environment

[Thomas Glanzmann]

Hello,

> > tunable feature that zeroes our free data

> wouldn't it be better if the VM's would just support the TRIM command?

the resources available to me indicate that the TRIM command is a not
yet standarized command targeted at SSD disks to indicate free disk
space. Does ext3/4 trigger a block device layer call that could result
in a TRIM command?

        Thomas
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