On 21 Nov 2014 18:09, Lutz Vieweg wrote:
> The relevant strace output of the above fstrim command:
> > stat("/mnt/PFexp1", {st_mode=S_IFDIR|0755, st_size=6, ...}) = 0
> > open("/mnt/PFexp1", O_RDONLY) = 3
> > ioctl(3, FITRIM, 0x7fff0733a4c0) = -1 EIO (Input/output error)
that hasn't decoded the ioctl (send a patch for that), but guess is that you're
passing down the default:
range.start = 0;
range.minlen = 0;
range.len = UULONG_MAX;
in which case the expectation is the kernel layers will take care of trimming
everything and not die when it hits the end of the device.
-mike
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