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| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-22 18:57:34 +0000 |
|---|---|---|
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2009-01-22 18:57:34 +0000 |
| commit | 1987530fe0fbe00970d572cd2eda5a149aac3333 (patch) | |
| tree | 6c12ca3999b605f5b47a1510691ebafe5010528d /qemu-img.c | |
| parent | a7cbfae0cf8c3c905236baec391f7a82540f1193 (diff) | |
qcow2 format: keep 'num_free_bytes', and show it upon 'info blockstats' (Uri Lublin)
'num_free_bytes' is the number of non-allocated bytes below highest-allocation.
It's useful, together with the highest-allocation, to figure out how
fragmented the image is, and how likely it will run out-of-space soon.
For example when the highest allocation is high (almost end-of-disk), but
many bytes (clusters) are free, and can be re-allocated when neeeded, than
we know it's probably not going to reach end-of-disk-space soon.
Added bookkeeping to block-qcow2.c
Export it using BlockDeviceInfo
Show it upon 'info blockstats' if BlockDeviceInfo exists
Signed-off-by: Uri Lublin <uril@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6407 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'qemu-img.c')
0 files changed, 0 insertions, 0 deletions