diff options
| author | Max Reitz <mreitz@redhat.com> | 2015-10-19 17:53:20 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2015-10-23 18:18:23 +0200 |
| commit | 53d8f9d8fbf85f04d423958248f8c2fbe1ece192 (patch) | |
| tree | ba6ca6674094327a8cc72968c9aac59d5bbcc81c /qmp-commands.hx | |
| parent | 68e9ec017bb00b96633d48b5bf039a37daa3bc21 (diff) | |
block: Remove wr_highest_sector from BlockAcctStats
BlockAcctStats contains statistics about the data transferred from and
to the device; wr_highest_sector does not fit in with the rest.
Furthermore, those statistics are supposed to be specific for a certain
device and not necessarily for a BDS (see the comment above
bdrv_get_stats()); on the other hand, wr_highest_sector may be a rather
important information to know for each BDS. When BlockAcctStats is
finally removed from the BDS, we will want to keep wr_highest_sector in
the BDS.
Finally, wr_highest_sector is renamed to wr_highest_offset and given the
appropriate meaning. Externally, it is represented as an offset so there
is no point in doing something different internally. Its definition is
changed to match that in qapi/block-core.json which is "the offset after
the greatest byte written to". Doing so should not cause any harm since
if external programs tried to calculate the volume usage by
(wr_highest_offset + 512) / volume_size, after this patch they will just
assume the volume to be full slightly earlier than before.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qmp-commands.hx')
| -rw-r--r-- | qmp-commands.hx | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/qmp-commands.hx b/qmp-commands.hx index 2b52980cfc..d7cf0ff264 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -2520,8 +2520,8 @@ Each json-object contain the following: - "wr_total_time_ns": total time spend on writes in nano-seconds (json-int) - "rd_total_time_ns": total time spend on reads in nano-seconds (json-int) - "flush_total_time_ns": total time spend on cache flushes in nano-seconds (json-int) - - "wr_highest_offset": Highest offset of a sector written since the - BlockDriverState has been opened (json-int) + - "wr_highest_offset": The offset after the greatest byte written to the + BlockDriverState since it has been opened (json-int) - "rd_merged": number of read requests that have been merged into another request (json-int) - "wr_merged": number of write requests that have been merged into |