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Stefan Hajnoczi fba31bae2d qcow2: record fragmentation statistics during check 
The qemu-img check command can display fragmentation statistics:
 * Total number of clusters in virtual disk
 * Number of allocated clusters
 * Number of fragmented clusters

This patch adds fragmentation statistics support to qcow2.

Compressed and normal clusters count as allocated.  Zero clusters are
not counted as allocated unless their L2 entry has a non-zero offset
(e.g. preallocation).

Only the current L1 table counts towards the statistics - snapshots are
ignored.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-02-22 21:21:09 +01:00
..
blkdebug.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
blkverify.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
bochs.c bochs: Fix bdrv_open() error handling 2013-02-01 14:58:28 +01:00
cloop.c cloop: Fix bdrv_open() error handling 2013-02-01 14:58:28 +01:00
commit.c block: fix null-pointer bug on error case in block commit 2013-01-17 10:51:11 +01:00
cow.c block: Use error code EMEDIUMTYPE for wrong format in some block drivers 2013-01-25 18:18:35 +01:00
curl.c block/curl: only restrict protocols with libcurl>=7.19.4 2013-02-13 11:57:35 -06:00
dmg.c dmg: Use g_free instead of free 2013-02-01 14:58:29 +01:00
gluster.c error: Strip trailing '\n' from error string arguments (again) 2013-02-11 08:13:19 -06:00
iscsi.c iscsi: add support for iovectors 2013-01-24 15:37:55 +01:00
linux-aio.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
Makefile.objs build: move rules from Makefile to */Makefile.objs 2012-12-19 08:29:06 +01:00
mirror.c mirror: do nothing on zero-sized disk 2013-01-25 18:18:35 +01:00
nbd.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
parallels.c parallels: Fix bdrv_open() error handling 2013-02-01 14:58:29 +01:00
qcow2-cache.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
qcow2-cluster.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
qcow2-refcount.c qcow2: record fragmentation statistics during check 2013-02-22 21:21:09 +01:00
qcow2-snapshot.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
qcow2.c block: Use error code EMEDIUMTYPE for wrong format in some block drivers 2013-01-25 18:18:35 +01:00
qcow2.h block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
qcow.c block: Use error code EMEDIUMTYPE for wrong format in some block drivers 2013-01-25 18:18:35 +01:00
qed-check.c qed: mark image clean after repair succeeds 2012-08-10 10:25:12 +02:00
qed-cluster.c Use glib memory allocation and free functions 2011-08-20 23:01:08 -05:00
qed-gencb.c Use glib memory allocation and free functions 2011-08-20 23:01:08 -05:00
qed-l2-cache.c qed: do not evict in-use L2 table cache entries 2012-03-12 15:14:06 +01:00
qed-table.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
qed.c block: Use error code EMEDIUMTYPE for wrong format in some block drivers 2013-01-25 18:18:35 +01:00
qed.h block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
raw-aio.h block: make discard asynchronous 2013-01-15 10:03:47 +01:00
raw-posix.c block/raw-posix: detect readonly Linux block devices using BLKROGET 2013-02-12 12:22:49 +01:00
raw-win32.c block/raw-win32: Fix compiler warnings (wrong format specifiers) 2013-01-02 16:08:57 +01:00
raw.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
rbd.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
sheepdog.c sheepdog: pass vdi_id to sheep daemon for sd_close() 2013-02-01 14:58:28 +01:00
stream.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
vdi.c g_malloc(0) and g_malloc0(0) return NULL; simplify 2013-01-30 11:14:46 +01:00
vmdk.c vmdk: Allow space in file name 2013-02-01 14:58:29 +01:00
vpc.c Revert "block/vpc: Fix size calculation" 2013-02-12 12:25:15 +01:00
vvfat.c Replace remaining gmtime, localtime by gmtime_r, localtime_r 2013-01-11 09:44:37 +01:00
win32-aio.c win32-aio: use iov utility functions instead of open-coding them 2013-01-18 09:57:51 +01:00