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2aabe7c7a1
qemu/block
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Max Reitz 2aabe7c7a1 qcow2: Use unsigned addend for update_refcount() 
update_refcount() and qcow2_update_cluster_refcount() currently take a
signed addend. At least one caller passes a value directly derived from
an absolute refcount that should be reached ("l2_refcount - 1" in
expand_zero_clusters_in_l1()). Therefore, the addend should be unsigned
as well; this will be especially important for 64 bit refcounts.

Because update_refcount() then no longer knows whether the refcount
should be increased or decreased, it now requires an additional flag
which specified exactly that. The same applies to
qcow2_update_cluster_refcount().

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10 14:02:21 +01:00
..
accounting.c block: add accounting for merged requests 2015-02-06 17:24:21 +01:00
archipelago.c block: Rename BlockDriverCompletionFunc to BlockCompletionFunc 2014-10-20 13:41:27 +02:00
backup.c qmp: Add command 'blockdev-backup' 2015-01-13 11:47:56 +00:00
blkdebug.c blkdebug: Simplify and improve filename generation 2014-12-10 10:31:11 +01:00
blkverify.c block: Rename BlockDriverCompletionFunc to BlockCompletionFunc 2014-10-20 13:41:27 +02:00
block-backend.c hmp: Normalize HMP command handler names 2015-02-25 13:14:37 +00:00
bochs.c block: Use g_new() & friends to avoid multiplying sizes 2014-08-20 11:51:28 +02:00
cloop.c cloop: Handle failure for potentially large allocations 2014-08-15 15:07:15 +02:00
commit.c block: let commit blockjob run in BDS AioContext 2014-11-03 11:41:49 +00:00
curl.c block/curl: Improve type safety of s->timeout. 2014-11-03 11:41:47 +00:00
dmg.c block/dmg: improve zeroes handling 2015-02-06 17:24:21 +01:00
gluster.c block: don't convert file size to sector size 2014-09-12 15:43:06 +02:00
iscsi.c iscsi: Handle write protected case in reopen 2015-02-27 18:26:31 +01:00
linux-aio.c linux-aio: simplify removal of completed iocbs from the list 2014-12-12 16:57:55 +00:00
Makefile.objs block/dmg: support bzip2 block entry types 2015-02-06 17:24:21 +01:00
mirror.c block: mirror - change string allocation to 2-bytes 2015-01-23 18:17:06 +01:00
nbd-client.c nbd: fix the co_queue multi-adding bug 2015-02-16 15:07:17 +00:00
nbd-client.h nbd: Drop BDS backpointer 2015-02-16 14:36:03 +00:00
nbd.c QemuOpts: Convert qemu_opt_set_number() to Error, fix its use 2015-02-26 14:47:32 +01:00
nfs.c block/nfs: Add create_opts 2014-12-10 10:31:19 +01:00
null.c block: Rename BlockDriverCompletionFunc to BlockCompletionFunc 2014-10-20 13:41:27 +02:00
parallels.c block/parallels: fix access to not initialized memory in catalog_bitmap 2014-11-03 09:48:41 +00:00
qapi.c block: add event when disk usage exceeds threshold 2015-02-06 17:24:21 +01:00
qcow2-cache.c block: Give always priority to unused entries in the qcow2 L2 cache 2015-02-06 17:24:22 +01:00
qcow2-cluster.c qcow2: Use unsigned addend for update_refcount() 2015-03-10 14:02:21 +01:00
qcow2-refcount.c qcow2: Use unsigned addend for update_refcount() 2015-03-10 14:02:21 +01:00
qcow2-snapshot.c qcow2: Allow "full" discard 2014-11-03 11:41:47 +00:00
qcow2.c qcow2: Add refcount_bits to format-specific info 2015-03-10 14:02:20 +01:00
qcow2.h qcow2: Use unsigned addend for update_refcount() 2015-03-10 14:02:21 +01:00
qcow.c block: fix off-by-one error in qcow and qcow2 2015-02-06 17:24:21 +01:00
qed-check.c block: Use g_new() & friends to avoid multiplying sizes 2014-08-20 11:51:28 +02:00
qed-cluster.c Use glib memory allocation and free functions 2011-08-20 23:01:08 -05:00
qed-gencb.c block: Rename BlockDriverCompletionFunc to BlockCompletionFunc 2014-10-20 13:41:27 +02:00
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 block: Rename BlockDriverCompletionFunc to BlockCompletionFunc 2014-10-20 13:41:27 +02:00
qed.c qed: check for header size overflow 2015-02-06 17:24:21 +01:00
qed.h qed: Really remove unused field QEDAIOCB.finished 2015-02-06 17:24:21 +01:00
quorum.c block: Rename BlockDriverCompletionFunc to BlockCompletionFunc 2014-10-20 13:41:27 +02:00
raw_bsd.c block: Make essential BlockDriver objects public 2014-12-10 10:31:19 +01:00
raw-aio.h linux-aio: drop return code from laio_io_unplug and ioq_submit 2014-12-12 16:57:55 +00:00
raw-posix.c block/raw-posix: fix compilation warning on OSX 2015-03-09 11:11:59 +01:00
raw-win32.c block: Remove "growable" from BDS 2015-02-16 15:07:19 +00:00
rbd.c block/rbd: fix memory leak 2014-12-12 13:16:56 +00:00
sheepdog.c sheepdog: selectable object size support 2015-03-09 11:11:59 +01:00
snapshot.c snapshot: add bdrv_drain_all() to bdrv_snapshot_delete() to avoid concurrency problem 2014-11-03 09:48:42 +00:00
ssh.c ssh: Don't crash if either host or path is not specified. 2014-10-03 10:30:33 +01:00
stream.c block: let stream blockjob run in BDS AioContext 2014-11-03 11:41:49 +00:00
vdi.c block: remove BLOCK_OPT_NOCOW from vdi_create_opts 2014-12-10 10:31:20 +01:00
vhdx-endian.c block: VHDX endian fixes 2014-08-15 15:07:14 +02:00
vhdx-log.c block: Drop some superfluous casts from void * 2014-08-20 11:51:28 +02:00
vhdx.c block: vhdx - force FileOffsetMB field to '0' for certain block states 2015-01-23 12:41:32 -05:00
vhdx.h block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec 2014-12-12 15:42:22 +00:00
vmdk.c block: vmdk - fixed sizeof() error 2015-02-16 15:07:17 +00:00
vpc.c vpc: Implement bdrv_co_get_block_status() 2015-03-09 11:11:59 +01:00
vvfat.c QemuOpts: Drop qemu_opt_set(), rename qemu_opt_set_err(), fix use 2015-02-26 14:49:31 +01:00
win32-aio.c block: Rename BlockDriverCompletionFunc to BlockCompletionFunc 2014-10-20 13:41:27 +02:00
write-threshold.c block: add event when disk usage exceeds threshold 2015-02-06 17:24:21 +01:00