OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity
qemu-e2k/block
History
Kevin Wolf b7ab0fea37 qcow2: Fix avail_sectors in cluster allocation code 
avail_sectors should really be the number of sectors from the start of
the allocation, not from the start of the write request.

We're lucky enough that this mistake didn't cause any real bug.
avail_sectors is only used in the intialiser of QCowL2Meta:

  .nb_available   = MIN(requested_sectors, avail_sectors),

m->nb_available in turn is only used for COW at the end of the
allocation. A COW occurs only if the request wasn't cluster aligned,
which in turn would imply that requested_sectors was less than
avail_sectors (both in the original and in the fixed version). In this
case avail_sectors is ignored and therefore the mistake doesn't cause
any misbehaviour.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
 		2012-06-15 14:03:43 +02:00
..
Makefile.objs build: move block/ objects to nested Makefile.objs 2012-06-07 09:21:13 +02:00
blkdebug.c block: push recursive flushing up from drivers 2012-04-05 14:54:39 +02:00
blkverify.c block: replace unchecked strdup/malloc/calloc with glib 2012-01-26 11:39:03 +01:00
bochs.c block: take lock around bdrv_read implementations 2011-10-21 17:34:14 +02:00
cloop.c block/cloop: Use g_free instead of free 2011-11-04 14:24:12 +01:00
cow.c block: Fix spelling in comment (ineffcient -> inefficient) 2012-04-19 15:48:52 +02:00
curl.c aio: remove process_queue callback and qemu_aio_process_queue 2012-04-19 16:37:53 +02:00
dmg.c block: take lock around bdrv_read implementations 2011-10-21 17:34:14 +02:00
iscsi.c ISCSI: Switch to using READ16/WRITE16 for I/O to the LUN 2012-05-28 14:04:16 +02:00
nbd.c nbd: Fix uninitialised use of s->sock 2012-04-26 17:54:22 +02:00
parallels.c block: take lock around bdrv_read implementations 2011-10-21 17:34:14 +02:00
qcow.c block: push recursive flushing up from drivers 2012-04-05 14:54:39 +02:00
qcow2-cache.c qcow2: always operate caches in writeback mode 2012-06-15 14:03:43 +02:00
qcow2-cluster.c qcow2: Fix avail_sectors in cluster allocation code 2012-06-15 14:03:43 +02:00
qcow2-refcount.c qcow2: always operate caches in writeback mode 2012-06-15 14:03:43 +02:00
qcow2-snapshot.c qcow2: fix the return value -ENOENT -> -EEXIST 2012-05-02 18:39:39 +02:00
qcow2.c qcow2: always operate caches in writeback mode 2012-06-15 14:03:43 +02:00
qcow2.h qcow2: always operate caches in writeback mode 2012-06-15 14:03:43 +02:00
qed-check.c qemu-img check: Print fixed clusters and recheck 2012-06-15 14:03:42 +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 block: bdrv_aio_* do not return NULL 2011-12-15 12:40:07 +01:00
qed.c qemu-img check -r for repairing images 2012-06-15 14:03:42 +02:00
qed.h qed: remove incoming live migration blocker 2012-04-05 16:29:12 +02:00
raw-posix-aio.h prepare for future GPLv2+ relicensing 2012-01-13 10:55:56 -06:00
raw-posix.c block: implement is_allocated for raw 2012-06-15 14:03:42 +02:00
raw-win32.c block: Rename bdrv_co_flush to bdrv_co_flush_to_disk 2011-11-11 14:02:59 +01:00
raw.c block: implement is_allocated for raw 2012-06-15 14:03:42 +02:00
rbd.c rbd: hook up cache options 2012-06-15 14:03:42 +02:00
sheepdog.c sheepdog: add coroutine_fn markers to coroutine functions 2012-06-15 14:03:42 +02:00
stream.c stream: move rate limiting to a separate header file 2012-06-15 14:03:42 +02:00
vdi.c qemu-img check -r for repairing images 2012-06-15 14:03:42 +02:00
vmdk.c block: push recursive flushing up from drivers 2012-04-05 14:54:39 +02:00
vpc.c block/vpc: write checksum back to footer after check 2012-04-05 14:54:40 +02:00
vvfat.c block: prevent snapshot mode $TMPDIR symlink attack 2012-05-30 10:18:20 +02:00