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mirror_qemu/block
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Kevin Wolf 3456a8d185 block: Update image size in bdrv_invalidate_cache() 
After migration has completed, we call bdrv_invalidate_cache() so that
drivers which cache some data drop their stale copy of the data and
reread it from the image file to get a new version of data that the
source modified while the migration was running.

Reloading metadata from the image file is useless, though, if the size
of the image file stays stale (this is a value that is cached for all
image formats in block.c). Reads from (meta)data after the old EOF
return only zeroes, causing image corruption.

We need to update bs->total_sectors in all layers that could potentially
have changed their size (i.e. backing files are not a concern - if they
are changed, we're in bigger trouble)

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
 		2014-03-13 14:23:27 +01:00
..
Makefile.objs Block patches 2014-02-25 10:50:11 +00:00
backup.c block: Switch BdrvTrackedRequest to byte granularity 2014-01-24 17:40:02 +01:00
blkdebug.c block: Remove bdrv_open_image()'s force_raw option 2014-02-21 21:02:22 +01:00
blkverify.c blkverify: Extract qemu_iovec_clone() and qemu_iovec_compare() from blkverify. 2014-02-21 22:29:49 +01:00
bochs.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
cloop.c bdrv: Use "Error" for opening images 2013-09-12 10:12:47 +02:00
commit.c commit: Remove unused check 2013-12-20 16:26:16 +01:00
cow.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
curl.c curl: correctly propagate errors 2014-02-21 21:02:23 +01:00
dmg.c bdrv: Use "Error" for opening images 2013-09-12 10:12:47 +02:00
gluster.c gluster: Remove unused defines and header include 2014-03-05 15:58:32 +01:00
iscsi.c iscsi: Use bs->sg for everything else than disks 2014-03-05 16:58:20 +01:00
linux-aio.c aio: drop io_flush argument 2013-08-19 15:52:19 +02:00
mirror.c block: mirror - remove code cruft that has no function 2014-03-06 11:47:40 +01:00
nbd-client.c nbd: avoid uninitialized warnings 2013-12-16 10:12:20 +01:00
nbd-client.h nbd: pass export name as init argument 2013-12-16 10:12:20 +01:00
nbd.c nbd: correctly propagate errors 2014-02-21 21:02:22 +01:00
nfs.c block: add native support for NFS 2014-02-09 09:12:38 +01:00
parallels.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
qapi.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
qcow.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
qcow2-cache.c qcow2: Use negated overflow check mask 2013-10-11 16:50:00 +02:00
qcow2-cluster.c qcow2: Set zero flag for discarded clusters 2014-02-21 21:02:21 +01:00
qcow2-refcount.c qcow2-refcount: Sanitize refcount table entry 2014-03-13 14:23:27 +01:00
qcow2-snapshot.c block: Don't throw away errno via error_setg 2014-02-14 18:05:38 +01:00
qcow2.c block: Update image size in bdrv_invalidate_cache() 2014-03-13 14:23:27 +01:00
qcow2.h qcow2: remove n_start and n_end of qcow2_alloc_cluster_offset() 2014-02-09 09:12:39 +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: Update image size in bdrv_invalidate_cache() 2014-03-13 14:23:27 +01:00
qed.h block: qed - use QEMU_PACKED for on-disk structures 2013-09-25 20:51:15 +02:00
quorum.c qmp: Make Quorum error events more palatable. 2014-02-28 18:59:06 +01:00
raw-aio.h raw-posix: add support for write_zeroes on XFS and block devices 2013-12-03 15:26:49 +01:00
raw-posix.c block/raw-posix: Strip "file:" prefix on creation 2014-03-06 16:18:09 +01:00
raw-win32.c block/raw-win32: Strip "file:" prefix on creation 2014-03-06 16:18:12 +01:00
raw_bsd.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
rbd.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
sheepdog.c block: Make bdrv_file_open() static 2014-02-21 21:02:22 +01:00
snapshot.c Use error_is_set() only when necessary 2014-02-17 11:57:23 -05:00
ssh.c bdrv: Use "Error" for creating images 2013-09-12 10:12:48 +02:00
stream.c block: Update BlockLimits when they might have changed 2014-01-24 17:40:01 +01:00
vdi.c vdi: say why an image is bad 2014-02-21 21:02:24 +01:00
vhdx-endian.c block: vhdx - move more endian translations to vhdx-endian.c 2013-11-07 13:58:59 +01:00
vhdx-log.c block/vhdx: Error checking fixes 2014-01-31 22:05:03 +01:00
vhdx.c vhdx: correctly propagate errors 2014-02-21 21:02:23 +01:00
vhdx.h block: vhdx - improve error message, and .bdrv_check implementation 2013-12-20 09:11:58 +01:00
vmdk.c block/vmdk: do not report file offset for compressed extents 2014-02-28 18:59:07 +01:00
vpc.c block: do not abuse EMEDIUMTYPE 2014-02-21 21:02:24 +01:00
vvfat.c vvfat: correctly propagate errors 2014-02-21 21:02:23 +01:00
win32-aio.c win32-aio: drop win32_aio_flush_cb() 2013-08-22 22:05:04 +02:00