Kevin Wolf b1a86eb532 block: Use BDRV_O_NO_BACKING where appropriate ...

If you open an image temporarily just because you want to check its size
or get it flushed, there's no real reason to open the whole backing file
chain.

This is a backport of c9fbb99d41 to
qemu 1.7.1.

The backport was done to fix a bug where QEMU 1.7.1 would crash or freeze
when the user take around 80 consecutives snapshots in a row.

git bisect would lead to commit: ba2ab2f2ca
and it was clear that BDRV_NO_BACKING was missing.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

2014-06-25 16:33:46 -05:00

..

backup.c

qapi: make use of new BlockJobType

2013-10-11 10:52:54 +02:00

blkdebug.c

blkdebug: Employ error parameter

2013-10-11 16:50:00 +02:00

blkverify.c

blkverify: Employ error parameter

2013-10-11 16:50:00 +02:00

bochs.c

bdrv: Use "Error" for opening images

2013-09-12 10:12:47 +02:00

cloop.c

bdrv: Use "Error" for opening images

2013-09-12 10:12:47 +02:00

commit.c

qapi: make use of new BlockJobType

2013-10-11 10:52:54 +02:00

cow.c

block: Error parameter for create functions

2013-09-12 10:12:48 +02:00

curl.c

block/curl: Implement the libcurl timer callback interface

2014-02-21 00:34:40 -06:00

dmg.c

bdrv: Use "Error" for opening images

2013-09-12 10:12:47 +02:00

gluster.c

block: introduce BlockDriver.bdrv_needs_filename to enable some drivers.

2013-09-25 16:21:28 +02:00

iscsi.c

block/iscsi: fix deadlock on scsi check condition

2014-06-25 11:08:29 -05:00

linux-aio.c

aio: drop io_flush argument

2013-08-19 15:52:19 +02:00

Makefile.objs

block: vhdx - log parsing, replay, and flush support

2013-11-07 13:58:58 +01:00

mirror.c

mirror: fix early wake from sleep due to aio

2014-06-25 15:26:29 -05:00

nbd.c

bdrv: Use "Error" for opening images

2013-09-12 10:12:47 +02:00

parallels.c

bdrv: Use "Error" for opening images

2013-09-12 10:12:47 +02:00

qapi.c

block/qapi: Human-readable ImageInfoSpecific dump

2013-10-11 10:52:54 +02:00

qcow2-cache.c

qcow2: Use negated overflow check mask

2013-10-11 16:50:00 +02:00

qcow2-cluster.c

qcow2: fix possible corruption when reading multiple clusters

2013-11-14 13:09:07 +01:00

qcow2-refcount.c

qcow2: Make overlap check mask variable

2013-10-11 16:50:00 +02:00

qcow2-snapshot.c

qcow2: Use negated overflow check mask

2013-10-11 16:50:00 +02:00

qcow2.c

block: Use BDRV_O_NO_BACKING where appropriate

2014-06-25 16:33:46 -05:00

qcow2.h

qcow2: Add more overlap check bitmask macros

2013-10-11 16:50:00 +02:00

qcow.c

block: Error parameter for create functions

2013-09-12 10:12:48 +02:00

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: Error parameter for create functions

2013-09-12 10:12:48 +02:00

qed.h

block: qed - use QEMU_PACKED for on-disk structures

2013-09-25 20:51:15 +02:00

raw_bsd.c

block: Avoid unecessary drv->bdrv_getlength() calls

2013-10-29 13:10:26 +01:00

raw-aio.h

block: make discard asynchronous

2013-01-15 10:03:47 +01:00

raw-posix.c

block: Print its file name if backing file opening failed

2013-11-14 13:09:06 +01:00

raw-win32.c

block: Print its file name if backing file opening failed

2013-11-14 13:09:06 +01:00

rbd.c

rbd: avoid qemu_rbd_snap_list() memory leaks

2013-09-25 16:22:00 +02:00

sheepdog.c

sheepdog: check simultaneous create in resend_aioreq

2013-10-30 12:22:24 +01:00

snapshot.c

bdrv: Use "Error" for opening images

2013-09-12 10:12:47 +02:00

ssh.c

bdrv: Use "Error" for creating images

2013-09-12 10:12:48 +02:00

stream.c

qapi: make use of new BlockJobType

2013-10-11 10:52:54 +02:00

vdi.c

block: vdi - use QEMU_PACKED for on-disk structures

2013-09-25 20:51:05 +02:00

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 - add log write support

2013-11-07 13:58:59 +01:00

vhdx.c

block: vhdx - add .bdrv_create() support

2013-11-07 13:58:59 +01:00

vhdx.h

block: vhdx - add .bdrv_create() support

2013-11-07 13:58:59 +01:00

vmdk.c

block: Use BDRV_O_NO_BACKING where appropriate

2014-06-25 16:33:46 -05:00

vpc.c

block/vpc: fix virtual size for images created with disk2vhd

2013-11-07 13:58:58 +01:00

vvfat.c

block: Error parameter for create functions

2013-09-12 10:12:48 +02:00

win32-aio.c

win32-aio: drop win32_aio_flush_cb()

2013-08-22 22:05:04 +02:00