Stefan Hajnoczi 0e71be1932 qed: add .bdrv_co_write_zeroes() support ... Zero writes are a dedicated interface for writing regions of zeroes into the image file. If clusters are not yet allocated it is possible to use an efficient metadata representation which keeps the image file compact and does not store individual zero bytes. Implementing this for the QED image format is fairly straightforward. The only issue is that when a zero write touches an existing cluster we have to allocate a bounce buffer and perform a regular write. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>		2012-02-09 16:17:50 +01:00
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blkdebug.c	block: replace unchecked strdup/malloc/calloc with glib	2012-01-26 11:39:03 +01:00
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/cow: Return real error code	2011-12-15 12:40:33 +01:00
curl.c	block: qemu_aio_get does not return NULL	2011-12-15 12:40:08 +01:00
dmg.c	block: take lock around bdrv_read implementations	2011-10-21 17:34:14 +02:00
iscsi.c	iSCSI block driver	2011-10-28 19:25:48 +02:00
nbd.c	nbd: add support for NBD_CMD_TRIM	2011-12-22 11:53:57 +01:00
parallels.c	block: take lock around bdrv_read implementations	2011-10-21 17:34:14 +02:00
qcow2-cache.c	Use glib memory allocation and free functions	2011-08-20 23:01:08 -05:00
qcow2-cluster.c	qcow2: avoid reentrant bdrv_read() in copy_sectors()	2011-12-05 14:49:47 +01:00
qcow2-refcount.c	qcow2: Fix order of refcount updates in qcow2_snapshot_goto	2011-12-05 14:51:36 +01:00
qcow2-snapshot.c	qcow2: Allow >4 GB VM state	2011-12-15 12:40:33 +01:00
qcow2.c	block/qcow2.c: call qcow2_free_snapshots in the function of qcow2_close	2011-12-15 12:40:08 +01:00
qcow2.h	qcow2: Allow >4 GB VM state	2011-12-15 12:40:33 +01:00
qcow.c	qcow: Use bdrv functions to replace file operation	2012-01-26 14:49:18 +01:00
qed-check.c	Use glib memory allocation and free functions	2011-08-20 23:01:08 -05:00
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	Use glib memory allocation and free functions	2011-08-20 23:01:08 -05:00
qed-table.c	block: bdrv_aio_* do not return NULL	2011-12-15 12:40:07 +01:00
qed.c	qed: add .bdrv_co_write_zeroes() support	2012-02-09 16:17:50 +01:00
qed.h	qed: add .bdrv_co_write_zeroes() support	2012-02-09 16:17:50 +01:00
raw-posix-aio.h	prepare for future GPLv2+ relicensing	2012-01-13 10:55:56 -06:00
raw-posix.c	fix spelling in block sub directory	2011-12-02 10:50:57 +00:00
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: Rename bdrv_co_flush to bdrv_co_flush_to_disk	2011-11-11 14:02:59 +01:00
rbd.c	rbd: wire up snapshot removal and rollback functionality	2012-01-26 11:39:03 +01:00
sheepdog.c	prepare for future GPLv2+ relicensing	2012-01-13 10:55:56 -06:00
stream.c	block: add support for partial streaming	2012-01-26 14:49:18 +01:00
vdi.c	block/vdi: Zero unused parts when allocating a new block (fix #919242)	2012-01-26 14:49:18 +01:00
vmdk.c	block: convert qcow2, qcow2, and vmdk to .bdrv_co_is_allocated()	2011-12-05 14:51:37 +01:00
vpc.c	vpc: Add missing error handling in alloc_block	2011-11-23 17:04:06 +01:00
vvfat.c	vvfat: avoid leaking file descriptor in commit_one_file()	2012-01-13 10:36:59 +00:00