Stefan Hajnoczi ef72f76e58 qed: refuse unaligned zero writes with a backing file ... Zero writes have cluster granularity in QED. Therefore they can only be used to zero entire clusters. If the zero write request leaves sectors untouched, zeroing the entire cluster would obscure the backing file. Instead return -ENOTSUP, which is handled by block.c:bdrv_co_do_write_zeroes() and falls back to a regular write. The qemu-iotests 034 test cases covers this scenario. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>		2012-08-29 15:23:35 +02:00
..
blkdebug.c	blkdebug: optionally tie errors to a specific sector	2012-07-09 15:53:02 +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	allow qemu_iovec_from_buffer() to specify offset from which to start copying	2012-06-11 23:12:11 +04:00
dmg.c	block: take lock around bdrv_read implementations	2011-10-21 17:34:14 +02:00
iscsi.c	iscsi: fix races between task completion and abort	2012-08-20 15:58:47 +02:00
Makefile.objs	build: move block/ objects to nested Makefile.objs	2012-06-07 09:21:13 +02:00
nbd.c	cleanup qemu_co_sendv(), qemu_co_recvv() and friends	2012-06-11 23:12:11 +04:00
parallels.c	block: take lock around bdrv_read implementations	2011-10-21 17:34:14 +02:00
qcow.c	change qemu_iovec_to_buf() to match other to,from_buf functions	2012-06-11 23:12:11 +04:00
qcow2-cache.c	qcow2: always operate caches in writeback mode	2012-06-15 14:03:43 +02:00
qcow2-cluster.c	qcow2: implement lazy refcounts	2012-08-06 22:39:14 +02:00
qcow2-refcount.c	qcow2: preserve free_byte_offset when qcow2_alloc_bytes() fails	2012-07-09 15:53:01 +02:00
qcow2-snapshot.c	qcow2: fix #ifdef'd qcow2_check_refcounts() callers	2012-07-09 15:53:01 +02:00
qcow2.c	block: add BLOCK_O_CHECK for qemu-img check	2012-08-10 10:25:12 +02:00
qcow2.h	qcow2: implement lazy refcounts	2012-08-06 22:39:14 +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	block: bdrv_aio_* do not return NULL	2011-12-15 12:40:07 +01:00
qed.c	qed: refuse unaligned zero writes with a backing file	2012-08-29 15:23:35 +02:00
qed.h	qed: mark image clean after repair succeeds	2012-08-10 10:25:12 +02:00
raw-posix-aio.h	prepare for future GPLv2+ relicensing	2012-01-13 10:55:56 -06:00
raw-posix.c	block: Convert close calls to qemu_close	2012-08-15 10:48:57 +02:00
raw-win32.c	block: Convert close calls to qemu_close	2012-08-15 10:48:57 +02:00
raw.c	raw: hook into blkdebug	2012-07-09 15:53:02 +02:00
rbd.c	Merge remote-tracking branch 'mjt/mjt-iov2' into staging	2012-07-09 12:35:06 -05:00
sheepdog.c	sheepdog: don't leak socket file descriptor upon connection failure	2012-08-22 10:47:14 -05:00
stream.c	stream: move rate limiting to a separate header file	2012-06-15 14:03:42 +02:00
vdi.c	block: Convert open calls to qemu_open	2012-08-15 10:48:57 +02:00
vmdk.c	vmdk: Read footer for streamOptimized images	2012-08-17 13:27:02 +02:00
vpc.c	block: Convert close calls to qemu_close	2012-08-15 10:48:57 +02:00
vvfat.c	block: Convert close calls to qemu_close	2012-08-15 10:48:57 +02:00