Eric Blake a604fa2ba5 block: Document supported flags during bdrv_aligned_preadv() ... We don't pass any flags on to drivers to handle. Tighten an assert to explain why we pass 0 to bdrv_driver_preadv(), and add some comments on things to be aware of if we want to turn on per-BDS BDRV_REQ_FUA support during reads in the future. Also, document that we may want to consider using unmap during copy-on-read operations where the read is all zeroes. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>		2016-07-05 16:46:24 +02:00
..
accounting.c	block: Clean up includes	2016-01-20 13:36:23 +01:00
archipelago.c	coccinelle: Remove unnecessary variables for function return value	2016-06-20 16:38:13 +02:00
backup.c	blockjob: assert(cb) when create job	2016-06-28 23:08:13 -04:00
blkdebug.c	util: move declarations out of qemu-common.h	2016-03-22 22:20:17 +01:00
blkreplay.c	blkreplay: Convert to bdrv_co_pwrite_zeroes()	2016-06-08 10:21:08 +02:00
blkverify.c	block: Propagate AioContext change to all children	2016-05-19 16:45:31 +02:00
block-backend.c	block: Make blk_co_preadv/pwritev() public	2016-05-25 19:04:21 +02:00
bochs.c	qemu-common: stop including qemu/bswap.h from qemu-common.h	2016-05-19 16:42:28 +02:00
cloop.c	qemu-common: stop including qemu/bswap.h from qemu-common.h	2016-05-19 16:42:28 +02:00
commit.c	block: Create the commit block job before reopening any image	2016-06-16 15:20:37 +02:00
crypto.c	Block layer patches	2016-05-12 16:33:40 +01:00
curl.c	block: always compile-check debug prints	2016-05-12 15:22:08 +02:00
dirty-bitmap.c	include/qemu/osdep.h: Don't include qapi/error.h	2016-03-22 22:20:15 +01:00
dmg.c	all: Remove unnecessary glib.h includes	2016-06-07 18:19:24 +03:00
gluster.c	block/gluster: add support for selecting debug logging level	2016-06-28 22:52:45 -04:00
io.c	block: Document supported flags during bdrv_aligned_preadv()	2016-07-05 16:46:24 +02:00
iscsi.c	iscsi: fix assertion in is_sector_request_lun_aligned	2016-06-29 14:03:47 +02:00
linux-aio.c	linux-aio: Cancel BH if not needed	2016-06-16 15:19:55 +02:00
Makefile.objs	replay: introduce block devices record/replay	2016-03-30 12:15:57 +02:00
mirror.c	mirror: fix misleading comments	2016-06-28 23:08:25 -04:00
nbd-client.c	nbd: Simplify client FUA handling	2016-05-12 15:22:09 +02:00
nbd-client.h	nbd: Simplify client FUA handling	2016-05-12 15:22:09 +02:00
nbd.c	nbd: Simplify client FUA handling	2016-05-12 15:22:09 +02:00
nfs.c	block/nfs: add support for libnfs pagecache	2016-06-28 22:52:45 -04:00
null.c	block/null: Implement bdrv_refresh_filename()	2016-06-16 15:20:37 +02:00
parallels.c	block: Switch bdrv_write_zeroes() to byte interface	2016-06-08 10:21:08 +02:00
qapi.c	block: Don't return throttling info in query-named-block-nodes	2016-05-19 16:45:31 +02:00
qcow2-cache.c	os-posix: include sys/mman.h	2016-06-16 18:39:03 +02:00
qcow2-cluster.c	coccinelle: Remove unnecessary variables for function return value	2016-06-20 16:38:13 +02:00
qcow2-refcount.c	coccinelle: Remove unnecessary variables for function return value	2016-06-20 16:38:13 +02:00
qcow2-snapshot.c	qemu-common: stop including qemu/bswap.h from qemu-common.h	2016-05-19 16:42:28 +02:00
qcow2.c	error: Remove NULL checks on error_propagate() calls	2016-06-20 16:38:13 +02:00
qcow2.h	qcow2: Implement .bdrv_co_pwritev()	2016-06-16 15:19:55 +02:00
qcow.c	block: drop support for using qcow[2] encryption with system emulators	2016-06-16 15:19:55 +02:00
qed-check.c	qed: Use DIV_ROUND_UP	2016-06-07 18:19:24 +03:00
qed-cluster.c	block: Clean up includes	2016-01-20 13:36:23 +01:00
qed-gencb.c	block: Clean up includes	2016-01-20 13:36:23 +01:00
qed-l2-cache.c	block: Clean up includes	2016-01-20 13:36:23 +01:00
qed-table.c	qemu-common: stop including qemu/bswap.h from qemu-common.h	2016-05-19 16:42:28 +02:00
qed.c	qed: Convert to bdrv_co_pwrite_zeroes()	2016-06-08 10:21:08 +02:00
qed.h	util: move declarations out of qemu-common.h	2016-03-22 22:20:17 +01:00
quorum.c	error: Remove NULL checks on error_propagate() calls	2016-06-20 16:38:13 +02:00
raw_bsd.c	coccinelle: Remove unnecessary variables for function return value	2016-06-20 16:38:13 +02:00
raw-aio.h	raw-posix: Implement .bdrv_co_preadv/pwritev	2016-06-16 15:19:55 +02:00
raw-posix.c	coccinelle: Remove unnecessary variables for function return value	2016-06-20 16:38:13 +02:00
raw-win32.c	util: move declarations out of qemu-common.h	2016-03-22 22:20:17 +01:00
rbd.c	coccinelle: Remove unnecessary variables for function return value	2016-06-20 16:38:13 +02:00
sheepdog.c	block: Make .bdrv_load_vmstate() vectored	2016-06-16 15:19:55 +02:00
snapshot.c	error: Remove NULL checks on error_propagate() calls	2016-06-20 16:38:13 +02:00
ssh.c	include/qemu/osdep.h: Don't include qapi/error.h	2016-03-22 22:20:15 +01:00
stream.c	stream: Use BlockBackend for I/O	2016-05-25 19:04:21 +02:00
throttle-groups.c	block: Move I/O throttling configuration functions to BlockBackend	2016-05-19 16:45:30 +02:00
trace-events	trace: split out trace events for block/ directory	2016-06-20 17:22:14 +01:00
vdi.c	qemu-common: stop including qemu/bswap.h from qemu-common.h	2016-05-19 16:42:28 +02:00
vhdx-endian.c	qemu-common: stop including qemu/bswap.h from qemu-common.h	2016-05-19 16:42:28 +02:00
vhdx-log.c	qemu-common: stop including qemu/bswap.h from qemu-common.h	2016-05-19 16:42:28 +02:00
vhdx.c	all: Remove unnecessary glib.h includes	2016-06-07 18:19:24 +03:00
vhdx.h	block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec	2014-12-12 15:42:22 +00:00
vmdk.c	coccinelle: Remove unnecessary variables for function return value	2016-06-20 16:38:13 +02:00
vpc.c	qemu-common: stop including qemu/bswap.h from qemu-common.h	2016-05-19 16:42:28 +02:00
vvfat.c	coccinelle: Remove unnecessary variables for function return value	2016-06-20 16:38:13 +02:00
win32-aio.c	block: Clean up includes	2016-01-20 13:36:23 +01:00
write-threshold.c	block: Clean up includes	2016-01-20 13:36:23 +01:00