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ba142846b0
qemu/block
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Denis V. Lunev ba142846b0 qcow2: simplify logic in qcow2_co_write_zeroes 
Unaligned requests will occupy only one cluster. This is true since the
previous commit. Simplify the code taking this consideration into
account.

In other words, the caller is now buggy if it ever passes us an unaligned
request that crosses cluster boundaries (the only requests that can cross
boundaries will be aligned).

There are no other changes so far.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
CC: Eric Blake <eblake@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
Message-Id: <1463476543-3087-3-git-send-email-den@openvz.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-06-08 10:21:08 +02:00
..
accounting.c block: Clean up includes 2016-01-20 13:36:23 +01:00
archipelago.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
backup.c backup: Use BlockBackend for I/O 2016-05-25 19:04:21 +02:00
blkdebug.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
blkreplay.c replay: introduce block devices record/replay 2016-03-30 12:15:57 +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 commit: Use BlockBackend for I/O 2016-05-25 19:04:21 +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: prevent data loss after i/o error 2016-04-19 12:24:59 -04:00
io.c block: split write_zeroes always 2016-06-08 10:21:08 +02:00
iscsi.c block/iscsi: avoid potential overflow of acb->task->cdb 2016-05-29 09:11:11 +02:00
linux-aio.c linux-aio: make it more type safe 2016-05-12 15:22:07 +02:00
Makefile.objs replay: introduce block devices record/replay 2016-03-30 12:15:57 +02:00
mirror.c mirror: Use BlockBackend for I/O 2016-05-25 19:04:21 +02:00
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 missing #include "qemu/cutils.h" 2016-03-30 16:50:39 -04:00
null.c block/null-{co,aio}: Implement get_block_status() 2016-03-30 12:16:04 +02:00
parallels.c parallels: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
qapi.c block: Don't return throttling info in query-named-block-nodes 2016-05-19 16:45:31 +02:00
qcow2-cache.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qcow2-cluster.c qcow/qcow2: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
qcow2-refcount.c qcow/qcow2: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
qcow2-snapshot.c qemu-common: stop including qemu/bswap.h from qemu-common.h 2016-05-19 16:42:28 +02:00
qcow2.c qcow2: simplify logic in qcow2_co_write_zeroes 2016-06-08 10:21:08 +02:00
qcow2.h qcow2: Add function for refcount order amendment 2015-12-18 14:34:43 +01:00
qcow.c qcow/qcow2: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
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: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
qed.h util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
quorum.c block: Propagate AioContext change to all children 2016-05-19 16:45:31 +02:00
raw_bsd.c block: Honor BDRV_REQ_FUA during write_zeroes 2016-05-12 15:22:09 +02:00
raw-aio.h linux-aio: make it more type safe 2016-05-12 15:22:07 +02:00
raw-posix.c block: Honor BDRV_REQ_FUA during write_zeroes 2016-05-12 15:22:09 +02:00
raw-win32.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
rbd.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
sheepdog.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
snapshot.c block: Fix bdrv_next() memory leak 2016-05-25 19:04:10 +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
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 all: Remove unnecessary glib.h includes 2016-06-07 18:19:24 +03:00
vpc.c qemu-common: stop including qemu/bswap.h from qemu-common.h 2016-05-19 16:42:28 +02:00
vvfat.c block: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
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