qemu-e2k/include/block
Vladimir Sementsov-Ogievskiy a5215b8fdf block/io: use int64_t bytes in copy_range
We are generally moving to int64_t for both offset and bytes parameters
on all io paths.

Main motivation is realization of 64-bit write_zeroes operation for
fast zeroing large disk chunks, up to the whole disk.

We chose signed type, to be consistent with off_t (which is signed) and
with possibility for signed return type (where negative value means
error).

So, convert now copy_range parameters which are already 64bit to signed
type.

It's safe as we don't work with requests overflowing BDRV_MAX_LENGTH
(which is less than INT64_MAX), and do check the requests in
bdrv_co_copy_range_internal() (by bdrv_check_request32(), which calls
bdrv_check_request()).

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201211183934.169161-17-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2021-02-03 08:17:12 -06:00
..
accounting.h
aio_task.h
aio-wait.h qemu/atomic.h: rename atomic_ to qatomic_ 2020-09-23 16:07:44 +01:00
aio.h util/async: Add aio_co_reschedule_self() 2020-10-09 07:08:20 +02:00
block_backup.h
block_int.h block/io: use int64_t bytes in copy_range 2021-02-03 08:17:12 -06:00
block-copy.h block/block-copy: drop unused argument of block_copy() 2021-01-26 14:36:37 +01:00
block-hmp-cmds.h monitor/hmp: move hmp_info_block* to block-hmp-cmds.c 2020-03-09 18:20:21 +00:00
block.h block/io: use int64_t bytes in copy_range 2021-02-03 08:17:12 -06:00
blockjob_int.h blockjob: add set_speed to BlockJobDriver 2021-01-26 14:36:37 +01:00
blockjob.h
dirty-bitmap.h block/dirty-bitmap: add bdrv_has_named_bitmaps helper 2020-05-28 13:15:22 -05:00
export.h block/export: Move blk to BlockExport 2020-10-02 15:46:40 +02:00
fuse.h fuse: Allow exporting BDSs via FUSE 2020-12-11 17:52:39 +01:00
nbd.h nbd: Add new qemu:allocation-depth metadata context 2020-10-30 15:22:00 -05:00
nvme.h block/nvme: Introduce Completion Queue definitions 2020-11-03 19:06:21 +00:00
qapi.h
qdict.h
raw-aio.h
snapshot.h migration: introduce icount field for snapshots 2020-10-06 08:34:49 +02:00
thread-pool.h
throttle-groups.h block/throttle-groups: throttle_group_co_io_limits_intercept(): 64bit bytes 2021-02-03 08:14:00 -06:00
write-threshold.h