qemu/block
Alberto Faria e56b0c6631 block/blkio: Set BlockDriver::has_variable_length to false
Setting it to true can cause the device size to be queried from libblkio
in otherwise fast paths, degrading performance. Set it to false and
require users to refresh the device size explicitly instead.

Fixes: 4c8f4fda05 ("block/blkio: Tolerate device size changes")
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Alberto Faria <afaria@redhat.com>
Message-Id: <20221108144433.1334074-1-afaria@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-11-10 14:52:36 +01:00
..
export block: remove bdrv_try_set_aio_context and replace it with bdrv_try_change_aio_context 2022-10-27 20:14:11 +02:00
monitor monitor: add missing coroutine_fn annotation 2022-10-27 20:14:11 +02:00
accounting.c block: add missed block_acct_setup with new block device init procedure 2022-09-30 18:42:34 +02:00
aio_task.c block/aio_task: assert max_busy_tasks is greater than 0 2021-10-05 18:56:41 +02:00
amend.c block/amend: Keep strong reference to BDS 2022-03-04 18:18:26 +01:00
backup.c backup: remove incorrect coroutine_fn annotation 2022-10-27 20:14:11 +02:00
blkdebug.c blkdebug: add missing coroutine_fn annotation for indirect-called functions 2022-10-27 20:14:11 +02:00
blkio.c block/blkio: Set BlockDriver::has_variable_length to false 2022-11-10 14:52:36 +01:00
blklogwrites.c block/blklogwrites: don't care to remove bs->file child on failure 2022-10-27 20:14:11 +02:00
blkreplay.c block: introduce bdrv_open_file_child() helper 2022-10-27 20:14:11 +02:00
blkverify.c Block layer patches 2022-10-30 15:15:12 -04:00
block-backend.c Block layer patches 2022-10-30 15:15:12 -04:00
block-copy.c block/block-copy: block_copy(): add timeout_ns parameter 2022-06-29 10:56:12 +03:00
block-gen.h scripts: add block-coroutine-wrapper.py 2020-10-05 10:59:06 +01:00
block-ram-registrar.c block: add BlockRAMRegistrar 2022-10-26 14:56:42 -04:00
bochs.c block: introduce bdrv_open_file_child() helper 2022-10-27 20:14:11 +02:00
cloop.c block: introduce bdrv_open_file_child() helper 2022-10-27 20:14:11 +02:00
commit.c commit: switch to *_co_* functions 2022-10-27 20:14:11 +02:00
copy-before-write.c block: introduce bdrv_open_file_child() helper 2022-10-27 20:14:11 +02:00
copy-before-write.h block/copy-before-write.h: global state API + assertions 2022-03-04 18:18:25 +01:00
copy-on-read.c block: introduce bdrv_open_file_child() helper 2022-10-27 20:14:11 +02:00
copy-on-read.h Clean up ill-advised or unusual header guards 2022-05-11 16:50:01 +02:00
coroutines.h block: Remove remaining unused symbols in coroutines.h 2022-07-12 12:14:56 +02:00
create.c block_int-common.h: assertions in the callers of BlockDriver function pointers 2022-03-04 18:18:25 +01:00
crypto.c Block layer patches 2022-10-30 15:15:12 -04:00
crypto.h nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
curl.c curl: add missing coroutine_fn annotations 2022-10-07 12:11:41 +02:00
dirty-bitmap.c block: simplify handling of try to merge different sized bitmaps 2022-06-24 17:07:06 +02:00
dmg-bz2.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
dmg-lzfse.c block: Remove unused include 2020-11-09 15:44:21 +01:00
dmg.c dmg: warn when opening dmg images containing blocks of unknown type 2022-11-06 09:48:50 +01:00
dmg.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
file-posix.c block: add BDRV_REQ_REGISTERED_BUF request flag 2022-10-26 14:56:42 -04:00
file-win32.c block: use int64_t instead of uint64_t in driver write handlers 2021-09-29 13:46:31 -05:00
filter-compress.c block: introduce bdrv_open_file_child() helper 2022-10-27 20:14:11 +02:00
gluster.c block: add BDRV_REQ_REGISTERED_BUF request flag 2022-10-26 14:56:42 -04:00
io.c Block layer patches 2022-10-30 15:15:12 -04:00
io_uring.c block/io_uring: revert "Use io_uring_register_ring_fd() to skip fd operations" 2022-10-27 20:14:11 +02:00
iscsi-opts.c modules: add block module annotations 2021-07-09 18:20:27 +02:00
iscsi.c iscsi: add missing coroutine_fn annotations 2022-10-07 12:11:40 +02:00
linux-aio.c misc: fix commonly doubled up words 2022-08-01 11:58:02 +02:00
meson.build block: add BlockRAMRegistrar 2022-10-26 14:56:42 -04:00
mirror.c block/mirror: Fix NULL s->job in active writes 2022-11-10 13:33:55 +01:00
nbd.c block: add BDRV_REQ_REGISTERED_BUF request flag 2022-10-26 14:56:42 -04:00
nfs.c block/nfs: Fix 32-bit Windows build 2022-10-27 20:14:11 +02:00
null.c block: use int64_t instead of uint64_t in driver write handlers 2021-09-29 13:46:31 -05:00
nvme.c block: return errors from bdrv_register_buf() 2022-10-26 14:56:42 -04:00
parallels-ext.c block: Change bdrv_{pread,pwrite,pwrite_sync}() param order 2022-07-12 12:14:55 +02:00
parallels.c Block layer patches 2022-10-30 15:15:12 -04:00
parallels.h parallels: support bitmap extension for read-only mode 2021-03-08 14:56:55 +01:00
preallocate.c block: introduce bdrv_open_file_child() helper 2022-10-27 20:14:11 +02:00
progress_meter.c progressmeter: protect with a mutex 2021-06-25 14:24:24 +03:00
qapi-sysemu.c block: add 'force' parameter to 'blockdev-change-medium' command 2022-04-25 12:02:36 +02:00
qapi.c block: use GDateTime for formatting timestamp when dumping snapshot info 2021-06-14 13:28:50 +01:00
qcow.c Block layer patches 2022-10-30 15:15:12 -04:00
qcow2-bitmap.c qcow2: manually add more coroutine_fn annotations 2022-10-27 20:14:11 +02:00
qcow2-cache.c block: Change bdrv_{pread,pwrite,pwrite_sync}() param order 2022-07-12 12:14:55 +02:00
qcow2-cluster.c qcow2: switch to *_co_* functions 2022-10-27 20:14:11 +02:00
qcow2-refcount.c qcow2: switch to *_co_* functions 2022-10-27 20:14:11 +02:00
qcow2-snapshot.c qcow2: switch to *_co_* functions 2022-10-27 20:14:11 +02:00
qcow2-threads.c qcow2: add zstd cluster compression 2020-05-13 14:20:31 +02:00
qcow2.c qcow2: switch to *_co_* functions 2022-10-27 20:14:11 +02:00
qcow2.h qcow2: manually add more coroutine_fn annotations 2022-10-27 20:14:11 +02:00
qed-check.c block/qed: add missed coroutine_fn markers 2019-04-30 15:29:00 +02:00
qed-cluster.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed-l2-cache.c osdep: Move memalign-related functions to their own header 2022-03-07 13:16:49 +00:00
qed-table.c qed: switch to *_co_* functions 2022-10-27 20:14:11 +02:00
qed.c Block layer patches 2022-10-30 15:15:12 -04:00
qed.h qed: Simplify backing reads 2020-07-06 10:34:14 +02:00
quorum.c quorum: Remove unnecessary forward declaration 2022-10-07 12:11:41 +02:00
raw-format.c Block layer patches 2022-10-30 15:15:12 -04:00
rbd.c block/rbd: report a better error when namespace does not exist 2022-06-24 17:07:06 +02:00
replication.c Block layer patches 2022-10-30 15:15:12 -04:00
reqlist.c block/reqlist: add reqlist_wait_all() 2022-03-07 09:33:30 +01:00
snapshot-access.c block: Manipulate bs->file / bs->backing pointers in .attach/.detach 2022-10-27 20:14:11 +02:00
snapshot.c block/snapshot: drop indirection around bdrv_snapshot_fallback_ptr 2022-10-27 20:14:11 +02:00
ssh.c Block layer patches 2022-10-30 15:15:12 -04:00
stream.c block/stream: Drain subtree around graph change 2022-03-29 16:30:55 +02:00
throttle-groups.c block/throttle-groups: throttle_group_co_io_limits_intercept(): 64bit bytes 2021-02-03 08:14:00 -06:00
throttle.c block: introduce bdrv_open_file_child() helper 2022-10-27 20:14:11 +02:00
trace-events nbd: trace long NBD operations 2022-06-29 10:57:02 +03:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vdi.c vdi: switch to *_co_* functions 2022-10-27 20:14:11 +02:00
vhdx-endian.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
vhdx-log.c block: Change bdrv_{pread,pwrite,pwrite_sync}() param order 2022-07-12 12:14:55 +02:00
vhdx.c Block layer patches 2022-10-30 15:15:12 -04:00
vhdx.h block/vhdx: Use IEC binary prefixes for size constants 2019-04-30 15:29:00 +02:00
vmdk.c vmdk: switch to *_co_* functions 2022-10-27 20:14:11 +02:00
vpc.c block: introduce bdrv_open_file_child() helper 2022-10-27 20:14:11 +02:00
vvfat.c block/vvfat: Unify the mkdir() call 2022-10-31 20:37:58 +00:00
win32-aio.c osdep: Move memalign-related functions to their own header 2022-03-07 13:16:49 +00:00
write-threshold.c write-threshold: deal with includes 2021-05-14 16:14:10 +02:00