Stefan Hajnoczi be6a166fde block/io_uring: clarify that short reads can happen ... Jens Axboe has confirmed that short reads are rare but can happen: https://lore.kernel.org/io-uring/YsU%2FCGkl9ZXUI+Tj@stefanha-x1.localdomain/T/#m729963dc577d709b709c191922e98ec79d7eef54 The luring_resubmit_short_read() comment claimed they were only due to a specific io_uring bug that was fixed in Linux commit 9d93a3f5a0c ("io_uring: punt short reads to async context"), which is wrong. Dominique Martinet found that a btrfs bug also causes short reads. There may be more kernel code paths that result in short reads. Let's consider short reads fair game. Cc: Dominique Martinet <dominique.martinet@atmark-techno.com> Based-on: <20220630010137.2518851-1-dominique.martinet@atmark-techno.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Message-id: 20220706080341.1206476-1-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>		2022-07-07 09:04:15 +01:00
..
export	vduse-blk: Add name option	2022-06-24 17:07:06 +02:00
monitor	block: improve block_dirty_bitmap_merge(): don't allocate extra bitmap	2022-06-24 17:07:06 +02:00
accounting.c	block/accounting: Use lock guard macros	2020-12-11 17:52:39 +01:00
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	block: simplify handling of try to merge different sized bitmaps	2022-06-24 17:07:06 +02:00
blkdebug.c	block: use int64_t instead of int in driver discard handlers	2021-09-29 13:46:32 -05:00
blklogwrites.c	block: use int64_t instead of int in driver discard handlers	2021-09-29 13:46:32 -05:00
blkreplay.c	block: use int64_t instead of int in driver discard handlers	2021-09-29 13:46:32 -05:00
blkverify.c	Replace GCC_FMT_ATTR with G_GNUC_PRINTF	2022-03-22 14:40:51 +04:00
block-backend.c	block: Support passing NULL ops to blk_set_dev_ops()	2022-06-24 17:07:06 +02:00
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
bochs.c	block: use int64_t instead of uint64_t in driver read handlers	2021-09-29 13:46:31 -05:00
cloop.c	block: use int64_t instead of uint64_t in driver read handlers	2021-09-29 13:46:31 -05:00
commit.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
copy-before-write.c	block/copy-before-write: implement cbw-timeout option	2022-06-29 10:56:12 +03:00
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: use int64_t instead of int in driver discard handlers	2021-09-29 13:46:32 -05:00
copy-on-read.h	Clean up ill-advised or unusual header guards	2022-05-11 16:50:01 +02:00
coroutines.h	Clean up header guards that don't match their file name	2022-05-11 16:49:06 +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	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
crypto.h	nomaintainer: Fix Lesser GPL version number	2020-11-15 17:04:40 +01:00
curl.c	block/curl.c: Check error return from curl_easy_setopt()	2022-03-07 09:19:20 +01:00
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	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
dmg.h	Include qemu-common.h exactly where needed	2019-06-12 13:20:20 +02:00
file-posix.c	block: move fcntl_setfl()	2022-05-03 15:17:53 +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: use int64_t instead of int in driver discard handlers	2021-09-29 13:46:32 -05:00
gluster.c	block/gluster: correctly set max_pdiscard	2022-06-24 17:07:06 +02:00
io.c	block: drop unused bdrv_co_drain() API	2022-06-24 17:07:06 +02:00
io_uring.c	block/io_uring: clarify that short reads can happen	2022-07-07 09:04:15 +01:00
iscsi-opts.c	modules: add block module annotations	2021-07-09 18:20:27 +02:00
iscsi.c	include: move qemu_get_vm_name() to sysemu.h	2022-04-06 14:31:43 +02:00
linux-aio.c	linux-aio: explain why max batch is checked in laio_io_unplug()	2022-06-15 16:43:42 +01:00
meson.build	block: introduce snapshot-access block driver	2022-03-07 09:33:31 +01:00
mirror.c	block: use 'unsigned' for in_flight field on driver state	2022-06-29 10:57:02 +03:00
nbd.c	block: use 'unsigned' for in_flight field on driver state	2022-06-29 10:57:02 +03:00
nfs.c	aio-posix: split poll check from ready handler	2022-01-12 17:09:39 +00:00
null.c	block: use int64_t instead of uint64_t in driver write handlers	2021-09-29 13:46:31 -05:00
nvme.c	Replace qemu_real_host_page variables with inlined functions	2022-04-06 10:50:38 +02:00
parallels-ext.c	block: Fix misleading hexadecimal format	2022-03-24 10:38:42 +00:00
parallels.c	Replace qemu_real_host_page variables with inlined functions	2022-04-06 10:50:38 +02:00
parallels.h	parallels: support bitmap extension for read-only mode	2021-03-08 14:56:55 +01:00
preallocate.c	block: fix preallocate filter: don't do unaligned preallocate requests	2022-03-07 09:19:20 +01:00
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	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
qcow2-bitmap.c	nbd patches for 2021-03-09	2021-03-11 13:57:08 +00:00
qcow2-cache.c	Replace qemu_real_host_page variables with inlined functions	2022-04-06 10:50:38 +02:00
qcow2-cluster.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
qcow2-refcount.c	qcow2: Add errp to rebuild_refcount_structure()	2022-04-20 12:09:17 +02:00
qcow2-snapshot.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
qcow2-threads.c	qcow2: add zstd cluster compression	2020-05-13 14:20:31 +02:00
qcow2.c	qcow2: Do not reopen data_file in invalidate_cache	2022-05-04 15:55:23 +02:00
qcow2.h	Replace GCC_FMT_ATTR with G_GNUC_PRINTF	2022-03-22 14:40:51 +04:00
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	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
qed.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
qed.h	qed: Simplify backing reads	2020-07-06 10:34:14 +02:00
quorum.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
raw-format.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
rbd.c	block/rbd: report a better error when namespace does not exist	2022-06-24 17:07:06 +02:00
replication.c	job: @force parameter for job_cancel_sync()	2021-10-07 10:42:09 +02:00
reqlist.c	block/reqlist: add reqlist_wait_all()	2022-03-07 09:33:30 +01:00
snapshot-access.c	block: introduce snapshot-access block driver	2022-03-07 09:33:31 +01:00
snapshot.c	include/block/snapshot: global state API + assertions	2022-03-04 18:18:25 +01:00
ssh.c	Replace GCC_FMT_ATTR with G_GNUC_PRINTF	2022-03-22 14:40:51 +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: use int64_t instead of int in driver discard handlers	2021-09-29 13:46:32 -05:00
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	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
vhdx-endian.c	Include qemu-common.h exactly where needed	2019-06-12 13:20:20 +02:00
vhdx-log.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
vhdx.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
vhdx.h	block/vhdx: Use IEC binary prefixes for size constants	2019-04-30 15:29:00 +02:00
vmdk.c	block/vmdk: Fix reopening bs->file	2022-05-04 15:55:23 +02:00
vpc.c	osdep: Move memalign-related functions to their own header	2022-03-07 13:16:49 +00:00
vvfat.c	vvfat: Fix vvfat_write() for writes before the root directory	2022-01-14 12:03:16 +01:00
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