Stefan Hajnoczi 4733cb0833 block/io: skip head/tail requests on EINVAL ... When guests send misaligned discard requests, the block layer breaks them up into a misaligned head, an aligned main body, and a misaligned tail. The file-posix block driver on Linux returns -EINVAL on misaligned discard requests. This causes bdrv_co_pdiscard() to fail and guests configured with werror=stop will pause. Add a special case for misaligned head/tail requests. Simply continue when EINVAL is encountered so that the aligned main body of the request can be completed and the guest is not paused. This is the best we can do when guest discard limits do not match the host discard limits. Fixes: https://issues.redhat.com/browse/RHEL-86032 Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Hanna Czenczek <hreitz@redhat.com> Message-ID: <20250417150528.76470-3-stefanha@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>		2025-04-25 16:42:06 +02:00
..
export	block/export: Add option to allow export of inactive nodes	2025-02-06 14:46:40 +01:00
monitor	nbd/server: Allow users to adjust handshake limit in QMP	2025-02-11 13:45:47 -06:00
accounting.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
aio_task.c	block: Remove unused aio_task_pool_empty	2024-09-30 10:53:18 +03:00
amend.c	block: Mark BlockDriver callbacks for amend job GRAPH_RDLOCK	2023-05-10 14:16:54 +02:00
backup.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
blkdebug.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
blkio.c	include/system: Move exec/memory.h to system/memory.h	2025-04-23 14:08:21 -07:00
blklogwrites.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
blkreplay.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
blkverify.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
block-backend.c	block: Remove unused blk_op_is_blocked()	2025-03-11 15:49:14 +01:00
block-copy.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
block-gen.h	block-coroutine-wrapper.py: support also basic return types	2022-12-15 16:07:43 +01:00
block-ram-registrar.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
bochs.c	block: Take graph lock for most of .bdrv_open	2023-11-08 17:56:18 +01:00
cloop.c	block: Take graph lock for most of .bdrv_open	2023-11-08 17:56:18 +01:00
commit.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
copy-before-write.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
copy-before-write.h	backup: add minimum cluster size to performance options	2024-09-30 10:53:08 +03:00
copy-on-read.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
copy-on-read.h	block: Mark bdrv_(un)freeze_backing_chain() and callers GRAPH_RDLOCK	2023-11-07 19:14:19 +01:00
coroutines.h	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
create.c	qemu/compiler: Absorb 'clang-tsa.h'	2025-03-06 14:21:25 +01:00
crypto.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
crypto.h	block: Support detached LUKS header creation using qemu-img	2024-02-09 12:50:37 +00:00
curl.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
dirty-bitmap.c	block: Mark bdrv_*_dirty_bitmap() and callers GRAPH_RDLOCK	2023-02-23 19:49:32 +01:00
dmg-bz2.c	Include qemu-common.h exactly where needed	2019-06-12 13:20:20 +02:00
dmg-lzfse.c	block/dmg: Ignore C99 prototype declaration mismatch from <lzfse.h>	2023-03-30 15:03:36 +02:00
dmg.c	block: Protect bs->file with graph_lock	2023-11-08 17:56:18 +01:00
dmg.h	block/dmg: Declare a type definition for DMG uncompress function	2023-04-24 13:53:44 -04:00
file-posix.c	file-posix: probe discard alignment on Linux block devices	2025-04-25 16:42:01 +02:00
file-win32.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
filter-compress.c	block: Take graph lock for most of .bdrv_open	2023-11-08 17:56:18 +01:00
gluster.c	cleanup: Drop pointless return at end of function	2025-04-24 09:33:42 +02:00
graph-lock.c	graph-lock: remove AioContext locking	2023-12-21 22:49:27 +01:00
io.c	block/io: skip head/tail requests on EINVAL	2025-04-25 16:42:06 +02:00
io_uring.c	file-posix: Support FUA writes	2025-03-13 17:44:55 +01:00
iscsi-opts.c	modules: add block module annotations	2021-07-09 18:20:27 +02:00
iscsi.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
linux-aio.c	file-posix: Support FUA writes	2025-03-13 17:44:55 +01:00
meson.build	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
mirror.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
nbd.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
nfs.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
null.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
nvme.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
parallels-ext.c	qapi/crypto: Rename QCryptoHashAlgorithm to *Algo, and drop prefix	2024-09-10 14:02:16 +02:00
parallels.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
parallels.h	block: Protect bs->file with graph_lock	2023-11-08 17:56:18 +01:00
preallocate.c	block: Protect bs->file with graph_lock	2023-11-08 17:56:18 +01:00
progress_meter.c	coroutine: Clean up superfluous inclusion of qemu/lockable.h	2023-01-19 10:18:28 +01:00
qapi-system.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
qapi.c	Block layer patches	2025-02-10 13:25:36 -05:00
qcow.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
qcow2-bitmap.c	block/qcow2-bitmap: Replace g_memdup() by g_memdup2()	2024-05-08 19:11:34 +02:00
qcow2-cache.c	qcow2: Mark qcow2_signal_corruption() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qcow2-cluster.c	qcow2: Take locks for accessing bs->file	2023-11-08 17:56:17 +01:00
qcow2-refcount.c	qcow2: Mark qcow2_signal_corruption() and callers GRAPH_RDLOCK	2023-10-12 16:31:33 +02:00
qcow2-snapshot.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
qcow2-threads.c	thread-pool: avoid passing the pool parameter every time	2023-04-25 13:17:28 +02:00
qcow2.c	qcow2: Don't crash qemu-img info with missing crypto header	2025-04-08 12:13:17 +02:00
qcow2.h	qcow2: Take locks for accessing bs->file	2023-11-08 17:56:17 +01:00
qed-check.c	qed: mark more functions as coroutine_fns and GRAPH_RDLOCK	2023-06-28 09:46:20 +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	block: use bdrv_co_debug_event in coroutine context	2023-06-28 09:46:34 +02:00
qed.c	block/qed: fix use-after-free by nullifying timer pointer after free	2025-03-06 10:19:54 +08:00
qed.h	block: Protect bs->file with graph_lock	2023-11-08 17:56:18 +01:00
quorum.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
raw-format.c	raw-format: Fix error message for invalid offset/size	2024-10-22 17:52:49 +02:00
rbd.c	cleanup: Drop pointless return at end of function	2025-04-24 09:33:42 +02:00
replication.c	cleanup: Drop pointless return at end of function	2025-04-24 09:33:42 +02:00
reqlist.c	block/reqlist: allow adding overlapping requests	2024-09-30 10:53:18 +03:00
snapshot-access.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
snapshot.c	block: Zero block driver state before reopening	2025-03-11 15:49:14 +01:00
ssh.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
stream.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
throttle-groups.c	cleanup: Drop pointless return at end of function	2025-04-24 09:33:42 +02:00
throttle.c	block: Take graph lock for most of .bdrv_open	2023-11-08 17:56:18 +01:00
trace-events	nbd/client: Accept 64-bit block status chunks	2023-10-05 11:02:08 -05:00
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00
vdi.c	include: Rename sysemu/ -> system/	2024-12-20 17:44:56 +01:00
vhdx-endian.c	Include qemu-common.h exactly where needed	2019-06-12 13:20:20 +02:00
vhdx-log.c	vhdx: Take locks for accessing bs->file	2023-11-08 17:56:18 +01:00
vhdx.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
vhdx.h	vhdx: Take locks for accessing bs->file	2023-11-08 17:56:18 +01:00
vmdk.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
vpc.c	Block layer patches	2025-02-10 13:25:36 -05:00
vvfat.c	qapi: Move include/qapi/qmp/ to include/qobject/	2025-02-10 15:33:16 +01:00
win32-aio.c	aio: remove aio_disable_external() API	2023-05-30 17:37:26 +02:00
write-threshold.c	block: remove AioContext locking	2023-12-21 22:49:27 +01:00