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Kevin Wolf 10b2393e5e blkio: Respect memory-alignment for bounce buffer allocations 
blkio_alloc_mem_region() requires that the requested buffer size is a
multiple of the memory-alignment property. If it isn't, the allocation
fails with a return value of -EINVAL.

Fix the call in blkio_resize_bounce_pool() to make sure the requested
size is properly aligned.

I observed this problem with vhost-vdpa, which requires page aligned
memory. As the virtio-blk device behind it still had 512 byte blocks, we
got bs->bl.request_alignment = 512, but actually any request that needed
a bounce buffer and was not aligned to 4k would fail without this fix.

Suggested-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20240131173140.42398-1-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-02-07 15:26:04 +01:00
..
export
block: remove outdated AioContext locking comments
2023-12-21 22:49:27 +01:00
monitor
stream: Allow users to request only format driver names in backing file format
2024-01-26 11:16:58 +01:00
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: Mark BlockDriver callbacks for amend job GRAPH_RDLOCK
2023-05-10 14:16:54 +02:00
backup.c
graph-lock: remove AioContext locking
2023-12-21 22:49:27 +01:00
blkdebug.c
block: Take graph lock for most of .bdrv_open
2023-11-08 17:56:18 +01:00
blkio.c
blkio: Respect memory-alignment for bounce buffer allocations
2024-02-07 15:26:04 +01:00
blklogwrites.c
block/blklogwrites: Protect mutable driver state with a mutex.
2024-01-26 11:16:58 +01:00
blkreplay.c
block: Protect bs->file with graph_lock
2023-11-08 17:56:18 +01:00
blkverify.c
graph-lock: remove AioContext locking
2023-12-21 22:49:27 +01:00
block-backend.c
block-backend: Allow concurrent context changes
2024-02-07 14:55:25 +01:00
block-copy.c
block: Mark bdrv_chain_contains() and callers GRAPH_RDLOCK
2023-11-07 19:14:19 +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
block: add BlockRAMRegistrar
2022-10-26 14:56:42 -04:00
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
commit: Allow users to request only format driver names in backing file format
2024-01-26 11:16:58 +01:00
copy-before-write.c
block: remove AioContext locking
2023-12-21 22:49:27 +01:00
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: Take graph lock for most of .bdrv_open
2023-11-08 17:56:18 +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
nbd: Mark nbd_co_do_establish_connection() and callers GRAPH_RDLOCK
2023-05-10 14:16:53 +02:00
create.c
block: Call .bdrv_co_create(_opts) unlocked
2023-05-19 19:12:12 +02:00
crypto.c
block: Protect bs->file with graph_lock
2023-11-08 17:56:18 +01:00
crypto.h
nomaintainer: Fix Lesser GPL version number
2020-11-15 17:04:40 +01:00
curl.c
block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK
2023-10-12 16:31:33 +02:00
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
block/file-posix: set up Linux AIO and io_uring in the current thread
2023-12-21 22:49:27 +01:00
file-win32.c
thread-pool: avoid passing the pool parameter every time
2023-04-25 13:17:28 +02:00
filter-compress.c
block: Take graph lock for most of .bdrv_open
2023-11-08 17:56:18 +01:00
gluster.c
block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK
2023-10-12 16:31:33 +02:00
graph-lock.c
graph-lock: remove AioContext locking
2023-12-21 22:49:27 +01:00
io_uring.c
block/io_uring: improve error message when init fails
2024-01-30 16:13:28 -05:00
io.c
block/io: clear BDRV_BLOCK_RECURSE flag after recursing in bdrv_co_block_status
2024-01-22 11:00:12 -05:00
iscsi-opts.c
modules: add block module annotations
2021-07-09 18:20:27 +02:00
iscsi.c
block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK
2023-10-12 16:31:33 +02:00
linux-aio.c
virtio: use defer_call() in virtio_irqfd_notify()
2023-10-31 15:42:14 +01:00
meson.build
configure, meson: rename targetos to host_os
2023-12-31 09:11:29 +01:00
mirror.c
block: remove AioContext locking
2023-12-21 22:49:27 +01:00
nbd.c
block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK
2023-10-12 16:31:33 +02:00
nfs.c
block: Mark bdrv_refresh_filename() and callers GRAPH_RDLOCK
2023-10-12 16:31:33 +02:00
null.c
block: Convert bdrv_get_allocated_file_size() to co_wrapper
2023-02-01 16:52:32 +01:00
nvme.c
block/nvme: nvme_process_completion() fix bound for cid
2023-11-06 15:00:28 +00:00
parallels-ext.c
block: Protect bs->file with graph_lock
2023-11-08 17:56:18 +01:00
parallels.c
block: Protect bs->file with graph_lock
2023-11-08 17:56:18 +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-sysemu.c
block: remove AioContext locking
2023-12-21 22:49:27 +01:00
qapi.c
block: remove AioContext locking
2023-12-21 22:49:27 +01:00
qcow2-bitmap.c
qcow2: Take locks for accessing bs->file
2023-11-08 17:56:17 +01:00
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
qcow2: mark various functions as coroutine_fn and GRAPH_RDLOCK
2023-04-25 13:17:28 +02:00
qcow2-threads.c
thread-pool: avoid passing the pool parameter every time
2023-04-25 13:17:28 +02:00
qcow2.c
graph-lock: remove AioContext locking
2023-12-21 22:49:27 +01:00
qcow2.h
qcow2: Take locks for accessing bs->file
2023-11-08 17:56:17 +01:00
qcow.c
block: Take graph lock for most of .bdrv_open
2023-11-08 17:56:18 +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-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: Protect bs->file with graph_lock
2023-11-08 17:56:18 +01:00
qed.h
block: Protect bs->file with graph_lock
2023-11-08 17:56:18 +01:00
quorum.c
graph-lock: remove AioContext locking
2023-12-21 22:49:27 +01:00
raw-format.c
block: remove AioContext locking
2023-12-21 22:49:27 +01:00
rbd.c
block: Mark bdrv_apply_auto_read_only() and callers GRAPH_RDLOCK
2023-10-12 16:31:33 +02:00
replication.c
block: remove AioContext locking
2023-12-21 22:49:27 +01:00
reqlist.c
block/reqlist: add reqlist_wait_all()
2022-03-07 09:33:30 +01:00
snapshot-access.c
block: Take graph lock for most of .bdrv_open
2023-11-08 17:56:18 +01:00
snapshot.c
block: remove AioContext locking
2023-12-21 22:49:27 +01:00
ssh.c
aio: remove aio_disable_external() API
2023-05-30 17:37:26 +02:00
stream.c
stream: Allow users to request only format driver names in backing file format
2024-01-26 11:16:58 +01:00
throttle-groups.c
block: mark mixed functions that can suspend
2023-09-26 18:09:08 +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
block: Take graph lock for most of .bdrv_open
2023-11-08 17:56:18 +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
vhdx: Take locks for accessing bs->file
2023-11-08 17:56:18 +01:00
vhdx.h
vhdx: Take locks for accessing bs->file
2023-11-08 17:56:18 +01:00
vmdk.c
graph-lock: remove AioContext locking
2023-12-21 22:49:27 +01:00
vpc.c
block: Take graph lock for most of .bdrv_open
2023-11-08 17:56:18 +01:00
vvfat.c
cpr: relax blockdev migration blockers
2023-11-01 16:13:59 +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