OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity
cd0c0db0aa
qemu-e2k/block
History
Stefan Hajnoczi cd0c0db0aa block/file-posix: set up Linux AIO and io_uring in the current thread 
The file-posix block driver currently only sets up Linux AIO and
io_uring in the BDS's AioContext. In the multi-queue block layer we must
be able to submit I/O requests in AioContexts that do not have Linux AIO
and io_uring set up yet since any thread can call into the block driver.

Set up Linux AIO and io_uring for the current AioContext during request
submission. We lose the ability to return an error from
.bdrv_file_open() when Linux AIO and io_uring setup fails (e.g. due to
resource limits). Instead the user only gets warnings and we fall back
to aio=threads. This is still better than a fatal error after startup.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230914140101.1065008-2-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2023-12-21 22:49:27 +01:00
..
export export/vhost-user-blk: Fix consecutive drains 2023-11-28 14:56:32 +01:00
monitor block: Mark bdrv_skip_implicit_filters() and callers GRAPH_RDLOCK 2023-11-07 19:14:19 +01:00
accounting.c
aio_task.c
amend.c block: Mark BlockDriver callbacks for amend job GRAPH_RDLOCK 2023-05-10 14:16:54 +02:00
backup.c block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +01:00
blkdebug.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
blkio.c util/defer-call: move defer_call() to util/ 2023-10-31 15:41:42 +01:00
blklogwrites.c block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +01:00
blkreplay.c block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
blkverify.c block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +01:00
block-backend.c block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +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-ram-registrar.c
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 block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +01:00
copy-before-write.c block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +01:00
copy-before-write.h
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
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
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 block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +01:00
io_uring.c virtio: use defer_call() in virtio_irqfd_notify() 2023-10-31 15:42:14 +01:00
io.c block: Add missing GRAPH_RDLOCK annotations 2023-11-08 17:56:17 +01:00
iscsi-opts.c
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 util/defer-call: move defer_call() to util/ 2023-10-31 15:41:42 +01:00
mirror.c block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +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
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
qapi-sysemu.c block: Fix locking in media change monitor commands 2023-10-31 13:51:28 +01:00
qapi.c block: Mark bdrv_refresh_filename() and callers GRAPH_RDLOCK 2023-10-12 16:31:33 +02:00
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 block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +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
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 block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +01:00
raw-format.c block: Protect bs->file with graph_lock 2023-11-08 17:56:18 +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: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +01:00
reqlist.c
snapshot-access.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
snapshot.c block: Fix deadlocks in bdrv_graph_wrunlock() 2023-11-21 12:45:21 +01:00
ssh.c aio: remove aio_disable_external() API 2023-05-30 17:37:26 +02:00
stream.c stream: Fix AioContext locking during bdrv_graph_wrlock() 2023-11-21 12:45:21 +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
vdi.c block: Take graph lock for most of .bdrv_open 2023-11-08 17:56:18 +01:00
vhdx-endian.c
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 vmdk: Don't corrupt desc file in vmdk_write_cid 2023-11-28 14:56:32 +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