Max Reitz 0c9b70d590 fuse: Allow exporting BDSs via FUSE ... block-export-add type=fuse allows mounting block graph nodes via FUSE on some existing regular file. That file should then appears like a raw disk image, and accesses to it result in accesses to the exported BDS. Right now, we only implement the necessary block export functions to set it up and shut it down. We do not implement any access functions, so accessing the mount point only results in errors. This will be addressed by a followup patch. We keep a hash table of exported mount points, because we want to be able to detect when users try to use a mount point twice. This is because we invoke stat() to check whether the given mount point is a regular file, but if that file is served by ourselves (because it is already used as a mount point), then this stat() would have to be served by ourselves, too, which is impossible to do while we (as the caller) are waiting for it to settle. Therefore, keep track of mount point paths to at least catch the most obvious instances of that problem. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20201027190600.192171-3-mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>		2020-12-11 17:52:39 +01:00
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export	fuse: Allow exporting BDSs via FUSE	2020-12-11 17:52:39 +01:00
monitor	block/export: Add block-export-del	2020-10-02 15:46:40 +02:00
accounting.c	block/accounting: Use lock guard macros	2020-12-11 17:52:39 +01:00
aio_task.c	block: introduce aio task pool	2019-10-10 10:56:17 +02:00
amend.c	block/amend: Check whether the node exists	2020-07-27 12:37:25 +02:00
backup-top.c	block: Inline bdrv_co_block_status_from_*()	2020-09-07 12:31:31 +02:00
backup-top.h	block: introduce backup-top filter driver	2019-10-10 10:56:18 +02:00
backup.c	backup: Deal with filters	2020-09-07 12:31:31 +02:00
blkdebug.c	block: Fix some code style problems, "foo* bar" should be "foo *bar"	2020-11-09 18:42:47 +01:00
blklogwrites.c	block: Inline bdrv_co_block_status_from_*()	2020-09-07 12:31:31 +02:00
blkreplay.c	block: Use bdrv_default_perms()	2020-05-18 19:05:25 +02:00
blkverify.c	error: Eliminate error_propagate() with Coccinelle, part 2	2020-07-10 15:18:08 +02:00
block-backend.c	qemu/atomic.h: rename atomic_ to qatomic_	2020-09-23 16:07:44 +01:00
block-copy.c	block-copy: Use CAF to find sync=top base	2020-09-07 12:31:31 +02:00
block-gen.h	scripts: add block-coroutine-wrapper.py	2020-10-05 10:59:06 +01:00
bochs.c	block: Use bdrv_default_perms()	2020-05-18 19:05:25 +02:00
cloop.c	block: Use bdrv_default_perms()	2020-05-18 19:05:25 +02:00
commit.c	block: Return depth level during bdrv_is_allocated_above	2020-10-30 15:21:23 -05:00
copy-on-read.c	block: Inline bdrv_co_block_status_from_*()	2020-09-07 12:31:31 +02:00
coroutines.h	block: Return depth level during bdrv_is_allocated_above	2020-10-30 15:21:23 -05:00
create.c	block/create: Do not abort if a block driver is not available	2019-09-13 12:18:37 +02:00
crypto.c	nomaintainer: Fix Lesser GPL version number	2020-11-15 17:04:40 +01:00
crypto.h	nomaintainer: Fix Lesser GPL version number	2020-11-15 17:04:40 +01:00
curl.c	block/curl: Use lock guard macros	2020-12-11 17:52:39 +01:00
dirty-bitmap.c	block/dirty-bitmap: add bdrv_has_named_bitmaps helper	2020-05-28 13:15:22 -05:00
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	block: Fix some code style problems, "foo* bar" should be "foo *bar"	2020-11-09 18:42:47 +01:00
dmg.h	Include qemu-common.h exactly where needed	2019-06-12 13:20:20 +02:00
file-posix.c	file-posix: allow -EBUSY errors during write zeros on raw block devices	2020-11-17 12:26:48 +01:00
file-win32.c	block/file: switch to use qemu_open/qemu_create for improved errors	2020-09-16 10:33:48 +01:00
filter-compress.c	block: Inline bdrv_co_block_status_from_*()	2020-09-07 12:31:31 +02:00
gluster.c	error: Reduce unnecessary error propagation	2020-07-10 15:18:08 +02:00
io.c	block: Return depth level during bdrv_is_allocated_above	2020-10-30 15:21:23 -05:00
io_uring.c	io_uring: do not use pointer after free	2020-11-17 12:26:48 +01:00
iscsi-opts.c	Include qemu/module.h where needed, drop it from qemu-common.h	2019-06-12 13:18:33 +02:00
iscsi.c	block/iscsi: Use lock guard macros	2020-12-11 17:52:39 +01:00
linux-aio.c	misc: Replace zero-length arrays with flexible array member (automatic)	2020-03-16 22:07:42 +01:00
meson.build	block/export: convert vhost-user-blk server to block export API	2020-10-23 13:42:16 +01:00
mirror.c	block: Return depth level during bdrv_is_allocated_above	2020-10-30 15:21:23 -05:00
nbd.c	nbd: Add 'qemu-nbd -A' to expose allocation depth	2020-10-30 15:22:00 -05:00
nfs.c	block: Fixes nfs compiling error on msys2/mingw	2020-11-09 15:44:21 +01:00
null.c	block/null: Implement bdrv_get_allocated_file_size	2020-09-07 12:31:31 +02:00
nvme.c	block/nvme: Fix nvme_submit_command() on big-endian host	2020-11-03 19:06:22 +00:00
parallels.c	error: Avoid error_propagate() after migrate_add_blocker()	2020-07-10 15:18:08 +02:00
parallels.h	Clean up includes	2018-02-09 05:05:11 +01:00
qapi-sysemu.c	block: Move system emulator QMP commands to block/qapi-sysemu.c	2020-03-06 17:15:38 +01:00
qapi.c	migration: introduce icount field for snapshots	2020-10-06 08:34:49 +02:00
qcow.c	block/qcow: remove runtime opts	2020-09-15 11:05:13 +02:00
qcow2-bitmap.c	qcow2: Use macros for the L1, refcount and bitmap table entry sizes	2020-09-15 11:05:12 +02:00
qcow2-cache.c	core: replace getpagesize() with qemu_real_host_page_size	2019-10-26 15:38:06 +02:00
qcow2-cluster.c	qcow2: Fix corruption on write_zeroes with MAY_UNMAP	2020-11-24 11:29:41 +01:00
qcow2-refcount.c	qcow2: Make qcow2_free_any_clusters() free only one cluster	2020-09-15 11:05:13 +02:00
qcow2-snapshot.c	migration: introduce icount field for snapshots	2020-10-06 08:34:49 +02:00
qcow2-threads.c	qcow2: add zstd cluster compression	2020-05-13 14:20:31 +02:00
qcow2.c	block: Fix some code style problems, "foo* bar" should be "foo *bar"	2020-11-09 18:42:47 +01:00
qcow2.h	block: Fix some code style problems, "foo* bar" should be "foo *bar"	2020-11-09 18:42:47 +01:00
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	qed: protect table cache with CoMutex	2017-07-17 11:34:11 +08:00
qed-table.c	block/qed: add missed coroutine_fn markers	2019-04-30 15:29:00 +02:00
qed.c	qapi: Smooth another visitor error checking pattern	2020-07-10 15:18:08 +02:00
qed.h	qed: Simplify backing reads	2020-07-06 10:34:14 +02:00
quorum.c	Tweak a few "Parameter 'NAME' expects THING" error message	2020-12-10 17:16:44 +01:00
raw-format.c	error: Eliminate error_propagate() with Coccinelle, part 2	2020-07-10 15:18:08 +02:00
rbd.c	block/rbd: add 'namespace' to qemu_rbd_strong_runtime_opts[]	2020-09-15 11:31:10 +02:00
replication.c	error: Reduce unnecessary error propagation	2020-07-10 15:18:08 +02:00
sheepdog.c	block: deprecate the sheepdog block driver	2020-10-15 16:06:28 +02:00
snapshot.c	block/snapshot: Fix fallback	2020-09-07 12:31:31 +02:00
ssh.c	qapi: Smooth another visitor error checking pattern	2020-07-10 15:18:08 +02:00
stream.c	block: Return depth level during bdrv_is_allocated_above	2020-10-30 15:21:23 -05:00
throttle-groups.c	block/throttle-groups: Use lock guard macros	2020-12-11 17:52:39 +01:00
throttle.c	qemu/atomic.h: rename atomic_ to qatomic_	2020-09-23 16:07:44 +01:00
trace-events	block/nvme: Use unsigned integer for queue counter/size	2020-11-03 19:06:21 +00:00
trace.h	trace: switch position of headers to what Meson requires	2020-08-21 06:18:24 -04:00
vdi.c	error: Avoid error_propagate() after migrate_add_blocker()	2020-07-10 15:18:08 +02:00
vhdx-endian.c	Include qemu-common.h exactly where needed	2019-06-12 13:20:20 +02:00
vhdx-log.c	block: Add flags to bdrv(_co)_truncate()	2020-04-30 17:51:07 +02:00
vhdx.c	block/vhdx: Support vhdx image only with 512 bytes logical sector size	2020-09-15 11:05:13 +02:00
vhdx.h	block/vhdx: Use IEC binary prefixes for size constants	2019-04-30 15:29:00 +02:00
vmdk.c	vmdk: fix maybe uninitialized warnings	2020-10-13 13:33:45 +02:00
vpc.c	block: Fix some code style problems, "foo* bar" should be "foo *bar"	2020-11-09 18:42:47 +01:00
vvfat.c	block/vvfat: Fix bad printf format specifiers	2020-11-03 16:24:56 +01:00
win32-aio.c	Include qemu/module.h where needed, drop it from qemu-common.h	2019-06-12 13:18:33 +02:00
write-threshold.c	qapi: Drop qapi_event_send_FOO()'s Error ** argument	2018-08-28 18:21:38 +02:00