Block exports are used by softmmu, qemu-storage-daemon, and qemu-nbd.
They are not used by other programs and are not otherwise needed in
libblock.
Undo the recent move of blockdev-nbd.c from blockdev_ss into block_ss.
Two stubs are required to support this:
1. bdrv_close_all() (libblock) calls blk_exp_close_all() (libblockdev).
2. qemu_system_killed() is called by os-posix.c (libblockdev) and not
implemented in qemu-nbd.
Signed-off-by: Stefan Hajnoczi <stefa...@redhat.com>
---
stubs/blk-exp-close-all.c | 7 +++++++
stubs/qemu-system-killed.c | 10 ++++++++++
block/export/meson.build | 4 ++--
meson.build | 4 ++--
nbd/meson.build | 2 ++
stubs/meson.build | 2 ++
6 files changed, 25 insertions(+), 4 deletions(-)
create mode 100644 stubs/blk-exp-close-all.c
create mode 100644 stubs/qemu-system-killed.c
diff --git a/stubs/blk-exp-close-all.c b/stubs/blk-exp-close-all.c
new file mode 100644
index 0000000000..1c71316763
--- /dev/null
+++ b/stubs/blk-exp-close-all.c
@@ -0,0 +1,7 @@
+#include "qemu/osdep.h"
+#include "block/export.h"
+
+/* Only used in programs that support block exports (libblockdev.fa) */
+void blk_exp_close_all(void)
+{
+}
diff --git a/stubs/qemu-system-killed.c b/stubs/qemu-system-killed.c
new file mode 100644
index 0000000000..9af131917b
--- /dev/null
+++ b/stubs/qemu-system-killed.c
@@ -0,0 +1,10 @@
+#include "qemu/osdep.h"
+#include "sysemu/runstate.h"
+
+/*
+ * This function is needed by os-posix.c but only implemented by softmmu and
+ * qemu-storage-daemon. Other programs may have no need for it.
+ */
+void qemu_system_killed(int signal, pid_t pid)
+{
+}
diff --git a/block/export/meson.build b/block/export/meson.build
index 469a7aa0f5..a2772a0dce 100644
--- a/block/export/meson.build
+++ b/block/export/meson.build
@@ -1,2 +1,2 @@
-block_ss.add(files('export.c'))
-block_ss.add(when: 'CONFIG_VHOST_USER', if_true:
files('vhost-user-blk-server.c'))
+blockdev_ss.add(files('export.c'))
+blockdev_ss.add(when: 'CONFIG_VHOST_USER', if_true:
files('vhost-user-blk-server.c'))
diff --git a/meson.build b/meson.build
index 18d689b423..0e9528adab 100644
--- a/meson.build
+++ b/meson.build
@@ -835,7 +835,6 @@ subdir('dump')
block_ss.add(files(
'block.c',
- 'blockdev-nbd.c',
'blockjob.c',
'job.c',
'qemu-io-cmds.c',
@@ -848,6 +847,7 @@ subdir('block')
blockdev_ss.add(files(
'blockdev.c',
+ 'blockdev-nbd.c',
'iothread.c',
'job-qmp.c',
))
@@ -1171,7 +1171,7 @@ if have_tools
qemu_io = executable('qemu-io', files('qemu-io.c'),
dependencies: [block, qemuutil], install: true)
qemu_nbd = executable('qemu-nbd', files('qemu-nbd.c'),
- dependencies: [block, qemuutil], install: true)
+ dependencies: [blockdev, qemuutil], install: true)
subdir('storage-daemon')
subdir('contrib/rdmacm-mux')
diff --git a/nbd/meson.build b/nbd/meson.build
index 0c00a776d3..2baaa36948 100644
--- a/nbd/meson.build
+++ b/nbd/meson.build
@@ -1,5 +1,7 @@
block_ss.add(files(
'client.c',
'common.c',
+))
+blockdev_ss.add(files(
'server.c',
))
diff --git a/stubs/meson.build b/stubs/meson.build
index e0b322bc28..60234571b1 100644
--- a/stubs/meson.build
+++ b/stubs/meson.build
@@ -1,6 +1,7 @@
stub_ss.add(files('arch_type.c'))
stub_ss.add(files('bdrv-next-monitor-owned.c'))
stub_ss.add(files('blk-commit-all.c'))
+stub_ss.add(files('blk-exp-close-all.c'))
stub_ss.add(files('blockdev-close-all-bdrv-states.c'))
stub_ss.add(files('change-state-handler.c'))
stub_ss.add(files('clock-warp.c'))
@@ -25,6 +26,7 @@ stub_ss.add(files('monitor.c'))
stub_ss.add(files('monitor-core.c'))
stub_ss.add(files('pci-bus.c'))
stub_ss.add(files('pci-host-piix.c'))
+stub_ss.add(files('qemu-system-killed.c'))
stub_ss.add(files('qemu-timer-notify-cb.c'))
stub_ss.add(files('qmp_memory_device.c'))
stub_ss.add(files('qtest.c'))
--
2.26.2
