[PATCH v4 15/25] assertions for blockdev.h global state API

[Emanuele Giuseppe Esposito]

Signed-off-by: Emanuele Giuseppe Esposito <eespo...@redhat.com>
Reviewed-by: Paolo Bonzini <pbonz...@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
---
 block/block-backend.c |  3 +++
 blockdev.c            | 15 +++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/block/block-backend.c b/block/block-backend.c
index fa30bb88ea..e5e4f4e9b9 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -795,6 +795,7 @@ bool bdrv_is_root_node(BlockDriverState *bs)
  */
 DriveInfo *blk_legacy_dinfo(BlockBackend *blk)
 {
+    assert(qemu_in_main_thread());
     return blk->legacy_dinfo;
 }
 
@@ -806,6 +807,7 @@ DriveInfo *blk_legacy_dinfo(BlockBackend *blk)
 DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo)
 {
     assert(!blk->legacy_dinfo);
+    assert(qemu_in_main_thread());
     return blk->legacy_dinfo = dinfo;
 }
 
@@ -816,6 +818,7 @@ DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, 
DriveInfo *dinfo)
 BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo)
 {
     BlockBackend *blk = NULL;
+    assert(qemu_in_main_thread());
 
     while ((blk = blk_next(blk)) != NULL) {
         if (blk->legacy_dinfo == dinfo) {
diff --git a/blockdev.c b/blockdev.c
index 1bf49ef610..d9bf842a81 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -113,6 +113,8 @@ void override_max_devs(BlockInterfaceType type, int 
max_devs)
     BlockBackend *blk;
     DriveInfo *dinfo;
 
+    assert(qemu_in_main_thread());
+
     if (max_devs <= 0) {
         return;
     }
@@ -142,6 +144,8 @@ void blockdev_mark_auto_del(BlockBackend *blk)
     DriveInfo *dinfo = blk_legacy_dinfo(blk);
     BlockJob *job;
 
+    assert(qemu_in_main_thread());
+
     if (!dinfo) {
         return;
     }
@@ -163,6 +167,7 @@ void blockdev_mark_auto_del(BlockBackend *blk)
 void blockdev_auto_del(BlockBackend *blk)
 {
     DriveInfo *dinfo = blk_legacy_dinfo(blk);
+    assert(qemu_in_main_thread());
 
     if (dinfo && dinfo->auto_del) {
         monitor_remove_blk(blk);
@@ -204,6 +209,8 @@ DriveInfo *drive_get(BlockInterfaceType type, int bus, int 
unit)
     BlockBackend *blk;
     DriveInfo *dinfo;
 
+    assert(qemu_in_main_thread());
+
     for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
         dinfo = blk_legacy_dinfo(blk);
         if (dinfo && dinfo->type == type
@@ -226,6 +233,8 @@ void drive_check_orphaned(void)
     Location loc;
     bool orphans = false;
 
+    assert(qemu_in_main_thread());
+
     for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
         dinfo = blk_legacy_dinfo(blk);
         /*
@@ -259,6 +268,7 @@ void drive_check_orphaned(void)
 
 DriveInfo *drive_get_by_index(BlockInterfaceType type, int index)
 {
+    assert(qemu_in_main_thread());
     return drive_get(type,
                      drive_index_to_bus_id(type, index),
                      drive_index_to_unit_id(type, index));
@@ -270,6 +280,8 @@ int drive_get_max_bus(BlockInterfaceType type)
     BlockBackend *blk;
     DriveInfo *dinfo;
 
+    assert(qemu_in_main_thread());
+
     max_bus = -1;
     for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
         dinfo = blk_legacy_dinfo(blk);
@@ -286,6 +298,7 @@ int drive_get_max_bus(BlockInterfaceType type)
 DriveInfo *drive_get_next(BlockInterfaceType type)
 {
     static int next_block_unit[IF_COUNT];
+    assert(qemu_in_main_thread());
 
     return drive_get(type, 0, next_block_unit[type]++);
 }
@@ -766,6 +779,8 @@ DriveInfo *drive_new(QemuOpts *all_opts, BlockInterfaceType 
block_default_type,
     const char *filename;
     int i;
 
+    assert(qemu_in_main_thread());
+
     /* Change legacy command line options into QMP ones */
     static const struct {
         const char *from;
-- 
2.27.0