haraldwolff/qemu-patch-raspberry4
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block: Use CAFs for debug breakpoints

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When looking for a blkdebug node (which implements debug breakpoints),
use bdrv_primary_bs() to iterate through the graph, because that is
where a blkdebug node would be.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2019-06-12 17:42:13 +02:00 committed by Kevin Wolf
parent c8af87573f
commit f706a92f24
1 changed files with 3 additions and 13 deletions
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16
block.c
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@ -5568,17 +5568,7 @@ void bdrv_debug_event(BlockDriverState *bs, BlkdebugEvent event)
static BlockDriverState *bdrv_find_debug_node(BlockDriverState *bs)
{
while (bs && bs->drv && !bs->drv->bdrv_debug_breakpoint) {
if (bs->file) {
bs = bs->file->bs;
continue;
}
if (bs->drv->is_filter && bs->backing) {
bs = bs->backing->bs;
continue;
}
break;
bs = bdrv_primary_bs(bs);
}
if (bs && bs->drv && bs->drv->bdrv_debug_breakpoint) {
@ -5613,7 +5603,7 @@ int bdrv_debug_remove_breakpoint(BlockDriverState *bs, const char *tag)
int bdrv_debug_resume(BlockDriverState *bs, const char *tag)
{
while (bs && (!bs->drv || !bs->drv->bdrv_debug_resume)) {
bs = bs->file ? bs->file->bs : NULL;
bs = bdrv_primary_bs(bs);
}
if (bs && bs->drv && bs->drv->bdrv_debug_resume) {
@ -5626,7 +5616,7 @@ int bdrv_debug_resume(BlockDriverState *bs, const char *tag)
bool bdrv_debug_is_suspended(BlockDriverState *bs, const char *tag)
{
while (bs && bs->drv && !bs->drv->bdrv_debug_is_suspended) {
bs = bs->file ? bs->file->bs : NULL;
bs = bdrv_primary_bs(bs);
}
if (bs && bs->drv && bs->drv->bdrv_debug_is_suspended) {