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authorKevin Wolf <kwolf@redhat.com>2016-03-22 18:58:50 +0100
committerKevin Wolf <kwolf@redhat.com>2016-05-19 16:45:31 +0200
commit7c8eece45b10fc9b716850345118ed6fa8d17887 (patch)
treea800da22963a8ff1d036a97a3281ddd555d07c91 /migration/block.c
parentdde33812a83b9c55b180a85411bfc4d6c39e8b11 (diff)
block: Avoid bs->blk in bdrv_next()
We need to introduce a separate BdrvNextIterator struct that can keep more state than just the current BDS in order to avoid using the bs->blk pointer. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'migration/block.c')
-rw-r--r--migration/block.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/migration/block.c b/migration/block.c
index 1743317288..a7a76a0fb9 100644
--- a/migration/block.c
+++ b/migration/block.c
@@ -383,6 +383,7 @@ static void init_blk_migration(QEMUFile *f)
BlockDriverState *bs;
BlkMigDevState *bmds;
int64_t sectors;
+ BdrvNextIterator *it = NULL;
block_mig_state.submitted = 0;
block_mig_state.read_done = 0;
@@ -392,7 +393,8 @@ static void init_blk_migration(QEMUFile *f)
block_mig_state.bulk_completed = 0;
block_mig_state.zero_blocks = migrate_zero_blocks();
- for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
+
+ while ((it = bdrv_next(it, &bs))) {
if (bdrv_is_read_only(bs)) {
continue;
}