diff options
| -rw-r--r-- | block/block-backend.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index e75b8fe..3bb2a6a 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -29,7 +29,7 @@ struct BlockBackend { int refcnt; BlockDriverState *bs; DriveInfo *legacy_dinfo; /* null unless created by drive_new() */ - QTAILQ_ENTRY(BlockBackend) link; /* for blk_backends */ + QTAILQ_ENTRY(BlockBackend) monitor_link; /* for monitor_block_backends */ void *dev; /* attached device model, if any */ /* TODO change to DeviceState when all users are qdevified */ @@ -69,9 +69,10 @@ static const AIOCBInfo block_backend_aiocb_info = { static void drive_info_del(DriveInfo *dinfo); -/* All the BlockBackends (except for hidden ones) */ -static QTAILQ_HEAD(, BlockBackend) blk_backends = - QTAILQ_HEAD_INITIALIZER(blk_backends); +/* All BlockBackends referenced by the monitor and which are iterated through by + * blk_next() */ +static QTAILQ_HEAD(, BlockBackend) monitor_block_backends = + QTAILQ_HEAD_INITIALIZER(monitor_block_backends); /* * Create a new BlockBackend with @name, with a reference count of one. @@ -105,7 +106,7 @@ BlockBackend *blk_new(const char *name, Error **errp) blk->refcnt = 1; notifier_list_init(&blk->remove_bs_notifiers); notifier_list_init(&blk->insert_bs_notifiers); - QTAILQ_INSERT_TAIL(&blk_backends, blk, link); + QTAILQ_INSERT_TAIL(&monitor_block_backends, blk, monitor_link); return blk; } @@ -178,7 +179,7 @@ static void blk_delete(BlockBackend *blk) } /* Avoid double-remove after blk_hide_on_behalf_of_hmp_drive_del() */ if (blk->name[0]) { - QTAILQ_REMOVE(&blk_backends, blk, link); + QTAILQ_REMOVE(&monitor_block_backends, blk, monitor_link); } g_free(blk->name); drive_info_del(blk->legacy_dinfo); @@ -241,7 +242,7 @@ void blk_remove_all_bs(void) } /* - * Return the BlockBackend after @blk. + * Return the monitor-owned BlockBackend after @blk. * If @blk is null, return the first one. * Else, return @blk's next sibling, which may be null. * @@ -252,7 +253,8 @@ void blk_remove_all_bs(void) */ BlockBackend *blk_next(BlockBackend *blk) { - return blk ? QTAILQ_NEXT(blk, link) : QTAILQ_FIRST(&blk_backends); + return blk ? QTAILQ_NEXT(blk, monitor_link) + : QTAILQ_FIRST(&monitor_block_backends); } /* @@ -353,7 +355,7 @@ BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo) */ void blk_hide_on_behalf_of_hmp_drive_del(BlockBackend *blk) { - QTAILQ_REMOVE(&blk_backends, blk, link); + QTAILQ_REMOVE(&monitor_block_backends, blk, monitor_link); blk->name[0] = 0; if (blk->bs) { bdrv_make_anon(blk->bs); |