diff --git a/include/migration/migration.h b/include/migration/migration.h index 1323e3dd4a..720a949f0b 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -42,9 +42,14 @@ struct MigrationParams { typedef struct MigrationState MigrationState; +typedef QLIST_HEAD(, LoadStateEntry) LoadStateEntry_Head; + /* State for the incoming migration */ struct MigrationIncomingState { QEMUFile *file; + + /* See savevm.c */ + LoadStateEntry_Head loadvm_handlers; }; MigrationIncomingState *migration_incoming_get_current(void); diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index fc5e6439e4..7153b1e145 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -808,6 +808,8 @@ extern const VMStateInfo vmstate_info_bitmap; #define SELF_ANNOUNCE_ROUNDS 5 +void loadvm_free_handlers(MigrationIncomingState *mis); + int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, void *opaque, int version_id); void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h index 74dfad3821..6fdcbcd524 100644 --- a/include/qemu/typedefs.h +++ b/include/qemu/typedefs.h @@ -31,6 +31,7 @@ typedef struct I2CBus I2CBus; typedef struct I2SCodec I2SCodec; typedef struct ISABus ISABus; typedef struct ISADevice ISADevice; +typedef struct LoadStateEntry LoadStateEntry; typedef struct MACAddr MACAddr; typedef struct MachineClass MachineClass; typedef struct MachineState MachineState; diff --git a/migration/migration.c b/migration/migration.c index 66c0b57b26..b04b4571a8 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -84,12 +84,14 @@ MigrationIncomingState *migration_incoming_state_new(QEMUFile* f) { mis_current = g_malloc0(sizeof(MigrationIncomingState)); mis_current->file = f; + QLIST_INIT(&mis_current->loadvm_handlers); return mis_current; } void migration_incoming_state_destroy(void) { + loadvm_free_handlers(mis_current); g_free(mis_current); mis_current = NULL; } diff --git a/migration/savevm.c b/migration/savevm.c index d0991e810f..5324c4c7fc 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -936,18 +936,26 @@ static SaveStateEntry *find_se(const char *idstr, int instance_id) return NULL; } -typedef struct LoadStateEntry { +struct LoadStateEntry { QLIST_ENTRY(LoadStateEntry) entry; SaveStateEntry *se; int section_id; int version_id; -} LoadStateEntry; +}; + +void loadvm_free_handlers(MigrationIncomingState *mis) +{ + LoadStateEntry *le, *new_le; + + QLIST_FOREACH_SAFE(le, &mis->loadvm_handlers, entry, new_le) { + QLIST_REMOVE(le, entry); + g_free(le); + } +} int qemu_loadvm_state(QEMUFile *f) { - QLIST_HEAD(, LoadStateEntry) loadvm_handlers = - QLIST_HEAD_INITIALIZER(loadvm_handlers); - LoadStateEntry *le, *new_le; + MigrationIncomingState *mis = migration_incoming_get_current(); Error *local_err = NULL; uint8_t section_type; unsigned int v; @@ -978,6 +986,7 @@ int qemu_loadvm_state(QEMUFile *f) while ((section_type = qemu_get_byte(f)) != QEMU_VM_EOF) { uint32_t instance_id, version_id, section_id; SaveStateEntry *se; + LoadStateEntry *le; char idstr[256]; trace_qemu_loadvm_state_section(section_type); @@ -1019,7 +1028,7 @@ int qemu_loadvm_state(QEMUFile *f) le->se = se; le->section_id = section_id; le->version_id = version_id; - QLIST_INSERT_HEAD(&loadvm_handlers, le, entry); + QLIST_INSERT_HEAD(&mis->loadvm_handlers, le, entry); ret = vmstate_load(f, le->se, le->version_id); if (ret < 0) { @@ -1033,7 +1042,7 @@ int qemu_loadvm_state(QEMUFile *f) section_id = qemu_get_be32(f); trace_qemu_loadvm_state_section_partend(section_id); - QLIST_FOREACH(le, &loadvm_handlers, entry) { + QLIST_FOREACH(le, &mis->loadvm_handlers, entry) { if (le->section_id == section_id) { break; } @@ -1081,11 +1090,6 @@ int qemu_loadvm_state(QEMUFile *f) ret = 0; out: - QLIST_FOREACH_SAFE(le, &loadvm_handlers, entry, new_le) { - QLIST_REMOVE(le, entry); - g_free(le); - } - if (ret == 0) { /* We may not have a VMDESC section, so ignore relative errors */ ret = file_error_after_eof;