diff --git a/include/migration/migration.h b/include/migration/migration.h index 357eaa0786..2cd20077ac 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -238,7 +238,7 @@ bool migration_is_idle(MigrationState *s); bool migration_has_finished(MigrationState *); bool migration_has_failed(MigrationState *); /* True if outgoing migration has entered postcopy phase */ -bool migration_in_postcopy(MigrationState *); +bool migration_in_postcopy(void); /* ...and after the device transmission */ bool migration_in_postcopy_after_devices(MigrationState *); MigrationState *migrate_get_current(void); diff --git a/migration/migration.c b/migration/migration.c index 2990c4069c..7da16cf44e 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1062,14 +1062,16 @@ bool migration_has_failed(MigrationState *s) s->state == MIGRATION_STATUS_FAILED); } -bool migration_in_postcopy(MigrationState *s) +bool migration_in_postcopy(void) { + MigrationState *s = migrate_get_current(); + return (s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE); } bool migration_in_postcopy_after_devices(MigrationState *s) { - return migration_in_postcopy(s) && s->postcopy_after_devices; + return migration_in_postcopy() && s->postcopy_after_devices; } bool migration_is_idle(MigrationState *s) diff --git a/migration/ram.c b/migration/ram.c index fa5a2901dc..289d7eb5c9 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -776,10 +776,9 @@ static int save_zero_page(RAMState *rs, RAMBlock *block, ram_addr_t offset, return pages; } -static void ram_release_pages(MigrationState *ms, const char *rbname, - uint64_t offset, int pages) +static void ram_release_pages(const char *rbname, uint64_t offset, int pages) { - if (!migrate_release_ram() || !migration_in_postcopy(ms)) { + if (!migrate_release_ram() || !migration_in_postcopy()) { return; } @@ -845,9 +844,9 @@ static int ram_save_page(RAMState *rs, MigrationState *ms, * page would be stale */ xbzrle_cache_zero_page(rs, current_addr); - ram_release_pages(ms, block->idstr, pss->offset, pages); + ram_release_pages(block->idstr, pss->offset, pages); } else if (!rs->ram_bulk_stage && - !migration_in_postcopy(ms) && migrate_use_xbzrle()) { + !migration_in_postcopy() && migrate_use_xbzrle()) { pages = save_xbzrle_page(rs, &p, current_addr, block, offset, last_stage); if (!last_stage) { @@ -866,7 +865,7 @@ static int ram_save_page(RAMState *rs, MigrationState *ms, if (send_async) { qemu_put_buffer_async(rs->f, p, TARGET_PAGE_SIZE, migrate_release_ram() & - migration_in_postcopy(ms)); + migration_in_postcopy()); } else { qemu_put_buffer(rs->f, p, TARGET_PAGE_SIZE); } @@ -896,8 +895,7 @@ static int do_compress_ram_page(QEMUFile *f, RAMBlock *block, error_report("compressed data failed!"); } else { bytes_sent += blen; - ram_release_pages(migrate_get_current(), block->idstr, - offset & TARGET_PAGE_MASK, 1); + ram_release_pages(block->idstr, offset & TARGET_PAGE_MASK, 1); } return bytes_sent; @@ -1033,7 +1031,7 @@ static int ram_save_compressed_page(RAMState *rs, MigrationState *ms, } } if (pages > 0) { - ram_release_pages(ms, block->idstr, pss->offset, pages); + ram_release_pages(block->idstr, pss->offset, pages); } } else { offset |= RAM_SAVE_FLAG_CONTINUE; @@ -1041,7 +1039,7 @@ static int ram_save_compressed_page(RAMState *rs, MigrationState *ms, if (pages == -1) { pages = compress_page_with_multi_thread(rs, block, offset); } else { - ram_release_pages(ms, block->idstr, pss->offset, pages); + ram_release_pages(block->idstr, pss->offset, pages); } } } @@ -2200,7 +2198,7 @@ static int ram_save_complete(QEMUFile *f, void *opaque) rcu_read_lock(); - if (!migration_in_postcopy(migrate_get_current())) { + if (!migration_in_postcopy()) { migration_bitmap_sync(rs); } @@ -2238,7 +2236,7 @@ static void ram_save_pending(QEMUFile *f, void *opaque, uint64_t max_size, remaining_size = rs->migration_dirty_pages * TARGET_PAGE_SIZE; - if (!migration_in_postcopy(migrate_get_current()) && + if (!migration_in_postcopy() && remaining_size < max_size) { qemu_mutex_lock_iothread(); rcu_read_lock(); diff --git a/migration/savevm.c b/migration/savevm.c index 3b19a4a274..853a81a080 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -1062,7 +1062,7 @@ int qemu_savevm_state_iterate(QEMUFile *f, bool postcopy) static bool should_send_vmdesc(void) { MachineState *machine = MACHINE(qdev_get_machine()); - bool in_postcopy = migration_in_postcopy(migrate_get_current()); + bool in_postcopy = migration_in_postcopy(); return !machine->suppress_vmdesc && !in_postcopy; } @@ -1111,7 +1111,7 @@ void qemu_savevm_state_complete_precopy(QEMUFile *f, bool iterable_only) int vmdesc_len; SaveStateEntry *se; int ret; - bool in_postcopy = migration_in_postcopy(migrate_get_current()); + bool in_postcopy = migration_in_postcopy(); trace_savevm_state_complete_precopy();