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bh=VCPycQ3R4gHNei3Z8btmXK5WJxMPUe01jew7dJhsMI0=; b=LHjGBOioqJU1cBKC6wTD7+FqVrzLR6zJtuA7kJBL3F/EIN6LMYxrmOToP69WcT1ngwO9i7 UUbtNWXfdz6ygPowgeu8mIifb7dQ5lJlsTp8MB7S7DSdJedNUIJy1+gKY7w8iQUGL8DJTE fGN3Vkt2uv4JQC9Q3bz3u1gzmIA8xWM= X-MC-Unique: f-OPw1YQNMK1UuoTb0JVbw-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH 20/33] migration: push Error **errp into global_state_store() Date: Thu, 4 Feb 2021 17:18:54 +0000 Message-Id: <20210204171907.901471-21-berrange@redhat.com> In-Reply-To: <20210204171907.901471-1-berrange@redhat.com> References: <20210204171907.901471-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.351, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juan Quintela , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , "Dr. David Alan Gilbert" , Hailiang Zhang Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) This is an incremental step in converting vmstate loading code to report via Error objects instead of printing directly to the console/monitor. Signed-off-by: Daniel P. Berrang=C3=A9 --- include/migration/global_state.h | 2 +- migration/global_state.c | 6 +++--- migration/migration.c | 8 ++++++-- migration/savevm.c | 5 ++--- 4 files changed, 12 insertions(+), 9 deletions(-) diff --git a/include/migration/global_state.h b/include/migration/global_st= ate.h index 945eb35d5b..eeade88ef8 100644 --- a/include/migration/global_state.h +++ b/include/migration/global_state.h @@ -16,7 +16,7 @@ #include "qapi/qapi-types-run-state.h" =20 void register_global_state(void); -int global_state_store(void); +int global_state_store(Error **errp); void global_state_store_running(void); bool global_state_received(void); RunState global_state_get_runstate(void); diff --git a/migration/global_state.c b/migration/global_state.c index a33947ca32..36fda38aad 100644 --- a/migration/global_state.c +++ b/migration/global_state.c @@ -29,13 +29,13 @@ typedef struct { =20 static GlobalState global_state; =20 -int global_state_store(void) +int global_state_store(Error **errp) { if (!runstate_store((char *)global_state.runstate, sizeof(global_state.runstate))) { - error_report("runstate name too big: %s", global_state.runstate); + error_setg(errp, "runstate name too big: %s", global_state.runstat= e); trace_migrate_state_too_big(); - return -EINVAL; + return -1; } return 0; } diff --git a/migration/migration.c b/migration/migration.c index b9cf56e61f..395a1b10f5 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2811,6 +2811,7 @@ static int postcopy_start(MigrationState *ms) int64_t bandwidth =3D migrate_max_postcopy_bandwidth(); bool restart_block =3D false; int cur_state =3D MIGRATION_STATUS_ACTIVE; + Error *local_err =3D NULL; if (!migrate_pause_before_switchover()) { migrate_set_state(&ms->state, MIGRATION_STATUS_ACTIVE, MIGRATION_STATUS_POSTCOPY_ACTIVE); @@ -2821,9 +2822,10 @@ static int postcopy_start(MigrationState *ms) trace_postcopy_start_set_run(); =20 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL); - global_state_store(); + global_state_store(&local_err); ret =3D vm_stop_force_state(RUN_STATE_FINISH_MIGRATE); if (ret < 0) { + error_report_err(local_err); goto fail; } =20 @@ -3030,11 +3032,12 @@ static void migration_completion(MigrationState *s) int current_active_state =3D s->state; =20 if (s->state =3D=3D MIGRATION_STATUS_ACTIVE) { + Error *local_err =3D NULL; qemu_mutex_lock_iothread(); s->downtime_start =3D qemu_clock_get_ms(QEMU_CLOCK_REALTIME); qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER, NULL); s->vm_was_running =3D runstate_is_running(); - ret =3D global_state_store(); + ret =3D global_state_store(&local_err); =20 if (!ret) { bool inactivate =3D !migrate_colo_enabled(); @@ -3055,6 +3058,7 @@ static void migration_completion(MigrationState *s) qemu_mutex_unlock_iothread(); =20 if (ret < 0) { + error_report_err(local_err); goto fail; } } else if (s->state =3D=3D MIGRATION_STATUS_POSTCOPY_ACTIVE) { diff --git a/migration/savevm.c b/migration/savevm.c index 289a3d55bb..c18b7e6033 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2828,9 +2828,8 @@ bool save_snapshot(const char *name, bool overwrite, = const char *vmstate, =20 saved_vm_running =3D runstate_is_running(); =20 - ret =3D global_state_store(); - if (ret) { - error_setg(errp, "Error saving global state"); + ret =3D global_state_store(errp); + if (ret < 0) { return false; } vm_stop(RUN_STATE_SAVE_VM); --=20 2.29.2