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bh=B4NDq7xY/p5nEHU+fj0NRxwrZ3KkfBVlXtATn0X/fuM=; b=bCKRmP8bvpmTR96yCs12CVabjIqjwBQQCuZIW54nyR9aO3izDAWVEeznKNmtKu8DQlE0fx Uxh6rSBtTjwG/HdncQPEc0wso0nCTK2smm5Oit5I/6AY8pWM+oiojtF3c7b/OpVgC9azw4 jQ+HkGgmIB5i6LubyAchW8VdU5sCjnM= X-MC-Unique: J1N9i6duM_ipMkerFHgLhA-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Subject: [PATCH v4 2/9] migration: stop returning errno from load_snapshot() Date: Tue, 15 Sep 2020 12:35:16 +0100 Message-Id: <20200915113523.2520317-3-berrange@redhat.com> In-Reply-To: <20200915113523.2520317-1-berrange@redhat.com> References: <20200915113523.2520317-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0.003 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=207.211.31.81; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/15 05:35:09 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -50 X-Spam_score: -5.1 X-Spam_bar: ----- X-Spam_report: (-5.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.999, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-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: Kevin Wolf , Peter Krempa , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , "Denis V. Lunev" , qemu-block@nongnu.org, Juan Quintela , "Dr. David Alan Gilbert" , Markus Armbruster , Pavel Dovgalyuk , Paolo Bonzini , Max Reitz , John Snow Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) None of the callers care about the errno value since there is a full Error object populated. This gives consistency with save_snapshot() which already just returns -1. Reviewed-by: Dr. David Alan Gilbert Signed-off-by: Daniel P. Berrang=C3=A9 --- migration/savevm.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/migration/savevm.c b/migration/savevm.c index 3826c437cc..711137bcbe 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2870,20 +2870,20 @@ int load_snapshot(const char *name, Error **errp) if (!replay_can_snapshot()) { error_setg(errp, "Record/replay does not allow loading snapshot " "right now. Try once more later."); - return -EINVAL; + return -1; } =20 if (!bdrv_all_can_snapshot(errp)) { - return -ENOTSUP; + return -1; } ret =3D bdrv_all_find_snapshot(name, errp); if (ret < 0) { - return ret; + return -1; } =20 bs_vm_state =3D bdrv_all_find_vmstate_bs(errp); if (!bs_vm_state) { - return -ENOTSUP; + return -1; } aio_context =3D bdrv_get_aio_context(bs_vm_state); =20 @@ -2892,11 +2892,11 @@ int load_snapshot(const char *name, Error **errp) ret =3D bdrv_snapshot_find(bs_vm_state, &sn, name); aio_context_release(aio_context); if (ret < 0) { - return ret; + return -1; } else if (sn.vm_state_size =3D=3D 0) { error_setg(errp, "This is a disk-only snapshot. Revert to it " " offline using qemu-img"); - return -EINVAL; + return -1; } =20 /* Flush all IO requests so they don't interfere with the new state. = */ @@ -2911,7 +2911,6 @@ int load_snapshot(const char *name, Error **errp) f =3D qemu_fopen_bdrv(bs_vm_state, 0); if (!f) { error_setg(errp, "Could not open VM state file"); - ret =3D -EINVAL; goto err_drain; } =20 @@ -2927,14 +2926,14 @@ int load_snapshot(const char *name, Error **errp) =20 if (ret < 0) { error_setg(errp, "Error %d while loading VM state", ret); - return ret; + return -1; } =20 return 0; =20 err_drain: bdrv_drain_all_end(); - return ret; + return -1; } =20 void vmstate_register_ram(MemoryRegion *mr, DeviceState *dev) --=20 2.26.2