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GET /api/patches/2227469/?format=api
{ "id": 2227469, "url": "http://patchwork.ozlabs.org/api/patches/2227469/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260423191958.1440-30-farosas@suse.de/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260423191958.1440-30-farosas@suse.de>", "list_archive_url": null, "date": "2026-04-23T19:19:43", "name": "[PULL,29/43] vmstate: Introduce vmstate_save_field_with_vmdesc()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "7a6c5061a88ed85561e9309ab42c43b5243267ac", "submitter": { "id": 85343, "url": "http://patchwork.ozlabs.org/api/people/85343/?format=api", "name": "Fabiano Rosas", "email": "farosas@suse.de" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260423191958.1440-30-farosas@suse.de/mbox/", "series": [ { "id": 501236, "url": "http://patchwork.ozlabs.org/api/series/501236/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=501236", "date": "2026-04-23T19:19:14", "name": "[PULL,01/43] checkpatch: Allow spaces after all coroutine annotations", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501236/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2227469/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2227469/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256\n header.s=susede2_rsa header.b=rNAXuRoB;\n\tdkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=iez0f+7P;\n\tdkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de\n header.a=rsa-sha256 header.s=susede2_rsa header.b=rNAXuRoB;\n\tdkim=neutral header.d=suse.de header.i=@suse.de header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=iez0f+7P;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Thu, 23 Apr 2026 19:20:44 +0000" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de;\n s=susede2_rsa;\n t=1776972045;\n h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:\n mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=QtD9R39osz5Yw6zLx6fAJZEvdDrA61iRI14Z4AjFJ4o=;\n b=rNAXuRoBklZ+75BBhEHndV6JLBQ33xVsBJ2ZG36875NFaFlHSGurFn/UyRFK8T6kOynCWn\n C2+fSxuKmG/zCWH8Sjovp2LJbdNp9TIwwb/8kBoVfPF9C1f0tBfqC2K+oo0fdcV3OLlg6Y\n PzckwjO1027/W2QFtbtuvIoR/ZGuw9s=", "v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de;\n s=susede2_ed25519; t=1776972045;\n h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:\n mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=QtD9R39osz5Yw6zLx6fAJZEvdDrA61iRI14Z4AjFJ4o=;\n b=iez0f+7PgTF3m3LxR7WmCa429+RAVQZvNLj6tOJv63l+othUuzRl/KLoE3ePswLKVZThid\n ez8mv0AyLXWqMsBA==", "v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de;\n s=susede2_rsa;\n t=1776972045;\n h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:\n mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=QtD9R39osz5Yw6zLx6fAJZEvdDrA61iRI14Z4AjFJ4o=;\n b=rNAXuRoBklZ+75BBhEHndV6JLBQ33xVsBJ2ZG36875NFaFlHSGurFn/UyRFK8T6kOynCWn\n C2+fSxuKmG/zCWH8Sjovp2LJbdNp9TIwwb/8kBoVfPF9C1f0tBfqC2K+oo0fdcV3OLlg6Y\n PzckwjO1027/W2QFtbtuvIoR/ZGuw9s=", "v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de;\n s=susede2_ed25519; t=1776972045;\n h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:\n mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=QtD9R39osz5Yw6zLx6fAJZEvdDrA61iRI14Z4AjFJ4o=;\n b=iez0f+7PgTF3m3LxR7WmCa429+RAVQZvNLj6tOJv63l+othUuzRl/KLoE3ePswLKVZThid\n ez8mv0AyLXWqMsBA==" ], "From": "Fabiano Rosas <farosas@suse.de>", "To": "qemu-devel@nongnu.org", "Cc": "Peter Xu <peterx@redhat.com>,\n Alexander Mikhalitsyn <aleksandr.mikhalitsyn@futurfusion.io>,\n Juraj Marcin <jmarcin@redhat.com>", "Subject": "[PULL 29/43] vmstate: Introduce vmstate_save_field_with_vmdesc()", "Date": "Thu, 23 Apr 2026 16:19:43 -0300", "Message-ID": "<20260423191958.1440-30-farosas@suse.de>", "X-Mailer": "git-send-email 2.51.0", "In-Reply-To": "<20260423191958.1440-1-farosas@suse.de>", "References": "<20260423191958.1440-1-farosas@suse.de>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Rspamd-Action": "no action", "X-Rspamd-Server": "rspamd2.dmz-prg2.suse.org", "X-Spamd-Result": "default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[100.00%];\n NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[];\n R_MISSING_CHARSET(0.50)[];\n R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519];\n NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain];\n MX_GOOD(-0.01)[]; ARC_NA(0.00)[];\n FUZZY_RATELIMITED(0.00)[rspamd.com]; RCVD_COUNT_TWO(0.00)[2];\n MIME_TRACE(0.00)[0:+]; RCVD_VIA_SMTP_AUTH(0.00)[];\n SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from];\n TO_DN_SOME(0.00)[];\n RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from];\n RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received];\n FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[];\n DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns,suse.de:dkim,suse.de:mid,suse.de:email];\n RCVD_TLS_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[];\n RCPT_COUNT_THREE(0.00)[4];\n DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519];\n DKIM_TRACE(0.00)[suse.de:+]", "X-Rspamd-Queue-Id": "9E8596A895", "X-Spam-Score": "-3.01", "Received-SPF": "pass client-ip=195.135.223.130; envelope-from=farosas@suse.de;\n helo=smtp-out1.suse.de", "X-Spam_score_int": "-43", "X-Spam_score": "-4.4", "X-Spam_bar": "----", "X-Spam_report": "(-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Peter Xu <peterx@redhat.com>\n\nIntroduce a helper to do both the JSON blob generations and save vmstate.\nThis further shrinks the function a bit. More importantly, we'll need to\nsave two fields in one loop very soon in the future with the JSON blob.\n\nReviewed-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@futurfusion.io>\nReviewed-by: Fabiano Rosas <farosas@suse.de>\nSigned-off-by: Peter Xu <peterx@redhat.com>\nReviewed-by: Juraj Marcin <jmarcin@redhat.com>\nLink: https://lore.kernel.org/qemu-devel/20260401202844.673494-7-peterx@redhat.com\nSigned-off-by: Fabiano Rosas <farosas@suse.de>\n---\n migration/vmstate.c | 45 ++++++++++++++++++++++++++++++++-------------\n 1 file changed, 32 insertions(+), 13 deletions(-)", "diff": "diff --git a/migration/vmstate.c b/migration/vmstate.c\nindex 05badef42f..b274204e66 100644\n--- a/migration/vmstate.c\n+++ b/migration/vmstate.c\n@@ -514,6 +514,35 @@ static bool vmstate_save_field(QEMUFile *f, void *pv, size_t size,\n return true;\n }\n \n+/*\n+ * Save a whole VMSD field, including its JSON blob separately when @vmdesc\n+ * is specified.\n+ */\n+static inline bool\n+vmstate_save_field_with_vmdesc(QEMUFile *f, void *pv, size_t size,\n+ const VMStateDescription *vmsd,\n+ const VMStateField *field, JSONWriter *vmdesc,\n+ int i, int max, Error **errp)\n+{\n+ uint64_t old_offset, written_bytes;\n+ bool ok;\n+\n+ vmsd_desc_field_start(vmsd, vmdesc, field, i, max);\n+\n+ old_offset = qemu_file_transferred(f);\n+ ok = vmstate_save_field(f, pv, size, field, vmdesc, errp);\n+ written_bytes = qemu_file_transferred(f) - old_offset;\n+\n+ vmsd_desc_field_end(vmsd, vmdesc, field, written_bytes);\n+\n+ if (!ok) {\n+ error_prepend(errp, \"Save of field %s/%s failed: \",\n+ vmsd->name, field->name);\n+ }\n+\n+ return ok;\n+}\n+\n static bool vmstate_save_vmsd_v(QEMUFile *f, const VMStateDescription *vmsd,\n void *opaque, JSONWriter *vmdesc,\n int version_id, Error **errp)\n@@ -542,7 +571,6 @@ static bool vmstate_save_vmsd_v(QEMUFile *f, const VMStateDescription *vmsd,\n void *first_elem = opaque + field->offset;\n int i, n_elems = vmstate_n_elems(opaque, field);\n int size = vmstate_size(opaque, field);\n- uint64_t old_offset, written_bytes;\n JSONWriter *vmdesc_loop = vmdesc;\n bool is_prev_null = false;\n \n@@ -559,7 +587,6 @@ static bool vmstate_save_vmsd_v(QEMUFile *f, const VMStateDescription *vmsd,\n /* maximum number of elements to compress in the JSON blob */\n int max_elems = vmsd_can_compress(field) ? (n_elems - i) : 1;\n \n- old_offset = qemu_file_transferred(f);\n if (field->flags & VMS_ARRAY_OF_POINTER) {\n assert(curr_elem);\n curr_elem = *(void **)curr_elem;\n@@ -606,15 +633,9 @@ static bool vmstate_save_vmsd_v(QEMUFile *f, const VMStateDescription *vmsd,\n }\n }\n \n- vmsd_desc_field_start(vmsd, vmdesc_loop, inner_field,\n- i, max_elems);\n-\n- ok = vmstate_save_field(f, curr_elem, size, inner_field,\n- vmdesc_loop, errp);\n-\n- written_bytes = qemu_file_transferred(f) - old_offset;\n- vmsd_desc_field_end(vmsd, vmdesc_loop, inner_field,\n- written_bytes);\n+ ok = vmstate_save_field_with_vmdesc(f, curr_elem, size, vmsd,\n+ inner_field, vmdesc_loop,\n+ i, max_elems, errp);\n \n /* If we used a fake temp field.. free it now */\n if (is_null) {\n@@ -622,8 +643,6 @@ static bool vmstate_save_vmsd_v(QEMUFile *f, const VMStateDescription *vmsd,\n }\n \n if (!ok) {\n- error_prepend(errp, \"Save of field %s/%s failed: \",\n- vmsd->name, field->name);\n goto out;\n }\n \n", "prefixes": [ "PULL", "29/43" ] }