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bh=8Ox7guk9VGy+mmMn8UxeIEK27crnlX3JBBs9y8mfFng=; b=crf8SzKJqq3ZqwxpiwMFuj3prQUm8c+nlt5kJ9gMnHoXX7h0t46gXbGvT2a4VN9Jn/wWT/ dkdckxqHOhR4sspbva4dUzDCPnTzv29Dddh+nHeHFIMuKFfLTlQChZkKklJBYI+799INbg T6DPAshq7F6L3zBfsJdqLMrpaCHEMSo= X-MC-Unique: t-Q-cS1qO1yh8djtmeyFdw-1 From: Kevin Wolf To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, mst@redhat.com, quintela@redhat.com, peterx@redhat.com, leobras@redhat.com, stefanha@redhat.com, pbonzini@redhat.com, qemu-block@nongnu.org, qemu-stable@nongnu.org Subject: [PATCH 1/2] vmstate: Mark VMStateInfo.get/put() coroutine_mixed_fn Date: Tue, 5 Sep 2023 16:50:01 +0200 Message-ID: <20230905145002.46391-2-kwolf@redhat.com> In-Reply-To: <20230905145002.46391-1-kwolf@redhat.com> References: <20230905145002.46391-1-kwolf@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 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=170.10.133.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_H4=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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1693925491405100009 Content-Type: text/plain; charset="utf-8" Migration code can run both in coroutine context (the usual case) and non-coroutine context (at least savevm/loadvm for snapshots). This also affects the VMState callbacks, and devices must consider this. Change the callback definition in VMStateInfo to be explicit about it. Signed-off-by: Kevin Wolf Acked-by: Peter Xu --- include/migration/vmstate.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h index d1b8abe08d..e4db910339 100644 --- a/include/migration/vmstate.h +++ b/include/migration/vmstate.h @@ -41,9 +41,11 @@ typedef struct VMStateField VMStateField; */ struct VMStateInfo { const char *name; - int (*get)(QEMUFile *f, void *pv, size_t size, const VMStateField *fie= ld); - int (*put)(QEMUFile *f, void *pv, size_t size, const VMStateField *fie= ld, - JSONWriter *vmdesc); + int coroutine_mixed_fn (*get)(QEMUFile *f, void *pv, size_t size, + const VMStateField *field); + int coroutine_mixed_fn (*put)(QEMUFile *f, void *pv, size_t size, + const VMStateField *field, + JSONWriter *vmdesc); }; =20 enum VMStateFlags { --=20 2.41.0