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Tsirkin" , David Hildenbrand , Peter Xu , Fabiano Rosas , Hailiang Zhang , Zhang Chen , Li Zhijian , Jason Wang , Hyman Huang , Song Gao , Alistair Francis , Steve Sistare Subject: [PATCH V1 06/10] migration: migration_thread_is_self Date: Tue, 27 Feb 2024 09:43:23 -0800 Message-Id: <1709055807-315099-7-git-send-email-steven.sistare@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1709055807-315099-1-git-send-email-steven.sistare@oracle.com> References: <1709055807-315099-1-git-send-email-steven.sistare@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-27_05,2024-02-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 phishscore=0 adultscore=0 mlxlogscore=999 malwarescore=0 spamscore=0 bulkscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2402270137 X-Proofpoint-ORIG-GUID: cP-4sSm6C0ah8eIXVxyHdaU8j26Vw1C2 X-Proofpoint-GUID: cP-4sSm6C0ah8eIXVxyHdaU8j26Vw1C2 Received-SPF: pass client-ip=205.220.177.32; envelope-from=steven.sistare@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, 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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Define and export migration_thread_is_self to eliminate a dependency on MigrationState. Signed-off-by: Steve Sistare --- include/migration/misc.h | 1 + migration/migration.c | 7 +++++++ system/dirtylimit.c | 5 +---- 3 files changed, 9 insertions(+), 4 deletions(-) diff --git a/include/migration/misc.h b/include/migration/misc.h index 7526977..c4b5416 100644 --- a/include/migration/misc.h +++ b/include/migration/misc.h @@ -61,6 +61,7 @@ void migration_object_init(void); void migration_shutdown(void); bool migration_is_idle(void); bool migration_is_active(void); +bool migration_thread_is_self(void); bool migration_is_setup_or_active(void); bool migrate_mode_is_cpr(MigrationState *); diff --git a/migration/migration.c b/migration/migration.c index 98bfc90..27af48c 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1614,6 +1614,13 @@ bool migration_is_active(void) s->state == MIGRATION_STATUS_POSTCOPY_ACTIVE); } +bool migration_thread_is_self(void) +{ + MigrationState *s = current_migration; + + return qemu_thread_is_self(&s->thread); +} + bool migrate_mode_is_cpr(MigrationState *s) { return s->parameters.mode == MIG_MODE_CPR_REBOOT; diff --git a/system/dirtylimit.c b/system/dirtylimit.c index b0afaa0..ab20da3 100644 --- a/system/dirtylimit.c +++ b/system/dirtylimit.c @@ -25,7 +25,6 @@ #include "sysemu/kvm.h" #include "trace.h" #include "migration/misc.h" -#include "migration/migration.h" /* * Dirtylimit stop working if dirty page rate error @@ -448,10 +447,8 @@ static void dirtylimit_cleanup(void) */ static bool dirtylimit_is_allowed(void) { - MigrationState *ms = migrate_get_current(); - if (migration_is_running() && - (!qemu_thread_is_self(&ms->thread)) && + !migration_thread_is_self() && migrate_dirty_limit() && dirtylimit_in_service()) { return false;