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bh=3/nFSuzQ0Lf2TU/iY+VKzqdVQEAVcTY8BBevBt3b5aQ=; b=lT1jGESMwOeBQU9lFUoWt6D4ILLOdXQc/MmS85DhGBsrht/N+8ORVBvzsTSubciKGE+dpe M01wdT1z0uIQ07J/F1Tr3nixlbazO1npSAyDWSOZZEuzU42EMgiWy76RfiWpIsy1VjNcwb XdkC19iWbWKXwGs1OMGqO4IvoBVUwTI= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1769198068; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=3/nFSuzQ0Lf2TU/iY+VKzqdVQEAVcTY8BBevBt3b5aQ=; b=FmLWICb3EZBnIlddvMNQ8lowIJzGmaV2vpPDxWhrcB/4/ts8mLIqOd58GtY7MYhwd3L/00 Ne86BNzGrORgmgCA== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Peter Xu , Prasad Pandit Subject: [PULL 18/36] migration: Free the error earlier in the resume case Date: Fri, 23 Jan 2026 16:53:33 -0300 Message-ID: <20260123195352.12850-19-farosas@suse.de> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260123195352.12850-1-farosas@suse.de> References: <20260123195352.12850-1-farosas@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-2.80 / 50.00]; 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charset="utf-8" Freeing the error at migration_connect() is redundant in the normal migration case. The freeing already happened at migrate_init(): qmp_migrate() -> migrate_prepare() -> migrate_init() -> qmp_migrate_finish() -> *_start_outgoing_migration() -> migration_channel_connect() -> migration_connect() For the resume case, migrate_prepare() returns early and doesn't reach migrate_init(). Move the extra migrate_error_free() call to migrate_prepare() along with the resume check. Also change migrate_init() to use migrate_error_free(), so it's easier to see where are the places the error gets freed. Reviewed-by: Peter Xu Reviewed-by: Prasad Pandit Link: https://lore.kernel.org/qemu-devel/20260123141656.6765-8-farosas@suse= .de Signed-off-by: Fabiano Rosas --- migration/migration.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/migration/migration.c b/migration/migration.c index d34c31298e..93013608ef 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1808,8 +1808,8 @@ int migrate_init(MigrationState *s, Error **errp) s->setup_time =3D 0; s->start_postcopy =3D false; s->migration_thread_running =3D false; - error_free(s->error); - s->error =3D NULL; + + migrate_error_free(s); =20 if (should_send_vmdesc()) { s->vmdesc =3D json_writer_new(false); @@ -2084,6 +2084,13 @@ static bool migrate_prepare(MigrationState *s, bool = resume, Error **errp) migrate_set_state(&s->state, MIGRATION_STATUS_POSTCOPY_PAUSED, MIGRATION_STATUS_POSTCOPY_RECOVER_SETUP); =20 + /* + * If there's a previous error, free it and prepare for + * another one. For the non-resume case, this happens at + * migrate_init() below. + */ + migrate_error_free(s); + /* This is a resume, skip init status */ return true; } @@ -4007,13 +4014,6 @@ void migration_connect(MigrationState *s, Error *err= or_in) bool resume =3D (s->state =3D=3D MIGRATION_STATUS_POSTCOPY_RECOVER_SET= UP); int ret; =20 - /* - * If there's a previous error, free it and prepare for another one. - * Meanwhile if migration completes successfully, there won't have an = error - * dumped when calling migration_cleanup(). - */ - migrate_error_free(s); - s->expected_downtime =3D migrate_downtime_limit(); if (error_in) { migration_connect_error_propagate(s, error_in); --=20 2.51.0