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a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1694452419; 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=DGhGE717fUJFvyUY5vhbyY/GLiHbUzH5b0cd6j63xVg=; b=IhDUWFv3yAckTDx50sZOcXTsOVoWyfJkU98O7T83krP/OHGPqk6hRQEshNbUapJoCgHhq5 CtQ03x9NJ4kvrlCA== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Juan Quintela , Peter Xu , Leonardo Bras Subject: [PATCH v6 07/10] migration: Move return path cleanup to main migration thread Date: Mon, 11 Sep 2023 14:13:17 -0300 Message-Id: <20230911171320.24372-8-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230911171320.24372-1-farosas@suse.de> References: <20230911171320.24372-1-farosas@suse.de> MIME-Version: 1.0 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=195.135.220.29; envelope-from=farosas@suse.de; helo=smtp-out2.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, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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 @suse.de) X-ZM-MESSAGEID: 1694452528498100001 Content-Type: text/plain; charset="utf-8" Now that the return path thread is allowed to finish during a paused migration, we can move the cleanup of the QEMUFiles to the main migration thread. Reviewed-by: Peter Xu Signed-off-by: Fabiano Rosas --- migration/migration.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/migration/migration.c b/migration/migration.c index 7dfcbc3634..7fec57ad7f 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -98,6 +98,7 @@ static int migration_maybe_pause(MigrationState *s, int *current_active_state, int new_state); static void migrate_fd_cancel(MigrationState *s); +static int await_return_path_close_on_source(MigrationState *s); =20 static bool migration_needs_multiple_sockets(void) { @@ -1177,6 +1178,12 @@ static void migrate_fd_cleanup(MigrationState *s) qemu_fclose(tmp); } =20 + /* + * We already cleaned up to_dst_file, so errors from the return + * path might be due to that, ignore them. + */ + await_return_path_close_on_source(s); + assert(!migration_is_active(s)); =20 if (s->state =3D=3D MIGRATION_STATUS_CANCELLING) { @@ -1985,7 +1992,6 @@ out: } =20 trace_source_return_path_thread_end(); - migration_release_dst_files(ms); rcu_unregister_thread(); return NULL; } @@ -2039,6 +2045,9 @@ static int await_return_path_close_on_source(Migratio= nState *ms) =20 ret =3D ms->rp_state.error; ms->rp_state.error =3D false; + + migration_release_dst_files(ms); + trace_migration_return_path_end_after(ret); return ret; } --=20 2.35.3