From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from prv3-mh.provo.novell.com (victor.provo.novell.com [137.65.250.26]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by mail09.linbit.com (LINBIT Mail Daemon) with ESMTPS id ECB4410003FC for ; Wed, 10 Jun 2015 09:49:05 +0200 (CEST) From: Nick Wang To: philipp.reisner@linbit.com, lars.ellenberg@linbit.com, drbd-dev@lists.linbit.com Date: Wed, 10 Jun 2015 15:48:21 +0800 Message-Id: <1433922509-10280-3-git-send-email-nwang@suse.com> In-Reply-To: <1433922509-10280-1-git-send-email-nwang@suse.com> References: <1433922509-10280-1-git-send-email-nwang@suse.com> Cc: linux-kernel@vger.kernel.org Subject: [Drbd-dev] [PATCH 02/10] Add options zap_devices to new-current-uuid for zeroing out device before initial sync. List-Id: "*Coordination* of development, patches, contributions -- *Questions* \(even to developers\) go to drbd-user, please." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Add zap-devices options for new-current-uuid. Need to change .h file in drbd-utils for user space. Signed-off-by: Nick Wang CC: Philipp Reisner CC: Lars Ellenberg CC: drbd-dev@lists.linbit.com CC: linux-kernel@vger.kernel.org --- drbd/drbd_nl.c | 9 +++++++++ drbd/linux/drbd_genl.h | 1 + 2 files changed, 10 insertions(+) diff --git a/drbd/drbd_nl.c b/drbd/drbd_nl.c index 9c14cf3..1ef4551 100644 --- a/drbd/drbd_nl.c +++ b/drbd/drbd_nl.c @@ -4000,6 +4000,7 @@ int drbd_adm_new_c_uuid(struct sk_buff *skb, struct genl_info *info) struct drbd_device *device; enum drbd_ret_code retcode; int skip_initial_sync = 0; + int zero_out_devices = 0; int err; struct new_c_uuid_parms args; @@ -4034,6 +4035,14 @@ int drbd_adm_new_c_uuid(struct sk_buff *skb, struct genl_info *info) device->ldev->md.uuid[UI_CURRENT] == UUID_JUST_CREATED && args.clear_bm) { drbd_info(device, "Preparing to skip initial sync\n"); skip_initial_sync = 1; + /* this is "zero out" devices to make it all zero. + * ignore "zero out" if both "clear_bm" and "zap_devices" set. */ + } else if (device->state.conn == C_CONNECTED && + first_peer_device(device)->connection->agreed_pro_version >= 90 && + device->ldev->md.uuid[UI_CURRENT] == UUID_JUST_CREATED && + args.zap_devices) { + drbd_info(device, "Preparing to zero out devices, will take a long time\n"); + zero_out_devices = 1; } else if (device->state.conn != C_STANDALONE) { retcode = ERR_CONNECTED; goto out_dec; diff --git a/drbd/linux/drbd_genl.h b/drbd/linux/drbd_genl.h index 5db53f5..eef8d8c 100644 --- a/drbd/linux/drbd_genl.h +++ b/drbd/linux/drbd_genl.h @@ -240,6 +240,7 @@ GENL_struct(DRBD_NLA_START_OV_PARMS, 9, start_ov_parms, GENL_struct(DRBD_NLA_NEW_C_UUID_PARMS, 10, new_c_uuid_parms, __flg_field(1, DRBD_GENLA_F_MANDATORY, clear_bm) + __flg_field(2, DRBD_GENLA_F_MANDATORY, zap_devices) ) GENL_struct(DRBD_NLA_TIMEOUT_PARMS, 11, timeout_parms, -- 1.8.4.5