From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: linux-nfs-owner@vger.kernel.org Received: from casper.infradead.org ([85.118.1.10]:45806 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753591AbaHGHYc (ORCPT ); Thu, 7 Aug 2014 03:24:32 -0400 Received: from [83.175.99.196] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.80.1 #2 (Red Hat Linux)) id 1XFI3r-0006zj-1O for linux-nfs@vger.kernel.org; Thu, 07 Aug 2014 07:24:31 +0000 From: Christoph Hellwig To: linux-nfs@vger.kernel.org Subject: [PATCH 2/2] blkmapd: dump useful device information to syslog Date: Thu, 7 Aug 2014 09:26:49 +0200 Message-Id: <1407396409-5036-3-git-send-email-hch@lst.de> In-Reply-To: <1407396409-5036-1-git-send-email-hch@lst.de> References: <1407396409-5036-1-git-send-email-hch@lst.de> Sender: linux-nfs-owner@vger.kernel.org List-ID: Dump some information about used devices to syslog so that an admin can troubleshoot failing blocklayout mounts. Signed-off-by: Christoph Hellwig --- utils/blkmapd/device-discovery.c | 6 +++++- utils/blkmapd/device-process.c | 2 ++ utils/blkmapd/dm-device.c | 4 ++++ 3 files changed, 11 insertions(+), 1 deletion(-) diff --git a/utils/blkmapd/device-discovery.c b/utils/blkmapd/device-discovery.c index bcfb060..b52afe2 100644 --- a/utils/blkmapd/device-discovery.c +++ b/utils/blkmapd/device-discovery.c @@ -148,7 +148,11 @@ void bl_add_disk(char *filepath) dev = sb.st_rdev; serial = bldev_read_serial(fd, filepath); - if (dm_is_dm_major(major(dev))) + if (!serial) { + BL_LOG_ERR("%s: no serial found for %s\n", + __func__, filepath); + ap_state = BL_PATH_STATE_PASSIVE; + } else if (dm_is_dm_major(major(dev))) ap_state = BL_PATH_STATE_PSEUDO; else ap_state = bldev_read_ap_state(fd); diff --git a/utils/blkmapd/device-process.c b/utils/blkmapd/device-process.c index 5fe3dff..f53a616 100644 --- a/utils/blkmapd/device-process.c +++ b/utils/blkmapd/device-process.c @@ -181,6 +181,8 @@ static int map_sig_to_device(struct bl_sig *sig, struct bl_volume *vol) /* FIXME: should we use better algorithm for disk scan? */ mapped = verify_sig(disk, sig); if (mapped) { + BL_LOG_INFO("%s: using device %s\n", + __func__, disk->valid_path->full_path); vol->param.bv_dev = disk->dev; vol->bv_size = disk->size; break; diff --git a/utils/blkmapd/dm-device.c b/utils/blkmapd/dm-device.c index 0f4f148..8ffb19e 100644 --- a/utils/blkmapd/dm-device.c +++ b/utils/blkmapd/dm-device.c @@ -400,6 +400,8 @@ uint64_t dm_device_create(struct bl_volume *vols, int num_vols) } dev = node->bv_vols[0]->param.bv_dev; tmp = table->params; + BL_LOG_INFO("%s: major %u minor %u", __func__, + MAJOR(dev), MINOR(dev)); if (!dm_format_dev(tmp, DM_PARAMS_LEN, MAJOR(dev), MINOR(dev))) { free(table); @@ -459,6 +461,8 @@ uint64_t dm_device_create(struct bl_volume *vols, int num_vols) strcpy(table->target_type, "linear"); tmp = table->params; dev = node->bv_vols[i]->param.bv_dev; + BL_LOG_INFO("%s: major %u minor %u", __func__, + MAJOR(dev), MINOR(dev)); if (!dm_format_dev(tmp, DM_PARAMS_LEN, MAJOR(dev), MINOR(dev))) { free(table); -- 1.9.1