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Mon, 8 Jun 2020 08:38:30 +0000 (UTC) Received: from huawei.com (szxga06-in.huawei.com [45.249.212.32]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-484-F3i0EakaNymIH-Wm3qkMCA-1; Mon, 08 Jun 2020 04:38:27 -0400 X-MC-Unique: F3i0EakaNymIH-Wm3qkMCA-1 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id B99A6F025B8186699B03; Mon, 8 Jun 2020 16:38:21 +0800 (CST) Received: from localhost.localdomain (10.90.53.225) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.487.0; Mon, 8 Jun 2020 16:38:11 +0800 From: yangerkun To: , , Date: Mon, 8 Jun 2020 16:45:12 +0800 Message-ID: <20200608084513.115671-2-yangerkun@huawei.com> In-Reply-To: <20200608084513.115671-1-yangerkun@huawei.com> References: <20200608084513.115671-1-yangerkun@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.90.53.225] X-CFilter-Loop: Reflected X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-MIME-Autoconverted: from quoted-printable to 8bit by lists01.pubmisc.prod.ext.phx2.redhat.com id 0588cXKO019780 X-loop: dm-devel@redhat.com X-Mailman-Approved-At: Mon, 08 Jun 2020 08:11:03 -0400 Cc: dm-devel@redhat.com, yangerkun@huawei.com Subject: [dm-devel] [PATCH 1/2] dm dust: add interface to list all badblocks X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com This interface may help anyone want to know all badblocks without query block one by one. Signed-off-by: yangerkun Reviewed-by: Bryan Gurney --- drivers/md/dm-dust.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/md/dm-dust.c b/drivers/md/dm-dust.c index ff03b90072c5..da5c10605c59 100644 --- a/drivers/md/dm-dust.c +++ b/drivers/md/dm-dust.c @@ -280,6 +280,24 @@ static int dust_clear_badblocks(struct dust_device *dd) return 0; } +static void dust_list_badblocks(struct dust_device *dd) +{ + unsigned long flags; + struct rb_root badblocklist; + struct rb_node *node; + struct badblock *bblk; + + DMINFO("%s: badblocks list below:", __func__); + spin_lock_irqsave(&dd->dust_lock, flags); + badblocklist = dd->badblocklist; + for (node = rb_first(&badblocklist); node; node = rb_next(node)) { + bblk = rb_entry(node, struct badblock, node); + DMINFO("bad block: %llu", bblk->bb); + } + spin_unlock_irqrestore(&dd->dust_lock, flags); + DMINFO("%s: badblocks list end.", __func__); +} + /* * Target parameters: * @@ -422,6 +440,9 @@ static int dust_message(struct dm_target *ti, unsigned int argc, char **argv, else dd->quiet_mode = false; r = 0; + } else if (!strcasecmp(argv[0], "listbadblocks")) { + dust_list_badblocks(dd); + r = 0; } else { invalid_msg = true; }