Blame SOURCES/mdadm-Build1-check-the-level-parameter-when-build-new.patch
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From 1b4944f3a1e135871437cc33c26539028e6da5d6 Mon Sep 17 00:00:00 2001
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From: Zhilong Liu <zlliu@suse.com>
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Date: Tue, 28 Mar 2017 21:52:27 +0800
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Subject: [RHEL7.5 PATCH 021/169] mdadm/Build:check the level parameter
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when build new array
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check if user forgets to specify the --level
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when build a new array. such as:
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./mdadm -B /dev/md0 -n2 /dev/loop[0-1]
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Signed-off-by: Zhilong Liu <zlliu@suse.com>
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Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
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---
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Build.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/Build.c b/Build.c
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index 74a440e..a5fcc06 100644
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--- a/Build.c
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+++ b/Build.c
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@@ -56,6 +56,10 @@ int Build(char *mddev, struct mddev_dev *devlist,
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int uuid[4] = {0,0,0,0};
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struct map_ent *map = NULL;
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+ if (s->level == UnSet) {
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+ pr_err("a RAID level is needed to Build an array.\n");
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+ return 1;
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+ }
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/* scan all devices, make sure they really are block devices */
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for (dv = devlist; dv; dv=dv->next) {
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subdevs++;
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--
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2.7.4
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