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55 lines
1.8 KiB
55 lines
1.8 KiB
From 9d67f6496c71efbc68b33aea663dbcc1597a0828 Mon Sep 17 00:00:00 2001 |
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From: Zhilong Liu <zlliu@suse.com> |
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Date: Wed, 1 Mar 2017 18:42:33 +0800 |
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Subject: [RHEL7.5 PATCH 005/169] mdadm:check the nodes when operate |
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clustered array |
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It doesn't make sense to write_bitmap with less than 2 nodes, |
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in order to avoid 'write_bitmap' received invalid nodes number, |
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it would be better to do checking nodes in getopt operations. |
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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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mdadm.c | 4 ++-- |
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super1.c | 9 +-------- |
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2 files changed, 3 insertions(+), 10 deletions(-) |
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diff --git a/mdadm.c b/mdadm.c |
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index 16fd49a..b5ac061 100644 |
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--- a/mdadm.c |
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+++ b/mdadm.c |
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@@ -603,8 +603,8 @@ int main(int argc, char *argv[]) |
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case O(GROW, Nodes): |
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case O(CREATE, Nodes): |
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c.nodes = parse_num(optarg); |
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- if (c.nodes <= 0) { |
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- pr_err("invalid number for the number of cluster nodes: %s\n", |
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+ if (c.nodes < 2) { |
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+ pr_err("clustered array needs two nodes at least: %s\n", |
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optarg); |
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exit(2); |
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} |
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diff --git a/super1.c b/super1.c |
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index 87a74cb..882cd61 100644 |
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--- a/super1.c |
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+++ b/super1.c |
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@@ -2380,14 +2380,7 @@ static int write_bitmap1(struct supertype *st, int fd, enum bitmap_update update |
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} |
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if (bms->version == BITMAP_MAJOR_CLUSTERED) { |
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- if (st->nodes == 1) { |
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- /* the parameter for nodes is not valid */ |
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- pr_err("Warning: cluster-md at least needs two nodes\n"); |
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- return -EINVAL; |
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- } else if (st->nodes == 0) |
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- /* --nodes is not specified */ |
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- break; |
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- else if (__cpu_to_le32(st->nodes) < bms->nodes) { |
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+ if (__cpu_to_le32(st->nodes) < bms->nodes) { |
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/* Since the nodes num is not increased, no need to check the space |
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* is enough or not, just update bms->nodes */ |
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bms->nodes = __cpu_to_le32(st->nodes); |
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-- |
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2.7.4 |
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