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54 lines
1.7 KiB
54 lines
1.7 KiB
From 21212f6ad7c634f5f114f342ca84fe8c42a13f40 Mon Sep 17 00:00:00 2001
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From: Xiao Ni <xni@redhat.com>
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Date: Wed, 11 Sep 2024 16:54:23 +0800
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Subject: [PATCH 174/201] mdadm/Grow: Update new level when starting reshape
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Reshape needs to specify a backup file when it can't update data offset
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of member disks. For this situation, first, it starts reshape and then
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it kicks off mdadm-grow-continue service which does backup job and
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monitors the reshape process. The service is a new process, so it needs
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to read superblock from member disks to get information.
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But in the first step, it doesn't update new level in superblock. So
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it can't change level after reshape finishes, because the new level is
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not right. So records the new level in the first step.
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Signed-off-by: Xiao Ni <xni@redhat.com>
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Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
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---
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Grow.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/Grow.c b/Grow.c
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index 5810b128..533f3014 100644
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--- a/Grow.c
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+++ b/Grow.c
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@@ -2941,15 +2941,24 @@ static int impose_reshape(struct mdinfo *sra,
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* persists from some earlier problem.
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*/
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int err = 0;
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+
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if (sysfs_set_num(sra, NULL, "chunk_size", info->new_chunk) < 0)
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err = errno;
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+
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if (!err && sysfs_set_num(sra, NULL, "layout",
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reshape->after.layout) < 0)
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err = errno;
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+
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+ /* new_level is introduced in kernel 6.12 */
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+ if (!err && get_linux_version() >= 6012000 &&
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+ sysfs_set_num(sra, NULL, "new_level", info->new_level) < 0)
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+ err = errno;
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+
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if (!err && subarray_set_num(container, sra, "raid_disks",
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reshape->after.data_disks +
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reshape->parity) < 0)
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err = errno;
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+
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if (err) {
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pr_err("Cannot set device shape for %s\n", devname);
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--
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2.41.0
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