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40 lines
1.2 KiB
40 lines
1.2 KiB
2 months ago
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From 166e5e2fc4b634df100ccc0010035f925bb2ad63 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 16:54:26 +0800
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Subject: [PATCH 177/201] mdadm/Grow: sleep a while after removing disk in
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impose_level
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It needs to remove disks when reshaping from raid456 to raid0. In
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kernel space it sets MD_RECOVERY_RUNNING. And it will fail to change
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level. So wait sometime to let md thread to clear this flag.
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This is found by test case 05r6tor0.
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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 | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/Grow.c b/Grow.c
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index ebb53a0d..60076f56 100644
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--- a/Grow.c
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+++ b/Grow.c
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@@ -3034,6 +3034,13 @@ static int impose_level(int fd, int level, char *devname, int verbose)
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makedev(disk.major, disk.minor));
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hot_remove_disk(fd, makedev(disk.major, disk.minor), 1);
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}
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+ /*
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+ * hot_remove_disk lets kernel set MD_RECOVERY_RUNNING
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+ * and it can't set level. It needs to wait sometime
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+ * to let md thread to clear the flag.
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+ */
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+ pr_info("wait 5 seconds to give kernel space to finish job\n");
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+ sleep_for(5, 0, true);
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}
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c = map_num(pers, level);
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if (c) {
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--
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2.41.0
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