File 0146-Check-and-remove-bitmap-first-when-reshape... of Package mdadm

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File 0146-Check-and-remove-bitmap-first-when-reshape-to-raid0.patch of Package mdadm

From f7cf9699dc0570ab4bce6d077ba51c329644cf7e Mon Sep 17 00:00:00 2001
From: Xiao Ni <xni@redhat.com>
Date: Tue, 22 Dec 2015 11:09:34 +0800
Subject: [PATCH 201/359] Check and remove bitmap first when reshape to raid0
References: bsc#1081910

If reshape one raid device with bitmap to raid0, the reshape progress will
start. But it'll fail and lose some components. So it should remove bitmap
first.

Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Coly Li <colyli@suse.de>

---
 Grow.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Grow.c b/Grow.c
index 6dfb9c9..89e4c34 100755
--- a/Grow.c
+++ b/Grow.c
@@ -1590,6 +1590,15 @@ int Grow_reshape(char *devname, int fd,
 		pr_err("Cannot increase raid-disks on this array beyond %d\n", st->max_devs);
 		return 1;
 	}
+	if (s->level == 0 &&
+	    (array.state & (1<<MD_SB_BITMAP_PRESENT)) &&
+	    !(array.state & (1<<MD_SB_CLUSTERED))) {
+                array.state &= ~(1<<MD_SB_BITMAP_PRESENT);
+                if (ioctl(fd, SET_ARRAY_INFO, &array)!= 0) {
+                        pr_err("failed to remove internal bitmap.\n");
+                        return 1;
+                }
+        }
 
 	/* in the external case we need to check that the requested reshape is
 	 * supported, and perform an initial check that the container holds the
-- 
2.16.1

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File 0146-Check-and-remove-bitmap-first-when-reshape-to-raid0.patch of Package mdadm

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