File 0146-Check-and-remove-bitmap-first-when-reshape-to-raid0.patch of Package mdadm.5365
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
