When reshape process is guarded by metadata specific checkpointing,
backup file is no longer necessary.
Remove backup file requirement from mdadm command line when reshape_super
and manage reshape_super are defined for external metadata case.
Signed-off-by: Adam Kwolek <adam.kwolek@xxxxxxxxx>
---
Grow.c | 25 +++++++++++++++++--------
1 files changed, 17 insertions(+), 8 deletions(-)
diff --git a/Grow.c b/Grow.c
index 7253e5a..fdc5bfd 100644
--- a/Grow.c
+++ b/Grow.c
@@ -1659,6 +1659,11 @@ int Grow_reshape(char *devname, int fd, int quiet, char *backup_file,
goto release;
}
if (backup_file == NULL) {
+ int backup_file_required_for_external;
+
+ backup_file_required_for_external = st->ss->external &&
+ st->ss->reshape_super && st->ss->manage_reshape;
+
if (st->ss->external && !st->ss->manage_reshape) {
fprintf(stderr, Name ": %s Grow operation not supported by %s metadata\n",
devname, st->ss->name);
@@ -1666,10 +1671,12 @@ int Grow_reshape(char *devname, int fd, int quiet, char *backup_file,
break;
}
if (ndata <= odata) {
- fprintf(stderr, Name ": %s: Cannot grow - need backup-file\n",
- devname);
- rv = 1;
- break;
+ if (!backup_file_required_for_external) {
+ fprintf(stderr, Name ": %s: Cannot grow - need backup-file\n",
+ devname);
+ rv = 1;
+ break;
+ }
} else if (sra->array.spare_disks == 0) {
fprintf(stderr, Name ": %s: Cannot grow - need a spare or "
"backup-file to backup critical section\n",
@@ -1678,10 +1685,12 @@ int Grow_reshape(char *devname, int fd, int quiet, char *backup_file,
break;
}
if (d == array.raid_disks) {
- fprintf(stderr, Name ": %s: No spare device for backup\n",
- devname);
- rv = 1;
- break;
+ if (!backup_file_required_for_external) {
+ fprintf(stderr, Name ": %s: No spare device for backup\n",
+ devname);
+ rv = 1;
+ break;
+ }
}
} else {
/* need to check backup file is large enough */
--
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