(Online Capacity Expansion for IMSM)
To use Online Capacity Expansion with IMSM's metadata mdadm has to be compiled with EXPERIMENTAL flag.
Signed-off-by: Adam Kwolek <adam.kwolek@xxxxxxxxx>
---
super-intel.c | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/super-intel.c b/super-intel.c index db4055d..2cba6af 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -194,6 +194,16 @@ struct bbm_log {
static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" }; #endif
+static inline int experimental(void)
+{
+#ifdef EXPERIMENTAL
+ return 1;
+#else
+ fprintf(stderr, Name "(IMSM): To use this feature EXPERIMENTAL compilation flag has to be used.\n");
+ return 0;
+#endif
+}
+
static __u8 migr_type(struct imsm_dev *dev) {
if (dev->vol.migr_type == MIGR_VERIFY && @@ -1751,6 +1761,11 @@ static int update_super_imsm(struct supertype *st, struct mdinfo *info,
int len;
char *p;
+ if (experimental() == 0) {
+ dprintf("imsm: Error: Operation not supported (mdadm: update_grow_array)\n");
+ return 1;
+ }
+
/* prepare metadata update
*/
--
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