Grow: Changing component size must be larger than current
chunk size against stripe raids, otherwise Grow_reshape()
would set s->size to '0'.
Signed-off-by: Zhilong Liu <zlliu@xxxxxxxx>
---
Grow.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Grow.c b/Grow.c
index 534ba80..f0a21ff 100644
--- a/Grow.c
+++ b/Grow.c
@@ -1816,6 +1816,12 @@ int Grow_reshape(char *devname, int fd,
return 1;
}
+ if (array.level > 1 &&
+ (array.chunk_size / 1024) > (int)s->size) {
+ pr_err("component size must be larger than chunk size.\n");
+ return 1;
+ }
+
st = super_by_fd(fd, &subarray);
if (!st) {
pr_err("Unable to determine metadata format for %s\n", devname);
--
2.6.6
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
