Increase raid456 stripe cache size if needed to --grow the array.

The setting used unfortunately requires intimate knowledge of the
kernel, and it not reset when the reshape finishes.

1 files changed, 6 insertions, 0 deletions

diff --git a/sysfs.c b/sysfs.c
index 35b8883..166481f 100644
--- a/sysfs.c
+++ b/sysfs.c
@@ -107,6 +107,12 @@ struct sysarray *sysfs_read(int fd, int devnum, unsigned long options)
 			goto abort;
 		sra->chunk = strtoul(buf, NULL, 0);
 	}
+	if (options & GET_CACHE) {
+		strcpy(base, "stripe_cache_size");
+		if (load_sys(fname, buf))
+			goto abort;
+		sra->cache_size = strtoul(buf, NULL, 0);
+	}
 
 	if (! (options & GET_DEVS))
 		return sra;