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-rw-r--r--fs/btrfs/super.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 2dc4a6fcd7..b693a073fc 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -7,6 +7,7 @@
#include "btrfs.h"
#include <memalign.h>
+#include <linux/compat.h>
#define BTRFS_SUPER_FLAG_SUPP (BTRFS_HEADER_FLAG_WRITTEN \
| BTRFS_HEADER_FLAG_RELOC \
@@ -232,6 +233,13 @@ int btrfs_read_superblock(void)
return -1;
}
+ if (sb->sectorsize != PAGE_SIZE) {
+ printf(
+ "%s: Unsupported sector size (%u), only supports %u as sector size\n",
+ __func__, sb->sectorsize, PAGE_SIZE);
+ return -1;
+ }
+
if (btrfs_info.sb.num_devices != 1) {
printf("%s: Unsupported number of devices (%lli). This driver "
"only supports filesystem on one device.\n", __func__,