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-rw-r--r--fs/ext4/ext4.h20
1 files changed, 17 insertions, 3 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 0f0edd1cd0cd..caff935fbeb8 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -43,6 +43,17 @@
#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_EXT4_FS_ENCRYPTION)
#include <linux/fscrypt.h>
+#include <linux/compiler.h>
+
+/* Until this gets included into linux/compiler-gcc.h */
+#ifndef __nonstring
+#if defined(GCC_VERSION) && (GCC_VERSION >= 80000)
+#define __nonstring __attribute__((nonstring))
+#else
+#define __nonstring
+#endif
+#endif
+
/*
* The fourth extended filesystem constants/structures
*/
@@ -675,6 +686,9 @@ enum {
/* Max physical block we can address w/o extents */
#define EXT4_MAX_BLOCK_FILE_PHYS 0xFFFFFFFF
+/* Max logical block we can support */
+#define EXT4_MAX_LOGICAL_BLOCK 0xFFFFFFFF
+
/*
* Structure of an inode on the disk
*/
@@ -1226,7 +1240,7 @@ struct ext4_super_block {
__le32 s_feature_ro_compat; /* readonly-compatible feature set */
/*68*/ __u8 s_uuid[16]; /* 128-bit uuid for volume */
/*78*/ char s_volume_name[16]; /* volume name */
-/*88*/ char s_last_mounted[64]; /* directory where last mounted */
+/*88*/ char s_last_mounted[64] __nonstring; /* directory where last mounted */
/*C8*/ __le32 s_algorithm_usage_bitmap; /* For compression */
/*
* Performance hints. Directory preallocation should only
@@ -1277,13 +1291,13 @@ struct ext4_super_block {
__le32 s_first_error_time; /* first time an error happened */
__le32 s_first_error_ino; /* inode involved in first error */
__le64 s_first_error_block; /* block involved of first error */
- __u8 s_first_error_func[32]; /* function where the error happened */
+ __u8 s_first_error_func[32] __nonstring; /* function where the error happened */
__le32 s_first_error_line; /* line number where error happened */
__le32 s_last_error_time; /* most recent time of an error */
__le32 s_last_error_ino; /* inode involved in last error */
__le32 s_last_error_line; /* line number where error happened */
__le64 s_last_error_block; /* block involved of last error */
- __u8 s_last_error_func[32]; /* function where the error happened */
+ __u8 s_last_error_func[32] __nonstring; /* function where the error happened */
#define EXT4_S_ERR_END offsetof(struct ext4_super_block, s_mount_opts)
__u8 s_mount_opts[64];
__le32 s_usr_quota_inum; /* inode for tracking user quota */