[PATCH] ufs: make fsck -f happy

ufs super block contains some statistic about file systems, like amount of
directories, free blocks, inodes and so on.

UFS1 hold this information in one location and uses 32bit integers for such
information, UFS2 hold statistic in another location and uses 64bit integers.

There is transition variant, if UFS1 has type 44BSD and flags field in super
block has some special value this mean that we work with statistic like UFS2
does.  and this also means that nobody care about old(UFS1) statistic.

So if start fsck against such file system, after usage linux ufs driver, it
found error: at now only UFS1 like statistic is updated.

This patch should fix this.  Also it contains some minor cleanup: CodingSytle
and remove unused variables.

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 13 insertions, 1 deletions

diff --git a/include/linux/ufs_fs.h b/include/linux/ufs_fs.h
index 87b0a658bec8..9a7f9b26564d 100644
--- a/include/linux/ufs_fs.h
+++ b/include/linux/ufs_fs.h
@@ -351,6 +351,17 @@ struct ufs2_csum_total {
         __fs64   cs_spare[3];   /* future expansion */
 };
 
+/*
+ * File system flags
+ */
+#define UFS_UNCLEAN      0x01    /* file system not clean at mount (unused) */
+#define UFS_DOSOFTDEP    0x02    /* file system using soft dependencies */
+#define UFS_NEEDSFSCK    0x04    /* needs sync fsck (FreeBSD compat, unused) */
+#define UFS_INDEXDIRS    0x08    /* kernel supports indexed directories */
+#define UFS_ACLS         0x10    /* file system has ACLs enabled */
+#define UFS_MULTILABEL   0x20    /* file system is MAC multi-label */
+#define UFS_FLAGS_UPDATED 0x80   /* flags have been moved to new location */
+
 #if 0
 /*
  * This is the actual superblock, as it is laid out on the disk.
@@ -433,7 +444,7 @@ struct ufs_super_block {
         __s8    fs_fmod;        /* super block modified flag */
         __s8    fs_clean;       /* file system is clean flag */
         __s8    fs_ronly;       /* mounted read-only flag */
-        __s8    fs_flags;       /* currently unused flag */
+        __s8    fs_flags;
         union {
                 struct {
                         __s8    fs_fsmnt[UFS_MAXMNTLEN];/* name mounted on */
@@ -704,6 +715,7 @@ struct ufs_cg_private_info {
 
 struct ufs_sb_private_info {
         struct ufs_buffer_head s_ubh; /* buffer containing super block */
+        struct ufs2_csum_total cs_total;
         __u32   s_sblkno;       /* offset of super-blocks in filesys */
         __u32   s_cblkno;       /* offset of cg-block in filesys */
         __u32   s_iblkno;       /* offset of inode-blocks in filesys */