tree 6c91bdbbe527682813d7c27ed13bdb0531298146
parent 383f2835eb9afb723af71850037b2f074ac9db60
author Andrew Stribblehill <[EMAIL PROTECTED]> Sat, 10 Sep 2005 03:02:04 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Sat, 10 Sep 2005 03:57:32 -0700

[PATCH] bfs: fix endianness, signedness; add trivial bugfix

* Makes BFS code endianness-clean.

* Fixes some signedness warnings.

* Fixes a problem in fs/bfs/inode.c:164 where inodes not synced to disk
  don't get fully marked as clean.  Here's how to reproduce it:

# mount -o loop -t bfs /bfs.img /mnt
# df -i /mnt
Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/bfs.img                  48       1      47    3% /mnt
# df -k /mnt
Filesystem           1K-blocks      Used Available Use% Mounted on
/bfs.img                   512         5       508   1% /mnt
# cp 60k-archive.zip /mnt/mt.zip
# df -k /mnt
Filesystem           1K-blocks      Used Available Use% Mounted on
/bfs.img                   512        65       447  13% /mnt
# df -i /mnt
Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/bfs.img                  48       2      46    5% /mnt
# rm /mnt/mt.zip
# echo $?
0

 [If the unlink happens before the buffers flush, the following happens:]

# df -i /mnt
Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/bfs.img                  48       2      46    5% /mnt
# df -k /mnt
Filesystem           1K-blocks      Used Available Use% Mounted on
/bfs.img                   512        65       447  13% /mnt

 fs/bfs/bfs.h           |    1

Signed-off-by: Andrew Stribblehill <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>

 fs/bfs/bfs.h           |    1 
 fs/bfs/dir.c           |   25 ++++++------
 fs/bfs/file.c          |   23 ++++++-----
 fs/bfs/inode.c         |  100 ++++++++++++++++++++++++++-----------------------
 include/linux/bfs_fs.h |   23 +++++------
 5 files changed, 92 insertions(+), 80 deletions(-)

diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -20,7 +20,6 @@ struct bfs_sb_info {
        unsigned long si_lasti;
        unsigned long * si_imap;
        struct buffer_head * si_sbh;            /* buffer header w/superblock */
-       struct bfs_super_block * si_bfs_sb;     /* superblock in si_sbh->b_data 
*/
 };
 
 /*
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -2,6 +2,7 @@
  *     fs/bfs/dir.c
  *     BFS directory operations.
  *     Copyright (C) 1999,2000  Tigran Aivazian <[EMAIL PROTECTED]>
+ *      Made endianness-clean by Andrew Stribblehill <[EMAIL PROTECTED]> 2005
  */
 
 #include <linux/time.h>
@@ -20,9 +21,9 @@
 #define dprintf(x...)
 #endif
 
-static int bfs_add_entry(struct inode * dir, const char * name, int namelen, 
int ino);
+static int bfs_add_entry(struct inode * dir, const unsigned char * name, int 
namelen, int ino);
 static struct buffer_head * bfs_find_entry(struct inode * dir, 
-       const char * name, int namelen, struct bfs_dirent ** res_dir);
+       const unsigned char * name, int namelen, struct bfs_dirent ** res_dir);
 
 static int bfs_readdir(struct file * f, void * dirent, filldir_t filldir)
 {
@@ -53,7 +54,7 @@ static int bfs_readdir(struct file * f, 
                        de = (struct bfs_dirent *)(bh->b_data + offset);
                        if (de->ino) {
                                int size = strnlen(de->name, BFS_NAMELEN);
-                               if (filldir(dirent, de->name, size, f->f_pos, 
de->ino, DT_UNKNOWN) < 0) {
+                               if (filldir(dirent, de->name, size, f->f_pos, 
le16_to_cpu(de->ino), DT_UNKNOWN) < 0) {
                                        brelse(bh);
                                        unlock_kernel();
                                        return 0;
@@ -107,7 +108,7 @@ static int bfs_create(struct inode * dir
        inode->i_mapping->a_ops = &bfs_aops;
        inode->i_mode = mode;
        inode->i_ino = ino;
-       BFS_I(inode)->i_dsk_ino = ino;
+       BFS_I(inode)->i_dsk_ino = cpu_to_le16(ino);
        BFS_I(inode)->i_sblock = 0;
        BFS_I(inode)->i_eblock = 0;
        insert_inode_hash(inode);
@@ -139,7 +140,7 @@ static struct dentry * bfs_lookup(struct
        lock_kernel();
        bh = bfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &de);
        if (bh) {
-               unsigned long ino = le32_to_cpu(de->ino);
+               unsigned long ino = (unsigned long)le16_to_cpu(de->ino);
                brelse(bh);
                inode = iget(dir->i_sb, ino);
                if (!inode) {
@@ -183,7 +184,7 @@ static int bfs_unlink(struct inode * dir
        inode = dentry->d_inode;
        lock_kernel();
        bh = bfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &de);
-       if (!bh || de->ino != inode->i_ino) 
+       if (!bh || le16_to_cpu(de->ino) != inode->i_ino)
                goto out_brelse;
 
        if (!inode->i_nlink) {
@@ -224,7 +225,7 @@ static int bfs_rename(struct inode * old
                                old_dentry->d_name.name, 
                                old_dentry->d_name.len, &old_de);
 
-       if (!old_bh || old_de->ino != old_inode->i_ino)
+       if (!old_bh || le16_to_cpu(old_de->ino) != old_inode->i_ino)
                goto end_rename;
 
        error = -EPERM;
@@ -270,7 +271,7 @@ struct inode_operations bfs_dir_inops = 
        .rename                 = bfs_rename,
 };
 
-static int bfs_add_entry(struct inode * dir, const char * name, int namelen, 
int ino)
+static int bfs_add_entry(struct inode * dir, const unsigned char * name, int 
namelen, int ino)
 {
        struct buffer_head * bh;
        struct bfs_dirent * de;
@@ -304,7 +305,7 @@ static int bfs_add_entry(struct inode * 
                                }
                                dir->i_mtime = CURRENT_TIME_SEC;
                                mark_inode_dirty(dir);
-                               de->ino = ino;
+                               de->ino = cpu_to_le16((u16)ino);
                                for (i=0; i<BFS_NAMELEN; i++)
                                        de->name[i] = (i < namelen) ? name[i] : 
0;
                                mark_buffer_dirty(bh);
@@ -317,7 +318,7 @@ static int bfs_add_entry(struct inode * 
        return -ENOSPC;
 }
 
-static inline int bfs_namecmp(int len, const char * name, const char * buffer)
+static inline int bfs_namecmp(int len, const unsigned char * name, const char 
* buffer)
 {
        if (len < BFS_NAMELEN && buffer[len])
                return 0;
@@ -325,7 +326,7 @@ static inline int bfs_namecmp(int len, c
 }
 
 static struct buffer_head * bfs_find_entry(struct inode * dir, 
-       const char * name, int namelen, struct bfs_dirent ** res_dir)
+       const unsigned char * name, int namelen, struct bfs_dirent ** res_dir)
 {
        unsigned long block, offset;
        struct buffer_head * bh;
@@ -346,7 +347,7 @@ static struct buffer_head * bfs_find_ent
                }
                de = (struct bfs_dirent *)(bh->b_data + offset);
                offset += BFS_DIRENT_SIZE;
-               if (de->ino && bfs_namecmp(namelen, name, de->name)) {
+               if (le16_to_cpu(de->ino) && bfs_namecmp(namelen, name, 
de->name)) {
                        *res_dir = de;
                        return bh;
                }
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -40,8 +40,8 @@ static int bfs_move_block(unsigned long 
        return 0;
 }
 
-static int bfs_move_blocks(struct super_block *sb, unsigned long start, 
unsigned long end, 
-                               unsigned long where)
+static int bfs_move_blocks(struct super_block *sb, unsigned long start,
+                           unsigned long end, unsigned long where)
 {
        unsigned long i;
 
@@ -57,20 +57,21 @@ static int bfs_move_blocks(struct super_
 static int bfs_get_block(struct inode * inode, sector_t block, 
        struct buffer_head * bh_result, int create)
 {
-       long phys;
+       unsigned long phys;
        int err;
        struct super_block *sb = inode->i_sb;
        struct bfs_sb_info *info = BFS_SB(sb);
        struct bfs_inode_info *bi = BFS_I(inode);
        struct buffer_head *sbh = info->si_sbh;
 
-       if (block < 0 || block > info->si_blocks)
+       if (block > info->si_blocks)
                return -EIO;
 
        phys = bi->i_sblock + block;
        if (!create) {
                if (phys <= bi->i_eblock) {
-                       dprintf("c=%d, b=%08lx, phys=%08lx (granted)\n", 
create, block, phys);
+                       dprintf("c=%d, b=%08lx, phys=%09lx (granted)\n",
+                                create, (unsigned long)block, phys);
                        map_bh(bh_result, sb, phys);
                }
                return 0;
@@ -80,7 +81,7 @@ static int bfs_get_block(struct inode * 
           of blocks allocated for this file, we can grant it */
        if (inode->i_size && phys <= bi->i_eblock) {
                dprintf("c=%d, b=%08lx, phys=%08lx (interim block granted)\n", 
-                               create, block, phys);
+                               create, (unsigned long)block, phys);
                map_bh(bh_result, sb, phys);
                return 0;
        }
@@ -88,11 +89,12 @@ static int bfs_get_block(struct inode * 
        /* the rest has to be protected against itself */
        lock_kernel();
 
-       /* if the last data block for this file is the last allocated block, we 
can
-          extend the file trivially, without moving it anywhere */
+       /* if the last data block for this file is the last allocated
+          block, we can extend the file trivially, without moving it
+          anywhere */
        if (bi->i_eblock == info->si_lf_eblk) {
                dprintf("c=%d, b=%08lx, phys=%08lx (simple extension)\n", 
-                               create, block, phys);
+                               create, (unsigned long)block, phys);
                map_bh(bh_result, sb, phys);
                info->si_freeb -= phys - bi->i_eblock;
                info->si_lf_eblk = bi->i_eblock = phys;
@@ -114,7 +116,8 @@ static int bfs_get_block(struct inode * 
        } else
                err = 0;
 
-       dprintf("c=%d, b=%08lx, phys=%08lx (moved)\n", create, block, phys);
+       dprintf("c=%d, b=%08lx, phys=%08lx (moved)\n",
+                create, (unsigned long)block, phys);
        bi->i_sblock = phys;
        phys += block;
        info->si_lf_eblk = bi->i_eblock = phys;
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -3,6 +3,8 @@
  *     BFS superblock and inode operations.
  *     Copyright (C) 1999,2000 Tigran Aivazian <[EMAIL PROTECTED]>
  *     From fs/minix, Copyright (C) 1991, 1992 Linus Torvalds.
+ *
+ *      Made endianness-clean by Andrew Stribblehill <[EMAIL PROTECTED]>, 2005.
  */
 
 #include <linux/module.h>
@@ -54,46 +56,50 @@ static void bfs_read_inode(struct inode 
        off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
        di = (struct bfs_inode *)bh->b_data + off;
 
-       inode->i_mode = 0x0000FFFF & di->i_mode;
-       if (di->i_vtype == BFS_VDIR) {
+       inode->i_mode = 0x0000FFFF &  le32_to_cpu(di->i_mode);
+       if (le32_to_cpu(di->i_vtype) == BFS_VDIR) {
                inode->i_mode |= S_IFDIR;
                inode->i_op = &bfs_dir_inops;
                inode->i_fop = &bfs_dir_operations;
-       } else if (di->i_vtype == BFS_VREG) {
+       } else if (le32_to_cpu(di->i_vtype) == BFS_VREG) {
                inode->i_mode |= S_IFREG;
                inode->i_op = &bfs_file_inops;
                inode->i_fop = &bfs_file_operations;
                inode->i_mapping->a_ops = &bfs_aops;
        }
 
-       inode->i_uid = di->i_uid;
-       inode->i_gid = di->i_gid;
-       inode->i_nlink = di->i_nlink;
+       BFS_I(inode)->i_sblock =  le32_to_cpu(di->i_sblock);
+       BFS_I(inode)->i_eblock =  le32_to_cpu(di->i_eblock);
+       inode->i_uid =  le32_to_cpu(di->i_uid);
+       inode->i_gid =  le32_to_cpu(di->i_gid);
+       inode->i_nlink =  le32_to_cpu(di->i_nlink);
        inode->i_size = BFS_FILESIZE(di);
        inode->i_blocks = BFS_FILEBLOCKS(di);
+        if (inode->i_size || inode->i_blocks) dprintf("Registered inode with 
%lld size, %ld blocks\n", inode->i_size, inode->i_blocks);
        inode->i_blksize = PAGE_SIZE;
-       inode->i_atime.tv_sec = di->i_atime;
-       inode->i_mtime.tv_sec = di->i_mtime;
-       inode->i_ctime.tv_sec = di->i_ctime;
+       inode->i_atime.tv_sec =  le32_to_cpu(di->i_atime);
+       inode->i_mtime.tv_sec =  le32_to_cpu(di->i_mtime);
+       inode->i_ctime.tv_sec =  le32_to_cpu(di->i_ctime);
        inode->i_atime.tv_nsec = 0;
        inode->i_mtime.tv_nsec = 0;
        inode->i_ctime.tv_nsec = 0;
-       BFS_I(inode)->i_dsk_ino = di->i_ino; /* can be 0 so we store a copy */
-       BFS_I(inode)->i_sblock = di->i_sblock;
-       BFS_I(inode)->i_eblock = di->i_eblock;
+       BFS_I(inode)->i_dsk_ino = le16_to_cpu(di->i_ino); /* can be 0 so we 
store a copy */
 
        brelse(bh);
 }
 
 static int bfs_write_inode(struct inode * inode, int unused)
 {
-       unsigned long ino = inode->i_ino;
+       unsigned int ino = (u16)inode->i_ino;
+        unsigned long i_sblock;
        struct bfs_inode * di;
        struct buffer_head * bh;
        int block, off;
 
+        dprintf("ino=%08x\n", ino);
+
        if (ino < BFS_ROOT_INO || ino > BFS_SB(inode->i_sb)->si_lasti) {
-               printf("Bad inode number %s:%08lx\n", inode->i_sb->s_id, ino);
+               printf("Bad inode number %s:%08x\n", inode->i_sb->s_id, ino);
                return -EIO;
        }
 
@@ -101,7 +107,7 @@ static int bfs_write_inode(struct inode 
        block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
        bh = sb_bread(inode->i_sb, block);
        if (!bh) {
-               printf("Unable to read inode %s:%08lx\n", inode->i_sb->s_id, 
ino);
+               printf("Unable to read inode %s:%08x\n", inode->i_sb->s_id, 
ino);
                unlock_kernel();
                return -EIO;
        }
@@ -109,24 +115,26 @@ static int bfs_write_inode(struct inode 
        off = (ino - BFS_ROOT_INO)%BFS_INODES_PER_BLOCK;
        di = (struct bfs_inode *)bh->b_data + off;
 
-       if (inode->i_ino == BFS_ROOT_INO)
-               di->i_vtype = BFS_VDIR;
+       if (ino == BFS_ROOT_INO)
+               di->i_vtype = cpu_to_le32(BFS_VDIR);
        else
-               di->i_vtype = BFS_VREG;
+               di->i_vtype = cpu_to_le32(BFS_VREG);
 
-       di->i_ino = inode->i_ino;
-       di->i_mode = inode->i_mode;
-       di->i_uid = inode->i_uid;
-       di->i_gid = inode->i_gid;
-       di->i_nlink = inode->i_nlink;
-       di->i_atime = inode->i_atime.tv_sec;
-       di->i_mtime = inode->i_mtime.tv_sec;
-       di->i_ctime = inode->i_ctime.tv_sec;
-       di->i_sblock = BFS_I(inode)->i_sblock;
-       di->i_eblock = BFS_I(inode)->i_eblock;
-       di->i_eoffset = di->i_sblock * BFS_BSIZE + inode->i_size - 1;
+       di->i_ino = cpu_to_le16(ino);
+       di->i_mode = cpu_to_le32(inode->i_mode);
+       di->i_uid = cpu_to_le32(inode->i_uid);
+       di->i_gid = cpu_to_le32(inode->i_gid);
+       di->i_nlink = cpu_to_le32(inode->i_nlink);
+       di->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
+       di->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec);
+       di->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec);
+        i_sblock = BFS_I(inode)->i_sblock;
+       di->i_sblock = cpu_to_le32(i_sblock);
+       di->i_eblock = cpu_to_le32(BFS_I(inode)->i_eblock);
+       di->i_eoffset = cpu_to_le32(i_sblock * BFS_BSIZE + inode->i_size - 1);
 
        mark_buffer_dirty(bh);
+        dprintf("Written ino=%d into 
%d:%d\n",le16_to_cpu(di->i_ino),block,off);
        brelse(bh);
        unlock_kernel();
        return 0;
@@ -140,13 +148,14 @@ static void bfs_delete_inode(struct inod
        int block, off;
        struct super_block * s = inode->i_sb;
        struct bfs_sb_info * info = BFS_SB(s);
+       struct bfs_inode_info * bi = BFS_I(inode);
 
-       dprintf("ino=%08lx\n", inode->i_ino);
+       dprintf("ino=%08lx\n", ino);
 
        truncate_inode_pages(&inode->i_data, 0);
 
-       if (inode->i_ino < BFS_ROOT_INO || inode->i_ino > info->si_lasti) {
-               printf("invalid ino=%08lx\n", inode->i_ino);
+       if (ino < BFS_ROOT_INO || ino > info->si_lasti) {
+               printf("invalid ino=%08lx\n", ino);
                return;
        }
        
@@ -162,13 +171,13 @@ static void bfs_delete_inode(struct inod
                return;
        }
        off = (ino - BFS_ROOT_INO)%BFS_INODES_PER_BLOCK;
-       di = (struct bfs_inode *)bh->b_data + off;
-       if (di->i_ino) {
-               info->si_freeb += BFS_FILEBLOCKS(di);
+       di = (struct bfs_inode *) bh->b_data + off;
+        if (bi->i_dsk_ino) {
+               info->si_freeb += 1 + bi->i_eblock - bi->i_sblock;
                info->si_freei++;
-               clear_bit(di->i_ino, info->si_imap);
+               clear_bit(ino, info->si_imap);
                dump_imap("delete_inode", s);
-       }
+        }
        di->i_ino = 0;
        di->i_sblock = 0;
        mark_buffer_dirty(bh);
@@ -274,14 +283,14 @@ static struct super_operations bfs_sops 
 
 void dump_imap(const char *prefix, struct super_block * s)
 {
-#if 0
+#ifdef DEBUG
        int i;
        char *tmpbuf = (char *)get_zeroed_page(GFP_KERNEL);
 
        if (!tmpbuf)
                return;
        for (i=BFS_SB(s)->si_lasti; i>=0; i--) {
-               if (i>PAGE_SIZE-100) break;
+               if (i > PAGE_SIZE-100) break;
                if (test_bit(i, BFS_SB(s)->si_imap))
                        strcat(tmpbuf, "1");
                else
@@ -297,7 +306,7 @@ static int bfs_fill_super(struct super_b
        struct buffer_head * bh;
        struct bfs_super_block * bfs_sb;
        struct inode * inode;
-       int i, imap_len;
+       unsigned i, imap_len;
        struct bfs_sb_info * info;
 
        info = kmalloc(sizeof(*info), GFP_KERNEL);
@@ -312,19 +321,18 @@ static int bfs_fill_super(struct super_b
        if(!bh)
                goto out;
        bfs_sb = (struct bfs_super_block *)bh->b_data;
-       if (bfs_sb->s_magic != BFS_MAGIC) {
+       if (le32_to_cpu(bfs_sb->s_magic) != BFS_MAGIC) {
                if (!silent)
                        printf("No BFS filesystem on %s (magic=%08x)\n", 
-                               s->s_id, bfs_sb->s_magic);
+                               s->s_id,  le32_to_cpu(bfs_sb->s_magic));
                goto out;
        }
        if (BFS_UNCLEAN(bfs_sb, s) && !silent)
                printf("%s is unclean, continuing\n", s->s_id);
 
        s->s_magic = BFS_MAGIC;
-       info->si_bfs_sb = bfs_sb;
        info->si_sbh = bh;
-       info->si_lasti = (bfs_sb->s_start - BFS_BSIZE)/sizeof(struct bfs_inode) 
+       info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - 
BFS_BSIZE)/sizeof(struct bfs_inode)
                        + BFS_ROOT_INO - 1;
 
        imap_len = info->si_lasti/8 + 1;
@@ -348,8 +356,8 @@ static int bfs_fill_super(struct super_b
                goto out;
        }
 
-       info->si_blocks = (bfs_sb->s_end + 1)>>BFS_BSIZE_BITS; /* for statfs(2) 
*/
-       info->si_freeb = (bfs_sb->s_end + 1 - bfs_sb->s_start)>>BFS_BSIZE_BITS;
+       info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1)>>BFS_BSIZE_BITS; /* 
for statfs(2) */
+       info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1 -  
cpu_to_le32(bfs_sb->s_start))>>BFS_BSIZE_BITS;
        info->si_freei = 0;
        info->si_lf_eblk = 0;
        info->si_lf_sblk = 0;
diff --git a/include/linux/bfs_fs.h b/include/linux/bfs_fs.h
--- a/include/linux/bfs_fs.h
+++ b/include/linux/bfs_fs.h
@@ -14,8 +14,9 @@
 #define BFS_INODES_PER_BLOCK   8
 
 /* SVR4 vnode type values (bfs_inode->i_vtype) */
-#define BFS_VDIR               2
-#define BFS_VREG               1
+#define BFS_VDIR 2L
+#define BFS_VREG 1L
+
 
 /* BFS inode layout on disk */
 struct bfs_inode {
@@ -58,22 +59,22 @@ struct bfs_super_block {
        __u32 s_padding[118];
 };
 
-#define BFS_NZFILESIZE(ip) \
-        (((ip)->i_eoffset + 1) - (ip)->i_sblock * BFS_BSIZE)
-
-#define BFS_FILESIZE(ip) \
-        ((ip)->i_sblock == 0 ? 0 : BFS_NZFILESIZE(ip))
-
-#define BFS_FILEBLOCKS(ip) \
-        ((ip)->i_sblock == 0 ? 0 : ((ip)->i_eblock + 1) - (ip)->i_sblock)
 
 #define BFS_OFF2INO(offset) \
         ((((offset) - BFS_BSIZE) / sizeof(struct bfs_inode)) + BFS_ROOT_INO)
 
 #define BFS_INO2OFF(ino) \
        ((__u32)(((ino) - BFS_ROOT_INO) * sizeof(struct bfs_inode)) + BFS_BSIZE)
+#define BFS_NZFILESIZE(ip) \
+        ((cpu_to_le32((ip)->i_eoffset) + 1) -  cpu_to_le32((ip)->i_sblock) * 
BFS_BSIZE)
+
+#define BFS_FILESIZE(ip) \
+        ((ip)->i_sblock == 0 ? 0 : BFS_NZFILESIZE(ip))
 
+#define BFS_FILEBLOCKS(ip) \
+        ((ip)->i_sblock == 0 ? 0 : (cpu_to_le32((ip)->i_eblock) + 1) -  
cpu_to_le32((ip)->i_sblock))
 #define BFS_UNCLEAN(bfs_sb, sb)        \
-       ((bfs_sb->s_from != -1) && (bfs_sb->s_to != -1) && !(sb->s_flags & 
MS_RDONLY))
+       ((cpu_to_le32(bfs_sb->s_from) != -1) && (cpu_to_le32(bfs_sb->s_to) != 
-1) && !(sb->s_flags & MS_RDONLY))
+
 
 #endif /* _LINUX_BFS_FS_H */
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