[GFS2] Eliminate (almost) duplicate field from gfs2_inode

The blocks counter is almost a duplicate of the i_blocks
field in the VFS inode. The only difference is that i_blocks
can be only 32bits long for 32bit arch without large single file
support. Since GFS2 doesn't handle the non-large single file
case (for 32 bit anyway) this adds a new config dependency on
64BIT || LSF. This has always been the case, however we've never
explicitly said so before.

Even if we do add support for the non-LSF case, we will still
not require this field to be duplicated since we will not be
able to access oversized files anyway.

So the net result of all this is that we shave 8 bytes from a gfs2_inode
and get our config deps correct.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 5 insertions, 6 deletions

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index c3fe8aa03c4e..5f50dd53bf63 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -273,8 +273,7 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
         ip->i_inode.i_nlink = be32_to_cpu(str->di_nlink);
         di->di_size = be64_to_cpu(str->di_size);
         i_size_write(&ip->i_inode, di->di_size);
-        di->di_blocks = be64_to_cpu(str->di_blocks);
-        gfs2_set_inode_blocks(&ip->i_inode);
+        gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks));
         ip->i_inode.i_atime.tv_sec = be64_to_cpu(str->di_atime);
         ip->i_inode.i_atime.tv_nsec = be32_to_cpu(str->di_atime_nsec);
         ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime);
@@ -344,7 +343,7 @@ int gfs2_dinode_dealloc(struct gfs2_inode *ip)
         struct gfs2_rgrpd *rgd;
         int error;
 
-        if (ip->i_di.di_blocks != 1) {
+        if (gfs2_get_inode_blocks(&ip->i_inode) != 1) {
                 if (gfs2_consist_inode(ip))
                         gfs2_dinode_print(ip);
                 return -EIO;
@@ -1398,7 +1397,7 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
         str->di_gid = cpu_to_be32(ip->i_inode.i_gid);
         str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink);
         str->di_size = cpu_to_be64(di->di_size);
-        str->di_blocks = cpu_to_be64(di->di_blocks);
+        str->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode));
         str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec);
         str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec);
         str->di_ctime = cpu_to_be64(ip->i_inode.i_ctime.tv_sec);
@@ -1430,8 +1429,8 @@ void gfs2_dinode_print(const struct gfs2_inode *ip)
         printk(KERN_INFO "  no_addr = %llu\n",
                (unsigned long long)ip->i_no_addr);
         printk(KERN_INFO "  di_size = %llu\n", (unsigned long long)di->di_size);
-        printk(KERN_INFO "  di_blocks = %llu\n",
-               (unsigned long long)di->di_blocks);
+        printk(KERN_INFO "  blocks = %llu\n",
+               (unsigned long long)gfs2_get_inode_blocks(&ip->i_inode));
         printk(KERN_INFO "  i_goal = %llu\n",
                (unsigned long long)ip->i_goal);
         printk(KERN_INFO "  di_flags = 0x%.8X\n", di->di_flags);