[XFS] stop updating inode->i_blocks

The VFS doesn't use i_blocks, it's only used by generic_fillattr and the
generic quota code which XFS doesn't use. In XFS there is one use to check
whether we have an inline or out of line sumlink, but we can replace that
with a check of the XFS_IFINLINE inode flag.

SGI-PV: 971186
SGI-Modid: xfs-linux-melb:xfs-kern:30391a
Signed-off-by: NChristoph Hellwig <hch@infradead.org>
Signed-off-by: NLachlan McIlroy <lachlan@sgi.com>

fs/xfs/linux-2.6/xfs_iops.c

@@ -202,9 +202,6 @@ xfs_validate_fields(
 	loff_t size;
 
 	inode->i_nlink = ip->i_d.di_nlink;
-	inode->i_blocks =
-		XFS_FSB_TO_BB(ip->i_mount, ip->i_d.di_nblocks +
-					   ip->i_delayed_blks);
 	/* we're under i_sem so i_size can't change under us */
 	size = XFS_ISIZE(ip);
 	if (i_size_read(inode) != size)

fs/xfs/linux-2.6/xfs_super.c

@@ -569,7 +569,7 @@ xfs_set_inodeops(
 		break;
 	case S_IFLNK:
 		inode->i_op = &xfs_symlink_inode_operations;
-		if (inode->i_blocks)
+		if (!(XFS_I(inode)->i_df.if_flags & XFS_IFINLINE))
 			inode->i_mapping->a_ops = &xfs_address_space_operations;
 		break;
 	default:
@@ -606,8 +606,6 @@ xfs_revalidate_inode(
 
 	inode->i_generation = ip->i_d.di_gen;
 	i_size_write(inode, ip->i_d.di_size);
-	inode->i_blocks =
-		XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
 	inode->i_atime.tv_sec	= ip->i_d.di_atime.t_sec;
 	inode->i_atime.tv_nsec	= ip->i_d.di_atime.t_nsec;
 	inode->i_mtime.tv_sec	= ip->i_d.di_mtime.t_sec;

fs/xfs/linux-2.6/xfs_vnode.c

@@ -106,8 +106,6 @@ vn_revalidate(
 	inode->i_nlink	    = ip->i_d.di_nlink;
 	inode->i_uid	    = ip->i_d.di_uid;
 	inode->i_gid	    = ip->i_d.di_gid;
-	inode->i_blocks	    =
-		XFS_FSB_TO_BB(mp, ip->i_d.di_nblocks + ip->i_delayed_blks);
 	inode->i_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
 	inode->i_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
 	inode->i_ctime.tv_sec = ip->i_d.di_ctime.t_sec;

fs/xfs/xfs_vnodeops.c

@@ -1536,9 +1536,6 @@ xfs_release(
 			error = xfs_free_eofblocks(mp, ip, XFS_FREE_EOF_LOCK);
 			if (error)
 				return error;
-			/* Update linux inode block count after free above */
-			vn_to_inode(vp)->i_blocks = XFS_FSB_TO_BB(mp,
-				ip->i_d.di_nblocks + ip->i_delayed_blks);
 		}
 	}
 
@@ -1612,9 +1609,6 @@ xfs_inactive(
 			error = xfs_free_eofblocks(mp, ip, XFS_FREE_EOF_LOCK);
 			if (error)
 				return VN_INACTIVE_CACHE;
-			/* Update linux inode block count after free above */
-			vn_to_inode(vp)->i_blocks = XFS_FSB_TO_BB(mp,
-				ip->i_d.di_nblocks + ip->i_delayed_blks);
 		}
 		goto out;
 	}