[PATCH] Fix fs/fat/inode.c when compiled with gcc-3.0.x

[Tom Rini]

Hello.  Currently when fs/fat/inode.c is compiled with gcc-3.0.x, there
are to lines which will cause a __divdi3 call to be used.  But on most
archs, there isn't currently a __divdi3 implementation in the kernel, so
FAT will no longer link (or load as a module).  The easy fix (pointed
out by Andrew Morton) is to replace the divide by 512 with a shift right
by 9, which has the same effect but doesn't use a divide.

This is vs 2.4.18-pre3, but applies to 2.5.2-pre9 as well (and probably
pre10 too..)

-- 
Tom Rini (TR1265)
http://gate.crashing.org/~trini/

===== fs/fat/inode.c 1.10 vs edited =====
--- 1.10/fs/fat/inode.c	Wed Nov 21 15:12:16 2001
+++ edited/fs/fat/inode.c	Thu Jan 10 15:40:11 2002
@@ -406,7 +406,7 @@
 	}
 	inode->i_blksize = 1 << sbi->cluster_bits;
 	inode->i_blocks = ((inode->i_size + inode->i_blksize - 1)
-			   & ~(inode->i_blksize - 1)) / 512;
+			   & ~(inode->i_blksize - 1)) >> 9;
 	MSDOS_I(inode)->i_logstart = 0;
 	MSDOS_I(inode)->mmu_private = inode->i_size;
 
@@ -952,7 +952,7 @@
 	/* this is as close to the truth as we can get ... */
 	inode->i_blksize = 1 << sbi->cluster_bits;
 	inode->i_blocks = ((inode->i_size + inode->i_blksize - 1)
-			   & ~(inode->i_blksize - 1)) / 512;
+			   & ~(inode->i_blksize - 1)) >> 9;
 	inode->i_mtime = inode->i_atime =
 		date_dos2unix(CF_LE_W(de->time),CF_LE_W(de->date));
 	inode->i_ctime =