Re: new version of loop.c patch

[Emil <el@la.mine.nu>]

On 24 September 2001, beldridg@best.com <beldridg@best.com> wrote:
> it looks like the loop.c patch hasn't been integrated into 2.4.10.

You may of course correct this little problem yourself (just remove the
--dry-run option from the patch line and then apply the rejected file
by hand.

For the lazy people here you have the new diff file

-- 
								Regards,
								Emil
--
"Can you imagine the silence if everyone said only what he knows?" - K.Capek
--- loop.c-2.4.original	Mon Sep 24 09:40:19 2001
+++ patched-loop.c	Mon Sep 24 09:43:03 2001
@@ -185,7 +185,7 @@
 	len = bh->b_size;
 	data = bh->b_data;
 	while (len > 0) {
-		int IV = index * (PAGE_CACHE_SIZE/bsize) + offset/bsize;
+		int IV = index * (PAGE_CACHE_SIZE >> 9) + (offset >> 9);
 		size = PAGE_CACHE_SIZE - offset;
 		if (size > len)
 			size = len;
@@ -236,7 +236,7 @@
 	unsigned long count = desc->count;
 	struct lo_read_data *p = (struct lo_read_data*)desc->buf;
 	struct loop_device *lo = p->lo;
-	int IV = page->index * (PAGE_CACHE_SIZE/p->bsize) + offset/p->bsize;
+	int IV = page->index * (PAGE_CACHE_SIZE >> 9) + (offset >> 9);
 
 	if (size > count)
 		size = count;
@@ -494,7 +494,7 @@
 	 * piggy old buffer on original, and submit for I/O
 	 */
 	bh = loop_get_buffer(lo, rbh);
-	IV = loop_get_iv(lo, rbh->b_rsector);
+	IV = bh->b_rsector;
 	if (rw == WRITE) {
 		set_bit(BH_Dirty, &bh->b_state);
 		if (lo_do_transfer(lo, WRITE, bh->b_data, rbh->b_data,
@@ -531,7 +531,7 @@
 		bh->b_end_io(bh, !ret);
 	} else {
 		struct buffer_head *rbh = bh->b_private;
-		unsigned long IV = loop_get_iv(lo, rbh->b_rsector);
+		unsigned int IV = bh->b_rsector;
 
 		ret = lo_do_transfer(lo, READ, bh->b_data, rbh->b_data,
 				     bh->b_size, IV);
@@ -1034,6 +1034,7 @@
 	for (i = 0; i < max_loop; i++)
 		register_disk(NULL, MKDEV(MAJOR_NR, i), 1, &lo_fops, 0);
 
+	{ extern int init_module_aes(void); init_module_aes(); }
 	printk(KERN_INFO "loop: loaded (max %d devices)\n", max_loop);
 	return 0;
 
@@ -1047,6 +1048,7 @@
 
 void loop_exit(void) 
 {
+	{ extern void cleanup_module_aes(void); cleanup_module_aes(); }
 	devfs_unregister(devfs_handle);
 	if (devfs_unregister_blkdev(MAJOR_NR, "loop"))
 		printk(KERN_WARNING "loop: cannot unregister blkdev\n");