[PATCH] loop: fixing cryptoloop troubles.

[Fruhwirth Clemens]

In loop_transfer_bio the initial vector has been computed only once. For any
situation where more than one bio_vec is present the initial vector will be
wrong. Here is the trivial but important fix. 

This will fix the disk corruption problems of cryptoloop for block-backed
loop devices mentioned earlier this month on this list. 

This should close http://bugme.osdl.org/show_bug.cgi?id=1000 

Please confirm.

Regards, Clemens
--- linux-2.6.0-test2/drivers/block/loop.c~	Sun Jul 27 19:03:16 2003
+++ linux-2.6.0-test2/drivers/block/loop.c	Sun Aug 10 04:22:44 2003
@@ -513,6 +513,7 @@
 					from_bvec->bv_len, IV);
 		kunmap(from_bvec->bv_page);
 		kunmap(to_bvec->bv_page);
+		IV += from_bvec->bv_len >> 9;
 	}
 
 	return ret;

Attachment: pgp00003.pgp
Description: PGP signature