linux24/fs/jfs

Update of /usr/cvs/jfs/linux24/fs/jfs
In directory swg3ws025:/tmp/cvs-serv8892/fs/jfs

Modified Files:
	jfs_dmap.c jfs_dtree.c jfs_extent.c jfs_filsys.h jfs_imap.c 
	jfs_metapage.c jfs_superblock.h jfs_txnmgr.c jfs_xtree.c 
	namei.c resize.c super.c xattr.c 
Log Message:
mproved error handing

This patch replaces many assert statements, which caused a BUG(), with
improved code to mark the superblock dirty and then proceed as specified by
the errors= mount flag (as ext2 and ext3 do).  JFS's default for the errors
option is "remount-ro" in order to prevent addition data corruption when a
problem is found.

These asserts are usually triggered by on-disk data corruption.  By marking
the superblock dirty, fsck will perform a complete check on the file system
and correct the problems, rather than simply replaying the journal, inviting
later trouble.

Submitted by Karl Rister & Dave Kleikamp