Idea is to reduce false cacheline sharing and stuff
Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com>

Replace assert statements with better error handling.
Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com>

This patch fixes up a few problems with jfs's reserved inodes.

1. There is no need for the jfs code setting the I_DIRTY bits in i_state.
   I am ashamed that the code ever did this, and surprised it hasn't been
   noticed until now.

2. Make sure special inodes are on an inode hash list.  If the inodes are
   unhashed, __mark_inode_dirty will fail to put the inode on the
   superblock's dirty list, and the data will not be flushed under memory
   pressure.

3. Force writing journal data to disk when metapage_writepage is unable to
   write a metadata page due to pending journal I/O.
Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com>

The fix in inode.c is a real bug.  It could result in undeleted, yet
unconnected files on big-endian hardware.

The others are trivial.
Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com>

Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com>

I'm finally getting around to cleaning out debug code that I've never used.
There has always been code ifdef'ed out by _JFS_DEBUG_DMAP, _JFS_DEBUG_IMAP,
_JFS_DEBUG_DTREE, and _JFS_DEBUG_XTREE, which I have personally never used,
and I doubt that anyone has since the design stage back in OS/2.  There is
also a function, xtGather, that has never been used, and I don't know why it
was ever there.
Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com>

Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com>

jfs has never worked on architecutures where the page size was not 4K.
Signed-off-by: NDave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!