into samba.org:/scratch/anton/linux-2.5_ppc64_new

into samba.org:/scratch/anton/linux-2.5_ppc64_new

into samba.org:/scratch/anton/linux-2.5_ppc64_new

into samba.org:/scratch/anton/linux-2.5_ppc64

into samba.org:/scratch/anton/linux-2.5_ppc64_new

into samba.org:/scratch/anton/linux-2.5_ppc64_new

into samba.org:/scratch/anton/linux-2.5_ppc64_Makefilecleanup

into samba.org:/scratch/anton/linux-2.5_ppc64_new

into samba.org:/scratch/anton/linux-2.5_ppc64_new

into samba.org:/scratch/anton/linux-2.5_ppc64_Makefilecleanup

it has just one function nowdays, and that one would be much better
static in scsi.c

update DAC960 and umem to new bio_endio() completions

Make BIO_UPTODATE a sticky good flag, only clearing it on error.

I pondered leaving the BIO_UPTODATE clearing up to the bi_end_io()
functions, but decided against that and left it in bio_endio() as
before.

I also added a bit of debug in bio_endio() to detect callers specifying
more than bi_size i/o complete.  And to top it all of, bio_endio()
documentation.  This is mainly to clear my back when people bitch about
using bio_endio(), I can say RTFM without worry :-)

This renames the svc_getlong and svc_putlong macros as svc_getu32 and
svc_putu32.  this is simple clean up and is obviously correct.  it was
part of the patch that implements stricter type checking for rpc auth
flavors.

This implements stricter type checking for rpc auth flavors.  it is a
prerequisite for RPC GSSAPI and its authentication pseudoflavors.
please apply it.

This renames *reconn* to *conn* since the same code now handles both
initial TCP connect, and TCP reconnection, and corrects some comments.
against 2.5.36, requires earlier patch (1/1).

This provides clean up and bug fixes for the RPC layer's TCP socket
connection management logic.  Trond, Alexey, and DaveM have seen this
patch.  i've been running it for several weeks here and feel it is ready
for wider testing.  these two patches are prerequisites for further
clean-ups and fixes for RPC over TCP.

bugs fixed:
+  TCP connection establishment now times out after 60 seconds instead of
   hanging for ten minutes.  60 seconds is more in line with how long a
   server takes to reboot.
+  on a soft-mounted file system, TCP reconnections now time out and fail
   the RPC request, like most other NFS clients, instead of hanging the
   NFS client until the server comes back.
+  on hard-mounted file systems, the RPC layer now delays 15 seconds
   before retrying after a failed connection attempt instead of retrying
   as soon as it can.
+  TCP connection error recovery is now more verbose so users can see why
   their NFS sessions are hung.  this can be tuned with future patches if
   it is unreasonably noisy.
+  the TCP connect logic is cleaned up so adding checks for new errnos
   is easier.
+  the same code now handles both initial connection and reconnection.
   the original initial connection code did not have comprehensive error
   handling.
+  some obscure design elements are now documented in comments.
+  kfree was used by mistake in xprt_destroy.

This patch consolidates zap_thread into reparent_thread, and fixes
__will_become_orphaned_pgrp to check p->real_parent instead of
p->parent.

XFS now needs to use bio_add_page() as not to build bio's of the wrong
size. Also makes the bio build nicer.

Seems James introduced this one, it's not needed though. Will take a
look at eh thread now...

missed updating xfs and jfs to new bi_end_io handling

Make bio->bi_end_io() take bytes_done and actual error as argument. This
enables partial completion of bio's, which is important for latency
reasons (bio can be huge, for slow media we want page-by-page
completions).

I think I got most of the bi_end_io() functions out there, but I might
have missed a few. For the record, if you don't care about partial
completions and just want to be notified when the entire bio completes,
add a

	if (bio->bi_size)
		return 1;

to the top of your bi_end_io(). It should return 0 on completion.
bio_endio() will decrement bio->bi_size appropriately, it's recommended
for people to go through that. Otherwise they will have to control
BIO_UPTODATE and bi_size decrement themselves, there's really no reason
to do that. I've deliberately avoided doing any functional changes to
any of the end_io functions, as I think that would only make the patch
more complex. It's simple right now, but this being i/o paths I prefer
(as usual) to be careful and take small steps. The mpage_end_io_read()
do-vecs-at-the-time change can come right after this, for instance.

This makes mpage use bio_add_page().  It has the added advantage that
users don't need to have deep knowledge about what the different bio
fields mean, nor does it have to abuse some of them while building the
bio.

This is bio_add_page(), 100% identical to the version I sent out for
comments earlier this week.  With the previous queue restriction patch,
this guarentees that we can always add a page worth of data to the bio.
bio_add_page() returns 0 on success, and 1 on failure.  Either the page
is added completely, or the attempt is aborted.

bio_add_page() uses the normal queue restrictions to determine whether
we an add the page or not. if a queue has further restrictions, it can
define a q->merge_bvec_fn() to further impose limits.

Patch also includes changes to ll_rw_kio(), if for nothing else to
demonstrate how to use this piece of instrastructure.

Impose sane limits on queue restrictions. that means:

 - q->max_sectors must be able to at least span a page
 - q->max_phys_segments and q->max_hw_segments must be at least 1
 - q->max_segment_size must be at least page sized
 - q->seg_boundary_mask must be at least PAGE_CACHE_SIZE-1

into samba.org:/scratch/anton/linux-2.5_ppc64_new

Art Haas did these.