Recently a patch set was accepted to allow the Linux NFS client to handle
 short writes by retrying the unwritten portion of the request.  The only
 case that now results in an error is when the server makes no progress;
 that is, writes zero bytes.

 This patch changes the kernel log warning that is generated in that case
 to reflect the error condition more accurately.
Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

 sillyrenames when renaming to an existing file.
Signed-off-by: Greg Banks <gnb@melbourne.sgi.com>
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

      know there are no pending timers.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

      inodes may be marked as stale in one instance (causing the dentry
      to be dropped) then re-enabled in the next instance.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

Although it usually means that someone has deleted a file on the server,
the ESTALE error may also indicate that the sysadmin has used exportfs to
deny our client access to the server. Most NFS implementations therefore
consider it a non-permanent condition, and allow inodes to "recover" when
the sysadmin re-enables access.
If, however, you want to work with broken servers, like unfsd, that reuse
filehandles for new files after the original file gets deleted, then
"recovery" is impossible, since it may be that the filehandle now points
to a different file. Note that this is broken server behaviour that may
happen even without us ever seeing the ESTALE error.
In order to minimize (but we can never eliminate entirely) this race
condition on unfsd servers, Linux has traditionally made ESTALE a
permanent condition on all filehandles except the root filehandle.

The problem is that if we apply this strict staleness criterion to
directories (particularly so for he current directory), then all
processes will need to re-walk the path starting from the mount point,
in order to recover from the sysadmin intervention case. As this is not
usual on other *NIX implementations, and may in any case be undermined by
caching rules etc, this is being seen as a usability problem.

This patch makes ESTALE a non-permanent condition on directories, but
preserves the current behaviour for non-directories.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

 Replace the kmalloc() and kfree() calls in this path with appropriate
 invocations of nfs_writedata_alloc() and nfs_writedata_free().  This
 makes nfs_writepage_sync match all the other write paths in fs/nfs/write.c.

 Category: Maintainability, performance
Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

as a void * when we know perfectly well what it is.  And we're passing
some arguments that we don't actually use.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

unwisely revived it for use with the gss code.  Having removed that use
from the gss code, it's time to remove all references to it.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

indicate failure of an upcall to get a gss context for that cred,
set the status of waiting tasks to indicate failure.

This solves problems e.g. with creds with the CRED_DEAD flag set
never being refreshed, which caused krb5 mounts to fail after the
context used to do RENEWS expired.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

the cred containing the context non-uptodate, triggering creation of
a new context.

Note that on the send-side operations (get_mic, wrap), we mark the
cred as not uptodate, but continue trying to use it; the server can
complain if it wants to, and the next time through we'll refresh it.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

       asynchronous RPC calls.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

       credentials when they are available.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

     qstr.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

     calls renders nfs_cached_lookup() obsolete.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

     through the directory.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

  People are worrying about spinlock deadlocks in the debugging code, without
  actually worrying about the bugs that triggered the debugging code in the
  first place.
  Convert to BUG_ON() in order to ensure that bugs are reported.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

  Shirly Ma reported seeing problems with rpc_killall_tasks() causing
  the task->tk_magic debugging test to trigger. It turns out we may be
  killing tasks that are not yet running or even initialized.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

     spinlocks.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

reason the user migth want to see it.

Under any normal use it gets auto-selected by PS/2 mouse or ATKBD
support anyway, and if those aren't selected there's no reason to
select this one either unless you have some very special uses.

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

arch/x86_64/mm/init.c: In function `in_gate_area_no_task':
arch/x86_64/mm/init.c:656: warning: suggest parentheses around && within ||
In file included from include/asm/numa.h:5,
                 from arch/x86_64/kernel/setup.c:60:
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Signed-off-by: Russell King <rmk@arm.linux.org.uk>

Signed-off-by: Russell King <rmk@arm.linux.org.uk>

Patch from Liam Girdwood

This patch allows the PXA SSP port configuration to be changed without
the need to close the port.

Signed-off-by: Liam Girdwood
Signed-off-by: Russell King

This changes kernel domains to use domain 0 rather than domain 1,
in preparation to supporting supersection mappings.
Signed-off-by: Russell King <rmk@arm.linux.org.uk>

Patch from Liam Girdwood

This patch adds the PXA27x SSP port 3 configuration register space (Phys
0x41900000) to the kernel memory table.

Signed-off-by: Liam Girdwood
Signed-off-by: Russell King

into ppc970.osdl.org:/home/torvalds/v2.6/linux

From: Lennart Poettering

Trivial patch against Linux 2.6.10 which adds PNP support for a
certain kind of Rockwell 28.8/ISA modems.

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Since all users of this have now been eliminated, we can eliminate
the element itself.  MMC host drivers now operate only on the
scatter lists passed to them, rather than needing knowledge of
block devices.
Signed-off-by: Russell King <rmk@arm.linux.org.uk>