Ubuntu has enabled -fstack-protector per default in gcc
breaking kernel build. Explicit turn it off for now.
Later we may decide to make it configurable if the
kernel starts to support it.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>

Minor documentation change on allowing checkers besides sparse

This patch cleans up a couple of mentions of sparse in the inline
toplevel Makefile documentation such that it's clear that other checkers
besides sparse can override CHECK and CHECKFLAGS.
Signed-off-by: NDustin Kirkland <dustin.kirkland@us.ibm.com>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>

We now have infrastructure in place to mark an EXPORTed symbol
as unused. So the natural next step is to warn during buildtime when
a module uses a symbol marked UNUSED.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>

Parsing an old Modules.symvers file casued modpost to SEGV.
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>

Some fix that I forgot for good accessibility of lxdialog (the cursor
should always be left at the focus location):

Have the checklist display the currently highlighted entry last, for having
the cursor left on it (rather than on the last line of the list).
Signed-off-by: NSamuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>

kbuild used $¤(*F to get filename of target without extension.
This was used in several places all over kbuild, but introducing
make -rR broke his for all cases where we specified full path to
target/prerequsite. It is assumed that make -rR disables old style
suffix-rules which is why is suddenly failed.

ia64 was impacted by this change because several div* routines in
arch/ia64/lib are build using explicit paths and then kbuild failed.

Thanks to David Mosberger-Tang <David.Mosberger@acm.org> for an explanation
what was the root-cause and for testing on ia64.

This patch also fixes two uses of $(*F) in arch/um
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>

drivers/i2c/busses/i2c-i801.c: In function 'i801_probe':
drivers/i2c/busses/i2c-i801.c:496: warning: format '%lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t'

Cc: Greg KH <greg@kroah.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Remove devfs leftovers.

Cc: Greg KH <greg@kroah.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Server-side implementation of rpcsec_gss privacy, which enables encryption of
the payload of every rpc request and response.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Add a rq_sendfile_ok flag to svc_rqst which will be cleared in the privacy
case so that the wrapping code will get copies of the read data instead of
real page cache pages.  This makes life simpler when we encrypt the response.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Pull out some of the integrity code into its own function, otherwise
svcauth_gss_release() is going to become very ungainly after the addition of
privacy code.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Since nfsv4 actually keeps around the file descriptors it gets from open
(instead of just using them for a single read or write operation), we need to
make sure that we can do RDWR opens and not just RDONLY/WRONLY.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

These tests always returned true; clearly that wasn't what was intended.

In keeping with kernel style, make them functions instead of macros while
we're at it.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Adopt a simpler convention for gss_mech_put(), to simplify rsc_parse().
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

In the event that lookup_one_len() fails in nfsd_link(), fh_unlock() is
skipped and locks are held overlong.

Patch was tested on 2.6.17-rc2 by causing lookup_one_len() to fail and
verifying that fh_unlock() gets called appropriately.
Signed-off-by: NDavid M. Richter <richterd@citi.umich.edu>
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

We're checking nfs_in_grace here a few times when there isn't really any
reason to--bad_stateid is probably the more sensible return value anyway.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

In the typical v2/v3 case the only new filehandles used as arguments to
operations are filehandles taken directly off the wire, which don't get
dentries until fh_verify() is called.

But in v4 the filehandles that are arguments to operations were often created
by previous operations (putrootfh, lookup, etc.) using fh_compose, which sets
the dentry in the filehandle without calling nfsd_setuser().

This also means that, for example, if filesystem B is mounted on filesystem A,
and filesystem A is exported without root-squashing, then a client can bypass
the rootsquashing on B using a compound that starts at a filehandle in A,
crosses into B using lookups, and then does stuff in B.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix an improper unlock in an error path.
Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

nfsd tries to return to a client the same sort of filehandle as was used by
the client.  This removes some filehandle aliasing issues and means that a
server upgrade followed by a downgrade will not confused clients not restarted
during that time.

However when crossing a mountpoint, the filehandle used for one filesystem
doesn't provide any useful information on what sort of filehandle should be
used on the other, and can provide misleading information.  So if the
reference filehandle is on a different filesystem to the one being generated,
ignore it.
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

There is a perfectly valid situation where fh_update gets called on an already
uptodate filehandle - in nfsd_create_v3 where a CREATE_UNCHECKED finds an
existing file and wants to just set the size.

We could possible optimise out the call in that case, but the only harm
involved is that fh_update prints a warning, so it is easier to remove the
warning.
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Type '3' is used for the fsid in filehandles when the device number of the
device holding the filesystem has more than 8 bits in either major or minor.
Unfortunately expkey_parse doesn't recognise type 3.  Fix this.

(Slighty modified from Frank's original)
Signed-off-by: NFrank Filz <ffilzlnx@us.ibm.com>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Just testing the i_sb isn't really enough, at least the vfsmnt must be the
same.  Thanks Al.

Cc: Al Viro <viro@ftp.linux.org.uk>
Signed-off-by: NNeil Brown <neilb@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Removed Dave Peterson as per his request as co-maintainer of EDAC Thanks Dave.

Added Mark Gross as maintainer of edac-e752x driver Thanks Mark
Signed-off-by: NDoug Thompson <norsk5@xmission.com>
Signed-off-by: NDave Peterson <dsp@llnl.gov>
Signed-off-by: NMark Gross <mark.gross@intel.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

- Add lower-level functions that handle various parts of the initialization
  done by the xxx_probe1() functions.  Some of the xxx_probe1() functions are
  much too long and complicated (see "Chapter 5: Functions" in
  Documentation/CodingStyle).

- Cleanup of probe1() functions in EDAC
Signed-off-by: NDoug Thompson <norsk5@xmission.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Remove add_mc_to_global_list().  In next patch, this function will be
reimplemented with different semantics.

1 Reimplement add_mc_to_global_list() with semantics that allow the caller to
  determine the ID number for a mem_ctl_info structure.  Then modify
  edac_mc_add_mc() so that the caller specifies the ID number for the new
  mem_ctl_info structure.  Platform-specific code should be able to assign the
  ID numbers in a platform-specific manner.  For instance, on Opteron it makes
  sense to have the ID of the mem_ctl_info structure match the ID of the node
  that the memory controller belongs to.

2 Modify callers of edac_mc_add_mc() so they use the new semantics.
Signed-off-by: NDoug Thompson <norsk5@xmission.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Change MC drivers from using CVS revision strings for their version number,
Now each driver has its own local string.

Remove some PCI dependencies from the core EDAC module.  Made the code 'struct
device' centric instead of 'struct pci_dev' Most of the code changes here are
from a patch by Dave Jiang.  It may be best to eventually move the
PCI-specific code into a separate source file.
Signed-off-by: NDoug Thompson <norsk5@xmission.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Two typos in Documentation/IPMI.
Acked-by: NAlan Cox <alan@redhat.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Add __acquire annotations to rcu_read_lock and rcu_read_lock_bh, and add
__release annotations to rcu_read_unlock and rcu_read_unlock_bh.  This
allows sparse to detect improperly paired calls to these functions.
Signed-off-by: NJosh Triplett <josh@freedesktop.org>
Acked-by: NPaul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

- make __cm206_init() __init (required since it calls
  the __init cm206_init())
- make the needlessly global bcdbin() static
- remove a comment with an obsolete compile command
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Don't show a menu that can't be entered due to lack of contents on arm (the
options are only available on arm26).
Signed-off-by: NAdrian Bunk <bunk@stusta.de>
Acked-by: NIan Molton <spyro@f2s.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This corrects the comments describing the 'enabled' and 'pending' flags in
struct rtc_wkalrm of include/linux/rtc.h.
Signed-off-by: NAndrew Victor <andrew@sanpeople.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix a bug identified by Zou Nan hai <nanhai.zou@intel.com>:

If the system is in state SYSTEM_BOOTING, and need_resched() is true,
cond_resched() returns true even though it didn't reschedule.  Consequently
need_resched() remains true and JBD locks up.

Fix that by teaching cond_resched() to only return true if it really did call
schedule().

cond_resched_lock() and cond_resched_softirq() have a problem too.  If we're
in SYSTEM_BOOTING state and need_resched() is true, these functions will drop
the lock and will then try to call schedule(), but the SYSTEM_BOOTING state
will prevent schedule() from being called.  So on return, need_resched() will
still be true, but cond_resched_lock() has to return 1 to tell the caller that
the lock was dropped.  The caller will probably lock up.

Bottom line: if these functions dropped the lock, they _must_ call schedule()
to clear need_resched().   Make it so.

Also, uninline __cond_resched().  It's largeish, and slowpath.
Acked-by: NIngo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The x86_64 build requires a definition for __raw_writeq.
Signed-off-by: NJeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

I run an x86_64 kernel with i386 userspace (Ubuntu Dapper) and decided to try
out UML today.  I found that UML wasn't quite aware of biarch compilers (which
Ubuntu i386 ships).  A fix similar to what was done for x86_64 should probably
be committed (see
http://marc.theaimsgroup.com/?l=linux-kernel&m=113425940204010&w=2).  Without
the FLAGS changes, the build will fail at a number of places and without the
LINK change, the final link will fail.
Signed-off-by: NNishanth Aravamudan <nacc@us.ibm.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Forgot to remove arch/um/kernel/time.c when it was mostly moved to
arch/um/os-Linux.
Signed-off-by: NJeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Remove um_time() and um_stime() syscalls since they are identical to
system-wide ones.
Signed-off-by: NPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

do_timer must be called with xtime_lock held.  I'm not sure boot_timer_handler
needs this, however I don't think it hurts: it simply disables irq and takes a
spinlock.
Signed-off-by: NPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

-mm in combination with an FC5 init started dying with 'stderr=1' because init
didn't like the lack of /dev/console and exited.  The problem was that the
stderr console, which is intended to dump printk output to the terminal before
the regular console is initialized, isn't a tty, and so can't make
/dev/console operational.

However, since it is registered first, the normal console, when it is
registered, doesn't become the preferred console, and isn't attached to
/dev/console.  Thus, /dev/console is never operational.

This patch makes the stderr console unregister itself in an initcall, which is
late enough that the normal console is registered.  When that happens, the
normal console will become the preferred console and will be able to run
/dev/console.
Signed-off-by: NJeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix an off-by-one bug in temp file creation.  Seeking to the desired length
and writing a byte resulted in the file being one byte longer than expected.
Signed-off-by: NJeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

When parsing /proc/mounts looking for a tmpfs mount on /dev/shm, if a string
that we are looking for if split across reads, then it won't be recognized.

Fix this by refilling the buffer whenever we advance the cursor.
Signed-off-by: NJeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>