On request from Al Viro make modpost processing configurable.

KBUILD_MODPOST_WARN can be set to make modpost warn instead of
error out in case on unresolved symbols in final module link.

KBUILD_MODPOST_NOFINAL can be set to avoid the final and timeconsuming
.c file generation and link of .ko files. This is solely useful for
speeding up when doing compile checks with for example allmodconfig
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Do not initialize ncurses twice - it causes unpredicable
results. My display was sometimes weird after running
make menuconfig and I had to execute 'reset' to properly
restore my display.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Menulines that were wider than the available
line width is now properly null terminated.

While at it renamed the variable choice => line_y
so it better reflect the usage in do_print_item().
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Due to a limitation in kbuild all objects referred
by xxx-y or xxx-objs will be build when one of
the targets needs to e build.

This caused lxdialog to be build pulling in ncurses
that is not always available.
So avoid building mconf & lxdialog unless really needed.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

No Makefile in scripts/kconfig/lxdialog anymore, so do not
go there during make mrproper.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

In all dialogs now properly catch KEY_RESIZE and take proper action.
In mconf try to behave sensibly when a dialog routine returns
-ERRDISPLAYTOOSMALL.

The original check for a screnn size of 80x19 is kept for now.
It may make sense to remove it later, but thats anyway what
much text is adjusted for.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

<ESC><ESC> is used to step one back in the dialogs.
When lxdialog became built-in pressing <ESC> once would cause one step back
and pressing <ESC><ESC> would cause two steps back.
This patch - based on concept from Roman Zippel <zippel@linux-m68k.org> -
makes one <ESC> a noop and pressing <ESC><ESC> will cause one step backward.

In addition the final yes/no dialog now has the option to go back to the
the kernel configuration. So if you get too far out you can now go back
to configuring the kernel without saving and starting all over again.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

lxdialog was previously called as an external program causing screen
to flicker when used. With this patch lxdialog is now built-in.
It is loosly based om previous work by:  Petr Baudis <pasky@ucw.cz>

Following is a list of changes:
o Moved build of dialog routings to kconfig Makefile
o menubox + checklist uses a new item list to hold all menu items
o in util.c implmented helper function to deal with item list
o menubox now uses parameters to save scroll state (avoids temp file)
o textbox now get text to be displayed as parameter and not a file
o make sure to properly delete subwin's before main windows
o killed unused files: lxdialog.c msgbox.c
o modified return value for ESC to match direct calling
o in a few places the code has been adjusted to 80 char wide
o in textbox a small refactoring was made to make code remotely readable
o in mconf removed all unused stuff (functions/variables)

Following is a list of know short comings:
a) pressing ESC twice will be interpreted as two ESC presses
b) resize does not work. menuconfig needs to be restarted to be adjusted
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

The bluetitle theme is a slightly modified version of the colorscheme
that -mm users has been used to. The bluetitle is more readable especially
on some LCD screens so it is now default.
Anyone that really wants the old color selection can get it by selecting
the classic color theme:
make MENUCONFIG_COLOR=classic menuconfig

The bluetitle theme was modified by Roman Zippel <zippel@linux-m68k.org>
to further improve readability on LCD screens.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

The blackbg theme was originally made by: Han Boetes
It was copied from a patch by "Randy.Dunlap" <rdunlap@xenotime.net>
which was also the inspiration source for the color theme support.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Clean up and refactor color support. All color support are now
in util.c including color definitions.
In the process introduced a global variable named 'dlg' which is
used all over to set color - thats the reason why all files are changed.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [ATM]: [lec] use refcnt to protect lec_arp_entries outside lock
  [ATM]: [lec] add reference counting to lec_arp entries
  [ATM]: [lec] use work queue instead of timer for lec arp expiry
  [ATM]: [lec] old_close is no longer used
  [ATM]: [lec] convert lec_arp_table to hlist
  [ATM]: [lec] header indent, comment and whitespace cleanup
  [ATM]: [lec] indent, comment and whitespace cleanup [continued]
  [ATM]: [lec] indent, comment and whitespace cleanup
  [SCTP]: Do not timestamp every SCTP packet.
  [SCTP]: Use correct mask when disabling PMTUD.
  [SCTP]: Include sk_buff overhead while updating the peer's receive window.
  [SCTP]: Enable Nagle algorithm by default.
  [BNX2]: Disable MSI on 5706 if AMD 8132 bridge is present.
  [NetLabel]: audit fixups due to delayed feedback

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

We only need the timestamp on COOKIE-ECHO chunks, so instead of always
timestamping every SCTP packet, let common code timestamp if the socket
option is set.  For COOKIE-ECHO, simply get the time of day if we don't
have a timestamp.  This introduces a small possibility that the cookie
may be considered expired, but it will be renegotiated.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Currently if the sender is sending small messages, it can cause a receiver
to run out of receive buffer space even when the advertised receive window
is still open and results in packet drops and retransmissions. Including
a overhead while updating the sender's view of peer receive window will
reduce the chances of receive buffer space overshooting the receive window.
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

This allows more aggressive bundling of chunks when sending small
messages.
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MSI is defined to be 32-bit write.  The 5706 does 64-bit MSI writes
with byte enables disabled on the unused 32-bit word.  This is legal
but causes problems on the AMD 8132 which will eventually stop
responding after a while.

Without this patch, the MSI test done by the driver during open will
pass, but MSI will eventually stop working after a few MSIs are
written by the device.

AMD believes this incompatibility is unique to the 5706, and
prefers to locally disable MSI rather than globally disabling it
using pci_msi_quirk.

Update version to 1.4.45.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Fix some issues Steve Grubb had with the way NetLabel was using the audit
subsystem.  This should make NetLabel more consistent with other kernel
generated audit messages specifying configuration changes.
Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Steve Grubb <sgrubb@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

Actually, since we use the same code for all the copying
types in and out of userspace, we check at runtime whether
preemption is disabled.
Signed-off-by: David S. Miller <davem@davemloft.net>

Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Accepted connections of types other than AF_INET, AF_INET6, AF_UNIX won't
have an appropriate label derived from the peer, so don't use it.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Paul Moore <paul.moore@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: (33 commits)
  IB/ipath: Fix lockdep error upon "ifconfig ibN down"
  IB/ipath: Fix races with ib_resize_cq()
  IB/ipath: Support new PCIE device, QLE7142
  IB/ipath: Set CPU affinity early
  IB/ipath: Fix EEPROM read when driver is compiled with -Os
  IB/ipath: Fix and recover TXE piobuf and PBC parity errors
  IB/ipath: Change HT CRC message to indicate how to resolve problem
  IB/ipath: Clean up module exit code
  IB/ipath: Call mtrr_del with correct arguments
  IB/ipath: Flush RWQEs if access error or invalid error seen
  IB/ipath: Improved support for PowerPC
  IB/ipath: Drop unnecessary "(void *)" casts
  IB/ipath: Support multiple simultaneous devices of different types
  IB/ipath: Fix mismatch in shifts and masks for printing debug info
  IB/ipath: Fix compiler warnings and errors on non-x86_64 systems
  IB/ipath: Print more informative parity error messages
  IB/ipath: Ensure that PD of MR matches PD of QP checking the Rkey
  IB/ipath: RC and UC should validate SLID and DLID
  IB/ipath: Only allow complete writes to flash
  IB/ipath: Count SRQs properly
  ...

* git://oss.sgi.com:8090/xfs/xfs-2.6: (49 commits)
  [XFS] Remove v1 dir trace macro - missed in a past commit.
  [XFS] 955947: Infinite loop in xfs_bulkstat() on formatter() error
  [XFS] pv 956241, author: nathans, rv: vapo - make ino validation checks
  [XFS] pv 956240, author: nathans, rv: vapo - Minor fixes in
  [XFS] Really fix use after free in xfs_iunpin.
  [XFS] Collapse sv_init and init_sv into just the one interface.
  [XFS] standardize on one sema init macro
  [XFS] Reduce endian flipping in alloc_btree, same as was done for
  [XFS] Minor cleanup from dio locking fix, remove an extra conditional.
  [XFS] Fix kmem_zalloc_greedy warnings on 64 bit platforms.
  [XFS] pv 955157, rv bnaujok - break the loop on EFAULT formatter() error
  [XFS] pv 955157, rv bnaujok - break the loop on formatter() error
  [XFS] Fixes the leak in reservation space because we weren't ungranting
  [XFS] Add lock annotations to xfs_trans_update_ail and
  [XFS] Fix a porting botch on the realtime subvol growfs code path.
  [XFS] Minor code rearranging and cleanup to prevent some coverity false
  [XFS] Remove a no-longer-correct debug assert from dio completion
  [XFS] Add a greedy allocation interface, allocating within a min/max size
  [XFS] Improve error handling for the zero-fsblock extent detection code.
  [XFS] Be more defensive with page flags (error/private) for metadata
  ...

Fix undefined reference in i2c_sibyte_exit().

   drivers/built-in.o: In function `i2c_sibyte_exit':
   i2c-sibyte.c:(.exit.text+0x368): undefined reference to `i2c_del_bus'
   i2c-sibyte.c:(.exit.text+0x368): relocation truncated to fit: R_MIPS_26 against `i2c_del_bus'
   i2c-sibyte.c:(.exit.text+0x38c): undefined reference to `i2c_del_bus'
   i2c-sibyte.c:(.exit.text+0x38c): relocation truncated to fit: R_MIPS_26 against `i2c_del_bus'
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Fix obscure race condition in kernel/cpuset.c attach_task() code.

There is basically zero chance of anyone accidentally being harmed by this
race.

It requires a special 'micro-stress' load and a special timing loop hacks
in the kernel to hit in less than an hour, and even then you'd have to hit
it hundreds or thousands of times, followed by some unusual and senseless
cpuset configuration requests, including removing the top cpuset, to cause
any visibly harm affects.

One could, with perhaps a few days or weeks of such effort, get the
reference count on the top cpuset below zero, and manage to crash the
kernel by asking to remove the top cpuset.

I found it by code inspection.

The race was introduced when 'the_top_cpuset_hack' was introduced, and one
piece of code was not updated.  An old check for a possibly null task
cpuset pointer needed to be changed to a check for a task marked
PF_EXITING.  The pointer can't be null anymore, thanks to
the_top_cpuset_hack (documented in kernel/cpuset.c).  But the task could
have gone into PF_EXITING state after it was found in the task_list scan.

If a task is PF_EXITING in this code, it is possible that its task->cpuset
pointer is pointing to the top cpuset due to the_top_cpuset_hack, rather
than because the top_cpuset was that tasks last valid cpuset.  In that
case, the wrong cpuset reference counter would be decremented.

The fix is trivial.  Instead of failing the system call if the tasks cpuset
pointer is null here, fail it if the task is in PF_EXITING state.

The code for 'the_top_cpuset_hack' that changes an exiting tasks cpuset to
the top_cpuset is done without locking, so could happen at anytime.  But it
is done during the exit handling, after the PF_EXITING flag is set.  So if
we verify that a task is still not PF_EXITING after we copy out its cpuset
pointer (into 'oldcs', below), we know that 'oldcs' is not one of these
hack references to the top_cpuset.
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add a note about "format=flowed" when sending patches and explain how to
fix mozilla.  Thunderbird has the similar options.
Signed-off-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

With CONFIG_DEBUG_LOCK_ALLOC turned off i was getting sporadic failures in
the locking self-test:

  ------------>
  | Locking API testsuite:
  ----------------------------------------------------------------------------
                                   | spin |wlock |rlock |mutex | wsem | rsem |
    --------------------------------------------------------------------------
                       A-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
                   A-B-B-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
               A-B-B-C-C-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
               A-B-C-A-B-C deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
           A-B-B-C-C-D-D-A deadlock:  ok  |FAILED|  ok  |  ok  |  ok  |  ok  |
           A-B-C-D-B-D-D-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |  ok  |
           A-B-C-D-B-C-D-A deadlock:  ok  |  ok  |  ok  |  ok  |  ok  |FAILED|

after much debugging it turned out to be caused by accidental chain-hash
key collisions.  The current hash is:

 #define iterate_chain_key(key1, key2) \
	(((key1) << MAX_LOCKDEP_KEYS_BITS/2) ^ \
	((key1) >> (64-MAX_LOCKDEP_KEYS_BITS/2)) ^ \
 	(key2))

where MAX_LOCKDEP_KEYS_BITS is 11.  This hash is pretty good as it will
shift by 5 bits in every iteration, where every new ID 'mixed' into the
hash would have up to 11 bits.  But because there was a 6 bits overlap
between subsequent IDs and their high bits tended to be similar, there was
a chance for accidental chain-hash collision for a low number of locks
held.

the solution is to shift by 11 bits:

 #define iterate_chain_key(key1, key2) \
	(((key1) << MAX_LOCKDEP_KEYS_BITS) ^ \
	((key1) >> (64-MAX_LOCKDEP_KEYS_BITS)) ^ \
 	(key2))

This keeps the hash perfect up to 5 locks held, but even above that the
hash is still good because 11 bits is a relative prime to the total 64
bits, so a complete match will only occur after 64 held locks (which doesnt
happen in Linux).  Even after 5 locks held, entropy of the 5 IDs mixed into
the hash is already good enough so that overlap doesnt generate a colliding
hash ID.

with this change the false positives went away.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

o As per ELF specifications, it looks like that elf note "namesz" field
  contains the length of "name" including the size of null character.  And
  currently we are filling "namesz" without taking into the consideration
  the null character size.

o Kexec-tools performs this check deligently hence I ran into the issue
  while trying to open /proc/kcore in kexec-tools for some info.
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This unlock/lock on a super-unlikely path isn't worth the kernel text.

Cc: Vadim Lobanov <vlobanov@speakeasy.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Perform a code cleanup against the expand_fdtable() and expand_files()
functions inside fs/file.c.  It aims to make the flow of code within these
functions simpler and easier to understand, via added comments and modest
refactoring.
Signed-off-by: Vadim Lobanov <vlobanov@speakeasy.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

* fix copright typo
* remove trailing whitespace
* remove Kernel Traffic from Resources. Zack, it was great reading!
* Name Arjan by name and fix URL of "How to NOT" paper.
* Remove "Last updated" tag.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>