Improve the error handling for mm/sparse.c::sparse_add_one_section().  And I
see no reason to check 'usemap' until holding the 'pgdat_resize_lock'.

[geoffrey.levand@am.sony.com: sparse_index_init() returns -EEXIST]
Cc: Christoph Lameter <clameter@sgi.com>
Acked-by: Dave Hansen <haveblue@us.ibm.com>
Cc: Rik van Riel <riel@redhat.com>
Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Since sparse_index_alloc() can return NULL on memory allocation failure,
we must deal with the failure condition when calling it.
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Ingo hit some BUG_ONs that were probably caused by these missing unlocks
causing an unbalance.  He couldn't reproduce the bug reliably, so it's
unknown that it's definitly fixing the problem he hit, but it's a fairly
good chance, and this fixes an obvious bug.

[ Dave: "Ingo followed up that he hit some lockdep related output with
         this applied, so it may not be right.  I'll look at it after
         xmas if no-one has it figured out before then."
  Akpm: "It looks pretty correct to me though." ]
Signed-off-by: Dave Jones <davej@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This fixes some of the alpha-specific build problems, except a) modpost
warning about COMMON symbol "saved_config" and b) nasty final link
failure with gcc-4.x, -Os and scsi-disk driver configured built-in
(due to jump table in .rodata referencing discarded .exit.text).

- build failure with gcc-4.2.x: fix up casts in cia_io* routines to avoid
  warnings ('discards qualifiers from pointer target type'), which are
  failures, thanks to -Werror;
- modpost warnings: add missing __init qualifier for titan and marvel;
  for non-generic build, move machine vectors from .data to .data.init.refok
  section;
- unbreak CPU-specific optimization: rearrange cpuflags-y assignments
  so that extended -mcpu value (ev56, pca56, ev67) overrides basic
  one (ev5, ev6) and not vice versa.
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

As it turns out, the kernel divides by EXT3_INODES_PER_GROUP(s) when
mounting an ext3 filesystem.  If that number is zero, a crash follows.
Below a patch.

This crash was reported by Joeri de Ruiter, Carst Tankink and Pim Vullers.

Cc: <linux-ext4@vger.kernel.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This was introduced in 4af8e944Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

SPARSEMEM_VMEMMAP needs to be a selectable config option to support
building the kernel both with and without sparsemem vmemmap support.  This
selection is desirable for platforms which could be configured one way for
platform specific builds and the other for multi-platform builds.
Signed-off-by: Miguel Botón <mboton@gmail.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Share net is not supported, Rusty is an "idiot" .
Signed-off-by: Sheela Sequeira <sheela.sequeira@gmail.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

ecryptfs_destroy_mount_crypt_stat() checks whether each
auth_tok->global_auth_tok_key is nonzero and if so puts that key.  However,
in some early mount error paths nothing has initialized the pointer, and we
try to key_put() garbage.  Running the bad cipher tests in the testsuite
exposes this, and it's happy with the following change.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

While auditing proc_doulongvec_ms_jiffies_minmax() usage in kernel, I found
a bug in drivers/parport/procfs.c, incorrectly using sizeof(int) instead of
sizeof(unsigned long)

Only 64bit arches are affected by this old bug.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Reorder at32_rtc_probe() so that it's safe (no oopsing) to fire the
IRQ handler the instant that it's registered.  (Bug noted via "Debug
shared IRQ handlers" kernel debug option.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: <hcegtvedt@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

First of all, thanks to Bob Tracy <rct@frus.com> and
Michael Cree <mcree@orcon.net.nz> for testing.
Especially to Bob, as he has done titanic multi-day git-bisect
work that finally helped to reproduce and nail down the bug
(http://bugzilla.kernel.org/show_bug.cgi?id=9457).

[ev6-]stxncpy.S: it's t12, not t2 register that is supposed to contain
the last byte offset upon return. As a result of wrong register use
(which was my fault back in 2003, IIRC), under some circumstances extra
terminating zero bytes were added to destination string. This particularly
led to incorrect DEVPATH strings generated in uevent and therefore to udev
problems.

strncpy.S: unrelated bug I found while testing the above fix - destination
is not properly zero-padded then a byte count exceeds source length.
Actually this is addition to strncpy fix from last year.
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Bob Tracy <rct@frus.com>
Cc: Michael Cree <mcree@orcon.net.nz>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Sometimes when UML is debugged gdb miss breakpoints.

When process traced by gdb do fork, debugger remove breakpoints from
child address space. There is possibility to trace more than one fork,
but this not work with UML, I guess (only guess) there is a deadlock -
gdb waits for UML and UML waits for gdb.

When clone() is called with SIGCHLD and CLONE_VM flags, gdb see this
as PTRACE_EVENT_FORK not as PTRACE_EVENT_CLONE and remove breakpoints
from child and at the same time from traced process, because either
have the same address space.

Maybe it is possible to do fix in gdb, but I'm not sure if there is
easy way to find out if traced and child processes share memory. So I
do fix for UML, it simply do not call clone() with both SIGCHLD and
CLONE_VM flags together.  Additionally __WALL flag is used for
waitpid() to assure not miss clone and normal process events.

[ jdike - checkpatch fixes ]
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Revert commit efa4d2fb ("Hibernation:
Use temporary page tables for kernel text mapping on x86_64") because it
causes my t61p to reboot right at the end of resume-from-disk.  For
reasons unknown at this time.

Cc: Pavel Machek <pavel@ucw.cz>
Cc: Andi Kleen <ak@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

make[3]: *** No rule to make target `/usr/src/devel/include/linux/ticable.h', needed by `/usr/src/devel/usr/include/linux/ticable.h'.  Stop.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* git://git.linux-nfs.org/pub/linux/nfs-2.6:
  MAINTAINERS: update the NFS CLIENT entry
  NFS: Fix an Oops in NFS unmount
  Revert "NFS: Ensure we return zero if applications attempt to write zero bytes"
  SUNRPC xprtrdma: fix XDR tail buf marshalling for all ops
  NFSv2/v3: Fix a memory leak when using -onolock
  NFS: Fix NFS mountpoint crossing...

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
  ocfs2: Re-journal buffers after transaction extend
  ocfs2: Allow for debugging of transaction extends
  ocfs2: Don't panic when truncating an empty extent
  ocfs2: fix exit-while-locked bug in ocfs2_queue_orphans()

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6:
  PCI: Restore PCI expansion ROM P2P prefetch window creation

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
  HOWTO: update misspelling and word incorrected
  add stable_api_nonsense.txt in korean
  HOWTO: change addresses of maintainer and lxr url for Korean HOWTO
  Add Documentation for FAIR_USER_SCHED sysfs files
  HOWTO: Change man-page maintainer address for Japanese HOWTO
  tipar: remove obsolete module
  kobject: fix the documentation of how kobject_set_name works

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: revert portions of "UNUSUAL_DEV: Sync up some reported devices from Ubuntu"
  usb: Remove broken optimisation in OHCI IRQ handler
  USB: at91_udc: correct hanging while disconnecting usb cable
  USB: use IRQF_DISABLED for HCD interrupt handlers
  USB: fix locking loop by avoiding flush_scheduled_work
  usb.h: fix kernel-doc warning
  USB: option: Bind to the correct interface of the Huawei E220
  USB: cp2101: new device id
  usb-storage: Fix devices that cannot handle 32k transfers
  USB: sierra: fix product id

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  ide: fix ->io_32bit race in set_io_32bit()
  ide: remove stale changelog from ide-probe.c
  ide: remove stale changelog from ide-disk.c
  ide: remove dead code from __ide_dma_test_irq()
  hpt366: fix HPT37x PIO mode timings (take 2)
  pdc202xx_new: fix Promise TX4 support
  ide-cd: remove dead post_transform_command()
  ide: DMA reporting and validity checking fixes (take 3)
  ide: add /sys/bus/ide/devices/*/{model,firmware,serial} sysfs entries
  ide: coding style fixes for drivers/ide/setup-pci.c
  ide: fix ide_scan_pcibus() error message
  ide: deprecate CONFIG_BLK_DEV_OFFBOARD
  ide: add missing checks for control register existence
  ide-scsi: add ide_scsi_hex_dump() helper

ocfs2_extend_trans() might call journal_restart() which will commit dirty
buffers and then restart the transaction. This means that any buffers which
still need changes should be passed to journal_access() again. Some paths
during extend weren't doing this right.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

The nastiest cases of transaction extends are also the rarest. We can expose
them more quickly at the expense of performance by going straight to the
journal_restart() in ocfs2_extend_trans(). Wrap things in OCFS2_DEBUG_FS so
that we only do this when "expensive debugging" is turned on.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

This BUG_ON() was unintentionally left in after the sparse file support was
written.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

We're holding the cluster lock when a failure might happen in
ocfs2_dir_foreach() so it needs to be released.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

This reverts one change from 67fa1062
that prevented userspace from seing the "driver disk" lun in a san disk
device.  The kernel shouldn't do this, it's up to userspace to handle
this properly, if it somehow wants to filter this away.


Cc: Ben Collins <bcollins@ubuntu.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Phil Dibowitz <phil@ipom.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

The OHCI IRQ handler has an optimisation that avoids reading some
chip registers when the controller reports that the interrupt was
triggered *only* because completed requests were written into the
controller's "done list" and handed to the host.

This mechanism can't be used on some controllers.  Among others, it
fails for the SA1111 and the AMCC 440EP PowerPC processor.

This patch removes the optimisation and makes the code clearer.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Correct hanging while disconnecting the USB device cable.  Prevent a race
between vbus and UDP interrupts.  This bug was tracked on at91sam9260ek
boards.

A usb resume interrupt was firing after the vbus interrupt : the IP was
then already stoped and not able to deal with it (no more clock).  A simple
interrupt disabling is ok as the "end of bus reset" irq is non maskable and
ok to resume the USB device IP.
Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Host controller IRQs are supposed to be serviced with interrupts
disabled.  This patch (as1026) adds an IRQF_DISABLED flag to all the
controller drivers that lack it.  It also replaces the
spin_lock_irqsave() and spin_unlock_irqrestore() calls in uhci_irq()
with simple spin_lock() and spin_unlock().

This fixes Bugzilla #9335.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

This patch (as1027) replaces a call to flush_scheduled_work() -- a
dangerous routine to invoke, especially while holding any sort of lock
-- with calls to cancel_work_sync() and cancel_delayed_work_sync().

This fixes Bugzilla #9532.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Fix kernel-doc warning in usb.h:
Warning(linux-2.6.24-rc3-git7//include/linux/usb.h:166): No description found for parameter 'sysfs_files_created'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

This fixes a bunch of problems we are having with the Huawei devices...
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Jaime Velasco Juan <jsagarribay@gmail.com>
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

This adds a device ID for the Aerocomm Radio Modem, which uses the
cp2102.  I'm sure changing num_bulk_in/num_bulk_out to NUM_DONT_CARE
is the wrong fix, but this is the only device I have with a cp2102,
so I have no idea what a good global value would be, if there is one.
Zero didn't work with this device.

From: Jeff Long <JeffLong@mitre.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

When a device cannot handle the smallest previously limited transfer
size (64 blocks) without stalling, limit the device to the amount of
packets that fit in a platform native page.

The lowest possible limit is PAGE_CACHE_SIZE, so if the device is ever
used on a platform that has larger than 8K pages, you lose unless you
can convince the device firmware folks to fix the issue.

Cc: Mathew Dharm <mdharm-scsi@one-eyed-alien.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Doug Maxey <dwm@austin.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Attached is a patch to fix the addition of the new product ids I sent.

It is against 2.6.24-rc4, as Linus included the broken version of the
patch I sent you in that tree. :(

Not sure if this is the right method to go about this, but hopefully I got
it right this time.
Signed-off-by: Andrew Gilmore <agilmore@wirelessbeehive.com>
CC: Kevin Lloyd <klloyd@sierrawireless.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Restore PCI expansion ROM P2P prefetch window creation.

This patch reverts previous "Avoid creating P2P prefetch
window for expansion ROMs" change due to regressions that
were spotted on some systems.
Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: barrios <minchan.kim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: barrios <minchan.kim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

So sorry. again My mail is set with EUC-kR.
I'll resend with UTF-8.
Signed-off-by: barrios <minchan.kim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

This patch adds documentation about /sys/kernel/uids/<uid>/cpu_share
to Documentation/ABI.
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>