Commit Graph

40678 Commits

Author SHA1 Message Date
Stelian Pop
5b44f1aaee Input: MAC mouse button emulation - relax dependencies
Mouse button emulation for the one-button mouse Apple machines isn't
restricted to older ADB based machines. There are PPC Powerbooks where
the keyboard and the mouse are no longer on the ADB bus but regular USB,
and users still like (and need) to be able to emulate the middle mouse
button with F11 and the right mouse button with F12.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-17 01:06:36 -05:00
Julien BLACHE
e5d9832c20 Input: appletouch - use canonical names in USB IDs
Small readability improvement for appletouch: use canonical names
instead of raw USB IDs for some of the devices.

Signed-off-by: Julien BLACHE <jb@jblache.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-17 01:06:25 -05:00
Julien BLACHE
009ad0e7b4 Input: appletouch - add Geyser IV support
The new Core2 Duo MacBook Pro has a new keyboard+trackpad named
"Geyser IV".

According to the Info.plist in the OS X kext, it looks like the Geyser
IV trackpad is identical to the Geyser III trackpad: same IOClass
(AppleUSBGrIIITrackpad), same acceleration tables.

Signed-off-by: Julien BLACHE <jb@jblache.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-17 01:06:13 -05:00
Jason Parekh
00081d3729 Input: appletouch - verious updates for MacBooks
Change a bit the finger detection method used by the appletouch
driver to reduce touchpad "jumpiness":

 - Adjust the method for detecting multiple fingers. Previously, it
   recognized a new finger when a low sensor reading is followed by
   a high sensor reading. The new method checks for 'humps' in the
   sensor readings, so there doesn't necessarily have to be a low
   sensor between two high sensors for two fingers to be triggered.
   This allows detecting presence of two fingers on the touchpad
   even when they touch each other.

 - Change absolute coordinate calculation to us to get rid of "jumps".
   Instead of using full value from a sensor once it passes the
   threshold subtract theshold value from the reading.

 - Allow adjusting threshold value via module parameter.

The patch doesn't seem to affect the Powerbooks but does greatly improve
the touchpad behaviour on the MacBooks.

Signed-off-by: Jason Parekh <jasonparekh@gmail.com>
Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-17 01:05:58 -05:00
Sergey Vlasov
eb5d5829b3 Input: psmouse - fix attribute access on 64-bit systems
psmouse_show_int_attr() and psmouse_set_int_attr() were accessing
unsigned int fields as unsigned long, which gave garbage on x86_64.

Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-09 00:34:27 -05:00
Dmitry Torokhov
721556150e Input: mice - handle errors when registering input devices
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-05 22:40:19 -05:00
Dmitry Torokhov
127278ce22 Input: joysticks - handle errors when registering input devices
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-05 22:40:09 -05:00
Dmitry Torokhov
52c1f5704d Input: touchscreens - handle errors when registering input devices
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-05 22:40:03 -05:00
Dmitry Torokhov
2b03b60e6b Input: keyboards - handle errors when registering input devices
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-05 22:39:56 -05:00
Anssi Hannula
41ad5fbabd Input: HID - add a quirk for the Logitech USB Receiver
Logitech USB Receiver (046d:c101) has two interfaces. The first one
contains fields from HID_UP_KEYBOARD and HID_UP_LED, and the other one
contains fields from HID_UP_CONSUMER and HID_UP_LOGIVENDOR. This device
is used with multiple wireless Logitech products, including UltraX Media
Remote.

All fields on both interfaces are either keys or leds. All fields in the
first interface are marked as Absolute, while the fields in the second
interface are marked as Relative. Marking the keys as relative causes
hidinput_hid_event() to send release events right after key press
events.

The device has EV_REP set, so the userspace expects the device to send
repeat events if a key is held down. However, as hidinput_hid_event()
sends release events immediately, repeat events are not sent at all. In
fact, the userspace has no way of knowing if a key is being held down.

Fix this by adding a quirk for 046d:c101 which changes relative keys to
absolute ones.

Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-04 22:49:53 -05:00
Dmitry Torokhov
752c58a471 Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-11-04 22:42:39 -05:00
Brandon Philips
e52b29c2a6 Input: drivers/char/keyboard.c - small cleanup in k_cur()
To save a char pointer in the final assembly change to alternate string
form.

Signed-off-by: Brandon Philips <brandon@ifup.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-11-04 22:09:08 -05:00
Linus Torvalds
10b1fbdb0a Make sure "user->sigpending" count is in sync
The previous commit (45c18b0bb5, aka "Fix
unlikely (but possible) race condition on task->user access") fixed a
potential oops due to __sigqueue_alloc() getting its "user" pointer out
of sync with switch_user(), and accessing a user pointer that had been
de-allocated on another CPU.

It still left another (much less serious) problem, where a concurrent
__sigqueue_alloc and swich_user could cause sigqueue_alloc to do signal
pending reference counting for a _different_ user than the one it then
actually ended up using.  No oops, but we'd end up with the wrong signal
accounting.

Another case of Oleg's eagle-eyes picking up the problem.

This is trivially fixed by just making sure we load whichever "user"
structure we decide to use (it doesn't matter _which_ one we pick, we
just need to pick one) just once.

Acked-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-04 13:03:00 -08:00
Linus Torvalds
45c18b0bb5 Fix unlikely (but possible) race condition on task->user access
There's a possible race condition when doing a "switch_uid()" from one
user to another, which could race with another thread doing a signal
allocation and looking at the old thread ->user pointer as it is freed.

This explains an oops reported by Lukasz Trabinski:
	http://permalink.gmane.org/gmane.linux.kernel/462241

We fix this by delaying the (reference-counted) freeing of the user
structure until the thread signal handler lock has been released, so
that we know that the signal allocation has either seen the new value or
has properly incremented the reference count of the old one.

Race identified by Oleg Nesterov.

Cc: Lukasz Trabinski <lukasz@wsisiz.edu.pl>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-04 10:06:02 -08:00
Linus Torvalds
80491eb90c Revert unintentional "volatile" changes in ipc/msg.c
Commit 5a06a363ef ("[PATCH] ipc/msg.c:
clean up coding style") breaks fakeroot on Alpha (variously hangs or
oopses), according to a report by Falk Hueffner.

The fact that the code seems to rely on compiler access ordering through
the use of "volatile" is a pretty certain sign that the code has locking
problems, and we should fix those properly and then remove the whole
"volatile" entirely.

But in the meantime, the movement of "volatile" was unintentional, and
should be reverted.

Cc: Falk Hueffner <falk@debian.org>
Cc: Andrew Morton <akpm@osdl.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-04 09:55:00 -08:00
Jens Axboe
ddac0d39cf [PATCH] splice: fix problem introduced with inode diet
After the inode slimming patch that unionised i_pipe/i_bdev/i_cdev, it's
no longer enough to check for existance of ->i_pipe to verify that this
is a pipe.

Original patch from Eric Dumazet <dada1@cosmosbay.com>
Final solution suggested by Linus.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-04 08:45:39 -08:00
Linus Torvalds
aaa9b97139 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6:
  JFS: Remove redundant xattr permission checking
2006-11-04 08:11:20 -08:00
Linus Torvalds
a0d2db2658 Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6:
  PCI: Let PCI_MULTITHREAD_PROBE depend on BROKEN
  PCI: Revert "PCI: i386/x86_84: disable PCI resource decode on device disable"
2006-11-03 12:28:45 -08:00
Linus Torvalds
ced3985fae Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: use MII hooks only if CONFIG_MII is enabled
  USB Storage: unusual_devs.h entry for Sony Ericsson P990i
  USB: xpad: additional USB id's added
  USB: fix compiler issues with newer gcc versions
  USB: HID: add blacklist AIRcable USB, little beautification
  USB: usblp: fix system suspend for some systems
  USB: failure in usblp's error path
  usbtouchscreen: use endpoint address from endpoint descriptor
  USB: sierra: Fix id for Sierra Wireless MC8755 in new table
  USB: new VID/PID-combos for cp2101
  hid-core: big-endian fix fix
  USB: usb-storage: Unusual_dev update
  USB: add another sierra wireless device id
2006-11-03 12:28:27 -08:00
Andreas Gruenbacher
f1f2d8713d [PATCH] Fix user.* xattr permission check for sticky dirs
The user.* extended attributes are only allowed on regular files and
directories.  Sticky directories further restrict write access to the owner
and privileged users.  (See the attr(5) man page for an explanation.)

The original check in ext2/ext3 when user.* xattrs were merged was more
restrictive than intended, and when the xattr permission checks were moved
into the VFS, read access to user.* attributes on sticky directores ended
up being denied in addition.

Originally-from: Gerard Neil <xyzzy@devferret.org>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:59 -08:00
Stephen Rothwell
8ce08464d2 [PATCH] Fix sys_move_pages when a NULL node list is passed
sys_move_pages() uses vmalloc() to allocate an array of structures that is
fills with information passed from user mode and then passes to
do_stat_pages() (in the case the node list is NULL).  do_stat_pages()
depends on a marker in the node field of the structure to decide how large
the array is and this marker is correctly inserted into the last element of
the array.  However, vmalloc() doesn't zero the memory it allocates and if
the user passes NULL for the node list, then the node fields are not filled
in (except for the end marker).  If the memory the vmalloc() returned
happend to have a word with the marker value in it in just the right place,
do_pages_stat will fail to fill the status field of part of the array and
we will return (random) kernel data to user mode.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:59 -08:00
Peer Chen
cda5e61a8e [PATCH] IDE: Add the support of nvidia PATA controllers of MCP67 to amd74xx.c
Add support for PATA controllers of MCP67 to amd74xx.c.

Signed-off-by: Peer Chen <pchen@nvidia.com>
Cc: Jeff Garzik <jeff@garzik.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:59 -08:00
Oleg Nesterov
8804023061 [PATCH] fix Documentation/accounting/getdelays.c buf size
getdelays reports a "fatal reply error, errno 258". We don't have enough room
for multi-threaded exit (PID + TGID).

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:59 -08:00
Amol Lad
1f604c4bc0 [PATCH] drivers/isdn/hysdn/hysdn_sched.c: sleep after taking spinlock fix
spin_lock_irq{save,restore} is incorrectly called here (the function can
sleep after acquring the lock).

done the necessary corrections and removed unwanted cli/sti.

Signed-off-by: Amol Lad <amol@verismonetworks.com>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:59 -08:00
Stephen Rothwell
43530d2b04 [PATCH] powerpc: wire up sys_migrate_pages
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:59 -08:00
Stephen Rothwell
3fd5939798 [PATCH] Create compat_sys_migrate_pages
This is needed on bigendian 64bit architectures.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:59 -08:00
Jeff Dike
1f6f61649d [PATCH] uml: include tidying
In order to get the __NR_* constants, we need sys/syscall.h.
linux/unistd.h works as well since it includes syscall.h, however syscall.h
is more parsimonious.  We were inconsistent in this, and this patch adds
syscall.h includes where necessary and removes linux/unistd.h includes
where they are not needed.

asm/unistd.h also includes the __NR_* constants, but these are not the
glibc-sanctioned ones, so this also removes one such inclusion.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:59 -08:00
Jeff Dike
53b173327d [PATCH] uml: fix I/O hang
Fix a UML hang in which everything would just stop until some I/O happened
- a ping, someone whacking the keyboard - at which point everything would
start up again as though nothing had happened.

The cause was gcc reordering some code which absolutely needed to be
executed in the order in the source.  When unblock_signals switches signals
from off to on, it needs to see if any interrupts had happened in the
critical section.  The interrupt handlers check signals_enabled - if it is
zero, then the handler adds a bit to the "pending" bitmask and returns.
unblock_signals checks this mask to see if any signals need to be
delivered.

The crucial part is this:
	signals_enabled = 1;
	save_pending = pending;
	if(save_pending == 0)
		return;
	pending = 0;

In order to avoid an interrupt arriving between reading pending and setting
it to zero, in which case, the record of the interrupt would be erased,
signals are enabled.

What happened was that gcc reordered this so that 'save_pending = pending'
came before 'signals_enabled = 1', creating a one-instruction window within
which an interrupt could arrive, set its bit in pending, and have it be
immediately erased.

When the I/O workload is purely disk-based, the loss of a block device
interrupt stops the entire I/O system because the next block request will
wait for the current one to finish.  Thus the system hangs until something
else causes some I/O to arrive, such as a network packet or console input.

The fix to this particular problem is a memory barrier between enabling
signals and reading the pending signal mask.  An xchg would also probably
work.

Looking over this code for similar problems led me to do a few more
things:

- make signals_enabled and pending volatile so that they don't get cached
  in registers

- add an mb() to the return paths of block_signals and unblock_signals so
  that the modification of signals_enabled doesn't get shuffled into the
  caller in the event that these are inlined in the future.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:58 -08:00
Jeff Mahoney
d2c89a4284 [PATCH] reiserfs: reset errval after initializing bitmap cache
Callers after reiserfs_init_bitmap_cache() expect errval to contain -EINVAL
until much later.  If a condition fails before errval is reset later,
reiserfs_fill_super() will mistakenly return 0, causing an Oops in
do_add_mount().  This patch resets errval to -EINVAL after the call.

I view this as a temporary fix and real error codes should be used
throughout reiserfs_fill_super().

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:58 -08:00
Andrew Morton
d3e5a938e7 [PATCH] spi section fix
WARNING: vmlinux - Section mismatch: reference to .init.text:spi_register_board_info from __ksymtab_gpl between '__ksymtab_spi_register_board_info' (at offset 0xc032f7d0) and '__ksymtab_spi_alloc_master'

Fix this by removing the export.

Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:58 -08:00
Rafael J. Wysocki
b918f6e62c [PATCH] swsusp: debugging
Add a swsusp debugging mode.  This does everything that's needed for a suspend
except for actually suspending.  So we can look in the log messages and work
out a) what code is being slow and b) which drivers are misbehaving.

(1)
# echo testproc > /sys/power/disk
# echo disk > /sys/power/state

This should turn off the non-boot CPU, freeze all processes, wait for 5
seconds and then thaw the processes and the CPU.

(2)
# echo test > /sys/power/disk
# echo disk > /sys/power/state

This should turn off the non-boot CPU, freeze all processes, shrink
memory, suspend all devices, wait for 5 seconds, resume the devices etc.

Cc: Pavel Machek <pavel@ucw.cz>
Cc: Stefan Seyfried <seife@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:58 -08:00
Andrew Morton
90d5390944 [PATCH] acpi_noirq section fix
WARNING: vmlinux - Section mismatch: reference to .init.data:acpi_noirq from .text between 'pcibios_penalize_isa_irq' (at offset 0xc026ffa1) and 'pirq_serverworks_get'

Acked-by: "Brown, Len" <len.brown@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:58 -08:00
Andrew Morton
19c6b6ed3f [PATCH] schedule removal of FUTEX_FD
Apparently FUTEX_FD is unfixably racy and nothing uses it (or if it does, it
shouldn't).

Add a warning printk, give any remaining users six months to migrate off it.

Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:58 -08:00
Andrew Morton
f46c483357 [PATCH] Add printk_timed_ratelimit()
printk_ratelimit() has global state which makes it not useful for callers
which wish to perform ratelimiting at a particular frequency.

Add a printk_timed_ratelimit() which utilises caller-provided state storage to
permit more flexibility.

This function can in fact be used for things other than printk ratelimiting
and is perhaps poorly named.

Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:58 -08:00
Daniel Yeisley
7f6b8876c7 [PATCH] init_reap_node() initialization fix
It looks like there is a bug in init_reap_node() in slab.c that can cause
multiple oops's on certain ES7000 configurations.  The variable reap_node
is defined per cpu, but only initialized on a single CPU.  This causes an
oops in next_reap_node() when __get_cpu_var(reap_node) returns the wrong
value.  Fix is below.

Signed-off-by: Dan Yeisley <dan.yeisley@unisys.com>
Cc: Andi Kleen <ak@suse.de>
Acked-by: Christoph Lameter <clameter@engr.sgi.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:58 -08:00
Yvan Seth
d13adb6046 [PATCH] ipmi_si_intf.c sets bad class_mask with PCI_DEVICE_CLASS
Taken from http://bugzilla.kernel.org/show_bug.cgi?id=7439

It looks like device registration in drivers/char/ipmi/ipmi_si_intf.c was
cleaned up and a small error was made when setting the class_mask.  The fix
is simple as the correct mask value is defined in the code but is not used.

Acked-by: Corey Minyard <minyard@acm.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:57 -08:00
Srinivasa Ds
7ef55b8a05 [PATCH] NFS4: fix for recursive locking problem
When I was performing some operations on NFS, I got below error on server
side.

  =============================================
  [ INFO: possible recursive locking detected ]
  2.6.19-prep #1
  ---------------------------------------------
  nfsd4/3525 is trying to acquire lock:
   (&inode->i_mutex){--..}, at: [<c0611e5a>] mutex_lock+0x21/0x24

  but task is already holding lock:
   (&inode->i_mutex){--..}, at: [<c0611e5a>] mutex_lock+0x21/0x24

  other info that might help us debug this:
  2 locks held by nfsd4/3525:
   #0:  (client_mutex){--..}, at: [<c0611e5a>] mutex_lock+0x21/0x24
   #1:  (&inode->i_mutex){--..}, at: [<c0611e5a>] mutex_lock+0x21/0x24

  stack backtrace:
   [<c04051ed>] show_trace_log_lvl+0x58/0x16a
   [<c04057fa>] show_trace+0xd/0x10
   [<c0405913>] dump_stack+0x19/0x1b
   [<c043b6f1>] __lock_acquire+0x778/0x99c
   [<c043be86>] lock_acquire+0x4b/0x6d
   [<c0611ceb>] __mutex_lock_slowpath+0xbc/0x20a
   [<c0611e5a>] mutex_lock+0x21/0x24
   [<c047fd7e>] vfs_rmdir+0x76/0xf8
   [<f94b7ce9>] nfsd4_clear_clid_dir+0x2c/0x41 [nfsd]
   [<f94b7de9>] nfsd4_remove_clid_dir+0xb1/0xe8 [nfsd]
   [<f94b307b>] laundromat_main+0x9b/0x1c3 [nfsd]
   [<c04333d6>] run_workqueue+0x7a/0xbb
   [<c0433d0b>] worker_thread+0xd2/0x107
   [<c0436285>] kthread+0xc3/0xf2
   [<c0402005>] kernel_thread_helper+0x5/0xb
  ===================================================================

Cause for this problem was,2 successive mutex_lock calls on 2 diffrent inodes ,as shown below

	static int
	nfsd4_clear_clid_dir(struct dentry *dir, struct dentry *dentry)
	{
	        int status;

	        /* For now this directory should already be empty, but we empty it of
        	 * any regular files anyway, just in case the directory was created by
	         * a kernel from the future.... */
        	nfsd4_list_rec_dir(dentry, nfsd4_remove_clid_file);
	        mutex_lock(&dir->d_inode->i_mutex);
	        status = vfs_rmdir(dir->d_inode, dentry);
	...

	int vfs_rmdir(struct inode *dir, struct dentry *dentry)
	{
	        int error = may_delete(dir, dentry, 1);

	        if (error)
	                return error;

	        if (!dir->i_op || !dir->i_op->rmdir)
        	        return -EPERM;

	        DQUOT_INIT(dir);

	        mutex_lock(&dentry->d_inode->i_mutex);
	...

So I have developed the patch to overcome this problem.

Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:57 -08:00
Akinobu Mita
77d6e1397a [PATCH] edac_mc: fix error handling
Call sysdev_class_unregister() on failure in edac_sysfs_memctrl_setup()
and decrease identation level for clear logic.

Acked-by: Doug Thompson <norsk5@xmission.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:57 -08:00
OGAWA Hirofumi
7011774db8 [PATCH] gfs2: ->readpages() fixes
This just ignore the remaining pages, and remove unneeded unlock_pages().

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Steven French <sfrench@us.ibm.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:57 -08:00
OGAWA Hirofumi
2e990021bf [PATCH] fuse: ->readpages() cleanup
This just ignore the remaining pages.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Steven French <sfrench@us.ibm.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:57 -08:00
OGAWA Hirofumi
05ac9d4b3d [PATCH] cifs: ->readpages() fixes
This just ignore the remaining pages, and will fix a forgot put_pages_list().

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Steven French <sfrench@us.ibm.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:56 -08:00
OGAWA Hirofumi
029e332ea7 [PATCH] Cleanup read_pages()
Current read_pages() assume ->readpages() frees the passed pages.

This patch free the pages in ->read_pages(), if those were remaining in the
pages_list.  So, readpages() just can ignore the remaining pages in
pages_list.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Steven French <sfrench@us.ibm.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:56 -08:00
Randy Dunlap
5d861d920a [PATCH] lkdtm: cleanup headers and module_param/MODULE_PARM_DESC
Fix module_param/sysfs file permission typo.

Clean up MODULE_PARM_DESC strings to avoid fancy (and incorrect)
formatting.

Fix header includes for lkdtm; add some needed ones, remove unused ones;
and fix this gcc warning:
drivers/misc/lkdtm.c:150: warning: 'struct buffer_head' declared inside parameter list
drivers/misc/lkdtm.c:150: warning: its scope is only this definition or declaration, which is probably not what you want

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Ankita Garg <ankita@in.ibm.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:56 -08:00
Eric Sandeen
86f4f0f9ba [PATCH] fix UFS superblock alignment issues
ufs2 fails to mount on x86_64, claiming bad magic.  This is because
ufs_super_block_third's fs_un1 member is padded out by 4 bytes for 8-byte
alignment, pushing down the rest of the struct.

Forcing this to be packed solves it.  I took a quick look over other
on-disk structures and didn't immediately find other problems.  I was able
to mount & ls a populated ufs2 filesystem w/ this change.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Cc: Evgeniy Dushistov <dushistov@mail.ru>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:56 -08:00
nkalmala
941c7105dc [PATCH] mm: un-needed add-store operation wastes a few bytes
Un-needed add-store operation wastes a few bytes.
8 bytes wasted with -O2, on a ppc.

Signed-off-by: nkalmala <nkalmala@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:56 -08:00
Pavel Emelianov
c7e12b8389 [PATCH] Fix ipc entries removal
Fix two issuses related to ipc_ids->entries freeing.

1. When freeing ipc namespace we need to free entries allocated
   with ipc_init_ids().

2. When removing old entries in grow_ary() ipc_rcu_putref()
   may be called on entries set to &ids->nullentry earlier in
   ipc_init_ids().
   This is almost impossible without namespaces, but with
   them this situation becomes possible.

Found during OpenVZ testing after obvious leaks in beancounters.

Signed-off-by: Pavel Emelianov <xemul@openvz.org>
Cc: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:56 -08:00
Randy Dunlap
733b72c31e [PATCH] docbook: merge journal-api into filesystems.tmpl
Move journal-api into filesystems.tmpl as a Chapter.  Applies on top of the
previous docbook: make a filesystems book patch.

Remove trailing whitespace from journal-api chapter.  Align some of the
tags.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:56 -08:00
Randy Dunlap
c612093836 [PATCH] update some docbook comments
Correct a few comments in kernel-doc Doc and source files.

(akpm: note: the patch removes a non-ascii character and might have to be
applied by hand..)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:56 -08:00
Heiko Carstens
87c2b7c045 [PATCH] sys_pselect7 vs compat_sys_pselect7 uaccess error handling
758333458a fixes the not checked copy_to_user
return value of compat_sys_pselect7.  I ran into this too because of an old
source tree, but my fix would look quite a bit different to Andi's fix.

The reason is that the compat function IMHO should behave the very same as
the non-compat function if possible.  Since sys_pselect7 does not return
-EFAULT in this specific case, change the compat code so it behaves like
sys_pselect7.

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:55 -08:00
NeilBrown
7870db4c7f [PATCH] md: send online/offline uevents when an md array starts/stops
This allows udev to do something intelligent when an array becomes
available.

Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-11-03 12:27:55 -08:00