10 years agoALSA: powermac - Replace the rest of __init*
Takashi Iwai [Wed, 3 Jun 2009 06:13:15 +0000]
ALSA: powermac - Replace the rest of __init*

All __initdata should be __devinitdata as platform device is hotpluggable.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoALSA: sound/ppc: update annotations of serveral functions
Stephen Rothwell [Wed, 3 Jun 2009 05:35:19 +0000]
ALSA: sound/ppc: update annotations of serveral functions

[I am not sure if this is the correct approach as I don't know if any of
this actual hardware or drivers are really hot pluggable.]

Gets rid of these build warnings:

WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x5c): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_new()
The function __devinit .snd_pmac_probe() references
a function __init .snd_pmac_new().
If .snd_pmac_new is only used by .snd_pmac_probe then
annotate .snd_pmac_new with a matching annotation.

WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x10c): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_burgundy_init()
The function __devinit .snd_pmac_probe() references
a function __init .snd_pmac_burgundy_init().
If .snd_pmac_burgundy_init is only used by .snd_pmac_probe then
annotate .snd_pmac_burgundy_init with a matching annotation.

WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x164): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_daca_init()
The function __devinit .snd_pmac_probe() references
a function __init .snd_pmac_daca_init().
If .snd_pmac_daca_init is only used by .snd_pmac_probe then
annotate .snd_pmac_daca_init with a matching annotation.

WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x1dc): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_tumbler_init()
The function __devinit .snd_pmac_probe() references
a function __init .snd_pmac_tumbler_init().
If .snd_pmac_tumbler_init is only used by .snd_pmac_probe then
annotate .snd_pmac_tumbler_init with a matching annotation.

WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x1ec): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_tumbler_post_init()
The function __devinit .snd_pmac_probe() references
a function __init .snd_pmac_tumbler_post_init().
If .snd_pmac_tumbler_post_init is only used by .snd_pmac_probe then
annotate .snd_pmac_tumbler_post_init with a matching annotation.

WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x28c): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_awacs_init()
The function __devinit .snd_pmac_probe() references
a function __init .snd_pmac_awacs_init().
If .snd_pmac_awacs_init is only used by .snd_pmac_probe then
annotate .snd_pmac_awacs_init with a matching annotation.

WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x2bc): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_pcm_new()
The function __devinit .snd_pmac_probe() references
a function __init .snd_pmac_pcm_new().
If .snd_pmac_pcm_new is only used by .snd_pmac_probe then
annotate .snd_pmac_pcm_new with a matching annotation.

WARNING: sound/ppc/snd-powermac.o(.devinit.text+0x2f8): Section mismatch in reference from the function .snd_pmac_probe() to the function .init.text:.snd_pmac_attach_beep()
The function __devinit .snd_pmac_probe() references
a function __init .snd_pmac_attach_beep().
If .snd_pmac_attach_beep is only used by .snd_pmac_probe then
annotate .snd_pmac_attach_beep with a matching annotation.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoMerge git://git.infradead.org/~dwmw2/mtd-2.6.30
Linus Torvalds [Fri, 29 May 2009 15:52:13 +0000]
Merge git://git.infradead.org/~dwmw2/mtd-2.6.30

* git://git.infradead.org/~dwmw2/mtd-2.6.30:
  jffs2: Fix corruption when flash erase/write failure
  mtd: MXC NAND driver fixes (v5)

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Fri, 29 May 2009 15:50:15 +0000]
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  Revert "USB: Correct Makefile to make isp1760 buildable"
  usb-serial: fix crash when sub-driver updates firmware
  USB: isp1760: urb_dequeue doesn't always find the urbs
  USB: Yet another Conexant Clone to add to cdc-acm.c
  USB: atmel_usb_udc: Use kzalloc() to allocate ep structures
  USB: atmel-usba-udc : fix control out requests.

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
Linus Torvalds [Fri, 29 May 2009 15:49:52 +0000]
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
  Driver Core: do not oops when driver_unregister() is called for unregistered drivers
  sysfs: file.c: use create_singlethread_workqueue()

10 years agoMerge branch 'for-2.6.30' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Fri, 29 May 2009 15:49:09 +0000]
Merge branch 'for-2.6.30' of git://linux-nfs.org/~bfields/linux

* 'for-2.6.30' of git://linux-nfs.org/~bfields/linux:
  svcrdma: dma unmap the correct length for the RPCRDMA header page.
  nfsd: Revert "svcrpc: take advantage of tcp autotuning"
  nfsd: fix hung up of nfs client while sync write data to nfs server

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Fri, 29 May 2009 15:48:25 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: libps2 - better handle bad scheduler decisions
  Input: usb1400_ts - fix access to "device data" in resume function
  Input: multitouch - augment event semantics documentation
  Input: multitouch - add tracking ID to the protocol

10 years agoMerge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt...
Linus Torvalds [Fri, 29 May 2009 15:48:13 +0000]
Merge branch 'drm-intel-next' of git://git./linux/kernel/git/anholt/drm-intel

* 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  i915: Set object to gtt domain when faulting it back in
  drm/i915: Apply a big hammer to 865 GEM object CPU cache flushing.
  drm/i915: Fix tiling pitch handling on 8xx.

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 29 May 2009 15:47:53 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Compaq Presario CQ60 patching for Conexant
  sound: usb-audio: make the MotU Fastlane work again
  ALSA: Enable PCM hw_ptr_jiffies check only in xrun_debug mode
  ALSA: Fix invalid jiffies check after pause

10 years ago8250: Fix oops from setserial
Alan Cox [Thu, 28 May 2009 13:01:35 +0000]
8250: Fix oops from setserial

If you setserial a port which has never been initialised we change the type
but don't update the I/O method pointers. The same problem is true if you
change the io type of a port - but nobody ever does that so nobody noticed!

Remember the old type and when attaching if the type has changed reload the
port accessor pointers. We can't do it blindly as some 8250 drivers load custom
accessors and we must not stomp those.

Tested-by: Victor Seryodkin <vvscore@gmail.com>
Closes-bug: #13367
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoedac: AMD8111 & AMD8131 Kconfig fixup
Harry Ciao [Thu, 28 May 2009 21:34:43 +0000]
edac: AMD8111 & AMD8131 Kconfig fixup

The amd8111_edac.c driver will fail allmodconfig on architectures other
than PPC, introduce Kconfig dependency to avoid this, since both AMD8111
and AMD8131 chips are only adopted on Maple so far.

Signed-off-by: Harry Ciao <qingtao.cao@windriver.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoedac: AMD8111 & AMD8131 use dev_name()
Harry Ciao [Thu, 28 May 2009 21:34:42 +0000]
edac: AMD8111 & AMD8131 use dev_name()

The "bus_id" member in the device structure has been obsolete, use
dev_name() instead.

Signed-off-by: Harry Ciao <qingtao.cao@windriver.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agomemcg: fix build warning and avoid checking for mem != null again and again
Nikanth Karthikesan [Thu, 28 May 2009 21:34:41 +0000]
memcg: fix build warning and avoid checking for mem != null again and again

Fix build warning, "mem_cgroup_is_obsolete defined but not used" when
CONFIG_DEBUG_VM is not set.  Also avoid checking for !mem again and again.

Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agomm: account for MAP_SHARED mappings using VM_MAYSHARE and not VM_SHARED in hugetlbfs
Mel Gorman [Thu, 28 May 2009 21:34:40 +0000]
mm: account for MAP_SHARED mappings using VM_MAYSHARE and not VM_SHARED in hugetlbfs

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13302

hugetlbfs reserves huge pages but does not fault them at mmap() time to
ensure that future faults succeed.  The reservation behaviour differs
depending on whether the mapping was mapped MAP_SHARED or MAP_PRIVATE.
For MAP_SHARED mappings, hugepages are reserved when mmap() is first
called and are tracked based on information associated with the inode.
Other processes mapping MAP_SHARED use the same reservation.  MAP_PRIVATE
track the reservations based on the VMA created as part of the mmap()
operation.  Each process mapping MAP_PRIVATE must make its own
reservation.

hugetlbfs currently checks if a VMA is MAP_SHARED with the VM_SHARED flag
and not VM_MAYSHARE.  For file-backed mappings, such as hugetlbfs,
VM_SHARED is set only if the mapping is MAP_SHARED and the file was opened
read-write.  If a shared memory mapping was mapped shared-read-write for
populating of data and mapped shared-read-only by other processes, then
hugetlbfs would account for the mapping as if it was MAP_PRIVATE.  This
causes processes to fail to map the file MAP_SHARED even though it should
succeed as the reservation is there.

This patch alters mm/hugetlb.c and replaces VM_SHARED with VM_MAYSHARE
when the intent of the code was to check whether the VMA was mapped
MAP_SHARED or MAP_PRIVATE.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: <starlight@binnacle.cx>
Cc: Eric B Munson <ebmunson@us.ibm.com>
Cc: Adam Litke <agl@us.ibm.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agox86: ignore VM_LOCKED when determining if hugetlb-backed page tables can be shared...
Mel Gorman [Thu, 28 May 2009 21:34:37 +0000]
x86: ignore VM_LOCKED when determining if hugetlb-backed page tables can be shared or not

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13302

On x86 and x86-64, it is possible that page tables are shared beween
shared mappings backed by hugetlbfs.  As part of this,
page_table_shareable() checks a pair of vma->vm_flags and they must match
if they are to be shared.  All VMA flags are taken into account, including
VM_LOCKED.

The problem is that VM_LOCKED is cleared on fork().  When a process with a
shared memory segment forks() to exec() a helper, there will be shared
VMAs with different flags.  The impact is that the shared segment is
sometimes considered shareable and other times not, depending on what
process is checking.

What happens is that the segment page tables are being shared but the
count is inaccurate depending on the ordering of events.  As the page
tables are freed with put_page(), bad pmd's are found when some of the
children exit.  The hugepage counters also get corrupted and the Total and
Free count will no longer match even when all the hugepage-backed regions
are freed.  This requires a reboot of the machine to "fix".

This patch addresses the problem by comparing all flags except VM_LOCKED
when deciding if pagetables should be shared or not for hugetlbfs-backed
mapping.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: <starlight@binnacle.cx>
Cc: Eric B Munson <ebmunson@us.ibm.com>
Cc: Adam Litke <agl@us.ibm.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoatmel_lcdfb: correct fifo size for some products
Nicolas Ferre [Thu, 28 May 2009 21:34:36 +0000]
atmel_lcdfb: correct fifo size for some products

Remove wrong fifo size definition for some AT91 products.

Due to a misunderstanding of some AT91 datasheets, a fifo size of 2048
(words) has been introduced by mistake.  In fact, all products (AT91/AT32)
are sharing the same fifo size of 512 words.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Andrew Victor <avictor.za@gmail.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoS3C-fb: PM fix
Marek Szyprowski [Thu, 28 May 2009 21:34:35 +0000]
S3C-fb: PM fix

Correctly restore the FrameBuffer register state in the resume function.

Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoserial: 8250_gsc: fix printk format error
Alexander Beregalov [Thu, 28 May 2009 21:34:34 +0000]
serial: 8250_gsc: fix printk format error

drivers/serial/8250_gsc.c:44: warning: format '%lx' expects type
'long unsigned int', but argument 2 has type 'resource_size_t'

[akpm@linux-foundation.org: fix it to handle u64's]
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoparport_gsc: fix printk format error
Alexander Beregalov [Thu, 28 May 2009 21:34:33 +0000]
parport_gsc: fix printk format error

drivers/parport/parport_gsc.c:356: warning: format '%lx' expects type
'long unsigned int', but argument 2 has type 'resource_size_t'

[akpm@linux-foundation.org: fix it to handle u64's]
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoflat: fix data sections alignment
Oskar Schirmer [Thu, 28 May 2009 21:34:31 +0000]
flat: fix data sections alignment

The flat loader uses an architecture's flat_stack_align() to align the
stack but assumes word-alignment is enough for the data sections.

However, on the Xtensa S6000 we have registers up to 128bit width
which can be used from userspace and therefor need userspace stack and
data-section alignment of at least this size.

This patch drops flat_stack_align() and uses the same alignment that
is required for slab caches, ARCH_SLAB_MINALIGN, or wordsize if it's
not defined by the architecture.

It also fixes m32r which was obviously kaput, aligning an
uninitialized stack entry instead of the stack pointer.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Oskar Schirmer <os@emlix.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Bryan Wu <cooloney@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Johannes Weiner <jw@emlix.com>
Acked-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMAINTAINERS: change email address for Thomas Dahlmann
Thomas Dahlmann [Thu, 28 May 2009 21:34:30 +0000]
MAINTAINERS: change email address for Thomas Dahlmann

Signed-off-by: Thomas <dahlmann.thomas@arcor.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agodrivers/serial/mpc52xx_uart.c: fix array overindexing check
Roel Kluin [Thu, 28 May 2009 21:34:29 +0000]
drivers/serial/mpc52xx_uart.c: fix array overindexing check

The check for an overindexing of mpc52xx_uart_{ports,nodes} has an
off-by-one.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agomemcg: fix deadlock between lock_page_cgroup and mapping tree_lock
Daisuke Nishimura [Thu, 28 May 2009 21:34:28 +0000]
memcg: fix deadlock between lock_page_cgroup and mapping tree_lock

mapping->tree_lock can be acquired from interrupt context.  Then,
following dead lock can occur.

Assume "A" as a page.

 CPU0:
       lock_page_cgroup(A)
interrupted
-> take mapping->tree_lock.
 CPU1:
       take mapping->tree_lock
-> lock_page_cgroup(A)

This patch tries to fix above deadlock by moving memcg's hook to out of
mapping->tree_lock.  charge/uncharge of pagecache/swapcache is protected
by page lock, not tree_lock.

After this patch, lock_page_cgroup() is not called under mapping->tree_lock.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoprocfs: make errno values consistent when open pident vs exit(2) race occurs
KOSAKI Motohiro [Thu, 28 May 2009 21:34:21 +0000]
procfs: make errno values consistent when open pident vs exit(2) race occurs

proc_pident_instantiate() has following call flow.

proc_pident_lookup()
  proc_pident_instantiate()
    proc_pid_make_inode()

And, proc_pident_lookup() has following error handling.

const struct pid_entry *p, *last;
error = ERR_PTR(-ENOENT);
if (!task)
goto out_no_task;

Then, proc_pident_instantiate should return ENOENT too when racing against
exit(2) occur.

EINAL has two bad reason.
  - it implies caller is wrong. bad the race isn't caller's mistake.
  - man 2 open don't explain EINVAL. user often don't handle it.

Note: Other proc_pid_make_inode() caller already use ENOENT properly.

Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agocred: #include init.h in cred.h
Alexey Dobriyan [Thu, 28 May 2009 21:34:20 +0000]
cred: #include init.h in cred.h

linux/cred.h can't be included as first header (alphabetical order)
because it uses __init which is enough to break compilation on some archs.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agooom: fix possible oom_dump_tasks NULL pointer
David Rientjes [Thu, 28 May 2009 21:34:19 +0000]
oom: fix possible oom_dump_tasks NULL pointer

When /proc/sys/vm/oom_dump_tasks is enabled, it is possible to get a NULL
pointer for tasks that have detached mm's since task_lock() is not held
during the tasklist scan.  Add the task_lock().

Acked-by: Nick Piggin <npiggin@suse.de>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMAINTAINERS: pair EDAC-E752X P: and M: entries
Joe Perches [Thu, 28 May 2009 21:34:18 +0000]
MAINTAINERS: pair EDAC-E752X P: and M: entries

Entries should be P: name then M: email address.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agojffs2: Fix corruption when flash erase/write failure
Joakim Tjernlund [Thu, 28 May 2009 15:43:59 +0000]
jffs2: Fix corruption when flash erase/write failure

Erase errors such as:
"Newly-erased block contained word 0xa4ef223e at offset 0x0296a014"
and failure to write the clean marker,
moves the offending erase block to erasing list before calling
jffs2_erase_failed(). This is bad as jffs2_erase_failed() will
also move the block to the bad_list, but is now moving the
wrong block, causing FS corruption.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

10 years agomtd: MXC NAND driver fixes (v5)
Vladimir Barinov [Thu, 23 Apr 2009 11:47:22 +0000]
mtd: MXC NAND driver fixes (v5)

The following patch fixes:
 - re-initialization of host->col_addr which is used as byte index
   between the successive READID flash commands.
 - compile error when CONFIG_PM is enabled
 - pass on the error code from clk_get()
 - return -ENOMEM in case of failed ioremap()
 - pass on the return value of platform_driver_probe() directly
 - remove excessive printk
 - let command line partition table parsing with mxc_nand name.
   The cmd_line parsing is done via <mtd-id> name that differs
   from mxc_nand by default and looks like "NAND 256MiB 1,8V 8-bit"

Signed-off-by: Vladimir Barinov <vbarinov@embeddedalley.com>
Signed-off-by: Lothar Wassmann <LW@KARO-electronics.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

10 years agoDriver Core: do not oops when driver_unregister() is called for unregistered drivers
Kay Sievers [Thu, 28 May 2009 21:24:07 +0000]
Driver Core: do not oops when driver_unregister() is called for unregistered drivers

We also fix a problem with cleaning up properly when initializing
drivers and devices, so checks like this will work successfully.

Portions of the patch by Linus and Greg and Ingo.

Reported-by: Ozan Çağlayan <ozan@pardus.org.tr>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agosysfs: file.c: use create_singlethread_workqueue()
Andrew Morton [Thu, 7 May 2009 19:36:53 +0000]
sysfs: file.c: use create_singlethread_workqueue()

We don't need a kernel thread per CPU for this application.

Acked-by: Alex Chiang <achiang@hp.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoRevert "USB: Correct Makefile to make isp1760 buildable"
Mike Frysinger [Wed, 20 May 2009 12:49:48 +0000]
Revert "USB: Correct Makefile to make isp1760 buildable"

This reverts commit 26e1287594864169577327fef233befc9739be3b.

A larger patch (f7e7aa585) a few days after this one added the same line
to the Makefile, but in a different place.  While it'd be more correct to
revert that one, it's easier to revert this one because this is a
one-liner.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: linux-usb@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agousb-serial: fix crash when sub-driver updates firmware
Alan Stern [Wed, 27 May 2009 15:25:52 +0000]
usb-serial: fix crash when sub-driver updates firmware

This patch (as1244) fixes a crash in usb-serial that occurs when a
sub-driver returns a positive value from its attach method, indicating
that new firmware was loaded and the device will disconnect and
reconnect.  The usb-serial core then skips the step of registering the
port devices; when the disconnect occurs, the attempt to unregister
the ports fails dramatically.

This problem shows up with Keyspan devices and it might affect others
as well.

When the attach method returns a positive value, the patch sets
num_ports to 0.  This tells usb_serial_disconnect() not to try
unregistering any of the ports; instead they are cleaned up by
destroy_serial().

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoUSB: isp1760: urb_dequeue doesn't always find the urbs
Warren Free [Fri, 8 May 2009 08:27:08 +0000]
USB: isp1760: urb_dequeue doesn't always find the urbs

The option driver (and presumably others) allocates several URBs when it
opens and tries to free them when it closes. The isp1760_urb_dequeue
function gets called, but the packet being dequeued is not necessarily at
the
front of one of the 32 queues. If not, the isp1760_urb_done function doesn't
get called for the URB and the process trying to free it hangs forever on a
wait_queue. This patch does two things. If the URB being dequeued has others
queued behind it, it re-queues them. And it searches the queues looking for
the URB being dequeued rather than just looking at the one at the front of
the queue.

[bigeasy@linutronix] whitespace fixes, reformating

Cc: stable <stable@kernel.org>
Signed-off-by: Warren Free <wfree@ipmn.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoUSB: Yet another Conexant Clone to add to cdc-acm.c
Xiao Kaijian [Thu, 7 May 2009 16:48:23 +0000]
USB: Yet another Conexant Clone to add to cdc-acm.c

This patch adds another quirky Conexant USB Modem Clone to usb cdc-acm.c

Signed-off-by: Xiao Kaijian <xiaokj@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoUSB: atmel_usb_udc: Use kzalloc() to allocate ep structures
Haavard Skinnemoen [Tue, 5 May 2009 00:22:43 +0000]
USB: atmel_usb_udc: Use kzalloc() to allocate ep structures

This ensures that all fields are properly initialized.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoUSB: atmel-usba-udc : fix control out requests.
Martin Fuzzey [Fri, 1 May 2009 15:21:11 +0000]
USB: atmel-usba-udc : fix control out requests.

usbtest #14 was failing with "udc: ep0: TXCOMP: Invalid endpoint state 2, halting endpoint..."
This occured since ep0 is bidirectional and ep->is_in is not valid (must always use ep->state)

Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

10 years agoInput: libps2 - better handle bad scheduler decisions
Dmitry Torokhov [Thu, 28 May 2009 16:51:31 +0000]
Input: libps2 - better handle bad scheduler decisions

Sometimes devices send us their responses in time but due to
unfortunate scheduling decisions the receiving thread does not
get scheduled till much later and we erroneously decide that
device timed out. Work around this problem by checking whether we
received the data we needed instead of checking timeout
condition.

Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

10 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Thu, 28 May 2009 10:02:13 +0000]
Merge branch 'fix/hda' into for-linus

* fix/hda:
  ALSA: hda - Compaq Presario CQ60 patching for Conexant

10 years agoALSA: hda - Compaq Presario CQ60 patching for Conexant
Tony Vroon [Wed, 27 May 2009 20:00:41 +0000]
ALSA: hda - Compaq Presario CQ60 patching for Conexant

A docking mic control is shown by default. The Compaq Presario
CQ60 laptop has no docking connector, so designate it as a
CXT5051_HP model.
This makes the phantom mixer slider disappear.

Signed-off-by: Tony Vroon <tony@linx.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agosvcrdma: dma unmap the correct length for the RPCRDMA header page.
Steve Wise [Thu, 14 May 2009 21:34:28 +0000]
svcrdma: dma unmap the correct length for the RPCRDMA header page.

The svcrdma module was incorrectly unmapping the RPCRDMA header page.
On IBM pserver systems this causes a resource leak that results in
running out of bus address space (10 cthon iterations will reproduce it).
The code was mapping the full page but only unmapping the actual header
length.  The fix is to only map the header length.

I also cleaned up the use of ib_dma_map_page() calls since the unmap
logic always uses ib_dma_unmap_single().  I made these symmetrical.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd: Revert "svcrpc: take advantage of tcp autotuning"
J. Bruce Fields [Wed, 27 May 2009 22:51:06 +0000]
nfsd: Revert "svcrpc: take advantage of tcp autotuning"

This reverts commit 47a14ef1af48c696b214ac168f056ddc79793d0e "svcrpc:
take advantage of tcp autotuning", which uncovered some further problems
in the server rpc code, causing significant performance regressions in
common cases.

We will likely reinstate this patch after releasing 2.6.30 and applying
some work on the underlying fixes to the problem (developed by Trond).

Reported-by: Jeff Moyer <jmoyer@redhat.com>
Cc: Olga Kornievskaia <aglo@citi.umich.edu>
Cc: Jim Rees <rees@umich.edu>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd: fix hung up of nfs client while sync write data to nfs server
Wei Yongjun [Tue, 19 May 2009 04:03:15 +0000]
nfsd: fix hung up of nfs client while sync write data to nfs server

Commit 'Short write in nfsd becomes a full write to the client'
(31dec2538e45e9fff2007ea1f4c6bae9f78db724) broken the sync write.
With the following commands to reproduce:

  $ mount -t nfs -o sync 192.168.0.21:/nfsroot /mnt
  $ cd /mnt
  $ echo aaaa > temp.txt

Then nfs client is hung up.

In SYNC mode the server alaways return the write count 0 to the
client. This is because the value of host_err in nfsd_vfs_write()
will be overwrite in SYNC mode by 'host_err=nfsd_sync(file);',
and then we return host_err(which is now 0) as write count.

This patch fixed the problem.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agoi915: Set object to gtt domain when faulting it back in
Kristian Høgsberg [Wed, 27 May 2009 18:37:28 +0000]
i915: Set object to gtt domain when faulting it back in

When a GEM object is evicted from the GTT we set it to the CPU domain,
as it might get swapped in and out or ever mmapped regularly.  If the
object is mmapped through the GTT it can still get evicted in this way
by other objects requiring GTT space.  When the GTT mapping is touched
again we fault it back into the GTT, but fail to set it back to the
GTT domain.  This means we fail to flush any cached CPU writes to the
pages backing the object which will then happen "eventually", typically
after we write to the page through the uncached GTT mapping.

[anholt: Note that userland does do a set_domain(GTT, GTT) when starting
to access the GTT mapping.  That covers getting the existing mapping of the
object synchronized if it's bound to the GTT.  But set_domain(GTT, GTT)
doesn't do anything if the object is currently unbound.  This fix covers the
transition to being bound for GTT mapping.]

Fixes glyph and other pixmap corruption during swapping.  fd.o bug #21790

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier...
Linus Torvalds [Wed, 27 May 2009 17:58:49 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/vapier/blackfin

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin:
  Blackfin: fix strncmp.o build error
  Blackfin: drop unneeded asm/.gitignore
  Blackfin: ignore generated vmlinux.lds
  MAINTAINERS: drop (subscribers-only) markings on Blackfin lists
  MAINTAINERS: update Blackfin items
  Blackfin: hook up preadv/pwritev syscalls

10 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Wed, 27 May 2009 17:58:23 +0000]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency.
  powerpc: Minor cleanups of kernel virt address space definitions
  powerpc: Move dma-noncoherent.c from arch/powerpc/lib to arch/powerpc/mm
  Revert "powerpc: Rework dma-noncoherent to use generic vmalloc layer"

10 years agoCacheFiles: Fixup renamed filenames in comments in internal.h
David Howells [Wed, 27 May 2009 14:46:55 +0000]
CacheFiles: Fixup renamed filenames in comments in internal.h

Fix up renamed filenames in comments in fs/cachefiles/internal.h.

Originally, the files were all called cf-xxx.c, but they got renamed to
just xxx.c.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoFS-Cache: Fixup renamed filenames in comments in internal.h
David Howells [Wed, 27 May 2009 14:46:50 +0000]
FS-Cache: Fixup renamed filenames in comments in internal.h

Fix up renamed filenames in comments in fs/fscache/internal.h.

Originally, the files were all called fsc-xxx.c, but they got renamed to
just xxx.c.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Wed, 27 May 2009 17:18:26 +0000]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: raid5: change incorrect usage of 'min' macro to 'min_t'

10 years agoMerge branch 'fix/pcm-jiffies-check' into for-linus
Takashi Iwai [Wed, 27 May 2009 14:51:27 +0000]
Merge branch 'fix/pcm-jiffies-check' into for-linus

* fix/pcm-jiffies-check:
  ALSA: Enable PCM hw_ptr_jiffies check only in xrun_debug mode
  ALSA: Fix invalid jiffies check after pause

10 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Wed, 27 May 2009 14:51:15 +0000]
Merge branch 'fix/misc' into for-linus

* fix/misc:
  sound: usb-audio: make the MotU Fastlane work again

10 years agoInput: usb1400_ts - fix access to "device data" in resume function
Manuel Traut [Wed, 27 May 2009 13:20:05 +0000]
Input: usb1400_ts - fix access to "device data" in resume function

platform_data != driver_data

driver data is actually the "correct" place of the struct however it is
not placed there due to the need of the ac97 struct. This is broken since
d9105c2b01 aka "[ARM] 5184/1: Split ucb1400_ts into core and touchscreen"

Signed-off-by: Manuel Traut <manut@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

10 years agomd: raid5: change incorrect usage of 'min' macro to 'min_t'
NeilBrown [Wed, 27 May 2009 11:39:05 +0000]
md: raid5: change incorrect usage of 'min' macro to 'min_t'

A recent patch to raid5.c use min on an int and a sector_t.
This isn't allowed.
So change it to min_t(sector_t,x,y).

Signed-off-by: NeilBrown <neilb@suse.de>

10 years agosound: usb-audio: make the MotU Fastlane work again
Clemens Ladisch [Wed, 27 May 2009 08:49:30 +0000]
sound: usb-audio: make the MotU Fastlane work again

Kernel 2.6.18 broke the MotU Fastlane, which uses duplicate endpoint
numbers in a manner that is not only illegal but also confuses the
kernel's endpoint descriptor caching mechanism.  To work around this, we
have to add a separate usb_set_interface() call to guide the USB core to
the correct descriptors.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-and-tested-by: David Fries <david@fries.net>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoALSA: Enable PCM hw_ptr_jiffies check only in xrun_debug mode
Takashi Iwai [Wed, 27 May 2009 08:53:33 +0000]
ALSA: Enable PCM hw_ptr_jiffies check only in xrun_debug mode

The PCM hw_ptr jiffies check results sometimes in problems when a
hardware doesn't give smooth hw_ptr updates.  So far, au88x0 and some
other drivers appear not working due to this strict check.
However, this check is a nice debug tool, and the capability should be
still kept.

Hence, we disable this check now as default unless the user enables it
by setting the xrun_debug mode to the specific stream via a proc file.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoALSA: Fix invalid jiffies check after pause
Takashi Iwai [Wed, 27 May 2009 08:49:26 +0000]
ALSA: Fix invalid jiffies check after pause

The hw_ptr_jiffies has to be reset properly to avoid the invalid
check of jiffies delta in snd_pcm_update_hw_ptr*() functions.
Especailly this patch fixes the bogus jiffies check after the puase
and resume.

This patch is a modified version of the original patch by Jaroslav.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agopowerpc: Fix up dma_alloc_coherent() on platforms without cache coherency.
Benjamin Herrenschmidt [Wed, 27 May 2009 03:50:33 +0000]
powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency.

The implementation we just revived has issues, such as using a
Kconfig-defined virtual address area in kernel space that nothing
actually carves out (and thus will overlap whatever is there),
or having some dependencies on being self contained in a single
PTE page which adds unnecessary constraints on the kernel virtual
address space.

This fixes it by using more classic PTE accessors and automatically
locating the area for consistent memory, carving an appropriate hole
in the kernel virtual address space, leaving only the size of that
area as a Kconfig option. It also brings some dma-mask related fixes
from the ARM implementation which was almost identical initially but
grew its own fixes.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

10 years agopowerpc: Minor cleanups of kernel virt address space definitions
Benjamin Herrenschmidt [Wed, 27 May 2009 03:44:50 +0000]
powerpc: Minor cleanups of kernel virt address space definitions

Make FIXADDR_TOP a compile time constant and cleanup a
couple of definitions relative to the layout of the kernel
address space on ppc32. We also print out that layout at
boot time for debugging purposes.

This is a pre-requisite for properly fixing non-coherent
DMA allocactions.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

10 years agopowerpc: Move dma-noncoherent.c from arch/powerpc/lib to arch/powerpc/mm
Benjamin Herrenschmidt [Wed, 27 May 2009 03:36:10 +0000]
powerpc: Move dma-noncoherent.c from arch/powerpc/lib to arch/powerpc/mm

(pre-requisite to make the next patches more palatable)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

10 years agoBlackfin: fix strncmp.o build error
Mike Frysinger [Tue, 26 May 2009 09:03:52 +0000]
Blackfin: fix strncmp.o build error

Fix some more fallout of the string changes:

CC arch/blackfin/lib/strncmp.o
In file included from include/linux/bitmap.h:9,
                 from include/linux/nodemask.h:90,
                 from include/linux/mmzone.h:17,
                 from include/linux/gfp.h:5,
                 from include/linux/kmod.h:23,
                 from include/linux/module.h:14,
                 from arch/blackfin/lib/strncmp.c:14:
include/linux/string.h: In function ‘strstarts’:
include/linux/string.h:132: error: implicit declaration of function ‘strncmp’
make[1]: *** [arch/blackfin/lib/strncmp.o] Error 1

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Rusty Russell <rusty@rustcorp.com.au>

10 years agoBlackfin: drop unneeded asm/.gitignore
Mike Frysinger [Wed, 20 May 2009 23:45:39 +0000]
Blackfin: drop unneeded asm/.gitignore

We don't create a include/asm/mach/ symlink anymore, so we don't need the
.gitignore for it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

10 years agoBlackfin: ignore generated vmlinux.lds
Mike Frysinger [Tue, 19 May 2009 14:03:22 +0000]
Blackfin: ignore generated vmlinux.lds

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

10 years agoMAINTAINERS: drop (subscribers-only) markings on Blackfin lists
Mike Frysinger [Mon, 18 May 2009 08:33:07 +0000]
MAINTAINERS: drop (subscribers-only) markings on Blackfin lists

All of the Blackfin lists are transparently moderated for non-subscribers.
i.e. there are no annoying notices and people get whitelisted after first
their posting.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

10 years agoMAINTAINERS: update Blackfin items
Mike Frysinger [Sun, 24 May 2009 06:13:15 +0000]
MAINTAINERS: update Blackfin items

With Bryan Wu having moved on to another job, push the slack onto some
other ADI lackeys.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

10 years agoBlackfin: hook up preadv/pwritev syscalls
Mike Frysinger [Tue, 26 May 2009 08:55:38 +0000]
Blackfin: hook up preadv/pwritev syscalls

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

10 years agoRevert "powerpc: Rework dma-noncoherent to use generic vmalloc layer"
Benjamin Herrenschmidt [Wed, 27 May 2009 03:33:14 +0000]
Revert "powerpc: Rework dma-noncoherent to use generic vmalloc layer"

This reverts commit 33f00dcedb0e22cdb156a23632814fc580fcfcf8.

    While it was a good idea to try to use the mm/vmalloc.c allocator instead
    of our own (in fact, ours is itself a dup on an old variant of the vmalloc
    one), unfortunately, the approach is terminally busted since
    dma_alloc_coherent() can be called at interrupt time or in atomic contexts
    and there's little chances we'll make the code in mm/vmalloc.c cope with\       that :-(

    Until we can get the generic code to forbid that idiocy and fix all
    drivers abusing it, we pretty much have no choice but revert to
    our custom virtual space allocator.

    There's also a problem with SMP safety since freeing such mapping
    would require an IPI which cannot be done at interrupt time.

    However, right now, I don't think we support any platform that is
    both SMP and has non-coherent DMA (don't laugh, I know such things
    do exist !) so we can sort that out later.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

10 years agodrm/i915: Apply a big hammer to 865 GEM object CPU cache flushing.
Eric Anholt [Wed, 27 May 2009 01:46:16 +0000]
drm/i915: Apply a big hammer to 865 GEM object CPU cache flushing.

On the 865, but not the 855, the clflush we do appears to not actually make
it out to the hardware all the time.  An easy way to safely reproduce was
X -retro, which would show that some of the blits involved in drawing the
lovely root weave didn't make it out to the hardware.  Those blits are 32
bytes each, and 1-2 would be missing at various points around the screen.
Other experimentation (doing more clflush, doing more AGP chipset flush,
poking at some more device registers to maybe trigger more flushing) didn't
help.  krh came up with the wbinvd as a way to successfully get all those
blits to appear.

Signed-off-by: Eric Anholt <eric@anholt.net>

10 years agodrm/i915: Fix tiling pitch handling on 8xx.
Eric Anholt [Wed, 27 May 2009 00:44:56 +0000]
drm/i915: Fix tiling pitch handling on 8xx.

The pitch field is an exponent on pre-965, so we were rejecting buffers
on 8xx that we shouldn't have.  915 got lucky in that the largest legal
value happened to match (8KB / 512 = 0x10), but 8xx has a smaller tile width.
Additionally, we programmed that bad value into the register on 8xx, so the
only pitch that would work correctly was 4096 (512-1023 pixels), while others
would probably give bad rendering or hangs.

Signed-off-by: Eric Anholt <eric@anholt.net>

fd.o bug #20473.

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Wed, 27 May 2009 01:03:40 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  tomoyo: add missing call to cap_bprm_set_creds

10 years agotomoyo: add missing call to cap_bprm_set_creds
Herton Ronaldo Krzesinski [Tue, 26 May 2009 03:15:53 +0000]
tomoyo: add missing call to cap_bprm_set_creds

cap_bprm_set_creds() has to be called from security_bprm_set_creds().
TOMOYO forgot to call cap_bprm_set_creds() from tomoyo_bprm_set_creds()
and suid executables were not being working.

Make sure we call cap_bprm_set_creds() with TOMOYO, to set credentials
properly inside tomoyo_bprm_set_creds().

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>

10 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 26 May 2009 22:06:12 +0000]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: avoid back to back on_each_cpu in cpa_flush_array
  x86, relocs: ignore R_386_NONE in kernel relocation entries

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt...
Linus Torvalds [Tue, 26 May 2009 21:48:36 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/anholt/drm-intel

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: Add support for VGA load detection (pre-945).
  drm/i915: Use an I2C algo to do the flip to SDVO DDC bus.
  drm/i915: Determine type before initialising connector
  drm/i915: Return SDVO LVDS VBT mode if no EDID modes are detected.
  drm/i915: Fetch SDVO LVDS mode lines from VBT, then reserve them
  i915: support 8xx desktop cursors
  drm/i915: allocate large pointer arrays with vmalloc

10 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 26 May 2009 21:48:03 +0000]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  oprofile: fix cpu buffer size

10 years agox86: avoid back to back on_each_cpu in cpa_flush_array
Pallipadi, Venkatesh [Tue, 26 May 2009 17:33:35 +0000]
x86: avoid back to back on_each_cpu in cpa_flush_array

Cleanup cpa_flush_array() to avoid back to back on_each_cpu() calls.

[ Impact: optimizes fix 0af48f42df15b97080b450d24219dd95db7b929a ]

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

10 years agoMerge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Tue, 26 May 2009 19:15:35 +0000]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFSv4: Fix the case where NFSv4 renewal fails
  nfs: fix build error in nfsroot with initconst
  XPRTRDMA: fix client rpcrdma FRMR registration on mlx4 devices

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Tue, 26 May 2009 19:14:46 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Add missing check of pin vref 50 and others in Realtek codecs
  ALSA: hda - Add 5stack-no-fp model for STAC927x
  ALSA: hda - Add forced codec-slots for ASUS W5Fm

10 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Tue, 26 May 2009 19:13:33 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] powernow-k8: determine exact CPU frequency for HW Pstates
  [CPUFREQ] powernow-k8 cleanup msg if BIOS does not export ACPI _PSS cpufreq data
  [CPUFREQ] fix timer teardown in ondemand governor
  [CPUFREQ] fix timer teardown in conservative governor
  [CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call
  [CPUFREQ] powernow-k7 build fix when ACPI=n
  [CPUFREQ] add atom family to p4-clockmod

10 years agolguest: fix on Intel when KVM loaded (unhandled trap 13)
Rusty Russell [Tue, 26 May 2009 11:24:41 +0000]
lguest: fix on Intel when KVM loaded (unhandled trap 13)

When KVM is loaded, and hence VT set up, the vmcall instruction in an
lguest guest causes a #GP, not #UD.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agokmod: Release sub_info on cred allocation failure.
Tetsuo Handa [Tue, 26 May 2009 08:11:03 +0000]
kmod: Release sub_info on cred allocation failure.

call_usermodehelper_setup() forgot to kfree(sub_info)
when prepare_usermodehelper_creds() failed.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Tue, 26 May 2009 19:10:19 +0000]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
  r8169: avoid losing MSI interrupts
  tcp: tcp_vegas ssthresh bugfix
  mac8390: fix regression caused during net_device_ops conversion
  gianfar: fix BUG under load after introduction of skb recycling
  wimax/i2400m: usb: fix device reset on autosuspend while not yet idle
  RxRPC: Error handling for rxrpc_alloc_connection()
  ipv4: Fix oops with FIB_TRIE
  pktgen: do not access flows[] beyond its length
  gigaset: beyond ARRAY_SIZE of iwb->data
  IPv6: set RTPROT_KERNEL to initial route
  net: fix rtable leak in net/ipv4/route.c
  net: fix length computation in rt_check_expire()
  wireless: beyond ARRAY_SIZE of intf->crypto_stats
  iwlwifi: update 5000 ucode support to version 2 of API
  cfg80211: fix race between core hint and driver's custom apply
  airo: fix airo_get_encode{,ext} buffer overflow like I mean it...
  ath5k: fix interpolation with equal power levels
  iwlwifi: do not cancel delayed work inside spin_lock_irqsave
  ath5k: fix exp off-by-one when computing OFDM delta slope
  wext: verify buffer size for SIOCSIWENCODEEXT
  ...

10 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Tue, 26 May 2009 19:09:32 +0000]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/mm: Fix broken MMU PID stealing on !SMP

10 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Tue, 26 May 2009 19:09:03 +0000]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: don't use locked_ioctl.
  md: don't update curr_resync_completed without also updating reshape_position.
  md: raid5: avoid sector values going negative when testing reshape progress.
  md: export 'frozen' resync state through sysfs
  md: bitmap: improve bitmap maintenance code.
  md: improve errno return when setting array_size
  md: always update level / chunk_size / layout when writing v1.x metadata.

10 years agoNFSv4: Fix the case where NFSv4 renewal fails
Trond Myklebust [Tue, 26 May 2009 18:51:00 +0000]
NFSv4: Fix the case where NFSv4 renewal fails

If the asynchronous lease renewal fails (usually due to a soft timeout),
then we _must_ schedule state recovery in order to ensure that we don't
lose the lease unnecessarily or, if the lease is already lost, that we
recover the locking state promptly...

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

10 years agonfs: fix build error in nfsroot with initconst
Sam Ravnborg [Tue, 26 May 2009 18:51:00 +0000]
nfs: fix build error in nfsroot with initconst

fix build error with latest kbuild adjustments to initconst.

The commit a447c0932445f92ce6f4c1bd020f62c5097a7842 ("vfs: Use
const for kernel parser table") changed:

    static match_table_t __initdata tokens = {
to
    static match_table_t __initconst tokens = {

But the missing const causes popwerpc to fail with latest
updates to __initconst like this:

fs/nfs/nfsroot.c:400: error: __setup_str_nfs_root_setup causes a section type conflict
fs/nfs/nfsroot.c:400: error: __setup_str_nfs_root_setup causes a section type conflict

The bug is only present with kbuild-next.
Following patch has been build tested.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

10 years agoXPRTRDMA: fix client rpcrdma FRMR registration on mlx4 devices
Vu Pham [Tue, 26 May 2009 18:51:00 +0000]
XPRTRDMA: fix client rpcrdma FRMR registration on mlx4 devices

mlx4/connectX FRMR requires local write enable together with remote
rdma write enable. This fixes NFS/RDMA operation over the ConnectX
Infiniband HCA in the default memreg mode.

Signed-off-by: Vu Pham <vu@mellanox.com>
Signed-off-by: Tom Talpey <tmtalpey@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

10 years agodrm/i915: Add support for VGA load detection (pre-945).
Ma Ling [Tue, 26 May 2009 03:31:00 +0000]
drm/i915: Add support for VGA load detection (pre-945).

Two approaches for VGA detections: hot plug detection for 945G onwards
and load pipe detection for Pre-945G.  Load pipe detection will get one free
pipe, set border color as red and blue, then check CRT status by
swf register.  This is a sync-up with the 2D driver.

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

10 years ago[CPUFREQ] powernow-k8: determine exact CPU frequency for HW Pstates
Andreas Herrmann [Wed, 22 Apr 2009 11:48:33 +0000]
[CPUFREQ] powernow-k8: determine exact CPU frequency for HW Pstates

Slightly modified by trenn@suse.de -> only do this on fam 10h and fam 11h.

Currently powernow-k8 determines CPU frequency from ACPI PSS objects, but
according to AMD family 11h BKDG this frequency is just a rounded value:

  "CoreFreq (MHz) = The CPU COF specified by MSRC001_00[6B:64][CpuFid]
  rounded to the nearest 100 Mhz."

As a consequnce powernow-k8 reports wrong CPU frequency on some systems,
e.g. on Turion X2 Ultra:

  powernow-k8: Found 1 AMD Turion(tm)X2 Ultra DualCore Mobile ZM-82
               processors (2 cpu cores) (version 2.20.00)
  powernow-k8:    0 : pstate 0 (2200 MHz)
  powernow-k8:    1 : pstate 1 (1100 MHz)
  powernow-k8:    2 : pstate 2 (600 MHz)

But this is wrong as frequency for Pstate2 is 550 MHz. x86info reports it
correctly:

  #x86info -a |grep Pstate
  ...
  Pstate-0: fid=e, did=0, vid=24 (2200MHz)
  Pstate-1: fid=e, did=1, vid=30 (1100MHz)
  Pstate-2: fid=e, did=2, vid=3c (550MHz) (current)

Solution is to determine the frequency directly from Pstate MSRs instead
of using rounded values from ACPI table.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years ago[CPUFREQ] powernow-k8 cleanup msg if BIOS does not export ACPI _PSS cpufreq data
Thomas Renninger [Wed, 22 Apr 2009 11:48:32 +0000]
[CPUFREQ] powernow-k8 cleanup msg if BIOS does not export ACPI _PSS cpufreq data

- Make the message shorter and easier to grep for
- Use printk_once instead of WARN_ONCE (functionality of these was mixed)

Signed-off-by: Thomas Renninger <trenn@suse.de>
Cc: Langsdorf, Mark <mark.langsdorf@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years ago[CPUFREQ] fix timer teardown in ondemand governor
Mathieu Desnoyers [Sun, 17 May 2009 14:30:45 +0000]
[CPUFREQ] fix timer teardown in ondemand governor

* Rafael J. Wysocki (rjw@sisk.pl) wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.28 and 2.6.29.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.28 and 2.6.29.  Please verify if it still should
> be listed and let me know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13186
> Subject : cpufreq timer teardown problem
> Submitter : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Date : 2009-04-23 14:00 (24 days old)
> References : http://marc.info/?l=linux-kernel&m=124049523515036&w=4
> Handled-By : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Patch : http://patchwork.kernel.org/patch/19754/
>    http://patchwork.kernel.org/patch/19753/
>

(updated changelog)

cpufreq fix timer teardown in ondemand governor

The problem is that dbs_timer_exit() uses cancel_delayed_work() when it should
use cancel_delayed_work_sync(). cancel_delayed_work() does not wait for the
workqueue handler to exit.

The ondemand governor does not seem to be affected because the
"if (!dbs_info->enable)" check at the beginning of the workqueue handler returns
immediately without rescheduling the work. The conservative governor in
2.6.30-rc has the same check as the ondemand governor, which makes things
usually run smoothly. However, if the governor is quickly stopped and then
started, this could lead to the following race :

dbs_enable could be reenabled and multiple do_dbs_timer handlers would run.
This is why a synchronized teardown is required.

The following patch applies to, at least, 2.6.28.x, 2.6.29.1, 2.6.30-rc2.

Depends on patch
cpufreq: remove rwsem lock from CPUFREQ_GOV_STOP call

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: gregkh@suse.de
CC: stable@kernel.org
CC: cpufreq@vger.kernel.org
CC: Ingo Molnar <mingo@elte.hu>
CC: rjw@sisk.pl
CC: Ben Slusky <sluskyb@paranoiacs.org>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years ago[CPUFREQ] fix timer teardown in conservative governor
Mathieu Desnoyers [Sun, 17 May 2009 14:29:33 +0000]
[CPUFREQ] fix timer teardown in conservative governor

* Rafael J. Wysocki (rjw@sisk.pl) wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.28 and 2.6.29.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.28 and 2.6.29.  Please verify if it still should
> be listed and let me know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13186
> Subject : cpufreq timer teardown problem
> Submitter : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Date : 2009-04-23 14:00 (24 days old)
> References : http://marc.info/?l=linux-kernel&m=124049523515036&w=4
> Handled-By : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Patch : http://patchwork.kernel.org/patch/19754/
>    http://patchwork.kernel.org/patch/19753/
>

(re-send with updated changelog)

cpufreq fix timer teardown in conservative governor

The problem is that dbs_timer_exit() uses cancel_delayed_work() when it should
use cancel_delayed_work_sync(). cancel_delayed_work() does not wait for the
workqueue handler to exit.

The ondemand governor does not seem to be affected because the
"if (!dbs_info->enable)" check at the beginning of the workqueue handler returns
immediately without rescheduling the work. The conservative governor in
2.6.30-rc has the same check as the ondemand governor, which makes things
usually run smoothly. However, if the governor is quickly stopped and then
started, this could lead to the following race :

dbs_enable could be reenabled and multiple do_dbs_timer handlers would run.
This is why a synchronized teardown is required.

Depends on patch
cpufreq: remove rwsem lock from CPUFREQ_GOV_STOP call

The following patch applies to 2.6.30-rc2. Stable kernels have a similar
issue which should also be fixed, but the code changed between 2.6.29
and 2.6.30, so this patch only applies to 2.6.30-rc.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: gregkh@suse.de
CC: stable@kernel.org
CC: cpufreq@vger.kernel.org
CC: Ingo Molnar <mingo@elte.hu>
CC: rjw@sisk.pl
CC: Ben Slusky <sluskyb@paranoiacs.org>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years ago[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call
Mathieu Desnoyers [Sun, 17 May 2009 14:23:52 +0000]
[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call

* Rafael J. Wysocki (rjw@sisk.pl) wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.28 and 2.6.29.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.28 and 2.6.29.  Please verify if it still should
> be listed and let me know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13186
> Subject : cpufreq timer teardown problem
> Submitter : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Date : 2009-04-23 14:00 (24 days old)
> References : http://marc.info/?l=linux-kernel&m=124049523515036&w=4
> Handled-By : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Patch : http://patchwork.kernel.org/patch/19754/
>    http://patchwork.kernel.org/patch/19753/

The patches linked above depend on the following patch to remove
circular locking dependency :

cpufreq: remove rwsem lock from CPUFREQ_GOV_STOP call

(the following issue was faced when using cancel_delayed_work_sync() in the
timer teardown (which fixes a race).

* KOSAKI Motohiro (kosaki.motohiro@jp.fujitsu.com) wrote:
> Hi
>
> my box output following warnings.
> it seems regression by commit 7ccc7608b836e58fbacf65ee4f8eefa288e86fac.
>
> A: work -> do_dbs_timer()  -> cpu_policy_rwsem
> B: store() -> cpu_policy_rwsem -> cpufreq_governor_dbs() -> work
>
>

Hrm, I think it must be due to my attempt to fix the timer teardown race
in ondemand governor mixed with new locking behavior in 2.6.30-rc.

The rwlock seems to be taken around the whole call to
cpufreq_governor_dbs(), when it should be only taken around accesses to
the locked data, and especially *not* around the call to
dbs_timer_exit().

Reverting my fix attempt would put the teardown race back in place
(replacing the cancel_delayed_work_sync by cancel_delayed_work).
Instead, a proper fix would imply modifying this critical section :

cpufreq.c: __cpufreq_remove_dev()
...
        if (cpufreq_driver->target)
                __cpufreq_governor(data, CPUFREQ_GOV_STOP);

        unlock_policy_rwsem_write(cpu);

To make sure the __cpufreq_governor() callback is not called with rwsem
held. This would allow execution of cancel_delayed_work_sync() without
being nested within the rwsem.

Applies on top of the 2.6.30-rc5 tree.

Required to remove circular dep in teardown of both conservative and
ondemande governors so they can use cancel_delayed_work_sync().
CPUFREQ_GOV_STOP does not modify the policy, therefore this locking seemed
unneeded.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Greg KH <greg@kroah.com>
CC: Ingo Molnar <mingo@elte.hu>
CC: "Rafael J. Wysocki" <rjw@sisk.pl>
CC: Ben Slusky <sluskyb@paranoiacs.org>
CC: Chris Wright <chrisw@sous-sol.org>
CC: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years ago[CPUFREQ] powernow-k7 build fix when ACPI=n
Dave Jones [Thu, 23 Apr 2009 17:36:12 +0000]
[CPUFREQ] powernow-k7 build fix when ACPI=n

arch/x86/kernel/cpu/cpufreq/powernow-k7.c:172: warning: 'invalidate_entry' defined but not used

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years ago[CPUFREQ] add atom family to p4-clockmod
Jarod Wilson [Fri, 6 Mar 2009 20:24:57 +0000]
[CPUFREQ] add atom family to p4-clockmod

Some atom procs don't do freq scaling (such as the atom 330 on my own
littlefalls2 board). By adding the atom family here, we at least get
the benefit of passive cooling in a thermal emergency. Not sure how
to see that its actually helping any, but the driver does bind and
claim its functioning on my atom 330.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>

10 years agoMerge branch 'linux-2.6.30.y' of git://git.kernel.org/pub/scm/linux/kernel/git/inaky...
David S. Miller [Tue, 26 May 2009 05:56:11 +0000]
Merge branch 'linux-2.6.30.y' of git://git./linux/kernel/git/inaky/wimax

10 years agor8169: avoid losing MSI interrupts
David Dillow [Fri, 22 May 2009 15:29:34 +0000]
r8169: avoid losing MSI interrupts

The 8169 chip only generates MSI interrupts when all enabled event
sources are quiescent and one or more sources transition to active. If
not all of the active events are acknowledged, or a new event becomes
active while the existing ones are cleared in the handler, we will not
see a new interrupt.

The current interrupt handler masks off the Rx and Tx events once the
NAPI handler has been scheduled, which opens a race window in which we
can get another Rx or Tx event and never ACK'ing it, stopping all
activity until the link is reset (ifconfig down/up). Fix this by always
ACK'ing all event sources, and loop in the handler until we have all
sources quiescent.

Signed-off-by: David Dillow <dave@thedillows.org>
Tested-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agox86, relocs: ignore R_386_NONE in kernel relocation entries
Tejun Heo [Tue, 26 May 2009 05:42:40 +0000]
x86, relocs: ignore R_386_NONE in kernel relocation entries

For relocatable 32bit kernels, boot/compressed/relocs.c processes
relocation entries in the kernel image and appends it to the kernel
image such that boot/compressed/head_32.S can relocate the kernel.
The kernel image is one statically linked object and only uses two
relocation types - R_386_PC32 and R_386_32, of the two only the latter
needs massaging during kernel relocation and thus handled by relocs.
R_386_PC32 is ignored and all other relocation types are considered
error.

When the target of a relocation resides in a discarded section,
binutils doesn't throw away the relocation record but nullifies it by
changing it to R_386_NONE, which unfortunately makes relocs fail.

The problem was triggered by yet out-of-tree x86 stack unwind patches
but given the binutils behavior, ignoring R_386_NONE is the right
thing to do.

The problem has been tracked down to binutils behavior by Jan Beulich.

[ Impact: fix build with certain binutils by ignoring R_386_NONE ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <4A1B8150.40702@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

10 years agotcp: tcp_vegas ssthresh bugfix
Doug Leith [Tue, 26 May 2009 05:44:59 +0000]
tcp: tcp_vegas ssthresh bugfix

This patch fixes ssthresh accounting issues in tcp_vegas when cwnd decreases

Signed-off-by: Doug Leith <doug.leith@nuim.ie>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agomac8390: fix regression caused during net_device_ops conversion
Finn Thain [Tue, 26 May 2009 05:43:49 +0000]
mac8390: fix regression caused during net_device_ops conversion

Changeset ca17584bf2ad1b1e37a5c0e4386728cc5fc9dabc ("mac8390: update
to net_device_ops") broke mac8390 by adding 8390.o to the link. That
meant that lib8390.c was included twice, once in mac8390.c and once in
8390.c, subject to different macros. This patch reverts that by
avoiding the wrappers in 8390.c. They seem to be of no value since
COMPAT_NET_DEV_OPS is going away soon.

Tested with a Kinetics EtherPort card.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 years agopowerpc/mm: Fix broken MMU PID stealing on !SMP
Hideo Saito [Sun, 24 May 2009 15:33:34 +0000]
powerpc/mm: Fix broken MMU PID stealing on !SMP

The recent rework of the MMU PID handling for non-hash CPUs has a
subtle bug in the !SMP "optimized" variant of the PID stealing
function.  It clears the PID in the mm context before it calls
local_flush_tlb_mm(). However, the later will not flush anything
if the PID in the context is clear...

Signed-off-by: Hideo Saito <hsaito.ppc@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

10 years agomd: don't use locked_ioctl.
NeilBrown [Tue, 26 May 2009 02:57:36 +0000]
md: don't use locked_ioctl.

md has no need for the BKL - it does its own locking.
So md_ioctl doesn't need to be a locked_ioctl.

Signed-off-by: NeilBrown <neilb@suse.de>