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14 years ago[S390] cio: allow enable_facility from outside init functions
Sebastian Ott [Thu, 22 Apr 2010 15:17:03 +0000 (17:17 +0200)]
[S390] cio: allow enable_facility from outside init functions

Prepare chsc_enable_facility to be used from outside init functions.
Use static memory for the chsc call and protect its access by a
spinlock (although there is no concurrent usage).

Cc: <stable@kernel.org>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years ago[S390] dasd: fix endless loop in erp
Stefan Haberland [Thu, 22 Apr 2010 15:17:02 +0000 (17:17 +0200)]
[S390] dasd: fix endless loop in erp

If not enough memory is available to build a new erp request it ended
up in an endless loop trying to build erp requests. Fixed the loop to
proceed the next request instead.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Linus Torvalds [Wed, 21 Apr 2010 19:33:12 +0000 (12:33 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: allow 4 coldfire serial ports
  m68knommu: fix coldfire tcdrain
  m68knommu: remove a duplicate vector setting line for 68360
  Fix m68k-uclinux's rt_sigreturn trampoline
  m68knommu: correct the CC flags for Coldfire M5272 targets
  uclinux: error message when FLAT reloc symbol is invalid, v2

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
Linus Torvalds [Wed, 21 Apr 2010 19:31:52 +0000 (12:31 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  mc13783-regulator: fix a memory leak in mc13783_regulator_remove
  regulator: Let drivers know when they use the stub API

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs
Linus Torvalds [Wed, 21 Apr 2010 19:31:12 +0000 (12:31 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs

* git://git.kernel.org/pub/scm/linux/kernel/git/joern/logfs:
  [LogFS] Split large truncated into smaller chunks
  [LogFS] Set s_bdi
  [LogFS] Prevent mempool_destroy NULL pointer dereference
  [LogFS] Move assertion
  [LogFS] Plug 8 byte information leak
  [LogFS] Prevent memory corruption on large deletes
  [LogFS] Remove unused method

Fix trivial conflict with added header includes in fs/logfs/super.c

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy...
Linus Torvalds [Wed, 21 Apr 2010 19:30:07 +0000 (12:30 -0700)]
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: add jfs specific ->setattr call
  jfs: fix diAllocExt error in resizing filesystem
  jfs_dmap.[ch]: trivial typo fix: s/heigth/height/g

14 years agoMerge branch 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Wed, 21 Apr 2010 19:29:46 +0000 (12:29 -0700)]
Merge branch 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm

* 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Fix TSS size check for 16-bit tasks
  KVM: Add missing srcu_read_lock() for kvm_mmu_notifier_release()
  KVM: Increase NR_IOBUS_DEVS limit to 200
  KVM: fix the handling of dirty bitmaps to avoid overflows
  KVM: MMU: fix kvm_mmu_zap_page() and its calling path
  KVM: VMX: Save/restore rflags.vm correctly in real mode
  KVM: allow bit 10 to be cleared in MSR_IA32_MC4_CTL
  KVM: Don't spam kernel log when injecting exceptions due to bad cr writes
  KVM: SVM: Fix memory leaks that happen when svm_create_vcpu() fails
  KVM: take srcu lock before call to complete_pio()

14 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Wed, 21 Apr 2010 19:28:44 +0000 (12:28 -0700)]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md/raid5: allow for more than 2^31 chunks.

14 years agoAFS: Don't pass error value to page_cache_release() in error handling
David Howells [Wed, 21 Apr 2010 11:01:23 +0000 (12:01 +0100)]
AFS: Don't pass error value to page_cache_release() in error handling

In the error handling in afs_mntpt_do_automount(), we pass an error
pointer to page_cache_release() if read_mapping_page() failed.  Instead,
we should extend the gotos around the error handling we don't need.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoKVM: x86: Fix TSS size check for 16-bit tasks
Jan Kiszka [Wed, 14 Apr 2010 14:57:11 +0000 (16:57 +0200)]
KVM: x86: Fix TSS size check for 16-bit tasks

A 16-bit TSS is only 44 bytes long. So make sure to test for the correct
size on task switch.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
14 years agoKVM: Add missing srcu_read_lock() for kvm_mmu_notifier_release()
Lai Jiangshan [Tue, 20 Apr 2010 06:29:29 +0000 (14:29 +0800)]
KVM: Add missing srcu_read_lock() for kvm_mmu_notifier_release()

I got this dmesg due to srcu_read_lock() is missing in
kvm_mmu_notifier_release().

===================================================
[ INFO: suspicious rcu_dereference_check() usage. ]
---------------------------------------------------
arch/x86/kvm/x86.h:72 invoked rcu_dereference_check() without protection!

other info that might help us debug this:

rcu_scheduler_active = 1, debug_locks = 0
2 locks held by qemu-system-x86/3100:
 #0:  (rcu_read_lock){.+.+..}, at: [<ffffffff810d73dc>] __mmu_notifier_release+0x38/0xdf
 #1:  (&(&kvm->mmu_lock)->rlock){+.+...}, at: [<ffffffffa0130a6a>] kvm_mmu_zap_all+0x21/0x5e [kvm]

stack backtrace:
Pid: 3100, comm: qemu-system-x86 Not tainted 2.6.34-rc3-22949-gbc8a97a-dirty #2
Call Trace:
 [<ffffffff8106afd9>] lockdep_rcu_dereference+0xaa/0xb3
 [<ffffffffa0123a89>] unalias_gfn+0x56/0xab [kvm]
 [<ffffffffa0119600>] gfn_to_memslot+0x16/0x25 [kvm]
 [<ffffffffa012ffca>] gfn_to_rmap+0x17/0x6e [kvm]
 [<ffffffffa01300c1>] rmap_remove+0xa0/0x19d [kvm]
 [<ffffffffa0130649>] kvm_mmu_zap_page+0x109/0x34d [kvm]
 [<ffffffffa0130a7e>] kvm_mmu_zap_all+0x35/0x5e [kvm]
 [<ffffffffa0122870>] kvm_arch_flush_shadow+0x16/0x22 [kvm]
 [<ffffffffa01189e0>] kvm_mmu_notifier_release+0x15/0x17 [kvm]
 [<ffffffff810d742c>] __mmu_notifier_release+0x88/0xdf
 [<ffffffff810d73dc>] ? __mmu_notifier_release+0x38/0xdf
 [<ffffffff81040848>] ? exit_mm+0xe0/0x115
 [<ffffffff810c2cb0>] exit_mmap+0x2c/0x17e
 [<ffffffff8103c472>] mmput+0x2d/0xd4
 [<ffffffff81040870>] exit_mm+0x108/0x115
[...]

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
14 years agom68knommu: allow 4 coldfire serial ports
Philippe De Muyter [Thu, 18 Mar 2010 10:37:13 +0000 (11:37 +0100)]
m68knommu: allow 4 coldfire serial ports

Fix driver/serial/mcf.c for 4-ports coldfire's (e.g. MCF5484).

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
14 years agom68knommu: fix coldfire tcdrain
Philippe De Muyter [Fri, 2 Apr 2010 15:56:08 +0000 (17:56 +0200)]
m68knommu: fix coldfire tcdrain

Fix tcdrain on coldfire uarts.
Currently with coldfire uarts tcdrain returns without waiting for txempty,
because (tx)fifosize is 0.  Fix that and call uart_update_timeout when
setting the baud rate, otherwise tcdrain will wait for an half our :)
Also constify mcf_uart_ops.

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
14 years agom68knommu: remove a duplicate vector setting line for 68360
Greg Ungerer [Fri, 19 Feb 2010 01:27:37 +0000 (11:27 +1000)]
m68knommu: remove a duplicate vector setting line for 68360

Remove a duplicate vector setting line for the 68360 interrupt
setup. Pointed out by Roel Kluin <roel.kluin@gmail.com>

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
14 years agoFix m68k-uclinux's rt_sigreturn trampoline
Maxim Kuvyrkov [Tue, 22 Sep 2009 21:25:44 +0000 (01:25 +0400)]
Fix m68k-uclinux's rt_sigreturn trampoline

Signed-off-by: Maxim Kuvyrkov <maxim@codesourcery.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
14 years agom68knommu: correct the CC flags for Coldfire M5272 targets
Philip Nye [Tue, 12 Jan 2010 00:18:03 +0000 (10:18 +1000)]
m68knommu: correct the CC flags for Coldfire M5272 targets

Signed-off-by: Philip Nye <philipn@engarts.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
14 years agouclinux: error message when FLAT reloc symbol is invalid, v2
Jun Sun [Fri, 1 Jan 2010 01:28:52 +0000 (17:28 -0800)]
uclinux: error message when FLAT reloc symbol is invalid, v2

This patch fixes a cosmetic error in printk. Text segment and data/bss
segment are allocated from two different areas. It is not meaningful to
give the diff between them in the error reporting messages.

Signed-off-by: Jun Sun <jsun@junsun.net>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
14 years ago[LogFS] Split large truncated into smaller chunks
Joern Engel [Tue, 20 Apr 2010 19:44:10 +0000 (21:44 +0200)]
[LogFS] Split large truncated into smaller chunks

Truncate would do an almost limitless amount of work without invoking
the garbage collector in between.  Split it up into more manageable,
though still large, chunks.

Signed-off-by: Joern Engel <joern@logfs.org>
14 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Tue, 20 Apr 2010 16:39:40 +0000 (09:39 -0700)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  quota: Convert __DQUOT_PARANOIA symbol to standard config option

14 years agoquota: Convert __DQUOT_PARANOIA symbol to standard config option
Jan Kara [Mon, 19 Apr 2010 14:47:20 +0000 (16:47 +0200)]
quota: Convert __DQUOT_PARANOIA symbol to standard config option

Make __DQUOT_PARANOIA define from the old days a standard config option
and turn it off by default.

This gets rid of a quota warning about writes before quota is turned on
for systems with ext4 root filesystem. Currently there's no way to legally
solve this because /etc/mtab has to be written before quota is turned on
on most systems.

Signed-off-by: Jan Kara <jack@suse.cz>
14 years agoMerge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
Linus Torvalds [Tue, 20 Apr 2010 16:21:19 +0000 (09:21 -0700)]
Merge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6

* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
  pcmcia: fix error handling in cm4000_cs.c
  drivers/pcmcia: Add missing local_irq_restore
  serial_cs: MD55x support (PCMCIA GPRS/EDGE modem) (kernel 2.6.33)
  pcmcia: avoid late calls to pccard_validate_cis
  pcmcia: fix ioport size calculation in rsrc_nonstatic
  pcmcia: re-start on MFC override
  pcmcia: fix io_probe due to parent (PCI) resources
  pcmcia: use previously assigned IRQ for all card functions

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Tue, 20 Apr 2010 16:20:55 +0000 (09:20 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Fix hardirq tracing in trap return path.
  sparc64: Use correct pt_regs in decode_access_size() error paths.
  sparc64: Fix PREEMPT_ACTIVE value.
  sparc64: Run NMIs on the hardirq stack.
  sparc64: Allocate sufficient stack space in ftrace stubs.
  sparc: Fix forgotten kmemleak headers inclusion

14 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 20 Apr 2010 16:20:23 +0000 (09:20 -0700)]
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Fix unsafe frame rewinding with hot regs fetching

14 years agoMerge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Tue, 20 Apr 2010 16:20:11 +0000 (09:20 -0700)]
Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm: delay vblank cleanup until after driver unload

14 years agox86: correctly wire up the newuname system call
Christoph Hellwig [Tue, 20 Apr 2010 03:31:02 +0000 (05:31 +0200)]
x86: correctly wire up the newuname system call

Before commit e28cbf22933d0c0ccaf3c4c27a1a263b41f73859 ("improve
sys_newuname() for compat architectures") 64-bit x86 had a private
implementation of sys_uname which was just called sys_uname, which other
architectures used for the old uname.

Due to some merge issues with the uname refactoring patches we ended up
calling the old uname version for both the old and new system call
slots, which lead to the domainname filed never be set which caused
failures with libnss_nis.

Reported-and-tested-by: Andy Isaacson <adi@hexapodia.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoKVM: Increase NR_IOBUS_DEVS limit to 200
Sridhar Samudrala [Tue, 30 Mar 2010 23:48:25 +0000 (16:48 -0700)]
KVM: Increase NR_IOBUS_DEVS limit to 200

This patch increases the current hardcoded limit of NR_IOBUS_DEVS
from 6 to 200. We are hitting this limit when creating a guest with more
than 1 virtio-net device using vhost-net backend. Each virtio-net
device requires 2 such devices to service notifications from rx/tx queues.

Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
14 years agoKVM: fix the handling of dirty bitmaps to avoid overflows
Takuya Yoshikawa [Mon, 12 Apr 2010 10:35:35 +0000 (19:35 +0900)]
KVM: fix the handling of dirty bitmaps to avoid overflows

Int is not long enough to store the size of a dirty bitmap.

This patch fixes this problem with the introduction of a wrapper
function to calculate the sizes of dirty bitmaps.

Note: in mark_page_dirty(), we have to consider the fact that
  __set_bit() takes the offset as int, not long.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
14 years agoKVM: MMU: fix kvm_mmu_zap_page() and its calling path
Xiao Guangrong [Fri, 16 Apr 2010 08:34:42 +0000 (16:34 +0800)]
KVM: MMU: fix kvm_mmu_zap_page() and its calling path

This patch fix:

- calculate zapped page number properly in mmu_zap_unsync_children()
- calculate freeed page number properly kvm_mmu_change_mmu_pages()
- if zapped children page it shoud restart hlist walking

KVM-Stable-Tag.
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
14 years agoKVM: VMX: Save/restore rflags.vm correctly in real mode
Avi Kivity [Thu, 8 Apr 2010 15:19:35 +0000 (18:19 +0300)]
KVM: VMX: Save/restore rflags.vm correctly in real mode

Currently we set eflags.vm unconditionally when entering real mode emulation
through virtual-8086 mode, and clear it unconditionally when we enter protected
mode.  The means that the following sequence

  KVM_SET_REGS  (rflags.vm=1)
  KVM_SET_SREGS (cr0.pe=1)

Ends up with rflags.vm clear due to KVM_SET_SREGS triggering enter_pmode().

Fix by shadowing rflags.vm (and rflags.iopl) correctly while in real mode:
reads and writes to those bits access a shadow register instead of the actual
register.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
14 years agoKVM: allow bit 10 to be cleared in MSR_IA32_MC4_CTL
Andre Przywara [Wed, 24 Mar 2010 16:46:42 +0000 (17:46 +0100)]
KVM: allow bit 10 to be cleared in MSR_IA32_MC4_CTL

There is a quirk for AMD K8 CPUs in many Linux kernels (see
arch/x86/kernel/cpu/mcheck/mce.c:__mcheck_cpu_apply_quirks()) that
clears bit 10 in that MCE related MSR. KVM can only cope with all
zeros or all ones, so it will inject a #GP into the guest, which
will let it panic.
So lets add a quirk to the quirk and ignore this single cleared bit.
This fixes -cpu kvm64 on all machines and -cpu host on K8 machines
with some guest Linux kernels.

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
14 years agoKVM: Don't spam kernel log when injecting exceptions due to bad cr writes
Avi Kivity [Thu, 11 Mar 2010 10:20:03 +0000 (12:20 +0200)]
KVM: Don't spam kernel log when injecting exceptions due to bad cr writes

These are guest-triggerable.

Signed-off-by: Avi Kivity <avi@redhat.com>
14 years agoKVM: SVM: Fix memory leaks that happen when svm_create_vcpu() fails
Takuya Yoshikawa [Tue, 9 Mar 2010 05:55:19 +0000 (14:55 +0900)]
KVM: SVM: Fix memory leaks that happen when svm_create_vcpu() fails

svm_create_vcpu() does not free the pages allocated during the creation
when it fails to complete the allocations. This patch fixes it.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
14 years agoKVM: take srcu lock before call to complete_pio()
Gleb Natapov [Tue, 9 Mar 2010 10:01:10 +0000 (12:01 +0200)]
KVM: take srcu lock before call to complete_pio()

complete_pio() may use slot table which is protected by srcu.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Avi Kivity <avi@redhat.com>
14 years agosparc64: Fix hardirq tracing in trap return path.
David S. Miller [Tue, 20 Apr 2010 07:48:37 +0000 (00:48 -0700)]
sparc64: Fix hardirq tracing in trap return path.

We can overflow the hardirq stack if we set the %pil here
so early, just let the normal control flow do it.

This is fine as we are allowed to do the actual IRQ enable
at any point after we call trace_hardirqs_on.

Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agodrm: delay vblank cleanup until after driver unload
Jesse Barnes [Fri, 26 Mar 2010 18:07:16 +0000 (11:07 -0700)]
drm: delay vblank cleanup until after driver unload

Drivers may use vblank calls now (e.g. drm_vblank_off) in their unload
paths, so don't clean up the vblank related structures until after
driver unload.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agomd/raid5: allow for more than 2^31 chunks.
NeilBrown [Tue, 20 Apr 2010 04:13:34 +0000 (14:13 +1000)]
md/raid5: allow for more than 2^31 chunks.

With many large drives and small chunk sizes it is possible
to create a RAID5 with more than 2^31 chunks.  Make sure this
works.

Reported-by: Brett King <king.br@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Cc: stable@kernel.org
14 years agoLinux 2.6.34-rc5
Linus Torvalds [Mon, 19 Apr 2010 23:29:56 +0000 (16:29 -0700)]
Linux 2.6.34-rc5

14 years agormap: add exclusively owned pages to the newest anon_vma
Rik van Riel [Wed, 14 Apr 2010 21:59:28 +0000 (17:59 -0400)]
rmap: add exclusively owned pages to the newest anon_vma

The recent anon_vma fixes cause many anonymous pages to end up
in the parent process anon_vma, even when the page is exclusively
owned by the current process.

Adding exclusively owned anonymous pages to the top anon_vma
reduces rmap scanning overhead, especially in workloads with
forking servers.

This patch adds a parameter to __page_set_anon_rmap that can
be used to indicate whether or not the added page is exclusively
owned by the current process.

Pages added through page_add_new_anon_rmap are exclusively
owned by the current process, and can be added to the top
anon_vma.

Pages added through page_add_anon_rmap can be either shared
or exclusively owned, so we do the conservative thing and
add it to the oldest anon_vma.

A next step would be to add the exclusive parameter to
page_add_anon_rmap, to be used from functions where we do
know for sure whether a page is exclusively owned.

Signed-off-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
Lightly-tested-by: Borislav Petkov <bp@alien8.de>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
[ Edited to look nicer  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs...
Linus Torvalds [Mon, 19 Apr 2010 21:20:32 +0000 (14:20 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
  eCryptfs: Turn lower lookup error messages into debug messages
  eCryptfs: Copy lower directory inode times and size on link
  ecryptfs: fix use with tmpfs by removing d_drop from ecryptfs_destroy_inode
  ecryptfs: fix error code for missing xattrs in lower fs
  eCryptfs: Decrypt symlink target for stat size
  eCryptfs: Strip metadata in xattr flag in encrypted view
  eCryptfs: Clear buffer before reading in metadata xattr
  eCryptfs: Rename ecryptfs_crypt_stat.num_header_bytes_at_front
  eCryptfs: Fix metadata in xattr feature regression

14 years agosparc64: Use correct pt_regs in decode_access_size() error paths.
David S. Miller [Mon, 19 Apr 2010 20:46:48 +0000 (13:46 -0700)]
sparc64: Use correct pt_regs in decode_access_size() error paths.

Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoeCryptfs: Turn lower lookup error messages into debug messages
Tyler Hicks [Thu, 25 Mar 2010 16:16:56 +0000 (11:16 -0500)]
eCryptfs: Turn lower lookup error messages into debug messages

Vaugue warnings about ENAMETOOLONG errors when looking up an encrypted
file name have caused many users to become concerned about their data.
Since this is a rather harmless condition, I'm moving this warning to
only be printed when the ecryptfs_verbosity module param is 1.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoeCryptfs: Copy lower directory inode times and size on link
Tyler Hicks [Tue, 23 Mar 2010 23:09:02 +0000 (18:09 -0500)]
eCryptfs: Copy lower directory inode times and size on link

The timestamps and size of a lower inode involved in a link() call was
being copied to the upper parent inode.  Instead, we should be
copying lower parent inode's timestamps and size to the upper parent
inode.  I discovered this bug using the POSIX test suite at Tuxera.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoecryptfs: fix use with tmpfs by removing d_drop from ecryptfs_destroy_inode
Jeff Mahoney [Fri, 19 Mar 2010 19:35:46 +0000 (15:35 -0400)]
ecryptfs: fix use with tmpfs by removing d_drop from ecryptfs_destroy_inode

Since tmpfs has no persistent storage, it pins all its dentries in memory
so they have d_count=1 when other file systems would have d_count=0.
->lookup is only used to create new dentries. If the caller doesn't
instantiate it, it's freed immediately at dput(). ->readdir reads
directly from the dcache and depends on the dentries being hashed.

When an ecryptfs mount is mounted, it associates the lower file and dentry
with the ecryptfs files as they're accessed. When it's umounted and
destroys all the in-memory ecryptfs inodes, it fput's the lower_files and
d_drop's the lower_dentries. Commit 4981e081 added this and a d_delete in
2008 and several months later commit caeeeecf removed the d_delete. I
believe the d_drop() needs to be removed as well.

The d_drop effectively hides any file that has been accessed via ecryptfs
from the underlying tmpfs since it depends on it being hashed for it to
be accessible. I've removed the d_drop on my development node and see no
ill effects with basic testing on both tmpfs and persistent storage.

As a side effect, after ecryptfs d_drops the dentries on tmpfs, tmpfs
BUGs on umount. This is due to the dentries being unhashed.
tmpfs->kill_sb is kill_litter_super which calls d_genocide to drop
the reference pinning the dentry. It skips unhashed and negative dentries,
but shrink_dcache_for_umount_subtree doesn't. Since those dentries
still have an elevated d_count, we get a BUG().

This patch removes the d_drop call and fixes both issues.

This issue was reported at:
https://bugzilla.novell.com/show_bug.cgi?id=567887

Reported-by: Árpád Bíró <biroa@demasz.hu>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: Dustin Kirkland <kirkland@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoecryptfs: fix error code for missing xattrs in lower fs
Christian Pulvermacher [Tue, 23 Mar 2010 16:51:38 +0000 (11:51 -0500)]
ecryptfs: fix error code for missing xattrs in lower fs

If the lower file system driver has extended attributes disabled,
ecryptfs' own access functions return -ENOSYS instead of -EOPNOTSUPP.
This breaks execution of programs in the ecryptfs mount, since the
kernel expects the latter error when checking for security
capabilities in xattrs.

Signed-off-by: Christian Pulvermacher <pulvermacher@gmx.de>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoeCryptfs: Decrypt symlink target for stat size
Tyler Hicks [Mon, 22 Mar 2010 05:41:35 +0000 (00:41 -0500)]
eCryptfs: Decrypt symlink target for stat size

Create a getattr handler for eCryptfs symlinks that is capable of
reading the lower target and decrypting its path.  Prior to this patch,
a stat's st_size field would represent the strlen of the encrypted path,
while readlink() would return the strlen of the decrypted path.  This
could lead to confusion in some userspace applications, since the two
values should be equal.

https://bugs.launchpad.net/bugs/524919

Reported-by: Loïc Minier <loic.minier@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
14 years agoFix ISDN/Gigaset build failure
Linus Torvalds [Mon, 19 Apr 2010 18:53:17 +0000 (11:53 -0700)]
Fix ISDN/Gigaset build failure

Commit b91ecb00 ("gigaset: include cleanup cleanup") removed an implicit
sched.h inclusion that came in via slab.h, and caused various compile
problems as a result.

This should fix it.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 19 Apr 2010 15:35:47 +0000 (08:35 -0700)]
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/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:
  rcu: Make RCU lockdep check the lockdep_recursion variable
  rcu: Update docs for rcu_access_pointer and rcu_dereference_protected
  rcu: Better explain the condition parameter of rcu_dereference_check()
  rcu: Add rcu_access_pointer and rcu_dereference_protected

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Mon, 19 Apr 2010 14:27:45 +0000 (07:27 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  gigaset: include cleanup cleanup
  packet : remove init_net restriction
  WAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver.
  ip: Fix ip_dev_loopback_xmit()
  net: dev_pick_tx() fix
  fib: suppress lockdep-RCU false positive in FIB trie.
  tun: orphan an skb on tx
  forcedeth: fix tx limit2 flag check
  iwlwifi: work around bogus active chains detection

14 years agoMerge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Mon, 19 Apr 2010 14:27:06 +0000 (07:27 -0700)]
Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: add FireMV 2400 PCI ID.
  drm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET
  drivers/gpu/radeon: Add MSPOS regs to safe list.
  drm/radeon/kms: disable the tv encoder when tv/cv is not in use
  drm/radeon/kms: adjust pll settings for tv
  drm/radeon/kms: fix tv dac conflict resolver
  drm/radeon/kms/evergreen: don't enable hdmi audio stuff
  drm/radeon/kms/atom: fix dual-link DVI on DCE3.2/4.0
  drm/radeon/kms: fix rs600 tlb flush
  drm/radeon/kms: print GPU family and device id when loading
  drm/radeon/kms: fix calculation of mipmapped 3D texture sizes
  drm/radeon/kms: only change mode when coherent value changes.
  drm/radeon/kms: more atom parser fixes (v2)

14 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Mon, 19 Apr 2010 14:26:21 +0000 (07:26 -0700)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: 5974/1: arm/mach-at91 Makefile: remove two blanks.
  ARM: 6052/1: kdump: make kexec work in interrupt context
  ARM: 6051/1: VFP: preserve the HW context when calling signal handlers
  ARM: 6050/1: VFP: fix the SMP versions of vfp_{sync,flush}_hwstate
  ARM: 6007/1: fix highmem with VIPT cache and DMA
  ARM: 5975/1: AT91 slow-clock suspend: don't wait when turning PLLs off

14 years agopcmcia: fix error handling in cm4000_cs.c
Dan Carpenter [Sun, 18 Apr 2010 19:07:33 +0000 (22:07 +0300)]
pcmcia: fix error handling in cm4000_cs.c

In the original code we used -ENODEV as the number of bytes to
copy_to_user() and we didn't release the locks.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Harald Welte <laforge@gnumonks.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
14 years agomc13783-regulator: fix a memory leak in mc13783_regulator_remove
Axel Lin [Mon, 19 Apr 2010 01:58:02 +0000 (09:58 +0800)]
mc13783-regulator: fix a memory leak in mc13783_regulator_remove

This patch fixes a memory leak by freeing priv in mc13783_regulator_remove

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
14 years agoregulator: Let drivers know when they use the stub API
Jean Delvare [Sat, 3 Apr 2010 15:37:45 +0000 (17:37 +0200)]
regulator: Let drivers know when they use the stub API

Have the stub variant of regulator_get() return NULL, so that drivers
can (but still don't have to) handle this case specifically.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
14 years agodrm/radeon/kms: add FireMV 2400 PCI ID.
Dave Airlie [Mon, 19 Apr 2010 07:54:31 +0000 (17:54 +1000)]
drm/radeon/kms: add FireMV 2400 PCI ID.

This is an M24/X600 chip.

From RH# 581927

cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agosparc64: Fix PREEMPT_ACTIVE value.
David S. Miller [Mon, 19 Apr 2010 08:30:51 +0000 (01:30 -0700)]
sparc64: Fix PREEMPT_ACTIVE value.

It currently overlaps the NMI bit.

Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agorcu: Make RCU lockdep check the lockdep_recursion variable
Paul E. McKenney [Thu, 15 Apr 2010 19:50:39 +0000 (12:50 -0700)]
rcu: Make RCU lockdep check the lockdep_recursion variable

The lockdep facility temporarily disables lockdep checking by
incrementing the current->lockdep_recursion variable.  Such
disabling happens in NMIs and in other situations where lockdep
might expect to recurse on itself.

This patch therefore checks current->lockdep_recursion, disabling RCU
lockdep splats when this variable is non-zero.  In addition, this patch
removes the "likely()", as suggested by Lai Jiangshan.

Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Reported-by: David Miller <davem@davemloft.net>
Tested-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
Cc: eric.dumazet@gmail.com
LKML-Reference: <20100415195039.GA22623@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
14 years agodrm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET
Marek Olšák [Sun, 21 Feb 2010 20:24:15 +0000 (21:24 +0100)]
drm/radeon/kms: allow R500 regs VAP_ALT_NUM_VERTICES and VAP_INDEX_OFFSET

[airlied: fix V_A_N_V to not be safe and fix check to make sure only r500
 - bump userspace version]

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrivers/gpu/radeon: Add MSPOS regs to safe list.
Corbin Simpson [Sun, 11 Apr 2010 19:34:00 +0000 (12:34 -0700)]
drivers/gpu/radeon: Add MSPOS regs to safe list.

Permits MSAA and D3D-style rasterization.

[airlied: add rs600]

Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: disable the tv encoder when tv/cv is not in use
Alex Deucher [Tue, 13 Apr 2010 15:21:59 +0000 (11:21 -0400)]
drm/radeon/kms: disable the tv encoder when tv/cv is not in use

Switching between TV and VGA caused VGA to break on some systems
since the TV encoder was left enabled when VGA was used.

fixes fdo bug 25520.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: adjust pll settings for tv
Alex Deucher [Fri, 9 Apr 2010 19:31:56 +0000 (15:31 -0400)]
drm/radeon/kms: adjust pll settings for tv

May fix fdo bug 26582.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix tv dac conflict resolver
Alex Deucher [Thu, 15 Apr 2010 17:31:12 +0000 (13:31 -0400)]
drm/radeon/kms: fix tv dac conflict resolver

On systems with the tv dac shared between DVI and TV,
we can only use the dac for one of the connectors.
However, when using a digital monitor on the DVI port,
you can use the dac for the TV connector just fine.
Check the use_digital status when resolving the conflict.

Fixes fdo bug 27649, possibly others.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/evergreen: don't enable hdmi audio stuff
Alex Deucher [Fri, 16 Apr 2010 15:35:30 +0000 (11:35 -0400)]
drm/radeon/kms/evergreen: don't enable hdmi audio stuff

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms/atom: fix dual-link DVI on DCE3.2/4.0
Alex Deucher [Thu, 15 Apr 2010 20:54:38 +0000 (16:54 -0400)]
drm/radeon/kms/atom: fix dual-link DVI on DCE3.2/4.0

Got broken during the evergreen merge.
Fixes fdo bug 27001.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: fix rs600 tlb flush
Jerome Glisse [Fri, 16 Apr 2010 16:46:35 +0000 (18:46 +0200)]
drm/radeon/kms: fix rs600 tlb flush

Typo in in flush leaded to no flush of the RS600 tlb which
ultimately leaded to massive system ram corruption, with
this patch everythings seems to work properly.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agodrm/radeon/kms: print GPU family and device id when loading
Jerome Glisse [Mon, 12 Apr 2010 20:21:53 +0000 (20:21 +0000)]
drm/radeon/kms: print GPU family and device id when loading

This will help figuring out GPU when looking at bugs log.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
14 years agogigaset: include cleanup cleanup
Tilman Schmidt [Fri, 16 Apr 2010 12:08:58 +0000 (12:08 +0000)]
gigaset: include cleanup cleanup

Commit 5a0e3ad causes slab.h to be included twice in many of the
Gigaset driver's source files, first via the common include file
gigaset.h and then a second time directly. Drop the spares, and
use the opportunity to clean up a few more similar cases.

Impact: cleanup, no functional change
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
CC: Tejun Heo <tj@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt...
Linus Torvalds [Sat, 17 Apr 2010 21:28:50 +0000 (14:28 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: Ignore LVDS EDID when it is unavailabe or invalid
  drm/i915: Add no_lvds entry for the Clientron U800
  drm/i915: Rename many remaining uses of "output" to encoder or connector.
  drm/i915: Rename intel_output to intel_encoder.
  agp/intel: intel_845_driver is an agp driver!
  drm/i915: introduce to_intel_bo helper
  drm/i915: Disable FBC on 915GM and 945GM.

14 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Sat, 17 Apr 2010 17:58:38 +0000 (10:58 -0700)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI: EC: Limit burst to 64 bits

14 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Sat, 17 Apr 2010 17:57:56 +0000 (10:57 -0700)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: don't warn on EAGAIN in inode reclaim
  xfs: ensure that sync updates the log tail correctly

14 years ago[LogFS] Set s_bdi
Joern Engel [Sat, 17 Apr 2010 17:54:27 +0000 (19:54 +0200)]
[LogFS] Set s_bdi

Since 32a88aa1 sync() was turned into a NOP for logfs.  Worse, sync()
would not return an error, giving the illusion that writeout had
actually happened.

Afaics jffs2 was broken as well.

Signed-off-by: Joern Engel <joern@logfs.org>
14 years agodrivers/pcmcia: Add missing local_irq_restore
Julia Lawall [Mon, 29 Mar 2010 15:35:24 +0000 (17:35 +0200)]
drivers/pcmcia: Add missing local_irq_restore

Use local_irq_restore in this error-handling case just like in the one just
below.

A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression E1;
identifier f;
@@

f (...) { <+...
* local_irq_save (E1,...);
... when != E1
* return ...;
...+> }
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
14 years agoserial_cs: MD55x support (PCMCIA GPRS/EDGE modem) (kernel 2.6.33)
Timur Maximov [Wed, 14 Apr 2010 15:06:57 +0000 (19:06 +0400)]
serial_cs: MD55x support (PCMCIA GPRS/EDGE modem) (kernel 2.6.33)

Many PCMCIA GPRS modems like: Onda Edge N100E, Novaway PC98 (OEM SPC98Z),
Rovermate Edgus Adaptmate-039 and others have same construction and
identification:

lspcmcia -vvv
Product Name:   Generic Modem: MD55x 1.00 Serial number: xxxxx-xxx
Identification: manf_id: 0x015d card_id: 0x4c45
                function: 2 (serial)
                prod_id(1): "Generic" (0xc49e4731)
                prod_id(2): "Modem: MD55x" (0x8913b110)
                prod_id(3): "1.00" (0x83dbf271)
                prod_id(4): "Serial number: xxxxx-xxx" (0x73ee9514)

Serial connection to GSM module based on Elan VPU16551 PCMCIA UART with
datasheet recommeded 14.7456MHz crystal oscillator.

By default serial_cs set UART clock == 1843200 Hz
For correct work need set clock 14745600 Hz.
This quirk already present in driver, only need add device in quirk list.

Signed-off-by: Timur Maximov <xcom.org@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
14 years agopcmcia: avoid late calls to pccard_validate_cis
Dominik Brodowski [Sat, 17 Apr 2010 15:37:33 +0000 (17:37 +0200)]
pcmcia: avoid late calls to pccard_validate_cis

pccard_validate_cis() nowadays destroys the CIS cache. Therefore,
calling it after card setup should be avoided. We can't control
the deprecated PCMCIA ioctl (which is only used on ARM nowadays),
but we can avoid -- and report -- any other calls.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
14 years agopacket : remove init_net restriction
Daniel Lezcano [Wed, 14 Apr 2010 23:11:14 +0000 (23:11 +0000)]
packet : remove init_net restriction

The af_packet protocol is used by Perl to do ioctls as reported by
Stephane Riviere:

"Net::RawIP relies on SIOCGIFADDR et SIOCGIFHWADDR to get the IP and MAC
addresses of the network interface."

But in a new network namespace these ioctl fail because it is disabled for
a namespace different from the init_net_ns.

These two lines should not be there as af_inet and af_packet are
namespace aware since a long time now. I suppose we forget to remove these
lines because we sent the af_packet first, before af_inet was supported.

Signed-off-by: Daniel Lezcano <daniel.lezcano@free.fr>
Reported-by: Stephane Riviere <stephane.riviere@regis-dgac.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoWAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver.
Krzysztof Halasa [Wed, 14 Apr 2010 14:09:52 +0000 (14:09 +0000)]
WAN: flush tx_queue in hdlc_ppp to prevent panic on rmmod hw_driver.

tx_queue is used as a temporary queue when not allowed to queue skb
directly to the hw device driver (which may sleep). Most paths flush
it before returning, but ppp_start() currently cannot. Make sure we
don't leave skbs pointing to a non-existent device.

Thanks to Michael Barkowski for reporting this problem.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoMerge branch 'bugzilla-15749' into release
Len Brown [Fri, 16 Apr 2010 20:08:07 +0000 (16:08 -0400)]
Merge branch 'bugzilla-15749' into release

14 years agoACPI: EC: Limit burst to 64 bits
Alexey Starikovskiy [Fri, 16 Apr 2010 19:36:40 +0000 (15:36 -0400)]
ACPI: EC: Limit burst to 64 bits

access_bit_width field is u8 in ACPICA, thus 256 value written to it
becomes 0, causing divide by zero later.

Proper fix would be to remove access_bit_width at all, just because
we already have access_byte_width, which is access_bit_width / 8.
Limit access width to 64 bit for now.

https://bugzilla.kernel.org/show_bug.cgi?id=15749
fixes regression caused by the fix for:
https://bugzilla.kernel.org/show_bug.cgi?id=14667

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
14 years agoxfs: don't warn on EAGAIN in inode reclaim
Dave Chinner [Tue, 13 Apr 2010 05:06:45 +0000 (15:06 +1000)]
xfs: don't warn on EAGAIN in inode reclaim

Any inode reclaim flush that returns EAGAIN will result in the inode
reclaim being attempted again later. There is no need to issue a
warning into the logs about this situation.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
14 years agoxfs: ensure that sync updates the log tail correctly
Dave Chinner [Tue, 13 Apr 2010 05:06:44 +0000 (15:06 +1000)]
xfs: ensure that sync updates the log tail correctly

Updates to the VFS layer removed an extra ->sync_fs call into the
filesystem during the sync process (from the quota code).
Unfortunately the sync code was unknowingly relying on this call to
make sure metadata buffers were flushed via a xfs_buftarg_flush()
call to move the tail of the log forward in memory before the final
transactions of the sync process were issued.

As a result, the old code would write a very recent log tail value
to the log by the end of the sync process, and so a subsequent crash
would leave nothing for log recovery to do. Hence in qa test 182,
log recovery only replayed a small handle for inode fsync
transactions in this case.

However, with the removal of the extra ->sync_fs call, the log tail
was now not moved forward with the inode fsync transactions near the
end of the sync procese the first (and only) buftarg flush occurred
after these transactions went to disk. The result is that log
recovery now sees a large number of transactions for metadata that
is already on disk.

This usually isn't a problem, but when the transactions include
inode chunk allocation, the inode create transactions and all
subsequent changes are replayed as we cannt rely on what is on disk
is valid. As a result, if the inode was written and contains
unlogged changes, the unlogged changes are lost, thereby violating
sync semantics.

The fix is to always issue a transaction after the buftarg flush
occurs is the log iѕ not idle or covered. This results in a dummy
transaction being written that contains the up-to-date log tail
value, which will be very recent. Indeed, it will be at least as
recent as the old code would have left on disk, so log recovery
will behave exactly as it used to in this situation.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Fri, 16 Apr 2010 14:26:31 +0000 (07:26 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] max63xx driver depends on ioremap()
  [WATCHDOG] max63xx: be careful when disabling the watchdog
  [WATCHDOG] fixed book E watchdog period register mask.
  [WATCHDOG] omap4: Fix WDT Kconfig

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 16 Apr 2010 14:25:48 +0000 (07:25 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ASoC: imx-ssi: do not call hrtimer_disable in trigger function
  ALSA: hda - Add position_fix quirk for Biostar mobo
  ALSA: hda - add a quirk for Clevo M570U laptop
  ASoC: imx-ssi: increase minimum periods to 4
  ALSA: hda - Avoid invalid "Independent HP" control for VIA codecs
  ALSA: hda - Fix control element allocations in VIA codec parser
  ALSA: aaci - Fix alignment faults on ARM Cortex introduced by commit 29a4f2d3
  ALSA: hda - Add fix-up for Sony VAIO with ALC269
  ALSA: hda - Enhance fix-up table for Realtek codecs
  ALSA: usb - Fix Oops after usb-midi disconnection
  ALSA: hda - Fix initial capture source connections of ALC880/260
  ALSA: hda - Fix setup for ALC269vb amic and dmic models
  ALSA: hda - Fix auto-parser of ALC269vb for HP pin NID 0x21
  ASoC: imx-ssi: Use a hrtimer in FIQ mode
  ASoC: imx-pcm-dma-mx2: restart DMA after an error
  ASoC: imx-ssi: honor IMX_SSI_DMA flag
  ASoC: wm2000: remove unused #include <linux/version.h>
  ALSA: hda: Add support for Medion WIM2160

14 years agojfs: add jfs specific ->setattr call
Dmitry Monakhov [Fri, 16 Apr 2010 13:05:50 +0000 (08:05 -0500)]
jfs: add jfs specific ->setattr call

generic setattr not longer responsible for quota transfer.
use jfs_setattr for all jfs's inodes.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
14 years agojfs: fix diAllocExt error in resizing filesystem
Bill Pemberton [Fri, 16 Apr 2010 13:01:20 +0000 (08:01 -0500)]
jfs: fix diAllocExt error in resizing filesystem

Resizing the filesystem would result in an diAllocExt error in some
instances because changes in bmp->db_agsize would not get noticed if
goto extendBmap was called.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: jfs-discussion@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org
14 years ago[WATCHDOG] max63xx driver depends on ioremap()
Geert Uytterhoeven [Wed, 7 Apr 2010 17:57:02 +0000 (19:57 +0200)]
[WATCHDOG] max63xx driver depends on ioremap()

Correct fix for the "ioremap() causes build failure on S390" should have been
a dependancy on HAS_IOMEM. So we add this dependancy also (and leave the driver
in the ARM section for now).

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
14 years ago[WATCHDOG] max63xx: be careful when disabling the watchdog
Marc Zyngier [Fri, 9 Apr 2010 16:43:33 +0000 (17:43 +0100)]
[WATCHDOG] max63xx: be careful when disabling the watchdog

When shutting down the watchdog timer, special care must be taken
not to overwrite other bits in the register, as it may be shared
with other peripherals.

For example, on the Arcom Vulcan, the register is shared between
the watchdog and the PCI reset line...

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
14 years ago[WATCHDOG] fixed book E watchdog period register mask.
Luuk Paulussen [Thu, 15 Apr 2010 03:59:10 +0000 (15:59 +1200)]
[WATCHDOG] fixed book E watchdog period register mask.

A previous fix changed the WDTP function to use the period directly,
rather than subtracting from 63.  However the mask generation was
not changed, so the mask was coming out as 0.  This patch fixes it.

Signed-off-by: Luuk Paulussen <luuk.paulussen@alliedtelesis.co.nz>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
14 years ago[WATCHDOG] omap4: Fix WDT Kconfig
Santosh Shilimkar [Wed, 7 Apr 2010 07:47:22 +0000 (13:17 +0530)]
[WATCHDOG] omap4: Fix WDT Kconfig

This patch allows Watchdog timer to be selected for OMAP4 by fixing
Kconfig entry

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
14 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 16 Apr 2010 08:03:48 +0000 (10:03 +0200)]
Merge branch 'fix/hda' into for-linus

14 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Fri, 16 Apr 2010 08:03:42 +0000 (10:03 +0200)]
Merge branch 'fix/misc' into for-linus

14 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Fri, 16 Apr 2010 08:03:36 +0000 (10:03 +0200)]
Merge branch 'fix/asoc' into for-linus

14 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
David S. Miller [Thu, 15 Apr 2010 21:28:46 +0000 (14:28 -0700)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6

14 years agoip: Fix ip_dev_loopback_xmit()
Eric Dumazet [Thu, 15 Apr 2010 09:13:03 +0000 (09:13 +0000)]
ip: Fix ip_dev_loopback_xmit()

Eric Paris got following trace with a linux-next kernel

[   14.203970] BUG: using smp_processor_id() in preemptible [00000000]
code: avahi-daemon/2093
[   14.204025] caller is netif_rx+0xfa/0x110
[   14.204035] Call Trace:
[   14.204064]  [<ffffffff81278fe5>] debug_smp_processor_id+0x105/0x110
[   14.204070]  [<ffffffff8142163a>] netif_rx+0xfa/0x110
[   14.204090]  [<ffffffff8145b631>] ip_dev_loopback_xmit+0x71/0xa0
[   14.204095]  [<ffffffff8145b892>] ip_mc_output+0x192/0x2c0
[   14.204099]  [<ffffffff8145d610>] ip_local_out+0x20/0x30
[   14.204105]  [<ffffffff8145d8ad>] ip_push_pending_frames+0x28d/0x3d0
[   14.204119]  [<ffffffff8147f1cc>] udp_push_pending_frames+0x14c/0x400
[   14.204125]  [<ffffffff814803fc>] udp_sendmsg+0x39c/0x790
[   14.204137]  [<ffffffff814891d5>] inet_sendmsg+0x45/0x80
[   14.204149]  [<ffffffff8140af91>] sock_sendmsg+0xf1/0x110
[   14.204189]  [<ffffffff8140dc6c>] sys_sendmsg+0x20c/0x380
[   14.204233]  [<ffffffff8100ad82>] system_call_fastpath+0x16/0x1b

While current linux-2.6 kernel doesnt emit this warning, bug is latent
and might cause unexpected failures.

ip_dev_loopback_xmit() runs in process context, preemption enabled, so
must call netif_rx_ni() instead of netif_rx(), to make sure that we
process pending software interrupt.

Same change for ip6_dev_loopback_xmit()

Reported-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 15 Apr 2010 19:20:56 +0000 (12:20 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/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/gart: Disable GART explicitly before initialization
  dma-debug: Cleanup for copy-loop in filter_write()
  x86/amd-iommu: Remove obsolete parameter documentation
  x86/amd-iommu: use for_each_pci_dev
  Revert "x86: disable IOMMUs on kernel crash"
  x86/amd-iommu: warn when issuing command to uninitialized cmd buffer
  x86/amd-iommu: enable iommu before attaching devices
  x86/amd-iommu: Use helper function to destroy domain
  x86/amd-iommu: Report errors in acpi parsing functions upstream
  x86/amd-iommu: Pt mode fix for domain_destroy
  x86/amd-iommu: Protect IOMMU-API map/unmap path
  x86/amd-iommu: Remove double NULL check in check_device

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Thu, 15 Apr 2010 18:56:20 +0000 (11:56 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: cdev: change license of exported header files to MIT license
  firewire: cdev: comment fixlet
  firewire: cdev: iso packet documentation
  firewire: cdev: fix information leak
  firewire: cdev: require quadlet-aligned headers for transmit packets
  firewire: cdev: disallow receive packets without header

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Thu, 15 Apr 2010 18:49:55 +0000 (11:49 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - switch mode upon system resume
  Revert "Input: wacom - merge out and in prox events"
  Input: matrix_keypad - allow platform to disable key autorepeat
  Input: ALPS - add signature for HP Pavilion dm3 laptops
  Input: i8042 - spelling fix
  Input: sparse-keymap - implement safer freeing of the keymap
  Input: update the status of the Multitouch X driver project
  Input: clarify the no-finger event in multitouch protocol
  Input: bcm5974 - retract efi-broken suspend_resume
  Input: sparse-keymap - free the right keymap on error

14 years agoInput: wacom - switch mode upon system resume
Ping Cheng [Wed, 14 Apr 2010 06:07:52 +0000 (23:07 -0700)]
Input: wacom - switch mode upon system resume

When Wacom devices wake up from a sleep, the switch mode command
(wacom_query_tablet_data) is needed before wacom_open is called.
wacom_query_tablet_data should not be executed inside wacom_open
since wacom_open is called more than once during probe.

wacom_retrieve_hid_descriptor is removed from wacom_resume due
to the fact that the required descriptors are stored properly
upon system resume.

Reported-and-tested-by: Anton Anikin <Anton@Anikin.name>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Cc: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
14 years agopcmcia: fix ioport size calculation in rsrc_nonstatic
Dominik Brodowski [Thu, 15 Apr 2010 17:01:53 +0000 (19:01 +0200)]
pcmcia: fix ioport size calculation in rsrc_nonstatic

Size needs to be calculated after manipulating with the start value.

Reported-by: Komuro <komurojun-mbn@nifty.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
14 years agoASoC: imx-ssi: do not call hrtimer_disable in trigger function
Sascha Hauer [Wed, 14 Apr 2010 07:17:30 +0000 (09:17 +0200)]
ASoC: imx-ssi: do not call hrtimer_disable in trigger function

Doing so causes a deadlock, so just signal the timer to stop
using an atomic variable.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
14 years agofirewire: cdev: change license of exported header files to MIT license
Stefan Richter [Sun, 11 Apr 2010 09:52:12 +0000 (11:52 +0200)]
firewire: cdev: change license of exported header files to MIT license

Among else, this allows projects like libdc1394 to carry copies of the
ABI related header files without them or distributors having to worry
about effects on the project's overall license terms.  Switch to MIT
license as suggested by Kristian.  Also update the year in the
copyright statement according to source history.

Cc: Jay Fenlason <fenlason@redhat.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
14 years agonet: dev_pick_tx() fix
Eric Dumazet [Sun, 11 Apr 2010 21:18:17 +0000 (21:18 +0000)]
net: dev_pick_tx() fix

When dev_pick_tx() caches tx queue_index on a socket, we must check
socket dst_entry matches skb one, or risk a crash later, as reported by
Denys Fedorysychenko, if old packets are in flight during a route
change, involving devices with different number of queues.

Bug introduced by commit a4ee3ce3
(net: Use sk_tx_queue_mapping for connected sockets)

Reported-by: Denys Fedorysychenko <nuclearcat@nuclearcat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>