Commit Graph

253579 Commits

Author SHA1 Message Date
Mark Brown
1622ee1822 ASoC: Only update SYSCLK_ENA when pausing WM8915 SYSCLK
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
2011-06-06 12:46:33 +01:00
Mark Brown
05d3962cc9 Merge branch 'for-3.0' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into for-3.0 2011-06-06 10:38:23 +01:00
Bruno Prémont
a50d28de8d video: Fix use-after-free by vga16fb on rmmod
Since fb_info is now refcounted and thus may get freed at any time it
gets unregistered module unloading will try to unregister framebuffer
as stored in platform data on probe though this pointer may
be stale.

Cleanup platform data on framebuffer release.

CC: stable@kernel.org
Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-06 18:14:45 +09:00
Linus Torvalds
59c5f46fbe Linux 3.0-rc2 2011-06-06 18:06:33 +09:00
Hugh Dickins
e0dcd8a05b mm: fix ENOSPC returned by handle_mm_fault()
Al Viro observes that in the hugetlb case, handle_mm_fault() may return
a value of the kind ENOSPC when its caller is expecting a value of the
kind VM_FAULT_SIGBUS: fix alloc_huge_page()'s failure returns.

Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-06 18:00:27 +09:00
Linus Torvalds
0d6925d43b 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:
  ALSA: usb - turn off de-emphasis in s/pdif for cm6206
  ALSA: asihpi: Use angle brackets for system includes
  ALSA: fm801: add error handling if auto-detect fails
  ALSA: hda - Check pin support EAPD in ad198x_power_eapd_write
  ALSA: hda - Fix HP and Front pins of ad1988/ad1989 in ad198x_power_eapd()
  ALSA: 6fire: Don't leak firmware in error path
  ASoC: Fix wm_hubs input PGA ZC bits
  ASoC: Fix dapm_is_shared_kcontrol so everything isn't shared
2011-06-06 17:51:28 +09:00
Linus Torvalds
c12f667e75 Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
  hwmon: (max6642): Better chip detection schema
  hwmon: (coretemp) Further relax temperature range checks
  hwmon: (coretemp) Fix TjMax detection for older CPUs
  hwmon: (coretemp) Relax target temperature range check
  hwmon: (max6642) Rename temp_fault sysfs attribute to temp2_fault
2011-06-06 17:48:02 +09:00
Mike Waychison
74b5c5bfff KVM: Initialize kvm before registering the mmu notifier
It doesn't make sense to ever see a half-initialized kvm structure on
mmu notifier callbacks.  Previously, 85722cda changed the ordering to
ensure that the mmu_lock was initialized before mmu notifier
registration, but there is still a race where the mmu notifier could
come in and try accessing other portions of struct kvm before they are
intialized.

Solve this by moving the mmu notifier registration to occur after the
structure is completely initialized.

Google-Bug-Id: 452199
Signed-off-by: Mike Waychison <mikew@google.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-06-06 11:27:52 +03:00
Marcelo Tosatti
221192bdff KVM: x86: use proper port value when checking io instruction permission
Commit f6511935f4 moved the permission check for io instructions
to the ->check_perm callback. It failed to copy the port value from RDX
register for string and "in,out ax,dx" instructions.

Fix it by reading RDX register at decode stage when appropriate.

Fixes FC8.32 installation.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2011-06-06 10:52:09 +03:00
Takashi Iwai
3190dad97b Merge branch 'fix/asoc' into for-linus 2011-06-06 09:28:49 +02:00
Dmitry Torokhov
cd3c18ba2f USB: xhci - fix interval calculation for FS isoc endpoints
Full-speed isoc endpoints specify interval in exponent based form in
frames, not microframes, so we need to adjust accordingly.

NEC xHCI host controllers will return an error code of 0x11 if a full
speed isochronous endpoint is added with the Interval field set to
something less than 3 (2^3 = 8 microframes, or one frame).  It is
impossible for a full speed device to have an interval smaller than one
frame.

This was always an issue in the xHCI driver, but commit
dfa49c4ad1 "USB: xhci - fix math in
xhci_get_endpoint_interval()" removed the clamping of the minimum value
in the Interval field, which revealed this bug.

This needs to be backported to stable kernels back to 2.6.31.

Reported-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
2011-06-05 21:01:38 -07:00
David S. Miller
85fadea9ce Merge branch 'pablo/nf-2.6-updates' of git://1984.lsi.us.es/net-2.6 2011-06-05 17:14:04 -07:00
Grant Likely
5fb9fb132c net: fix smc91x.c device tree support
Fix missing semicolon at end of smc91x.c match tabledevice driver.
Also remove unnecessary #ifdef around of_match_table pointer.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-05 17:02:51 -07:00
Dave Jones
d232b8dded netfilter: use unsigned variables for packet lengths in ip[6]_queue.
Netlink message lengths can't be negative, so use unsigned variables.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-06-06 01:37:16 +02:00
Pablo Neira Ayuso
88ed01d17b netfilter: nf_conntrack: fix ct refcount leak in l4proto->error()
This patch fixes a refcount leak of ct objects that may occur if
l4proto->error() assigns one conntrack object to one skbuff. In
that case, we have to skip further processing in nf_conntrack_in().

With this patch, we can also fix wrong return values (-NF_ACCEPT)
for special cases in ICMP[v6] that should not bump the invalid/error
statistic counters.

Reported-by: Zoltan Menyhart <Zoltan.Menyhart@bull.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-06-06 01:37:02 +02:00
Julian Anastasov
d9be76f385 netfilter: nf_nat: fix crash in nf_nat_csum
Fix crash in nf_nat_csum when mangling packets
in OUTPUT hook where skb->dev is not defined, it is set
later before POSTROUTING. Problem happens for CHECKSUM_NONE.
We can check device from rt but using CHECKSUM_PARTIAL
should be safe (skb_checksum_help).

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-06-06 01:36:46 +02:00
Jozsef Kadlecsik
b48e3c5c32 netfilter: ipset: Use the stored first cidr value instead of '1'
The stored cidr values are tried one after anoter. The boolean
condition evaluated to '1' instead of the first stored cidr or
the default host cidr.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-06-06 01:35:29 +02:00
Jozsef Kadlecsik
fcbf128171 netfilter: ipset: Fix return code for destroy when sets are in use
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-06-06 01:35:15 +02:00
Julian Anastasov
afb523c547 ipvs: restore support for iptables SNAT
Fix the IPVS priority in LOCAL_IN hook,
so that SNAT target in POSTROUTING is supported for IPVS
traffic as in 2.6.36 where it worked depending on
module load order.

	Before 2.6.37 we used priority 100 in LOCAL_IN to
process remote requests. We used the same priority as
iptables SNAT and if IPVS handlers are installed before
SNAT handlers we supported SNAT in POSTROUTING for the IPVS
traffic. If SNAT is installed before IPVS, the netfilter
handlers are before IPVS and netfilter checks the NAT
table twice for the IPVS requests: once in LOCAL_IN where
IPS_SRC_NAT_DONE is set and second time in POSTROUTING
where the SNAT rules are ignored because IPS_SRC_NAT_DONE
was already set in LOCAL_IN.

	But in 2.6.37 we changed the IPVS priority for
LOCAL_IN with the goal to be unique (101) forgetting the
fact that for IPVS traffic we should not walk both
LOCAL_IN and POSTROUTING nat tables.

	So, change the priority for processing remote
IPVS requests from 101 to 99, i.e. before NAT_SRC (100)
because we prefer to support SNAT in POSTROUTING
instead of LOCAL_IN. It also moves the priority for
IPVS replies from 99 to 98. Use constants instead of
magic numbers at these places.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-06-06 01:35:13 +02:00
Eric Dumazet
fb04883371 netfilter: add more values to enum ip_conntrack_info
Following error is raised (and other similar ones) :

net/ipv4/netfilter/nf_nat_standalone.c: In function ‘nf_nat_fn’:
net/ipv4/netfilter/nf_nat_standalone.c:119:2: warning: case value ‘4’
not in enumerated type ‘enum ip_conntrack_info’

gcc barfs on adding two enum values and getting a not enumerated
result :

case IP_CT_RELATED+IP_CT_IS_REPLY:

Add missing enum values

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: David Miller <davem@davemloft.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-06-06 01:35:10 +02:00
Neil Horman
374eeb5a9d bonding: reset queue mapping prior to transmission to physical device (v5)
The bonding driver is multiqueue enabled, in which each queue represents a slave
to enable optional steering of output frames to given slaves against the default
output policy.  However, it needs to reset the skb->queue_mapping prior to
queuing to the physical device or the physical slave (if it is multiqueue) could
wind up transmitting on an unintended tx queue

Change Notes:
v2) Based on first pass review, updated the patch to restore the origional queue
mapping that was found in bond_select_queue, rather than simply resetting to
zero.  This preserves the value of queue_mapping when it was set on receive in
the forwarding case which is desireable.

v3) Fixed spelling an casting error in skb->cb

v4) fixed to store raw queue_mapping to avoid double decrement

v5) Eric D requested that ->cb access be wrapped in a macro.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-05 14:31:25 -07:00
Sucheta Chakraborty
5b446c6a71 qlcnic: Avoid double free of skb in tx path
buffer->skb should be marked NULL to avoid double free of the skb.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-05 14:18:19 -07:00
Anirban Chakraborty
54ff502c28 qlcnic: Fix bug in FW queue dump
Due to a change in FW template, a bug was introduced in dump queue entries. This is
fixed by reinitializing queue address before looping for each que dump operation.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-05 14:18:19 -07:00
Al Viro
b8f07a0631 fix return values of l2tp_dfs_seq_open()
More fallout from struct net lifetime rules review: PTR_ERR() is *already*
negative and failing ->open() should return negatives on failure.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-05 14:11:09 -07:00
Al Viro
c316e6a308 get_net_ns_by_fd() oopses if proc_ns_fget() returns an error
BTW, looking through the code related to struct net lifetime rules has
caught something else:

struct net *get_net_ns_by_fd(int fd)
{
        ...
        file = proc_ns_fget(fd);
        if (!file)
                goto out;

        ei = PROC_I(file->f_dentry->d_inode);

while in proc_ns_fget() we have two return ERR_PTR(...) and not a single
path that would return NULL.  The other caller of proc_ns_fget() treats
ERR_PTR() correctly...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-05 14:11:09 -07:00
Alex Deucher
f3aeceac61 drm/radeon/kms/atom: fix PHY init
The PHY was not initialized correctly after
ac89af1e10 since
the function bailed early as an encoder was not
assigned.  The encoder isn't necessary for PHY init
so just assign to 0 for init so that the table
is executed.

Reported-by: Ari Savolainen <ari.m.savolainen@gmail.com>
Tested-by: Ari Savolainen <ari.m.savolainen@gmail.com>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-06-05 16:34:13 +10:00
Linus Torvalds
0792644d22 Merge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra
* 'for-linus' of git://android.git.kernel.org/kernel/tegra:
  ARM: Tegra: Harmony: Fix conflicting GPIO numbering
2011-06-05 08:11:11 +09:00
Stephen Warren
f2a4d8ae4d ARM: Tegra: Harmony: Fix conflicting GPIO numbering
Currently, both the WM8903 and TPS6586x chips attempt to register with
gpiolib using the same GPIO numbers. This causes the audio driver to
fail to initialize.

To solve this, add a define to board-harmony.h for the TPS6586x, and make
board-harmony-power.c use this define, instead of directly referencing
TEGRA_NR_GPIOS.

This fixes a regression introduced by commit
6f168f2fa6.
ARM: tegra: harmony: initialize the TPS65862 PMIC

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-06-04 15:51:52 -07:00
Linus Torvalds
e6ece70732 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (25 commits)
  btrfs: fix uninitialized variable warning
  btrfs: add helper for fs_info->closing
  Btrfs: add mount -o inode_cache
  btrfs: scrub: add explicit plugging
  btrfs: use btrfs_ino to access inode number
  Btrfs: don't save the inode cache if we are deleting this root
  btrfs: false BUG_ON when degraded
  Btrfs: don't save the inode cache in non-FS roots
  Btrfs: make sure we don't overflow the free space cache crc page
  Btrfs: fix uninit variable in the delayed inode code
  btrfs: scrub: don't reuse bios and pages
  Btrfs: leave spinning on lookup and map the leaf
  Btrfs: check for duplicate entries in the free space cache
  Btrfs: don't try to allocate from a block group that doesn't have enough space
  Btrfs: don't always do readahead
  Btrfs: try not to sleep as much when doing slow caching
  Btrfs: kill BTRFS_I(inode)->block_group
  Btrfs: don't look at the extent buffer level 3 times in a row
  Btrfs: map the node block when looking for readahead targets
  Btrfs: set range_start to the right start in count_range_bits
  ...
2011-06-05 06:17:23 +09:00
Hans de Goede
6a574b5b9b drm/i915: Add a no lvds quirk for the Asus EeeBox PC EB1007
I found this while figuring out why gnome-shell would not run on my
Asus EeeBox PC EB1007. As a standalone "pc" this device cleary does not have
an internal panel, yet it claims it does. Add a quirk to fix this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
cc: stable@kernel.org
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:48:45 -07:00
Chris Wilson
3f43c48d33 drm/i915: Share the common force-audio property between connectors
Make the audio property creation routine common and share the single
property between the connectors.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:41:25 -07:00
Chris Wilson
4bce2da393 drm/i915: Remove unused enum "chip_family"
Superseded by the tracking the render generation in the chipset
capabiltiies struct.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:41:18 -07:00
Daniel Vetter
c8ebc2b076 drm/915: fix relaxed tiling on gen2: tile height
A tile on gen2 has a size of 2kb, stride of 128 bytes and 16 rows.

Userspace was broken and assumed 8 rows. Chris Wilson noted that the
kernel unfortunately can't reliable check that because libdrm rounds
up the size to the next bucket.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:41:12 -07:00
Chris Wilson
d3bcb75776 drm/i915/crt: Explicitly return false if connected to a digital monitor
Rather than proceed on and silently return false by default, mention why
we rejected the presence of an EDID as implying the presence of a VGA
monitor. (The question arises whether there is a broken EDID which falsely
reports a digital connection when attached by VGA.)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:41:06 -07:00
Chris Wilson
9f405100f2 drm/i915: Replace ironlake_compute_wm0 with g4x_compute_wm0
The computation of the first-level watermarks for g4x and gen5+ are
based on the same algorithm, so we can refactor those code paths to
use a single function.

Note that g4x_compute_wm0 takes a 'plane' argument while
ironlake_compute_wm0 took a 'pipe' argument. Both should have used a
'plane' argument, so this patch fixes that as well (not that it caused
a problem; ironlake always uses pipe == plane).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:40:59 -07:00
Daniel Vetter
bf3301abba drm/i915: Only print out the actual number of fences for i915_error_state
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:40:52 -07:00
Chris Wilson
c8cbbb8ba9 drm/i915: s/addr & ~PAGE_MASK/offset_in_page(addr)/
Convert our open coded offset_in_page() to the common macro.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:40:42 -07:00
Nicolas Kaiser
5cbba41d28 drm: i915: correct return status in intel_hdmi_mode_valid()
Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:40:35 -07:00
Jason Stubbs
95e0ee92d3 drm/i915: fix regression after clock gating init split
During the refactoring in revision 6067aaeadb,
the intel_enable_clock_gating was split up into several functions that are
then called indirectly. However, which function to call was not specified for
the IS_PINEVIEW() case. This patch specifies the correct gating function.

Signed-off-by: Jason Stubbs <jasonbstubbs@gmail.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:40:26 -07:00
Dan Carpenter
f6b07f45e2 drm/i915: fix if statement in ivybridge irq handler
The extra semicolon was not intended.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2011-06-04 10:40:17 -07:00
Per Dalén
942c1a927b hwmon: (max6642): Better chip detection schema
Improve detection of MAX6642 by reading non existing registers (0x04, 0x06
and 0xff). Reading those registers returns the previously read value.

Signed-off-by: Per Dalen <per.dalen@appeartv.com>
[guenter.roeck@ericsson.com: added second set of register reads]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2011-06-04 10:34:28 -07:00
Linus Torvalds
23c79d31a3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] Fix oops caused by queue refcounting failure
2011-06-04 23:19:51 +09:00
Linus Torvalds
0e833d8cfc 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: (40 commits)
  tg3: Fix tg3_skb_error_unmap()
  net: tracepoint of net_dev_xmit sees freed skb and causes panic
  drivers/net/can/flexcan.c: add missing clk_put
  net: dm9000: Get the chip in a known good state before enabling interrupts
  drivers/net/davinci_emac.c: add missing clk_put
  af-packet: Add flag to distinguish VID 0 from no-vlan.
  caif: Fix race when conditionally taking rtnl lock
  usbnet/cdc_ncm: add missing .reset_resume hook
  vlan: fix typo in vlan_dev_hard_start_xmit()
  net/ipv4: Check for mistakenly passed in non-IPv4 address
  iwl4965: correctly validate temperature value
  bluetooth l2cap: fix locking in l2cap_global_chan_by_psm
  ath9k: fix two more bugs in tx power
  cfg80211: don't drop p2p probe responses
  Revert "net: fix section mismatches"
  drivers/net/usb/catc.c: Fix potential deadlock in catc_ctrl_run()
  sctp: stop pending timers and purge queues when peer restart asoc
  drivers/net: ks8842 Fix crash on received packet when in PIO mode.
  ip_options_compile: properly handle unaligned pointer
  iwlagn: fix incorrect PCI subsystem id for 6150 devices
  ...
2011-06-04 23:16:00 +09:00
David Sterba
aa0467d8d2 btrfs: fix uninitialized variable warning
With Linus' tree, today's linux-next build (powercp ppc64_defconfig)
produced this warning:

fs/btrfs/delayed-inode.c: In function 'btrfs_delayed_update_inode':
fs/btrfs/delayed-inode.c:1598:6: warning: 'ret' may be used
uninitialized in this function

Introduced by commit 16cdcec736 ("btrfs: implement delayed inode items
operation").

This fixes a bug in btrfs_update_inode(): if the returned value from
btrfs_delayed_update_inode is a nonzero garbage, inode stat data are not
updated and several call paths may hit a BUG_ON or fail with strange
code.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David Sterba <dsterba@suse.cz>
2011-06-04 08:11:38 -04:00
David Sterba
7841cb2898 btrfs: add helper for fs_info->closing
wrap checking of filesystem 'closing' flag and fix a few missing memory
barriers.

Signed-off-by: David Sterba <dsterba@suse.cz>
2011-06-04 08:11:22 -04:00
Chris Mason
4b9465cb9e Btrfs: add mount -o inode_cache
This makes the inode map cache default to off until we
fix the overflow problem when the free space crcs don't fit
inside a single page.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-06-04 08:03:47 -04:00
Arne Jansen
e7786c3ae5 btrfs: scrub: add explicit plugging
With the removal of the implicit plugging scrub ends up doing more and
smaller I/O than necessary. This patch adds explicit plugging per chunk.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-06-04 08:03:46 -04:00
David Sterba
a4689d2bd3 btrfs: use btrfs_ino to access inode number
commit 4cb5300bc ("Btrfs: add mount -o auto_defrag") accesses inode
number directly while it should use the helper with the new inode
number allocator.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-06-04 08:03:46 -04:00
Josef Bacik
d132a538d2 Btrfs: don't save the inode cache if we are deleting this root
With xfstest 254 I can panic the box every time with the inode number caching
stuff on.  This is because we clean the inodes out when we delete the subvolume,
but then we write out the inode cache which adds an inode to the subvolume inode
tree, and then when it gets evicted again the root gets added back on the dead
roots list and is deleted again, so we have a double free.  To stop this from
happening just return 0 if refs is 0 (and we're not the tree root since tree
root always has refs of 0).  With this fix 254 no longer panics.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Tested-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-06-04 08:03:45 -04:00
Arne Jansen
5f3f302a6f btrfs: false BUG_ON when degraded
In degraded mode the struct btrfs_device of missing devs don't have
device->name set. A kstrdup of NULL correctly returns NULL. Don't
BUG in this case.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-06-04 08:03:44 -04:00