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404712 commits

Author SHA1 Message Date
Zhouyi Zhou
8e50d384cc perf tools: Fixup mmap event consumption
The tail position of the event buffer should only be modified after
actually use that event.

If not the event buffer could be invalid before use, and segment fault
occurs when invoking perf top -G.

Signed-off-by: Zhouyi Zhou <yizhouzhou@ict.ac.cn>
Cc: David Ahern <dsahern@gmail.com>
Cc: Zhouyi Zhou <yizhouzhou@ict.ac.cn>
Link: http://lkml.kernel.org/r/1382600613-32177-1-git-send-email-zhouzhouyi@gmail.com
[ Simplified the logic using exit gotos and renamed write_tail method to mmap_consume ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-28 16:06:00 -03:00
Jiri Olsa
ae779a6309 perf top: Split -G and --call-graph
Splitting -G and --call-graph for record command, so we could use '-G'
with no option.

The '-G' option now takes NO argument and enables the configured unwind
method, which is currently the frame pointers method.

It will be possible to configure unwind method via config file in
upcoming patches.

All current '-G' arguments is overtaken by --call-graph option.

NOTE: The documentation for top --call-graph option
      was wrongly copied from report command.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: David Ahern <dsahern@gmail.com>
Tested-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: David Ahern <dsahern@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1382797536-32303-3-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-28 16:06:00 -03:00
Jiri Olsa
09b0fd45ff perf record: Split -g and --call-graph
Splitting -g and --call-graph for record command, so we could use '-g'
with no option.

The '-g' option now takes NO argument and enables the configured unwind
method, which is currently the frame pointers method.

It will be possible to configure unwind method via config file in
upcoming patches.

All current '-g' arguments is overtaken by --call-graph option.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: David Ahern <dsahern@gmail.com>
Tested-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: David Ahern <dsahern@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1382797536-32303-2-git-send-email-jolsa@redhat.com
[ reordered -g/--call-graph on --help and expanded the man page
  according to comments by David Ahern and Namhyung Kim ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-28 16:05:59 -03:00
Jiri Olsa
9754c4f9b2 perf hists: Add color overhead for stdio output buffer
Following commit tightened up the buffer size for output to strict width
of used format columns:

  99cf666 perf hists: Fix formatting of long symbol names

This works fine until you hit color overhead output which places extra
bytes into output buffer. We need to account for color overhead in the
output buffer. Adding maximum color byte size to the output buffer size.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1382700293-1803-1-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-28 16:05:59 -03:00
Trond Myklebust
d49f042aee NFSv4: Fix state reference counting in _nfs4_opendata_reclaim_to_nfs4_state
Currently, if the call to nfs_refresh_inode fails, then we end up leaking
a reference count, due to the call to nfs4_get_open_state.
While we're at it, replace nfs4_get_open_state with a simple call to
atomic_inc(); there is no need to do a full lookup of the struct nfs_state
since it is passed as an argument in the struct nfs4_opendata, and
is already assigned to the variable 'state'.

Cc: stable@vger.kernel.org # 3.7.x: a43ec98b72: NFSv4: don't fail on missing
Cc: stable@vger.kernel.org # 3.7.x
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-28 14:57:12 -04:00
Weston Andros Adamson
a43ec98b72 NFSv4: don't fail on missing fattr in open recover
This is an unneeded check that could cause the client to fail to recover
opens.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-28 14:54:03 -04:00
Weston Andros Adamson
f494a6071d NFSv4: fix NULL dereference in open recover
_nfs4_opendata_reclaim_to_nfs4_state doesn't expect to see a cached
open CLAIM_PREVIOUS, but this can happen. An example is when there are
RDWR openers and RDONLY openers on a delegation stateid. The recovery
path will first try an open CLAIM_PREVIOUS for the RDWR openers, this
marks the delegation as not needing RECLAIM anymore, so the open
CLAIM_PREVIOUS for the RDONLY openers will not actually send an rpc.

The NULL dereference is due to _nfs4_opendata_reclaim_to_nfs4_state
returning PTR_ERR(rpc_status) when !rpc_done. When the open is
cached, rpc_done == 0 and rpc_status == 0, thus
_nfs4_opendata_reclaim_to_nfs4_state returns NULL - this is unexpected
by callers of nfs4_opendata_to_nfs4_state().

This can be reproduced easily by opening the same file two times on an
NFSv4.0 mount with delegations enabled, once as RDWR and once as RDONLY then
sleeping for a long time.  While the files are held open, kick off state
recovery and this NULL dereference will be hit every time.

An example OOPS:

[   65.003602] BUG: unable to handle kernel NULL pointer dereference at 00000000
00000030
[   65.005312] IP: [<ffffffffa037d6ee>] __nfs4_close+0x1e/0x160 [nfsv4]
[   65.006820] PGD 7b0ea067 PUD 791ff067 PMD 0
[   65.008075] Oops: 0000 [#1] SMP
[   65.008802] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache
snd_ens1371 gameport nfsd snd_rawmidi snd_ac97_codec ac97_bus btusb snd_seq snd
_seq_device snd_pcm ppdev bluetooth auth_rpcgss coretemp snd_page_alloc crc32_pc
lmul crc32c_intel ghash_clmulni_intel microcode rfkill nfs_acl vmw_balloon serio
_raw snd_timer lockd parport_pc e1000 snd soundcore parport i2c_piix4 shpchp vmw
_vmci sunrpc ata_generic mperf pata_acpi mptspi vmwgfx ttm scsi_transport_spi dr
m mptscsih mptbase i2c_core
[   65.018684] CPU: 0 PID: 473 Comm: 192.168.10.85-m Not tainted 3.11.2-201.fc19
.x86_64 #1
[   65.020113] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop
Reference Platform, BIOS 6.00 07/31/2013
[   65.022012] task: ffff88003707e320 ti: ffff88007b906000 task.ti: ffff88007b906000
[   65.023414] RIP: 0010:[<ffffffffa037d6ee>]  [<ffffffffa037d6ee>] __nfs4_close+0x1e/0x160 [nfsv4]
[   65.025079] RSP: 0018:ffff88007b907d10  EFLAGS: 00010246
[   65.026042] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   65.027321] RDX: 0000000000000050 RSI: 0000000000000001 RDI: 0000000000000000
[   65.028691] RBP: ffff88007b907d38 R08: 0000000000016f60 R09: 0000000000000000
[   65.029990] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[   65.031295] R13: 0000000000000050 R14: 0000000000000000 R15: 0000000000000001
[   65.032527] FS:  0000000000000000(0000) GS:ffff88007f600000(0000) knlGS:0000000000000000
[   65.033981] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   65.035177] CR2: 0000000000000030 CR3: 000000007b27f000 CR4: 00000000000407f0
[   65.036568] Stack:
[   65.037011]  0000000000000000 0000000000000001 ffff88007b907d90 ffff88007a880220
[   65.038472]  ffff88007b768de8 ffff88007b907d48 ffffffffa037e4a5 ffff88007b907d80
[   65.039935]  ffffffffa036a6c8 ffff880037020e40 ffff88007a880000 ffff880037020e40
[   65.041468] Call Trace:
[   65.042050]  [<ffffffffa037e4a5>] nfs4_close_state+0x15/0x20 [nfsv4]
[   65.043209]  [<ffffffffa036a6c8>] nfs4_open_recover_helper+0x148/0x1f0 [nfsv4]
[   65.044529]  [<ffffffffa036a886>] nfs4_open_recover+0x116/0x150 [nfsv4]
[   65.045730]  [<ffffffffa036d98d>] nfs4_open_reclaim+0xad/0x150 [nfsv4]
[   65.046905]  [<ffffffffa037d979>] nfs4_do_reclaim+0x149/0x5f0 [nfsv4]
[   65.048071]  [<ffffffffa037e1dc>] nfs4_run_state_manager+0x3bc/0x670 [nfsv4]
[   65.049436]  [<ffffffffa037de20>] ? nfs4_do_reclaim+0x5f0/0x5f0 [nfsv4]
[   65.050686]  [<ffffffffa037de20>] ? nfs4_do_reclaim+0x5f0/0x5f0 [nfsv4]
[   65.051943]  [<ffffffff81088640>] kthread+0xc0/0xd0
[   65.052831]  [<ffffffff81088580>] ? insert_kthread_work+0x40/0x40
[   65.054697]  [<ffffffff8165686c>] ret_from_fork+0x7c/0xb0
[   65.056396]  [<ffffffff81088580>] ? insert_kthread_work+0x40/0x40
[   65.058208] Code: 5c 41 5d 5d c3 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 e5 41 57 41 89 f7 41 56 41 89 ce 41 55 41 89 d5 41 54 53 48 89 fb <4c> 8b 67 30 f0 41 ff 44 24 44 49 8d 7c 24 40 e8 0e 0a 2d e1 44
[   65.065225] RIP  [<ffffffffa037d6ee>] __nfs4_close+0x1e/0x160 [nfsv4]
[   65.067175]  RSP <ffff88007b907d10>
[   65.068570] CR2: 0000000000000030
[   65.070098] ---[ end trace 0d1fe4f5c7dd6f8b ]---

Cc: <stable@vger.kernel.org> #3.7+
Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-28 14:53:32 -04:00
Trond Myklebust
83c78eb042 NFSv4.1: Don't change the security label as part of open reclaim.
The current caching model calls for the security label to be set on
first lookup and/or on any subsequent label changes. There is no
need to do it as part of an open reclaim.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-28 14:50:38 -04:00
Jeff Layton
1966903f8e nfs: fix handling of invalid mount options in nfs_remount
nfs_parse_mount_options returns 0 on error, not -errno.

Reported-by: Karel Zak <kzak@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-28 14:35:07 -04:00
Jeff Layton
57acc40d73 nfs: reject version and minorversion changes on remount attempts
Reported-by: Eric Doutreleau <edoutreleau@genoscope.cns.fr>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-28 14:30:23 -04:00
Andy Adamson
3660cd4322 NFSv4 Remove zeroing state kern warnings
As of commit 5d422301f9 we no longer zero the
state.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-28 14:28:53 -04:00
Matt Fleming
72548e836b x86/efi: Add EFI framebuffer earlyprintk support
It's incredibly difficult to diagnose early EFI boot issues without
special hardware because earlyprintk=vga doesn't work on EFI systems.

Add support for writing to the EFI framebuffer, via earlyprintk=efi,
which will actually give users a chance of providing debug output.

Cc: H. Peter Anvin <hpa@zytor.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Jones <pjones@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-10-28 18:09:58 +00:00
Olof Johansson
b6fb5474af The imx/mxs soc changes for 3.13:
* Low-level debug support for Vybrid
 * Support soc bus/device for imx6
 * Suspend support for imx6dl and imx6sl
 * The imx6q clock updates for PCIe and audio PLL support
 * IOMUXC GPR update for fec support
 * Some random cleanup
 * A few defconfig updates
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Merge tag 'imx-soc-3.13' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc

From Shawn Guo:
The imx/mxs soc changes for 3.13:

* Low-level debug support for Vybrid
* Support soc bus/device for imx6
* Suspend support for imx6dl and imx6sl
* The imx6q clock updates for PCIe and audio PLL support
* IOMUXC GPR update for fec support
* Some random cleanup
* A few defconfig updates

* tag 'imx-soc-3.13' of git://git.linaro.org/people/shawnguo/linux-2.6: (31 commits)
  ARM: imx: enable suspend for imx6sl
  ARM: imx: ensure dsm_request signal is not asserted when setting LPM
  ARM: imx6q: call WB and RBC configuration from imx6q_pm_enter()
  ARM: imx6q: move low-power code out of clock driver
  ARM: imx: drop extern with function prototypes in common.h
  ARM: imx: reset core along with enable/disable operation
  ARM: imx: do not return from imx_cpu_die() call
  ARM: imx_v6_v7_defconfig: Select CONFIG_PROVE_LOCKING
  ARM: imx_v6_v7_defconfig: Enable LEDS_GPIO related options
  ARM: mxs_defconfig: Turn off CONFIG_DEBUG_GPIO
  ARM: imx: replace imx6q_restart() with mxc_restart()
  ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt
  ARM: mach-imx: mm-imx5: Retrieve tzic base address from dt
  ARM: mach-imx: clk-imx51-imx53: Retrieve base address and irq from dt
  ARM: mxs_defconfig: Add CHIPIDEA_UDC support
  ARM: imx: Include linux/err.h
  ARM: imx_v6_v7_defconfig: Add CHIPIDEA_UDC support
  ARM: imx_v6_v7_defconfig: Add SPDIF support
  ARM: imx6q: clock and Kconfig update for PCIe support
  ARM: imx: Add LVDS general-purpose clocks to i.MX6Q
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-28 10:37:52 -07:00
Olof Johansson
826f57b497 Merge tag 'sunxi-defconfig-for-3.13' of https://github.com/mripard/linux into next/soc
From Maxime Ripard:
Allwinner sunXi defconfig changes for 3.13

This pull request only see the introduction of a sunxi_defconfig.

* tag 'sunxi-defconfig-for-3.13' of https://github.com/mripard/linux:
  ARM: sunxi: Add a defconfig for the Allwinner SoCs

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-28 10:19:46 -07:00
Olof Johansson
0d74578b7d ARM: sunxi: remove .init_time hooks
The machine entries were split up, but the cleanup to remove .init_time
removed the function that the new/split entries refer to. Remove them
since they are no longer needed.

Cc: Maxime Ripard <mripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-28 10:19:45 -07:00
Olof Johansson
e086df92e2 Allwinner sunXi SoCs machine additions for 3.13
Nothing outstanding here, mostly some documentation cleanup, and the split of
 the previous generic machine declaration into three different machines to
 handle the sun4i/sun5i, sun6i and sun7i separately.
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Merge tag 'sunxi-core-for-3.13' of https://github.com/mripard/linux into next/soc

From Maxime Ripard:
Allwinner sunXi SoCs machine additions for 3.13

Nothing outstanding here, mostly some documentation cleanup, and the split of
the previous generic machine declaration into three different machines to
handle the sun4i/sun5i, sun6i and sun7i separately.

* tag 'sunxi-core-for-3.13' of https://github.com/mripard/linux:
  Documentation: dt: Remove clock gates IDs list for Allwinner SoCs
  Documentation: dt: Remove interrupt sources list for Allwinner SoCs
  Documentation: sunxi: Update Allwinner SoC documentation
  Documentation: sunxi: Update A13 user manual dead link
  ARM: sunxi: Order Kconfig options alphabetically
  ARM: sunxi: Simplify restart setup code
  ARM: sunxi: Split out the DT machines for sun6i and sun7i

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-28 10:19:38 -07:00
Olof Johansson
0fc869e8f2 Merge branch 'cleanup/dt-clock' into next/soc
Merging in dt clock cleanup as a pre-req with some of the later SoC branches.

There are a handful of conflicts here -- some of the already merged SoC
branches should have been based on the cleanup but weren't.

In particular, a remove/add of include on highbank and two remove/remove
conflicts on kirkwood were fixed up.

* cleanup/dt-clock: (28 commits)
  ARM: vt8500: remove custom .init_time hook
  ARM: vexpress: remove custom .init_time hook
  ARM: tegra: remove custom .init_time hook
  ARM: sunxi: remove custom .init_time hook
  ARM: sti: remove custom .init_time hook
  ARM: socfpga: remove custom .init_time hook
  ARM: rockchip: remove custom .init_time hook
  ARM: prima2: remove custom .init_time hook
  ARM: nspire: remove custom .init_time hook
  ARM: nomadik: remove custom .init_time hook
  ARM: mxs: remove custom .init_time hook
  ARM: kirkwood: remove custom .init_time hook
  ARM: imx: remove custom .init_time hook
  ARM: highbank: remove custom .init_time hook
  ARM: exynos: remove custom .init_time hook
  ARM: dove: remove custom .init_time hook
  ARM: bcm2835: remove custom .init_time hook
  ARM: bcm: provide common arch init for DT clocks
  ARM: call of_clk_init from default time_init handler
  ARM: vt8500: prepare for arch-wide .init_time callback
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-28 10:11:42 -07:00
Rob Pearce
645378d85e drm/i915: No LVDS hardware on Intel D410PT and D425KT
The Intel D410PT(LW) and D425KT Mini-ITX desktop boards both show up as
having LVDS but the hardware is not populated. This patch adds them to
the list of such systems. Patch is against 3.11.4

v2: Patch revised to match the D425KT exactly as the D425KTW does have
LVDS.  According to Intel's documentation, the D410PTL and D410PLTW
don't.

Signed-off-by: Rob Pearce <rob@flitspace.org.uk>
Cc: stable@vger.kernel.org
[danvet: Pimp commit message to my liking and add cc: stable.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-28 17:48:30 +01:00
Jani Nikula
c6cd2ee2d5 drm/i915/dp: workaround BIOS eDP bpp clamping issue
This isn't a real fix to the problem, but rather a stopgap measure while
trying to find a proper solution.

There are several laptops out there that fail to light up the eDP panel
in UEFI boot mode. They seem to be mostly IVB machines, including but
apparently not limited to Dell XPS 13, Asus TX300, Asus UX31A, Asus
UX32VD, Acer Aspire S7. They seem to work in CSM or legacy boot.

The difference between UEFI and CSM is that the BIOS provides a
different VBT to the kernel. The UEFI VBT typically specifies 18 bpp and
1.62 GHz link for eDP, while CSM VBT has 24 bpp and 2.7 GHz link. We end
up clamping to 18 bpp in UEFI mode, which we can fit in the 1.62 Ghz
link, and for reasons yet unknown fail to light up the panel.

Dithering from 24 to 18 bpp itself seems to work; if we use 18 bpp with
2.7 GHz link, the eDP panel lights up. So essentially this is a link
speed issue, and *not* a bpp clamping issue.

The bug raised its head since
commit 657445fe86
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Sat May 4 10:09:18 2013 +0200

    Revert "drm/i915: revert eDP bpp clamping code changes"

which started clamping bpp *before* computing the link requirements, and
thus affecting the required bandwidth. Clamping after the computations
kept the link at 2.7 GHz.

Even though the BIOS tells us to use 18 bpp through the VBT, it happily
boots up at 24 bpp and 2.7 GHz itself! Use this information to
selectively ignore the VBT provided value.

We can't ignore the VBT eDP bpp altogether, as there are other laptops
that do require the clamping to be used due to EDID reporting higher bpp
than the panel can support.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=59841
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67950
Tested-by: Ulf Winkelvos <ulf@winkelvos.de>
Tested-by: jkp <jkp@iki.fi>
CC: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-28 17:48:30 +01:00
Ville Syrjälä
7195a50b5c drm/i915: Add HSW CRT output readout support
Call intel_ddi_get_config() to get the pipe_bpp settings from
DDI.

The sync polarity settings from DDI are irrelevant for CRT
output, so override them with data from the ADPA register.

Note: This is already merged in drm-intel-next-queued as

commit 6801c18c0a
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Tue Sep 24 14:24:05 2013 +0300

    drm/i915: Add HSW CRT output readout support

but is required for the following edp bpp bugfix.

v2: Extract intel_crt_get_flags()

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69691
Tested-by: Qingshuai Tian <qingshuai.tian@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-28 17:48:24 +01:00
Takashi Iwai
298402a385 ASoC: dapm: Return -ENOMEM in snd_soc_dapm_new_dai_widgets()
... instead of NULL dereferences.

Spotted by coverity CID 402004.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-28 09:33:10 -07:00
Takashi Iwai
ff18620c21 ASoC: dapm: Fix source list debugfs outputs
... due to a copy & paste error.

Spotted by coverity CID 710923.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
2013-10-28 09:32:57 -07:00
Ingo Molnar
d17cccbea9 perf/urgent fixes:
. Fix up /proc/PID/maps parsing, where perfectly fine mmap entries
   were being trown away when synthesizing PERF_RECORD_MMAP for
   preexisting threads, prevenging symbol resolution to work
   for those threads, broken in the MMAP2 removal. Reported and
   pinpointed by Markus Trippelsdorf,
 
 . Fix mem leak in the python 'perf script' backend, due to missing Py_DECREFs
   on dict entries, fix from Joseph Schuchart.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

* Fix up /proc/PID/maps parsing, where perfectly fine mmap entries
  were being trown away when synthesizing PERF_RECORD_MMAP for
  preexisting threads, prevenging symbol resolution to work
  for those threads, broken in the MMAP2 removal. Reported and
  pinpointed by Markus Trippelsdorf,

* Fix mem leak in the python 'perf script' backend, due to missing Py_DECREFs
  on dict entries, fix from Joseph Schuchart.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-28 15:56:50 +01:00
Tim Gardner
944d6f1a5b cifs: Remove redundant multiplex identifier check from check_smb_hdr()
The only call site for check_smb_header() assigns 'mid' from the SMB
packet, which is then checked again in check_smb_header(). This seems
like redundant redundancy.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Tim Gardner <timg@tpi.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2013-10-28 09:31:36 -05:00
Steve French
34f626406c Query file system attributes from server on SMB2, not just cifs, mounts
Currently SMB2 and SMB3 mounts do not query the file system attributes
from the server at mount time as is done for cifs.  These can be useful for debugging.

Signed-off-by: Steve French <smfrench@gmail.com>
2013-10-28 09:22:55 -05:00
Steve French
64a5cfa6db Allow setting per-file compression via SMB2/3
Allow cifs/smb2/smb3 to return whether or not a file is compressed
via lsattr, and allow SMB2/SMB3 to set the per-file compression
flag ("chattr +c filename" on an smb3 mount).

Windows users often set the compressed flag (it can be
done from the desktop and file manager).  David Disseldorp
has patches to Samba server to support this (at least on btrfs)
which are complementary to this

Signed-off-by: Steve French <smfrench@gmail.com>
2013-10-28 09:22:31 -05:00
Steve French
7ff8d45c9d Fix corrupt SMB2 ioctl requests
We were off by one calculating the length of ioctls in some cases
because the protocol specification for SMB2 ioctl includes a mininum
one byte payload but not all SMB2 ioctl requests actually have
a data buffer to send. We were also not zeroing out the
return buffer (in case of error this is helpful).

Signed-off-by: Steve French <smfrench@gmail.com>
2013-10-28 09:21:36 -05:00
Arnaldo Carvalho de Melo
2fd869f08a perf tools: Fix up /proc/PID/maps parsing
When introducing support for MMAP2 we considered more parts of each map
representation in /proc/PID/maps, and when disabling it we forgot to
reduce the number of expected parsed/assigned entries in the sscanf
call, fix it to expect the right number of desired fields, 5.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Based-on-a-patch-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-vrbo1wik997ahjzl1chm3bdm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-10-28 09:38:12 -03:00
Robin Murphy
d0f38f9130 arm64: update 32-bit kuser helpers to ARMv8
This patch updates the barrier semantics in the kuser helper functions
to take advantage of the ARMv8 additions to AArch32, which are
guaranteed to be available in situations where these functions will be
called.

Note that this slightly changes the cmpxchg functions in that they are
no longer necessarily full barriers if they return 1. However, the
documentation only states they include their own barriers "as needed",
not that they are obligated to act as a full barrier for the caller.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
CC: Matthew Leach <matthew.leach@arm.com>
CC: Dave Martin <dave.martin@arm.com>
CC: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-10-28 10:40:28 +00:00
Michael wang
ac9ff7997b sched: Remove extra put_online_cpus() inside sched_setaffinity()
Commit 6acce3ef8:

	sched: Remove get_online_cpus() usage

has left one extra put_online_cpus() inside sched_setaffinity(),
remove it to fix the WARN:

   ------------[ cut here ]------------
   WARNING: CPU: 0 PID: 3166 at kernel/cpu.c:84 put_online_cpus+0x43/0x70()
   ...
   [<ffffffff810c3fef>] put_online_cpus+0x43/0x70 [
   [<ffffffff810efd59>] sched_setaffinity+0x7d/0x1f9 [
   ...

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/526DD0EE.1090309@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-28 11:36:50 +01:00
Thomas Pfaff
bbfe65c219 genirq: Set the irq thread policy without checking CAP_SYS_NICE
In commit ee23871389 ("genirq: Set irq thread to RT priority on
creation") we moved the assigment of the thread's priority from the
thread's function into __setup_irq(). That function may run in user
context for instance if the user opens an UART node and then driver
calls requests in the ->open() callback. That user may not have
CAP_SYS_NICE and so the irq thread won't run with the SCHED_OTHER
policy.

This patch uses sched_setscheduler_nocheck() so we omit the CAP_SYS_NICE
check which is otherwise required for the SCHED_OTHER policy.

[bigeasy: Rewrite the changelog]

Signed-off-by: Thomas Pfaff <tpfaff@pcs.com>
Cc: Ivo Sieben <meltedpianoman@gmail.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1381489240-29626-1-git-send-email-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-10-28 09:50:42 +01:00
Ville Syrjälä
4f56d12ebb drm/i915: Add support for pipe_bpp readout
On CTG+ read out the pipe bpp setting from hardware and fill it into
pipe config. Also check it appropriately.

v2: Don't do the pipe_bpp extraction inside the PCH only code block on
    ILK+.
    Avoid the PIPECONF read as we already have read it for the
    PIPECONF_EANBLE check.

Note: This is already in drm-intel-next-queued as
commit 42571aefaf
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Fri Sep 6 23:29:00 2013 +0300

    drm/i915: Add support for pipe_bpp readout

but is needed for the following bugfix.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2013-10-28 09:34:37 +01:00
Hendrik Brueckner
ac526f42ab tty/hvc_iucv: remove redundant NULL check
Make smatch happy and remove this warning:

drivers/tty/hvc/hvc_iucv.c:1320 hvc_iucv_init() info: redundant null check on
hvc_iucv_filter calling kfree()

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-10-28 08:36:29 +01:00
Stefan Weinhuber
c81a90c853 s390/dasd: Write to profile data area only if it is available
We check for the existence of block->profile.data before we write to
it, but the dependent code block misses braces.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-10-28 08:36:27 +01:00
Joe Perches
302bfe20ad s390: convert use of typedef ctl_table to struct ctl_table
This typedef is unnecessary and should just be removed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-10-28 08:36:25 +01:00
Steffen Klassert
eeb1b73378 xfrm: Increase the garbage collector threshold
With the removal of the routing cache, we lost the
option to tweak the garbage collector threshold
along with the maximum routing cache size. So git
commit 703fb94ec ("xfrm: Fix the gc threshold value
for ipv4") moved back to a static threshold.

It turned out that the current threshold before we
start garbage collecting is much to small for some
workloads, so increase it from 1024 to 32768. This
means that we start the garbage collector if we have
more than 32768 dst entries in the system and refuse
new allocations if we are above 65536.

Reported-by: Wolfgang Walter <linux@stwm.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2013-10-28 07:37:52 +01:00
Olof Johansson
2de1a7a855 Merge most of tag 'tags/exynos-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git into next/dt
From Kukjin Kim, these are device-tree updates for Exynos. Among the changes:
- add MIPI PHY node for exynos4
- update regulator for origen and exynos5250-arndale
- add support HDMI for exynos5250, exynos5420

* commit '93457b9cb9':
  ARM: dts: Add HDMI related I2C nodes for Arndale board
  ARM: dts: enable hdmi subsystem for exynos5420 smdk board
  ARM: dts: add dt nodes for hdmi subsystem for exynos5420
  ARM: dts: add i2c device nodes for Exynos5420
  ARM: dts: add clocks to hdmi dt node for exynos5250
  ARM: dts: add mixer clocks to mixer node for Exynos5250
  of/documentation: update with clock information for exynos hdmi subsystem
  ARM: dts: Disable Exynos5250 I2S controllers by default
  ARM: dts: Add reg property to regulator nodes in exynos5250-arndale
  ARM: dts: Add fixed voltage regulator to simple bus for origen
  ARM: dts: Add MIPI PHY node to exynos4.dtsi
2013-10-27 21:54:02 -07:00
Olof Johansson
3316dee245 add dmaengine based s3c24xx dma driver
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Merge tag 's3c24xx-dma' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers

From Kukjin Kim, this branch adds device-tree support to the DMA controller
on the older Samsung SoCs. It also adds support for one of the missing SoCs
in the family (2410).

The driver has been Ack:ed by Vinod Koul, but is merged through here due
to dependencies with platform code.

* tag 's3c24xx-dma' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: S3C24XX: add dma pdata for s3c2410, s3c2440 and s3c2442
  dmaengine: s3c24xx-dma: add support for the s3c2410 type of controller
  ARM: S3C24XX: Fix possible dma selection warning
  ARM: SAMSUNG: set s3c24xx_dma_filter for s3c64xx-spi0 device
  ARM: S3C24XX: add platform-devices for new dma driver for s3c2412 and s3c2443
  dmaengine: add driver for Samsung s3c24xx SoCs
  ARM: S3C24XX: number the dma clocks
  + Linux 3.12-rc3

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-27 21:42:44 -07:00
Olof Johansson
02673f94d0 update Samsung maintainer
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Merge tag 'samsung-maintainer' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup

From Kukjin Kim, an update to the Samsung maintainer entries.

* tag 'samsung-maintainer' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  MAINTAINERS: Add DTS files to patterns for Samsung platform

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-27 21:33:46 -07:00
Olof Johansson
6251c156a6 Samsung Cleanup for v3.13
- remove unnecessary config options and header inclusions
 - use CONFIG_ARCH_S3C64XX instead of PLAT_S3C64XX
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Merge tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup

From Kukjin Kim:
Samsung Cleanup for v3.13
- remove unnecessary config options and header inclusions
- use CONFIG_ARCH_S3C64XX instead of PLAT_S3C64XX

* tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: EXYNOS: remove CONFIG_MACH_EXYNOS[4, 5]_DT config options
  ARM: EXYNOS: remove unnecessary header inclusions from exynos4/5 dt machine file
  ARM: S3C64XX: Kill CONFIG_PLAT_S3C64XX
  ASoC: samsung: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support
  s3c-camif: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support
  gpio: samsung: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support
  ARM: S3C64XX: Move if ARCH_S3C64XX statement into mach-s3c64xx

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-27 21:31:00 -07:00
Olof Johansson
d31a408f4f Five incremental device tree patches around the clock handling,
and adding SSP/SPI devices to the device tree.
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Merge tag 'ux500-dt-for-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/dt

From Linus Walleij:
Five incremental device tree patches around the clock handling,
and adding SSP/SPI devices to the device tree.

* tag 'ux500-dt-for-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
  ARM: ux500: register all SSP and SPI blocks
  ARM: ux500: fix I2C4 clock bit
  ARM: ux500: fix clock for GPIO blocks 6 and 7
  clk: ux500: fix erroneous bit assignment
  ARM: ux500: fix clock for GPIO block 8

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-27 21:19:54 -07:00
Eric Dumazet
fc59d5bdf1 pkt_sched: fq: clear time_next_packet for reused flows
When a socket is freed/reallocated, we need to clear time_next_packet
or else we can inherit a prior value and delay first packets of the
new flow.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-28 00:18:31 -04:00
Olof Johansson
17761fc80f Allwinner sunXi SoCs minor fixes for 3.13
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Merge tag 'sunxi-fixes-for-3.13' of https://github.com/mripard/linux into next/dt

From Maxime Ripard:
Allwinner sunXi SoCs minor fixes for 3.13

* tag 'sunxi-fixes-for-3.13' of https://github.com/mripard/linux:
  ARM: sun6i: Fix the APB2 clock gates register size

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-27 21:15:45 -07:00
Olof Johansson
c90d19be27 Allwinner sunXi SoCs device tree changes for 3.13
This DT series sees the introduction of the cubietruck DT, plus the addition of
 the i2c controller for the A20 based boards, and of the Security ID found in
 all the Allwinner SoCs but the A31.
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Merge tag 'sunxi-dt-for-3.13' of https://github.com/mripard/linux into next/dt

From Maxime Ripard:
Allwinner sunXi SoCs device tree changes for 3.13

This DT series sees the introduction of the cubietruck DT, plus the addition of
the i2c controller for the A20 based boards, and of the Security ID found in
all the Allwinner SoCs but the A31.

* tag 'sunxi-dt-for-3.13' of https://github.com/mripard/linux:
  ARM: sunxi: dts: Add support for the cubieboard3, the CubieTruck
  ARM: sun7i: olinuxino-micro: Enable the I2C controllers
  ARM: sun7i: cubieboard2: Enable the I2C controllers
  ARM: sun7i: Add the pin muxing options for the I2C controllers
  ARM: sun7i: Enable the I2C controllers
  ARM: sunxi: dt: Add sunxi-sid to dts for sun4i, sun5i and sun7i

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-10-27 21:14:40 -07:00
Ebru Akagunduz
30bb0e7182 Staging:line6: fix line over 80 characters
Fix checkpatch.pl issues with line over 80 characters
in playback.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-27 20:43:46 -07:00
Archana kumari
156d52cac6 staging: rts5139: Replaced min() with min_t() in
This patch replaces min() with min_t() in rts51x_scsi.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-27 20:43:46 -07:00
Rashika Kheria
c0fa05f3de Staging: line6: Fix Sparse Warning of incorrect type
This patch fixes the following sparse warnings in toneport.c-

drivers/staging/line6/toneport.c:329:48: warning: incorrect type in argument 1 (different base types)
drivers/staging/line6/toneport.c:329:48:    expected short [signed] product
drivers/staging/line6/toneport.c:329:48:    got restricted __le16 [usertype] idProduct
drivers/staging/line6/toneport.c:385:48: warning: incorrect type in argument 1 (different base types)
drivers/staging/line6/toneport.c:385:48:    expected short [signed] product
drivers/staging/line6/toneport.c:385:48:    got restricted __le16 [usertype] idProduct
drivers/staging/line6/toneport.c:438:64: warning: incorrect type in argument 1 (different base types)
drivers/staging/line6/toneport.c:438:64:    expected short [signed] product
drivers/staging/line6/toneport.c:438:64:    got restricted __le16 [usertype] idProduct

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-27 20:43:46 -07:00
Rashika Kheria
f3912ce336 Staging: line6: Fix Sparse Warning of restricted __le16 degrades to integer
This patch fixes the following sparse warning in toneport.c-
warning: restricted __le16 degrades to integer

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-27 20:43:46 -07:00
Rashika Kheria
5a083bda90 Staging: line6: Fix Sparse warning of restricted __le16 degrades to integer
This patch fixes the following sparse warning in driver.c-
warning: restricted __le16 degrades to integer

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-27 20:43:46 -07:00
Nandini Hanumanthagowda
afd4dfbc06 staging: vt6656: removed space after '*' in pointer declaration
space after '*' in pointer declaration is not preferred in linux
and results in checkpatch error. Hence removed the spaces present
after the '*' in pointer declarations to fix the checkpatch errors

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-27 20:38:24 -07:00