Commit Graph

547692 Commits

Author SHA1 Message Date
Linus Torvalds
f24fe98df8 One bug fix for raid1/raid10.
Very careless bug earler in 4.3-rc, now fixed :-)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJWGYrdAAoJEDnsnt1WYoG56vcP/03E7DoycDQ7uH46i2szf3M/
 isy0dk+2S9D87iBz/xf4RXvAY7FTHy9/vIG/o6UKYkhSRzm6T6xCbrwd+duS2TSc
 yQM33BJ1VdM+trGj5ywrdF8guwRMjW4NFPnez16moVSVZDbNK2pUdZiw8kGSi39n
 hpjftyefojISG6rbDGBGK2JiVTNOqDjMH2Ny8MhX2J5ryQQOsd6+9ojgri3nfTbP
 6PmP08QyVxdYA3ZUlTZaKUNZ8AQHgoydhiEyGbdCewcE8pYaeEUqvcBi4DrDOil8
 9BGHnf755Wl3k26P8uBsvri9zp+SZl0LEZLhSpyFpRmCTaFGn0pnSKJ0intnRTPc
 JZ7gTY6q1Bt5DXToZw7hHVWgxjos8aweS2JLzSJloB6FFlDCckypkvSR4GQL7R9N
 jIYntfwaQaJIgUSzVo/Aw6vjBTWbqyLHf3DP8ImsPSe/z0gjtRiyPkjoZgthuYp2
 ErLoVe/JgKstR0gmobbdRhShIfXMFVAIwasXOXfq4Ye4LRwvfAwP2UDHrC25mb0O
 IJi6fMqf3bWxmLIzFUcTe8Z2nzuKolAgP2rcd6kb0bbLxE4Y5xtzCV8fgnhk2obw
 HvP4zZnacLKx8Nvet+YGUKjVJU3wx4RTgyGLU4WqC13fwZREeJLWwxgK859ZJ8yl
 k+TQud5fKgfkX20+eTA0
 =qdcM
 -----END PGP SIGNATURE-----

Merge tag 'md/4.3-rc4-fix' of git://neil.brown.name/md

Pull md bugfix from Neil Brown:
 "One bug fix for raid1/raid10.

  Very careless bug earler in 4.3-rc, now fixed :-)"

* tag 'md/4.3-rc4-fix' of git://neil.brown.name/md:
  crash in md-raid1 and md-raid10 due to incorrect list manipulation
2015-10-11 09:35:51 -07:00
Linus Torvalds
4a06c8ac2f USB fixes for 4.3-rc5
Here are some small USB and PHY fixes and quirk updates for 4.3-rc5.
 Nothing major here, full details in the shortlog, and all of these have
 been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlYZOFUACgkQMUfUDdst+ymLSACeLNl7IWSxq2acJ5rhUl5+LRxp
 KtsAn3lMXJryk4xw2WpfJg30TXpWXnNM
 =n9ei
 -----END PGP SIGNATURE-----

Merge tag 'usb-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB and PHY fixes and quirk updates for 4.3-rc5.

  Nothing major here, full details in the shortlog, and all of these
  have been in linux-next for a while"

* tag 'usb-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: Add device quirk for Logitech PTZ cameras
  USB: chaoskey read offset bug
  USB: Add reset-resume quirk for two Plantronics usb headphones.
  usb: renesas_usbhs: Add support for R-Car H3
  usb: renesas_usbhs: fix build warning if 64-bit architecture
  usb: gadget: bdc: fix memory leak
  phy: berlin-sata: Fix module autoload for OF platform driver
  phy: rockchip-usb: power down phy when rockchip phy probe
  phy: qcom-ufs: fix build error when the component is built as a module
2015-10-10 11:17:45 -07:00
Linus Torvalds
97d0c931c0 TTY/Serial driver fixes for 4.3-rc5
Here are a few bug fixes for the tty core that resolve reported issues,
 and some serial driver fixes as well (including the much-reported imx
 driver problem.)
 
 All of these have been in linux-next with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlYZOMsACgkQMUfUDdst+ykHVQCdEiZhPNcK5Y6E80pzvhGSSkHa
 s+kAoJLT4hqzehZkP1hVImxKmWQpq1d1
 =8zsH
 -----END PGP SIGNATURE-----

Merge tag 'tty-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver fixes from Greg KH:
 "Here are a few bug fixes for the tty core that resolve reported
  issues, and some serial driver fixes as well (including the
  much-reported imx driver problem)

  All of these have been in linux-next with no reported problems"

* tag 'tty-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  drivers/tty: require read access for controlling terminal
  serial: 8250: add uart_config entry for PORT_RT2880
  tty: fix data race on tty_buffer.commit
  tty: fix data race in tty_buffer_flush
  tty: fix data race in flush_to_ldisc
  tty: fix stall caused by missing memory barrier in drivers/tty/n_tty.c
  serial: atmel: fix error path of probe function
  tty: don't leak cdev in tty_cdev_add()
  Revert "serial: imx: remove unbalanced clk_prepare"
2015-10-10 11:09:55 -07:00
Linus Torvalds
91dbc047e9 Staging fixes for 4.3-rc5
Here are two tiny staging tree fixes for 4.3-rc5.
 
 One fixes the broken speakup subsystem as reported by a user, and the
 other removes an entry in the MAINTAINERS file for a developer that
 doesn't want to be listed anymore.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlYZOUkACgkQMUfUDdst+yk/wACgiCc+ChkU/WzC5eH+yACHOYwy
 ouQAoNZgUZvmXQs9+X3VqTo/hAGa0/ru
 =5fAh
 -----END PGP SIGNATURE-----

Merge tag 'staging-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging fixes from Greg KH:
 "Here are two tiny staging tree fixes for 4.3-rc5.

  One fixes the broken speakup subsystem as reported by a user, and the
  other removes an entry in the MAINTAINERS file for a developer that
  doesn't want to be listed anymore"

* tag 'staging-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: speakup: fix speakup-r regression
  MAINTAINERS: Remove myself as nvec co-maintainer
2015-10-10 11:03:31 -07:00
Linus Torvalds
ef19df60c9 Char/Misc driver fixes for 4.3-rc5
Here are some small fixes for some misc drivers that resolve some
 reported issues.  All of these have been linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlYZOecACgkQMUfUDdst+ykwmwCgpzrjwT0xxZRsDxk+ZeANvmlM
 F+MAoJ0e+QZ0AeoADE9PjDgk5LHIUffH
 =yAgG
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small fixes for some misc drivers that resolve some
  reported issues.  All of these have been linux-next for a while"

* tag 'char-misc-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  mcb: Fix error handling in mcb_pci_probe()
  mei: hbm: fix error in state check logic
  nvmem: sunxi: Check for memory allocation failure
  nvmem: core: Fix memory leak in nvmem_cell_write
  nvmem: core: Handle shift bits in-place if cell->nbits is non-zero
  nvmem: core: fix the out-of-range leak in read/write()
2015-10-10 10:58:27 -07:00
Linus Torvalds
bbecce8d76 Merge git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:

 - MIPS didn't define the new ioremap_uc.  Defined it as an alias for
   ioremap_uncached.

 - Replace workaround for MIPS16 build issue with a correct one.

* git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Define ioremap_uc
  MIPS: UAPI: Ignore __arch_swab{16,32,64} when using MIPS16
  Revert "MIPS: UAPI: Fix unrecognized opcode WSBH/DSBH/DSHD when using MIPS16."
2015-10-10 10:51:55 -07:00
Linus Torvalds
1d8a12d1de Merge branch 'stable/for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb
Pull swiotlb fixlet from Konrad Rzeszutek Wilk:
 "Enable the SWIOTLB under 32-bit PAE kernels.

  Nowadays most distros enable this due to CONFIG_HYPERVISOR|XEN=y which
  select SWIOTLB.  But for those that are not interested in
  virtualization and wanting to use 32-bit PAE kernels and wanting to
  have working DMA operations - this configures it for them"

* 'stable/for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
  swiotlb: Enable it under x86 PAE
2015-10-10 10:31:13 -07:00
Trond Myklebust
daf3761c9f namei: results of d_is_negative() should be checked after dentry revalidation
Leandro Awa writes:
 "After switching to version 4.1.6, our parallelized and distributed
  workflows now fail consistently with errors of the form:

  T34: ./regex.c:39:22: error: config.h: No such file or directory

  From our 'git bisect' testing, the following commit appears to be the
  possible cause of the behavior we've been seeing: commit 766c4cbfacd8"

Al Viro says:
 "What happens is that 766c4cbfac got the things subtly wrong.

  We used to treat d_is_negative() after lookup_fast() as "fall with
  ENOENT".  That was wrong - checking ->d_flags outside of ->d_seq
  protection is unreliable and failing with hard error on what should've
  fallen back to non-RCU pathname resolution is a bug.

  Unfortunately, we'd pulled the test too far up and ran afoul of
  another kind of staleness.  The dentry might have been absolutely
  stable from the RCU point of view (and we might be on UP, etc), but
  stale from the remote fs point of view.  If ->d_revalidate() returns
  "it's actually stale", dentry gets thrown away and the original code
  wouldn't even have looked at its ->d_flags.

  What we need is to check ->d_flags where 766c4cbfac does (prior to
  ->d_seq validation) but only use the result in cases where we do not
  discard this dentry outright"

Reported-by: Leandro Awa <lawa@nvidia.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=104911
Fixes: 766c4cbfac ("namei: d_is_negative() should be checked...")
Tested-by: Leandro Awa <lawa@nvidia.com>
Cc: stable@vger.kernel.org # v4.1+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-10-10 10:17:27 -07:00
Linus Torvalds
149fadf2ce Power management and ACPI fixes for v4.3-rc5
- Two fixes for cpufreq regressions, an acpi-cpufreq driver one
    introduced during the 4.2 cycle when we started to preserve
    cpufreq directories for offline CPUs and a general one
    introduced recently (Srinivas Pandruvada).
 
  - Two devfreq fixes, one for a double kfree() in an error code
    path and one for a confusing sysfs-related failure (Geliang Tang,
    Tobias Jakobi).
 
 /
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCAAGBQJWGEL/AAoJEILEb/54YlRxnqsP/i9hnNDDhm1L+WW6YfB++BmY
 LRhYSIKY73Q7ILXyk06tZLaOu5C1hohMNWfJKHJBROaMtSCgT1xE3OYD14a7QVQW
 fWVejjOnOmxZOkgC/t7x6ZQBHSd/j8L+EFQkwWhU5Q7H7ezj4e7pf4pPZRvEz2rI
 aJEipY7AYKGKB+q3RlkXsFZiMA59z1rebbZA+aOsIytZwtUhNL0XeTXuT+G3VQ0Z
 YP65JZjXYvyl+JxkUhEGqcYK5VO2TBTrRuBqb9lUGo8IruKhIsEjnq9tsLtF69SX
 HBJ1AS5dAxZOcRXHbea/8+nB4e1kPwKespqgCc8w4ggSz51uV+YI7lwiD5Py7dWc
 3uZTpUv1fqiy0HM1br/IKus2KyZMglHx6k5MbtMrt/Xi1MFuG3b4sNcZs/tY6jXN
 Jl3X+a0ne3zY2+XDQgwYEnqNnTUQyVDRSkbE8sG57Bs3T2EcXiaI2HF+9XuYnDLg
 zC8T/VO9L122yGBnAakP5rtFapNB3AdHjJ0OTezTpOiAgekLkNX5/Yp+wI4ZJrog
 jSDBeNDNsO717kttTD0hzUmcrLYCoLtn/oRnGEUxheT4QEUz+De8h9ycFaJOMaRp
 sGs1y/Hv//4aj7XMSz3xmyhJ0GMsBmcmc5I/DIYpvHnHPvTHWU/+inTG/PhE3dKj
 euPLl6ofOaoEjy0W+Jgg
 =oLdU
 -----END PGP SIGNATURE-----

Merge tag 'pm+acpi-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI fixes from Rafael Wysocki:
 "These are four fixes for bugs in the devfreq and cpufreq subsystems,
  including two regression fixes (one for a recent regression and one
  for a problem introduced in 4.2).

  Specifics:

   - Two fixes for cpufreq regressions, an acpi-cpufreq driver one
     introduced during the 4.2 cycle when we started to preserve cpufreq
     directories for offline CPUs and a general one introduced recently
     (Srinivas Pandruvada).

   - Two devfreq fixes, one for a double kfree() in an error code path
     and one for a confusing sysfs-related failure (Geliang Tang, Tobias
     Jakobi)"

* tag 'pm+acpi-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: prevent lockup on reading scaling_available_frequencies
  cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus
  PM / devfreq: fix double kfree
  PM / devfreq: Fix governor_store()
2015-10-09 18:39:04 -07:00
Linus Torvalds
71419b7b84 Merge branch 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull strscpy powerpc fix from Chris Metcalf.

Fix powerpc big-endian build.

* 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/powerpc: provide zero_bytemask() for big-endian
2015-10-09 18:01:26 -07:00
Linus Torvalds
f4ba1cf8a4 sound fixes for 4.3-rc5
We see various small fixes, but nothing looks too scary, all are
 small gentle bug fixes:
 - Most of changes are for ASoC codecs: Realtek, SGTL5000, TAS2552,
   TLV320, WM8962
 - A couple of dwc and imx-ssi fixes
 - Usual oneliner HD-audio quirks
 - An old emux synth code fix
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJWF3nMAAoJEGwxgFQ9KSmklqgP/A9ShFKf/m/Swwtvzhn01GP7
 jBY5n4xvH7e9ThYmRpDQJ5XJX8TuKjWnyxeo/c1Ym3U8a8hgiEgJPp+eo98iEQ2s
 thK9Ie9p/AlEsThdvnPxHPSZoM5grx90fpG/m4CYlZJGfBcUYOSC9hnZnxKjdu7f
 mHto/T7Xj7um0rZLp0tqvp6vVktvefhMbRNC/LhCZhGbB5OFpNMwSbD3benGKIcj
 YIJiazEtfzTmqX4R5wNICX8mhEVQkBGTINKPIMTt5sMMClUuzAUNaGvZSXHSPlbB
 AkqHsT2GMagNv9uyz7dT2xTURHNrU3k3QBlPAE3Bufu1JEBHf4qYfwPvY3XM2+Jx
 79estFRhb+WpExLSkQsuycsSbLmRhTKstSwGF3u2Bg047BpF4tV0UwNizFO3cUU+
 sz18IfqxmWlbJCB6JdRFRzSD12mSaKPmrtcLHjQt3kvS8nD1qWLlBCy4lgx8oRPW
 tz0gEEp16gbVBhZQt9WsrL8Jbs995dJoR14t1Xjk81jK01kR01szfdCWR6mT9HH5
 lzuzpCnW4mVrDec+Eyh7P1P/BOGlWHievv1McV4vYfql+E+WB2KxBRrd7cqLaIen
 CRCm6knMmk/6lf8LaVVA5c4N/RkP3UmfMgMOBQgU038vqGVwSDzogvG/H21zMc4W
 HBfw9/7EVVTzM0YsFLsI
 =gld/
 -----END PGP SIGNATURE-----

Merge tag 'sound-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "We see various small fixes, but nothing looks too scary, all are small
  gentle bug fixes:

   - Most of changes are for ASoC codecs: Realtek, SGTL5000, TAS2552,
     TLV320, WM8962

   - A couple of dwc and imx-ssi fixes

   - Usual oneliner HD-audio quirks

   - An old emux synth code fix"

* tag 'sound-4.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  MAINTAINERS: Remove wm97xx entry
  ASoC: tas2552: fix dBscale-min declaration
  ALSA: synth: Fix conflicting OSS device registration on AWE32
  ALSA: hda - Disable power_save_node for IDT 92HD73xx chips
  ALSA: hda - Apply SPDIF pin ctl to MacBookPro 12,1
  ALSA: hda: Add dock support for ThinkPad T550
  ASoC: dwc: fix dma stop transferring issue
  ASoC: dwc: correct irq clear method
  ASoC: tlv320aic3x: Prevent writing reserved registers on tlv320aic3104 CODECs
  ASoC: rt5645: Correct the naming and setting of ADC Boost Volume Control
  ASoC: sgtl5000: fix wrong register MIC_BIAS_VOLTAGE setup on probe
  ASoC: wm8962: balance pm_runtime_enable
  ASoC: imx-ssi: Fix DAI hardware signal inversions
  ASoC: sgtl5000: fix error message output for MicBias voltage
  ASoC: db1200: Fix DAI link format for db1300 and db1550
2015-10-09 17:56:00 -07:00
Linus Torvalds
fe621fdead A Samsung driver fix and a handful of TI driver fixes.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABCAAGBQJWFt95AAoJENidgRMleOc96wwP/0EdcjbLOLjtcxNAIin5G1og
 kQfbYqzah1qRUGH2Dw5WKbn96bphHtdDUrRZ9bd4Prp9seyCzHZDzidSUsbl1YdG
 vwGWKbMrb5lVrsn3ADc7l7+S7reyhMNs1F2tkWL0SypGr0VMkq58pE1+h0OgxLKy
 +rJ2sdbC42EIEPRuqw98scl62jnAw6pjUjqVbKsgLc+Ed0PnniWtyL/k/C3/2Dok
 hBUxYx2Xpep7St0HkDS661fvc2E5os4EgJH4lgbgIr5dwnLDg4EaQoiEPpVvDZas
 IvZsXjhg+T1jLobufoqtOIBu9GvEUtF6FvqVbIrtsMdCr2CjfbSWhGmuhuHxqdQL
 ASYgAJ3FAiHVnfD7cDLPYvd9cIJFRw/8TbScXNVohGqlvn6SZrirgDEaeS9er4RI
 PIeM2lM+VsLfKrv062ZLfDn27+wwQ8EJqqNIy6ShOYMNMxHI6DK0HowaIlo/ZDK4
 SRe0S/iDb/xu2TScx79/f4PAZkFZj/7L5mA6ZvwoVploPVbFOTmJ6vud0J1UNuMz
 R/Ps58cbuP0dgub4BEBqDgY8k0mondT15cb3Y/Rh/ZqqNUBdRq8Prw0m0w2pnLp2
 DusFuFp/2T9Rgq0xn5c38kyuV287cKKmUJXYHtDAIyPdAdvia3GKan3bKSfAUEJF
 lpzQYbNgp4MCE7j2dSBy
 =M+T8
 -----END PGP SIGNATURE-----

Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A Samsung driver fix and a handful of TI driver fixes"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: ti: dflt: fix enable_reg validity check
  clk: ti: fix dual-registration of uart4_ick
  clk: ti: clk-7xx: Remove hardwired ABE clock configuration
  clk: samsung: fix cpu clock's flags checking
2015-10-09 17:33:15 -07:00
Linus Torvalds
8140e73614 MMC host:
- omap_hsmmc: Fix boot regressions for omap4430
  - omap_hsmmc: Fix legacy boot regression for omap3
  - sdhci-pxav3: Fix some clock issues for Armada 38x
  - sdhci-pxav3: Fix error handling at probe
  - sdhci-of-at91: Fix clock stabilization problem
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWF37YAAoJEP4mhCVzWIwpUWUP/1WszzAiRXZF3ATcD7hHOVWy
 iYpipJnTwlsrvNKdr+ar99LaLIgumy5v0K2ag8ilcD8eTCdg7TUjFawQn4Dg1mAZ
 T327D9SVxMTU5E9aqmYjRrSZ+9F1t04qUOBFL8v2AZx3C77y6Pahcy5rrftOxh+P
 npVQ4F4AnuXkHIAR69FX2iEZZxadb51b6VIj+4kqDHPI0BfRpR8fPxq4M8y+dXQr
 ZznRz+jOgLUTeoMd1D17xEzU6k0XbGBodDedUpf+3RJgzEZ7+BD+xQPbjPrFCLwq
 r4jt/LRnTK5g1f6y8n2zUZHiheITMvRZyJhSTezplL+zFEducdXJpvlkpfUMKvW3
 ZZtpQ8/CVUs0MjmcRHOWR+AHxczTTpB35DxgY5+SmR3YgclK2SZaSI935PnwBGVe
 IhQXZDbvfCLB9LdwZmplHi/ES5IxxtiUL1BMREgcjaYD7iiDNnnnSBANry9org1Q
 BruP7OJsDmLNFPz3HjPSItkXVpHfT//UdE/qwS3RoQ5UFBa2HWUTPwfAGDeLPpUs
 bry4vICWDCPAhxQ85vWk5TV9e2nEgVIGZ3/0PnDpBjbcfJfNQWqSA3WIAAfIuxWX
 QJL36GUTXeVKhcf91/s/ovhDa1mo6q87vMm2ZNOvCkAoiQ7Z4QXxG+ZhThChDaDC
 KPTGCAZCyvzDUS+b4M4X
 =h+WS
 -----END PGP SIGNATURE-----

Merge tag 'mmc-v4.3-rc4' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC host:
   - omap_hsmmc: Fix boot regressions for omap4430
   - omap_hsmmc: Fix legacy boot regression for omap3
   - sdhci-pxav3: Fix some clock issues for Armada 38x
   - sdhci-pxav3: Fix error handling at probe
   - sdhci-of-at91: Fix clock stabilization problem"

* tag 'mmc-v4.3-rc4' of git://git.linaro.org/people/ulf.hansson/mmc:
  mmc: sdhci-of-at91: use SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk
  mmc: sdhci: add quirk SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST
  mmc: sdhci-pxav3: fix error handling of armada_38x_quirks
  mmc: sdhci-pxav3: disable clock inversion for HS MMC cards
  mmc: sdhci-pxav3: remove broken clock base quirk for Armada 38x sdhci driver
  mmc: host: omap_hsmmc: Fix MMC for omap3 legacy booting
  Revert "mmc: host: omap_hsmmc: use regulator_is_enabled to find pbias status"
2015-10-09 17:25:26 -07:00
Linus Torvalds
0444555670 3 stable@ fixes:
- DM core AB-BA deadlock fix in the device destruction path (vs device
   creation's DM table swap).
 
 - DM raid fix to properly round up the region_size to the next
   power-of-2.
 
 - DM cache fix for a NULL pointer seen while switching from the
   "cleaner" cache policy.
 
 2 fixes for regressions introduced during the 4.3 merge:
 
 - request-based DM error propagation regressed due to incorrect
   changes introduced when adding the bi_error field to bio.
 
 - DM snapshot fix to only support snapshots that overflow if the client
   (e.g. lvm2) is prepared to deal with the associated snapshot status
   interface change.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJWGC/jAAoJEMUj8QotnQNaTgYIAJz1AG5IcHz8D3zi8+MBWXFL
 WAYrXfXSxexsymVKFsqi6z9fYiW5fRZ41/+Kl8/dYnhBIS8uUzWlad2qw/JFg+zC
 l/EzdHWjakzuGm9/quK2h/CBC/3pmRH9UeKgzOPODOpAzkJfrKoO4/J7JPIi3JyP
 esE/2F2TBwERL4oC74UB7/nuM/xckS/DRjbd3B82/IsfM5n+MARvuSSrqWcPEu8h
 Hh5k42KyA+Tq7uElLnXF8phFOCJCn9IyI+QLdxj33PfDxwrtXMvV6Sxw7FS8b7oF
 /gw3Dod4sEv+EJZ1A+O9mxGBk3ajCpMvUYbcY6owIHyB1mKWiSKyvyBPyIY6RiQ=
 =2z9t
 -----END PGP SIGNATURE-----

Merge tag 'dm-4.3-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull dm fixes from Mike Snitzer:
 "Three stable fixes:

   - DM core AB-BA deadlock fix in the device destruction path (vs
     device creation's DM table swap).

   - DM raid fix to properly round up the region_size to the next
     power-of-2.

   - DM cache fix for a NULL pointer seen while switching from the
     "cleaner" cache policy.

  Two fixes for regressions introduced during the 4.3 merge:

   - request-based DM error propagation regressed due to incorrect
     changes introduced when adding the bi_error field to bio.

   - DM snapshot fix to only support snapshots that overflow if the
     client (e.g. lvm2) is prepared to deal with the associated
     snapshot status interface change"

* tag 'dm-4.3-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm snapshot: add new persistent store option to support overflow
  dm cache: fix NULL pointer when switching from cleaner policy
  dm: fix request-based dm error reporting
  dm raid: fix round up of default region size
  dm: fix AB-BA deadlock in __dm_destroy()
2015-10-09 16:58:11 -07:00
Linus Torvalds
175d58cfed Merge branch 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "These are small and assorted.  Neil's is the oldest, I dropped the
  ball thinking he was going to send it in"

* 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: support NFSv2 export
  Btrfs: open_ctree: Fix possible memory leak
  Btrfs: fix deadlock when finalizing block group creation
  Btrfs: update fix for read corruption of compressed and shared extents
  Btrfs: send, fix corner case for reference overwrite detection
2015-10-09 16:39:35 -07:00
Linus Torvalds
38aa0a59a6 Just one RDMA bugfix.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWFW4mAAoJECebzXlCjuG+YQ8P/2cfPRV2QZHK0BxlHooM6WII
 ZyIOMYU9KHxtoolC7UWfTy6y+ohDzisByYS59Tpd9k0d2NWqtMgUTLHS1UbjcekF
 RBMkhqv8VLDMupiBVElaO4/FvSqhP4YTpB/YvFHn8K4i2+NnfwL4c707SlxAk2tA
 SKhvgZVIS/N+VYpQo5hFZ1RofTQ7zWsvzPEsAOJR0pbBhEFE0WemZ12nQwkdkmRI
 2/R5XbT0ngSpCBRo2OcUoCHTozJG90gVfsu8IGzs/QeqlYZ9dVxWOUh8WDP2gmDF
 iB/KrUnv+gsMg4pLKrN9pbBMi8o6zvrbe7IMNjZEhA7qqcEwgf94hViYgrGdIDlS
 pqWWf/YMYWZzT0K1U8DuqjzQyeuTjRNv7RkALBFi54kQC6T49PIDbJruerhVVdzZ
 sgmDB/4kaSJF8yutetuRogskC+E7BaqhnAqu+VDin0UCFMl2GUb+3yof7GawbQcD
 uhPNMhn94LI6zXEzd86dKCc2ZwwNRfJYpfy5gYUmRHSHllZUSQdCqT4s3oIa4eFB
 RNqd0/AulHNgRJuXX/wMPZh5IWr9AnLp1WfJXRbY6hu5Q8+btsFG1wEBuQr3USTZ
 D5yJexpVQRNSmPWllLwfXkGFY4tiJA/TNDZxwrgocamnvxdrRw82HoFNvpRKVFEn
 AZFB4UR4JbqCe4LmBV/r
 =Jent
 -----END PGP SIGNATURE-----

Merge tag 'nfsd-4.3-1' of git://linux-nfs.org/~bfields/linux

Pull nfsd bugfix from Bruce Fields:
 "Just one RDMA bugfix"

* tag 'nfsd-4.3-1' of git://linux-nfs.org/~bfields/linux:
  svcrdma: handle rdma read with a non-zero initial page offset
2015-10-09 16:34:45 -07:00
Linus Torvalds
5163ac7637 ARM: SoC fixes for 4.3-rc4
The fixes for this week include one small patch that was years in the
 making and that finally fixes using all eight CPUs on exynos542x.
 
 The rest are lots of minor changes for sunxi, imx, exynos and shmobile
 
 * fixing the minimum voltage for Allwinner A20
 * thermal boot issue on SMDK5250.
 * invalid clock used for FIMD IOMMU.
 * audio on Renesas r8a7790/r8a7791
 * invalid clock used for FIMD IOMMU
 * LEDs on exynos5422-odroidxu3-common
 * usb pin control for imx-rex
 * imx53: fix PMIC interrupt level
 * a Makefile typo
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIVAwUAVhbS1GCrR//JCVInAQLwiQ/+LeAAqODQKpLI9BhKSSa1YiPgs8zr/O+q
 6SpyNf969j2d67hhDbBNIrcNw7bdYElogq+2emrPnsJ/o/GX18VFs+41s+zb2P1r
 dxmH9LA7wrUg05nc/TgyYXJZQa+JIZBymYJ6Kc9cdbkhmRZazAcV6POT4ZG5qfER
 QDwPGwBn/wXLMZ0yJnocUVexTn+GUdy0b7XRg141PYtYHg+mA0EEPHqul1IyB/rV
 W5u9HoA86mWLH+8CEzl7RTCXEPga/+ScxqimDFMW7Ok6F+CkPnD7u5z92p8dU38T
 J0Dc/xSA9w+8Y4AQuN1qM7g5W/qNszozaBusshIMF+UK5dDEEwWpdpvRr4mLpqLS
 hohu7zUel3V5n846Rwkr181Hh9yn5V7MiJ0vjj5gYmYeteLs5Gar94I/vnd9BMrD
 7lJo0aTMcoQNIvf2i1SEfyhQW/YOdWiU452sxtzNFe/wJ/6hdQxx/qgBMA1Dxm7/
 s1+bQ3ndBa5qiiTcVg5XBAGnxe5Eo7lqHStDyJ6hy3v8nt5ew1iPbBt8XEwHonDC
 8whzRKQMI70hz5nQoMLjEwiGhT3yFQu2IyrFD2yPldq2i4VC2iZybWianKa5BXlu
 16Easzhk05uZu340+tqCxxGwTaVSjNcJ+HRHRvW4cw6sReCeUPOtlnzlOGRufZpO
 pi2gCB3aTnY=
 =IsHY
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "The fixes for this week include one small patch that was years in the
  making and that finally fixes using all eight CPUs on exynos542x.

  The rest are lots of minor changes for sunxi, imx, exynos and shmobile

   - fixing the minimum voltage for Allwinner A20
   - thermal boot issue on SMDK5250.
   - invalid clock used for FIMD IOMMU.
   - audio on Renesas r8a7790/r8a7791
   - invalid clock used for FIMD IOMMU
   - LEDs on exynos5422-odroidxu3-common
   - usb pin control for imx-rex
   - imx53: fix PMIC interrupt level
   - a Makefile typo"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: Fix wrong clock binding for sysmmu_fimd1_1 on exynos5420
  ARM: dts: Fix bootup thermal issue on smdk5250
  ARM: shmobile: r8a7791 dtsi: Add CPG/MSTP Clock Domain for sound
  ARM: shmobile: r8a7790 dtsi: Add CPG/MSTP Clock Domain for sound
  arm-cci500: Don't enable PMU driver by default
  ARM: dts: fix usb pin control for imx-rex dts
  ARM: imx53: qsrb: fix PMIC interrupt level
  ARM: imx53: include IRQ dt-bindings header
  ARM: dts: add suspend opp to exynos4412
  ARM: dts: Fix LEDs on exynos5422-odroidxu3
  ARM: EXYNOS: reset Little cores when cpu is up
  ARM: dts: Fix Makefile target for sun4i-a10-itead-iteaduino-plus
  ARM: dts: sunxi: Raise minimum CPU voltage for sun7i-a20 to meet SoC specifications
2015-10-09 15:54:14 -07:00
Mike Snitzer
b0d3cc011e dm snapshot: add new persistent store option to support overflow
Commit 76c44f6d80 introduced the possibly for "Overflow" to be reported
by the snapshot device's status.  Older userspace (e.g. lvm2) does not
handle the "Overflow" status response.

Fix this incompatibility by requiring newer userspace code, that can
cope with "Overflow", request the persistent store with overflow support
by using "PO" (Persistent with Overflow) for the snapshot store type.

Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
Fixes: 76c44f6d80 ("dm snapshot: don't invalidate on-disk image on snapshot write overflow")
Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-10-09 16:57:03 -04:00
Rafael J. Wysocki
670aee3fc7 Merge branches 'pm-devfreq' and 'pm-cpufreq'
* pm-devfreq:
  PM / devfreq: fix double kfree
  PM / devfreq: Fix governor_store()

* pm-cpufreq:
  cpufreq: prevent lockup on reading scaling_available_frequencies
  cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus
2015-10-09 22:13:30 +02:00
Joe Thornber
2bffa1503c dm cache: fix NULL pointer when switching from cleaner policy
The cleaner policy doesn't make use of the per cache block hint space in
the metadata (unlike the other policies).  When switching from the
cleaner policy to mq or smq a NULL pointer crash (in dm_tm_new_block)
was observed.  The crash was caused by bugs in dm-cache-metadata.c
when trying to skip creation of the hint btree.

The minimal fix is to change hint size for the cleaner policy to 4 bytes
(only hint size supported).

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
2015-10-09 09:16:29 -04:00
Mikulas Patocka
a452744bcb crash in md-raid1 and md-raid10 due to incorrect list manipulation
The commit 55ce74d4bf (md/raid1: ensure
device failure recorded before write request returns) is causing crash in
the LVM2 testsuite test shell/lvchange-raid.sh. For me the crash is 100%
reproducible.

The reason for the crash is that the newly added code in raid1d moves the
list from conf->bio_end_io_list to tmp, then tests if tmp is non-empty and
then incorrectly pops the bio from conf->bio_end_io_list (which is empty
because the list was alrady moved).

Raid-10 has a similar bug.

Kernel Fault: Code=15 regs=000000006ccb8640 (Addr=0000000100000000)
CPU: 3 PID: 1930 Comm: mdX_raid1 Not tainted 4.2.0-rc5-bisect+ #35
task: 000000006cc1f258 ti: 000000006ccb8000 task.ti: 000000006ccb8000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111000001111 Not tainted
r00-03  000000ff0804fe0f 000000001059d000 000000001059f818 000000007f16be38
r04-07  000000001059d000 000000007f16be08 0000000000200200 0000000000000001
r08-11  000000006ccb8260 000000007b7934d0 0000000000000001 0000000000000000
r12-15  000000004056f320 0000000000000000 0000000000013dd0 0000000000000000
r16-19  00000000f0d00ae0 0000000000000000 0000000000000000 0000000000000001
r20-23  000000000800000f 0000000042200390 0000000000000000 0000000000000000
r24-27  0000000000000001 000000000800000f 000000007f16be08 000000001059d000
r28-31  0000000100000000 000000006ccb8560 000000006ccb8640 0000000000000000
sr00-03  0000000000249800 0000000000000000 0000000000000000 0000000000249800
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000

IASQ: 0000000000000000 0000000000000000 IAOQ: 000000001059f61c 000000001059f620
 IIR: 0f8010c6    ISR: 0000000000000000  IOR: 0000000100000000
 CPU:        3   CR30: 000000006ccb8000 CR31: 0000000000000000
 ORIG_R28: 000000001059d000
 IAOQ[0]: call_bio_endio+0x34/0x1a8 [raid1]
 IAOQ[1]: call_bio_endio+0x38/0x1a8 [raid1]
 RP(r2): raid_end_bio_io+0x88/0x168 [raid1]
Backtrace:
 [<000000001059f818>] raid_end_bio_io+0x88/0x168 [raid1]
 [<00000000105a4f64>] raid1d+0x144/0x1640 [raid1]
 [<000000004017fd5c>] kthread+0x144/0x160

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: 55ce74d4bf ("md/raid1: ensure device failure recorded before write request returns.")
Fixes: 95af587e95 ("md/raid10: ensure device failure recorded before write request returns.")
Signed-off-by: NeilBrown <neilb@suse.com>
2015-10-09 08:33:46 +11:00
Srinivas Pandruvada
55582bccdc cpufreq: prevent lockup on reading scaling_available_frequencies
When scaling_available_frequencies is read on an offlined cpu, then
either lockup or junk values are displayed. This is caused by
freed freq_table, which policy is using.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-10-08 21:47:56 +02:00
Srinivas Pandruvada
e25303676e cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus
When freqdomain_cpus attribute is read from an offlined cpu, it will
cause crash. This change prevents calling cpufreq_show_cpus when
policy driver_data is NULL.

Crash info:

[  170.814949] BUG: unable to handle kernel NULL pointer dereference at 0000000000000018
[  170.814990] IP: [<ffffffff813b2490>] _find_next_bit.part.0+0x10/0x70
[  170.815021] PGD 227d30067 PUD 229e56067 PMD 0
[  170.815043] Oops: 0000 [#2] SMP
[  170.816022] CPU: 3 PID: 3121 Comm: cat Tainted: G      D    OE   4.3.0-rc3+ #33
...
...
[  170.816657] Call Trace:
[  170.816672]  [<ffffffff813b2505>] ? find_next_bit+0x15/0x20
[  170.816696]  [<ffffffff8160e47c>] cpufreq_show_cpus+0x5c/0xd0
[  170.816722]  [<ffffffffa031a409>] show_freqdomain_cpus+0x19/0x20 [acpi_cpufreq]
[  170.816749]  [<ffffffff8160e65b>] show+0x3b/0x60
[  170.816769]  [<ffffffff8129b31c>] sysfs_kf_seq_show+0xbc/0x130
[  170.816793]  [<ffffffff81299be3>] kernfs_seq_show+0x23/0x30
[  170.816816]  [<ffffffff81240f2c>] seq_read+0xec/0x390
[  170.816837]  [<ffffffff8129a64a>] kernfs_fop_read+0x10a/0x160
[  170.816861]  [<ffffffff8121d9b7>] __vfs_read+0x37/0x100
[  170.816883]  [<ffffffff813217c0>] ? security_file_permission+0xa0/0xc0
[  170.816909]  [<ffffffff8121e2e3>] vfs_read+0x83/0x130
[  170.816930]  [<ffffffff8121f035>] SyS_read+0x55/0xc0
...
...
[  170.817185] ---[ end trace bc6eadf82b2b965a ]---

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.2+ <stable@vger.kernel.org> # 4.2+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-10-08 21:47:13 +02:00
ludovic.desroches@atmel.com
88c6eb0e3b mmc: sdhci-of-at91: use SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk
The Atmel sdhci device needs the
SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk. Without it, the
internal clock could never stabilised when changing the sd clock
frequency.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08 19:55:05 +02:00
ludovic.desroches@atmel.com
af951761d0 mmc: sdhci: add quirk SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST
The Atmel sdhci device needs a new quirk. sdhci_set_clock set the Clock
Control Register to 0 before computing the new value and writing it.
It disables the internal clock which causes a reset mecanism. If we
write the new value before this reset mecanism is done, it will prevent
the stabilisation of the internal clock, so a delay is needed. This
delay is about 2-3 cycles of the base clock. To be safe, a 1 ms delay is
used.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08 19:55:05 +02:00
Marcin Wojtas
2162d9f41e mmc: sdhci-pxav3: fix error handling of armada_38x_quirks
In case of armada_38x_quirks error, all clocks should be cleaned-up, same
as after mv_conf_mbus_windows failure.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Cc: <stable@vger.kernel.org> # v4.2
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08 19:24:23 +02:00
Nadav Haklai
fa7964147d mmc: sdhci-pxav3: disable clock inversion for HS MMC cards
According to 'FE-2946959' erratum the clock inversion option is
needed to support slow frequencies when the card input hold time
requirement is high. This setting is not required for high speed
MMC and might cause timing violation.

Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Cc: <stable@vger.kernel.org> # v4.2
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08 19:24:23 +02:00
Nadav Haklai
5de76bfcb1 mmc: sdhci-pxav3: remove broken clock base quirk for Armada 38x sdhci driver
shci-pxav3 driver is enabling by default the
SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN quirk. However this quirk is not
required for Armada 38x and leads to wrong clock setting in the divider.

Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Cc: <stable@vger.kernel.org> # v4.2
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08 19:24:23 +02:00
Chris Metcalf
7a5692e6e5 arch/powerpc: provide zero_bytemask() for big-endian
For some reason, only the little-endian flavor of
powerpc provided the zero_bytemask() implementation.

Reported-by: Michal Sojka <sojkam1@fel.cvut.cz>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
2015-10-08 11:44:12 -04:00
Tony Lindgren
123e20b145 mmc: host: omap_hsmmc: Fix MMC for omap3 legacy booting
Starting with commit 7d607f9170 ("mmc: host: omap_hsmmc: use
devm_regulator_get_optional() for vmmc") MMC on omap3 stopped working
for legacy booting.

This is because legacy booting sets up some of the resource in the
platform init code, and for optional regulators always seem to
return -EPROBE_DEFER for the legacy booting.

Let's fix the issue by checking for device tree based booting for
now. Then when omap3 boots in device tree only mode, this patch
can be just reverted.

Fixes: 7d607f9170 ("mmc: host: omap_hsmmc: use
devm_regulator_get_optional() for vmmc")
Cc: Felipe Balbi <balbi@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08 09:36:13 +02:00
Tony Lindgren
bb2726b52f Revert "mmc: host: omap_hsmmc: use regulator_is_enabled to find pbias status"
This reverts commit c55d7a0553.

Without reverting this commit we get "unbalanced disables for pbias_mmc_omap4"
errors on omap4430. It seems that 4430 and 4460 behave in a different way for
the PBIAS regulator registers and until that has been debugged further we
cannot rely on the regulator status registers in hardare on 4430.

Fixes: 7d607f9170 ("mmc: host: omap_hsmmc: use
devm_regulator_get_optional() for vmmc")
Cc: Felipe Balbi <balbi@ti.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-10-08 09:35:31 +02:00
Christian Melki
9d99c7123c swiotlb: Enable it under x86 PAE
Most distributions end up enabling SWIOTLB already with 32-bit
kernels due to the combination of CONFIG_HYPERVISOR_GUEST|CONFIG_XEN=y
as those end up requiring the SWIOTLB.

However for those that are not interested in virtualization and
run in 32-bit they will discover that: "32-bit PAE 4.2.0 kernel
(no IOMMU code) would hang when writing to my USB disk. The kernel
spews million(-ish messages per sec) to syslog, effectively
"hanging" userspace with my kernel.

Oct  2 14:33:06 voodoochild kernel: [  223.287447] nommu_map_sg:
overflow 25dcac000+1024 of device mask ffffffff
Oct  2 14:33:06 voodoochild kernel: [  223.287448] nommu_map_sg:
overflow 25dcac000+1024 of device mask ffffffff
Oct  2 14:33:06 voodoochild kernel: [  223.287449] nommu_map_sg:
overflow 25dcac000+1024 of device mask ffffffff
... etc ..."

Enabling it makes the problem go away.

N.B. With a6dfa128ce
"config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected"
we also have the important part of the SG macros enabled to make this
work properly - in case anybody wants to backport this patch.

Reported-and-Tested-by: Christian Melki <christian.melki@t2data.com>
Signed-off-by: Christian Melki <christian.melki@t2data.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2015-10-07 15:31:35 -04:00
Takashi Iwai
601d62959d ASoC: Fixes for v4.3
Quite a few fixes here but they're all very small and driver specific,
 none of them really stand out if you aren't using the relevant hardware
 but they're all useful if you do happen to have an affected device.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJWFTcnAAoJECTWi3JdVIfQATYH+wSTTl5PecusiHmrb3kS08V7
 Ka7EgqP+PyPRh4QxqxA+fBQJOcbiD42I1FzYyj16INmaDP10AE2fNc/Q1xSmFVRd
 6iJl7mKlJqNgYmORWFynlrnrPVipJIBmS5SXt9z3GeRo6jhJk5G3UiJkA+WkKzDN
 r+3ASeEdZHeLKj5zeAPsY0KTMOaBskpSVFer5g7kQE5+naYFOzXJ4NsivjML2cge
 TH/8Ef22oJi8FNtfFCnz8hTMKFo0mnBYbjmZZcwhj0/Ne0yeJhE0VOaZroaS2Ec2
 VjvKcA5pWPAAbsZtjO1A2x35V3oy5T4N8HsiQfvuJ5+6rSNpsJ2V8qXCSl7RTCw=
 =4n+5
 -----END PGP SIGNATURE-----

Merge tag 'asoc-fix-v4.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v4.3

Quite a few fixes here but they're all very small and driver specific,
none of them really stand out if you aren't using the relevant hardware
but they're all useful if you do happen to have an affected device.
2015-10-07 20:11:21 +02:00
Linus Torvalds
c6fa8e6de3 arm64 fixes for 4.3-rc5
- A couple of locking fixes for RT kernels
 - Avoid printing bogus initrd warnings when initrd isn't present
 - Performance fix for random mmap file readahead
 - Typo fix
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABCgAGBQJWFO+aAAoJELescNyEwWM0z14IALpleyenZXl+xqxMjNyOXouG
 /2SbTZH7iD/vnfCL6G7/Poq00I2ghtBSRFGXajfg7V0mjH1HTfVXVN19IXaUUwjW
 IfAMqSyC43dDBdsGn3A1ZqPRNk+chxjwz7zimGqPowuM87C4aj/sqetBSnuybZtB
 lSYfCFGpDj8cpsJ0xwYYhuq8xUgixQMslTj+rVAFtfsLkDHUu175l+vP7t2xOv5v
 bmyPlz15O/v9febnLYFVFPWZB2IWfvaFkR30qUGsMe6BGWdGDe/RGUPksZDLlPdL
 Yj4AKq+9Bx0lPvO+vNEqfvScKdVjMpttVEMfi2cQ8kUbD1rRPZ7ZTHsfcEOuB1w=
 =Zi+I
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "This addresses a couple of issues found with RT, a broken initrd
  message in the console log and a simple performance fix for some MMC
  workloads.

  Summary:

   - A couple of locking fixes for RT kernels
   - Avoid printing bogus initrd warnings when initrd isn't present
   - Performance fix for random mmap file readahead
   - Typo fix"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: replace read_lock to rcu lock in call_break_hook
  arm64: Don't relocate non-existent initrd
  arm64: convert patch_lock to raw lock
  arm64: readahead: fault retry breaks mmap file read random detection
  arm64: debug: Fix typo in debug-monitors.c
2015-10-07 18:17:46 +01:00
Linus Torvalds
e82fa92e62 fbdev fixes for v4.3
* fbdev: Minor fixes to broadsheetfb, fsl-diu-fb, mb862xxfb, tridentfb, omapfb
 * display-timing: Fix memory leak in error path
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWFQlvAAoJEPo9qoy8lh711iYQAK4tBVPRPRPgNFkCWfeqaRvd
 UvJcLrsVddmwFqQj+CW+PxHWqhFEcSRFaaJmWirBAtumGCAYxy2BeFjY6H32JzvK
 tFVIwt1GuaO+89d3xq6AuvamiH9X4pPuu/bVfIWAP4hfpKsuKAQ+UtdPHRsRTkBe
 2PVKLc4ghxPMnp0XdcDYRmJ0RrejctISmmelScc6waqhRC8+bnEcVZB5CP/N8iM9
 +PvoxmS2e7Cn6ZxMMqSrEsFwpqtxuUhzrIEVrcbfAnymp37uiKai76FJe1JEev3T
 gXnqXAsfMbdNjtVpHQVeb3B43ZsslEruXOQZHyhW9CH2+7QgOsVfE9PDyIEDxM+9
 UZH8jLwh0EhLhnfBMBmeUmy9mQXXUhyQ5qBXJ4ubBc304tS/2LnVvh507WbzKEhY
 2gk0ZmqsSzpn1+NoZ0HEkZM1toG7sWEo/KuYehyifzNrPikG6jzPqbdF64ZED5Ev
 mS+fOfIus4vCXX/7cf4waDXzOhlZl+arAEOM1+FK9bE80JPZnK1xZQain7wrPSHR
 uaM5AAtbPSVj3w5lk1ntY7ck/2R+DRKjwVGr8Qm7EdWnE5LQcUrS619q77Y9NJ7r
 sqnfMToKarqAnfcU/4sQ2ObV8nfhsZQimeffOBVRnbMlRIo7aD+d+n4WXAICNvH+
 3A/vqTo/pbWL9TBXce/E
 =hZoA
 -----END PGP SIGNATURE-----

Merge tag 'fbdev-fixes-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev fixes from Tomi Valkeinen:

 - fbdev: Minor fixes to broadsheetfb, fsl-diu-fb, mb862xxfb, tridentfb,
   omapfb

 - display-timing: Fix memory leak in error path

* tag 'fbdev-fixes-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  video: of: fix memory leak
  fbdev: broadsheetfb: fix memory leak
  OMAPDSS: panel-sony-acx565akm: Export OF module alias information
  fbdev: omap2: connector-dvi: use of_get_i2c_adapter_by_node interface
  tridentfb: Fix set_lwidth on TGUI9440 and CYBER9320
  tridentfb: fix hang on Blade3D with CONFIG_CC_OPTIMIZE_FOR_SIZE
  video: fbdev: mb862xx: Fix module autoload for OF platform driver
  video: fbdev: fsl: Fix the sleep function for FSL DIU module
2015-10-07 18:05:09 +01:00
Mark Brown
e4fc141d2a Merge remote-tracking branches 'asoc/fix/tlv320aic3x' and 'asoc/fix/wm8962' into asoc-linus 2015-10-07 16:07:50 +01:00
Mark Brown
1e2fa4cfdb Merge remote-tracking branches 'asoc/fix/db1200', 'asoc/fix/dwc', 'asoc/fix/imx-ssi', 'asoc/fix/maintainers', 'asoc/fix/rt5645', 'asoc/fix/sgtl5000' and 'asoc/fix/tas2552' into asoc-linus 2015-10-07 16:07:16 +01:00
Linus Torvalds
8ace60f8b7 regmap: Fixes for v4.3
A couple of fixes for the debugfs information on the register map,
 fixing issues with very small reads potentially causing underflows and
 wraparounds.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJWFPtTAAoJECTWi3JdVIfQlRUH/1j/cFl0+eDBnjQjg25+bMOn
 HhGQtxcGlOXIwDzRc7vCzuH8RjqJnY6jLlYzAjbYiIEoRAHVOEtWZCeSMN8bTfaK
 lUe2XN6TLrAweJYP+LC+NoIXKzW4jUDXG3ZqhkRllsnn9eoLsIFBxBV+E5jS4LNo
 8AFMfdlzbKaEIrAu9w6c5pHmgwacyXETOKej+GuJ/RP6a5SRPAS1FWCznLc8gY7n
 NBh+vMeYdtRV57PpXxVa/sAFjqkglwXhf4C7Gkhcv5Ecu4utf5LqL3w9i5Al5Rmz
 5DxO3JaFdK4ae74wdo8iCFddXJBu+TiB9UB6mvhrZ63W8ECw3xjcE4PcYuL3BN0=
 =QeA5
 -----END PGP SIGNATURE-----

Merge tag 'regmap-fix-v4.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fixes from Mark Brown:
 "A couple of fixes for the debugfs information on the register map,
  fixing issues with very small reads potentially causing underflows and
  wraparounds"

* tag 'regmap-fix-v4.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: debugfs: Don't bother actually printing when calculating max length
  regmap: debugfs: Ensure we don't underflow when printing access masks
2015-10-07 14:15:49 +01:00
Linus Torvalds
07443cecdf spi: Fixes for v4.3
A couple of very minor fixes, one for error handling in the Davinci
 driver probe function and another making the Renesas sh-msiof DT binding
 documentation correspond to what's actually implemented.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJWFPjZAAoJECTWi3JdVIfQvWcH/0aOEA6dcgurWr4IlWpI9vS0
 ueMrT3CEDwyJOhkizxMTQSDs7K01OGOag1Dq6nZm2k38niFD7CeUU6iNXZrKoTXf
 TSBiqgRitZ5HnpYJhYz/HP8HTktAZVuFaTD2IpSX6+gqiTinIYKVX4MrnZmIcRjR
 uGXosAd2n3552hXjcDVOuRlmvjmd30wP96/hc0/24yfrehEcBoksM4dgnpMDC5d4
 OQaP6Y8ZXkqeYYrL+xN4i6w9wwTdt+Io+7cYZoRVKJ3+CB9jHAnONRJzTPqRWEDz
 vhOA2/fHmvLierP1JySz1CZzYdVekVpPYsobmsYHKddoLXBLvlaYWJajj1kTMlc=
 =RMP1
 -----END PGP SIGNATURE-----

Merge tag 'spi-fix-v4.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A couple of very minor fixes, one for error handling in the Davinci
  driver probe function and another making the Renesas sh-msiof DT
  binding documentation correspond to what's actually implemented"

* tag 'spi-fix-v4.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: sh-msiof: Match renesas,rx-fifo-size in DT bindings doc with driver
  spi: davinci: fix handling platform_get_irq result
2015-10-07 14:13:10 +01:00
Linus Torvalds
21f3c96188 regulator: Fixes for v4.3
Two fixes here, one device specific fix for axp20x and a core fix for
 cases where one regulator is supplying another which broke probe
 deferral, substituting in a dummy regulator too aggressively.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJWFO2YAAoJECTWi3JdVIfQl6YH/iBuGvFaDNJn6qBI1/qae9KO
 HQYWda7fVKB8l/4aotV4tfzW0ikIDMeIzSzvekpZK6SKgVnKAr3dzKLL3tkDT9IE
 tl5ibs5nJOynGk30liVSALfUFU2IPqV0ikNQxbhBq13mIR9YJinFuow8kcCAWoSj
 BJUIE/cp6fHoDXWMqJDETCBtwERBmU7VZ6WWhaZZKTrmMzM0zdfNyjisrOTx+Npm
 k2+4zAs8ep7MCn0Q9V4Q+DdNOq3zZPcMjx6yMLZt71pJBiG+TP/wK89AIAq7vyjk
 y5qUqdFBN/4cvtmLCLI4F9lThSBgRHLSl1NOJc9TWQgu/xT8YEmK2xqE9J+cyLQ=
 =xZTQ
 -----END PGP SIGNATURE-----

Merge tag 'regulator-fix-v4.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "Two fixes here, one device specific fix for axp20x and a core fix for
   cases where one regulator is supplying another which broke probe
  deferral, substituting in a dummy regulator too aggressively"

* tag 'regulator-fix-v4.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: core: Handle probe deferral from DT when resolving supplies
  regulator: axp20x: Fix enable bit indexes for DCDC4 and DCDC5
2015-10-07 14:11:47 +01:00
Sudip Mukherjee
d663baba8b video: of: fix memory leak
If of_parse_display_timing() fails we are printing an error message and
jumping to the error path but we missed freeing "dt".

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-10-07 14:13:59 +03:00
Mark Brown
c2c80bdb9e Merge remote-tracking branches 'spi/fix/davinci' and 'spi/fix/sh-msiof' into spi-linus 2015-10-07 11:43:39 +01:00
Linus Torvalds
79c7c7acd2 Merge branch 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull strscpy fixes from Chris Metcalf :
 "This patch series fixes up a couple of architecture issues where
  strscpy wasn't configured correctly (missing on h8300, duplicating
  local and asm-generic copies on powerpc and tile).

  It also adds a use of zero_bytemask() to the final store for strscpy
  to avoid writing uninitialized data to the destination.  However, to
  make this work we had to add support for zero_bytemask() to the two
  architectures that didn't have it (alpha and tile), because they were
  providing their own local copies, but didn't provide the
  zero_bytemask() that was previously only required when building with
  CONFIG_DCACHE_WORD_ACCESS"

[ Side note: there is still no actual users of strscpy except for the
  one preexisting use in arch/tile that predates the generic version.
  So this is all about fixing the infrastructure so that we eventually
  can start using it.  - Linus ]

* 'strscpy' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  strscpy: zero any trailing garbage bytes in the destination
  word-at-a-time.h: support zero_bytemask() on alpha and tile
  word-at-a-time.h: fix some Kbuild files
2015-10-07 09:52:42 +01:00
Linus Torvalds
3f5e4a3116 A few MTD fixes:
* mxc_nand: a "refactoring only" change in 4.3-rc1 had some bad pointer
    (array) arithmetic. Fix that
 
  * sunxi_nand:
 
    - Fix an old list manipulation / memory management bug in the device
      release() code path
 
    - Correct a few mistakes in OOB write support
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJWFALTAAoJEFySrpd9RFgt6gIP/in7Zl3mpVZi3D36ui6+EIiF
 cHSLItczBtUg5JrE3gm7RzXsOI8CE/ExvN0Yqc1uHM5EDHZWHWIKlRxdD9CrhIv8
 srM2icbG4AJBeiizCuufok3/nOMjt5azHX6RdDA2BClYP2T5GH/CthJabfTHRpqb
 yhDs7WRAbS7jPhmLe0rl3yTBnMnY798bzzo7VQD0g95lgOU4K2Wj78NyuMx5NSsK
 l8mH0GuNne7cHCh1z4HSiSzSyJQoTnjhd8sA1B/39t/V89EHm87P7iYN4NQ7zayK
 vq9GEOrm1/jVDCPxGihJkt3jkt4QmnQeU8z+Ne42muySvvP+eXpihfX/xSstBYQl
 QsTX/odoU7UpBwy9gd3dO/2o5s/+/E16VtEKEWJfExVaRHwhSmrBY/aSAnzGMomh
 JSwOkgI5r/hToDB+sQ9/MANwQ1kq1gZIIzaANkdK+rm0x0HuVh3ODZYC3xBexgdf
 5FVAaLhxMQaFhGv7JGgL5aPZAZzboUn0awmMBdiH5JWA5hCuCEUkyN6ggcTqvJlM
 wxS4lkofpnEfTVNiOjitS+nPnXj8Vn3OB5fKUoPe0u33GZuJraq+OW6gCgSZtSWp
 +cOxC1WiREOkxei6+MiR5eOF2kU4uZUGjUeZeNs1QdXUNkSTX66DtmT/ep6WrtVi
 aDI1fczLhpi966uI05gw
 =A7qE
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-20151006' of git://git.infradead.org/linux-mtd

Pull MTD fixes from Brian Norris:
 "A few MTD fixes:

   - mxc_nand: a "refactoring only" change in 4.3-rc1 had some bad
     pointer (array) arithmetic.  Fix that

   - sunxi_nand:

   - Fix an old list manipulation / memory management bug in the device
     release() code path

   - Correct a few mistakes in OOB write support"

* tag 'for-linus-20151006' of git://git.infradead.org/linux-mtd:
  mxc_nand: fix copy_spare
  mtd: nand: sunxi: fix sunxi_nand_chips_cleanup()
  mtd: nand: sunxi: fix OOB handling in ->write_xxx() functions
2015-10-07 09:35:15 +01:00
Linus Torvalds
a0eeb8dd34 NFS client bugfixes for Linux 4.3
Highlights include:
 
 Bugfixes:
 - Fix a use-after-free bug in the RPC/RDMA client
 - Fix a write performance regression
 - Fix up page writeback accounting
 - Don't try to reclaim unused state owners
 - Fix a NFSv4 nograce recovery hang
 - reset states to use open_stateid when returning delegation voluntarily
 - Fix a tracepoint NULL-pointer dereference
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJWFIgBAAoJEGcL54qWCgDy3qwQAJrMvwiO0shZe9+PsUZcDIhw
 1CnDmWYafJmpNGK+YEZatI+tdR9pwSYXdfiCGj/Ijfvl1PXUgyVAmNARAB9oFUza
 DVvZjqJ6aiFzeawGC8f2IfwY4XcAy4+BIZOiwp2JafepRnoSgZl24olKbO4cQ7UD
 i5IaDrYYvAxefsUoRogEF19H1y8zC1yUA2aDKrriV6A9rEZSbaZLRfS8BHppXBjY
 w0OP74neD4rnn/rL0YDEdsjiI17W7QwoMk05yzOJH3wQt/Y4Ll/lwLO4y3URpIGF
 wzHzMIeggGPPEM9e1JixPc3Y9F9kCHW8YjGJ3xxY2C6q8vt7dzpaVhh10AxycZtZ
 gcbepjMhoL7gJqu5DQ/0S86Sb5jNaL0KlUDsEnqtOfe3/UiyTJ/f57TMfdscm+wI
 pdyFFtxUHcFueO1a2XuEOuSIUFzFuwIQ2aiHlbu90ev04dd7dqzU0PffhRlzu3tJ
 8+ZHQMbSmotUmhxlpI+VA4rG0JUsaLY09chH5r0NvsXm0LR+z3vX7Q6oONN7IBDv
 5hULj4ecB69smBv+FjQyVUAu0LiahINAGu0p0wEjTdBwFMic5qpVVfhTs8qrkGRZ
 M8RYrANtVhY17fJf5WF7Wyt58icAWRKDHslGdzUav+2VFBfNK1ZeG+QhYYqDNF5k
 SkJsG4iCIN9JazwqfqJI
 =aoNS
 -----END PGP SIGNATURE-----

Merge tag 'nfs-for-4.3-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

  Bugfixes:
   - Fix a use-after-free bug in the RPC/RDMA client
   - Fix a write performance regression
   - Fix up page writeback accounting
   - Don't try to reclaim unused state owners
   - Fix a NFSv4 nograce recovery hang
   - reset states to use open_stateid when returning delegation
     voluntarily
   - Fix a tracepoint NULL-pointer dereference"

* tag 'nfs-for-4.3-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Fix a tracepoint NULL-pointer dereference
  nfs4: reset states to use open_stateid when returning delegation voluntarily
  NFSv4: Fix a nograce recovery hang
  NFSv4.1: nfs4_opendata_check_deleg needs to handle NFS4_OPEN_CLAIM_DELEG_CUR_FH
  NFSv4: Don't try to reclaim unused state owners
  NFS: Fix a write performance regression
  NFS: Fix up page writeback accounting
  xprtrdma: disconnect and flush cqs before freeing buffers
2015-10-07 08:54:22 +01:00
Linus Torvalds
00a3d660cb Revert "fs: do not prefault sys_write() user buffer pages"
This reverts commit 998ef75ddb.

The commit itself does not appear to be buggy per se, but it is exposing
a bug in ext4 (and Ted thinks ext3 too, but we solved that by getting
rid of it).  It's too late in the release cycle to really worry about
this, even if Dave Hansen has a patch that may actually fix the
underlying ext4 problem.  We can (and should) revisit this for the next
release.

The problem is that moving the prefaulting later now exposes a special
case with partially successful writes that isn't handled correctly.  And
the prefaulting likely isn't normally even that much of a performance
issue - it looks like at least one reason Dave saw this in his
performance tests is that he also ran them on Skylake that now supports
the new SMAP code, which makes the normally very cheap user space
prefaulting noticeably more expensive.

Bisected-and-acked-by: Ted Ts'o <tytso@mit.edu>
Analyzed-and-acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-10-07 08:32:38 +01:00
Anna Schumaker
39d0d3bdf7 NFS: Fix a tracepoint NULL-pointer dereference
Running xfstest generic/013 with the tracepoint nfs:nfs4_open_file
enabled produces a NULL-pointer dereference when calculating fileid and
filehandle of the opened file.  Fix this by checking if state is NULL
before trying to use the inode pointer.

Reported-by: Olga Kornievskaia <aglo@umich.edu>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2015-10-06 18:56:25 -04:00
Chris Metcalf
990486c8af strscpy: zero any trailing garbage bytes in the destination
It's possible that the destination can be shadowed in userspace
(as, for example, the perf buffers are now).  So we should take
care not to leak data that could be inspected by userspace.

Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
2015-10-06 14:53:18 -04:00
Chris Metcalf
c753bf34c9 word-at-a-time.h: support zero_bytemask() on alpha and tile
Both alpha and tile needed implementations of zero_bytemask.

The alpha version is untested.

Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
2015-10-06 14:53:16 -04:00
Chris Metcalf
19c22f3a29 word-at-a-time.h: fix some Kbuild files
arch/tile added word-at-a-time.h after the patch that added generic-y
entries; the generic-y entry is now stale.

arch/h8300 is newer than the generic-y patch for word-at-a-time.h,
and needs a generic-y entry.

arch/powerpc seems to have gotten a generic-y entry by mistake in
the first patch; this change removes it.

Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
2015-10-06 14:52:48 -04:00