Commit graph

233398 commits

Author SHA1 Message Date
Santosh Shilimkar
b9b35ade88 omap4: Remove 'FIXME: omap44xx_sram_init not implemented'
The omap44xx_sram_init() implements functionality to push some
code on SRAM whenever the code can't be executed from external
memory. The low power and DVFS code can be executed from
external DDR itself thanks to OMAP4  memory controller hardware
support. So on OMAP4, sram_push kind of functionality isn't needed.

Hence remove the FIXME warning added for implementing sram push
feature on OMAP4.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-17 09:55:03 -08:00
Santosh Shilimkar
7050f915c0 omap2plus: omap4: Set NR_CPU to 2 instead of default 4
The omap2plus_defconfig picks default NR_CPU value as 4 which isn't
correct for OMAP4430. Available CPUs are ony 2, so fix the same.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-17 09:55:03 -08:00
Tony Lindgren
d9e45731de Merge branch 'for_2.6.39/omap4_hwmod_data' of git://gitorious.org/omap-pm/linux into omap-for-linus 2011-02-17 09:48:24 -08:00
Benoit Cousson
5844c4ead2 OMAP4: hwmod data: Add USBOTG
OMAP4 hwmod data structures are populated with base address, L3 and L4
interface clocks, IRQs and sysconfig register details.

As per OMAP USBOTG specification, need to configure the USBOTG
to smart idle/standby or no idle/standby during data transfer and
force idle/standby when not in use to support retention and offmode.
By setting HWMOD_SWSUP_SIDLE and HWMOD_SWSUP_MSTANDBY flags,framework
will take care of configuring to no idle/standby when module is enabled
and force idle/standby when idled.

Signed-off-by: Cousson, Benoit <b-cousson@ti.com>
Signed-off-by: Hema HK <hemahk@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
[b-cousson@ti.com: Fix position, opt_clk, and author]
2011-02-17 18:43:30 +01:00
Benoit Cousson
407a6888f7 OMAP4: hwmod data: Add AESS, McPDM, bandgap, counter_32k, MMC, KBD, ISS & IPU
Add more hwmod structures but keep them commented out for the moment
until the driver adaptation to hwmod / omap_device is done.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@ti.com>
2011-02-17 18:25:37 +01:00
Benoit Cousson
4ddff4932b OMAP4: hwmod data: Add McBSP
Add mcbsp data including a revision member in hwmod_class in
order to provide mcbsp revision information in different omap.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Charulatha V <charu@ti.com>
[b-cousson@ti.com: Remove the mcbsp4 memory name, re-order
properly the structures]
2011-02-17 18:25:36 +01:00
Benoit Cousson
8ca476da04 OMAP4: hwmod data: Add DMIC
Add HWMOD entries for the OMAP DMIC. The HWMOD entires define the system
resource requirements for the driver such as DMA addresses, channels,
and IRQ's. Placing this information in the HWMOD database allows for
more generic drivers to be written and having the specific implementation
details defined in HWMOD.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: David Lambert <dlambert@ti.com>
[b-cousson@ti.com: Change the wrong hwmod name,
add missing flag and re-order structures]
2011-02-17 18:25:34 +01:00
Benoit Cousson
ec5df927a8 OMAP4: hwmod data: Add mailbox
Mailbox hwmod data for omap4.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>
[b-cousson@ti.com: Re-order the structures
and remove the irq line name]
2011-02-17 18:25:33 +01:00
Benoit Cousson
d63bd74fbb OMAP4: hwmod data: Add DSS, DISPC, DSI1&2, RFBI, HDMI and VENC
Add dss, dispc, dsi1, dsi2, hdmi, rfbi and venc hwmods.
In OMAP4 there are severals IPs that can be reached by differents
interconnect paths depending of the access initiator (MPU vs. SDMA).
In the case of the DSS, both L3 direct path and L4 CFG path can be
used to access all the DSS IPs. The two ocp_ip already exists to support
the two address spaces.

      +------------+-- L3_MAIN --+ MPU
  IP  |            |
      +-- L4_CFG --+

L3 main address range is specified first, since it is used by default.
dss is also considered as an IP as dispc, rfbi, and named as dss_core.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Mayuresh Janorkar <mayur@ti.com>
Signed-off-by: Senthilvadivu Guruswamy <svadivu@ti.com>
Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
[b-cousson@ti.com: Re-organize structures to match file
convention and remove irq entry from dss_hwmod]
2011-02-17 18:25:31 +01:00
Benoit Cousson
35d1a66a9c OMAP4: hwmod data: Add timer
Add the data for the 11 timers IPs.
OMAP4 contains two differents IP variants for the timers:
- 8 x regular timer (3, 4, 5, 6, 7, 8, 9 & 11)
- 3 x 1ms timer (1, 2 & 10)

The regular timers registers programming model was changed due to the
adaptation to the new IP interface. Unfortunately the 1ms version
still use the previous programming model. The driver will have
to take care of theses differences.

Please note that the capability and the partitioning is also
different depending of the instance.
- timer 1 is inside the wakeup domain
- timers 5, 6, 7 & 8 are inside in the ABE (audio backend)
- timers 2, 3, 4, 9, 10 & 11 are inside the PER power domain

The timer was previously named gptimerX or dmtimerX, it is
now simply named timerX.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
[b-cousson@ti.com: Fix alignement in class attribute,
re-order flags and update the changelog]
2011-02-17 18:25:29 +01:00
Benoit Cousson
9bcbd7f0d5 OMAP4: hwmod data: Add McSPI
Update omap4 hwmod file with McSPI info.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Charulatha V <charu@ti.com>
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-02-17 18:18:21 +01:00
Benoit Cousson
d11c217f1a OMAP4: hwmod data: Add hwspinlock
Add hwspinlock hwmod data for OMAP4 chip

Signed-off-by: Cousson, Benoit <b-cousson@ti.com>
Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Paul Walmsley <paul@pwsan.com>
[b-cousson@ti.com: Move the data to keep the original
order and add missing SIDLE_SMART_WKUP flag]
2011-02-17 10:57:58 +01:00
Tony Lindgren
9238b6d8e8 Merge branches 'devel-cleanup', 'devel-board', 'devel-early-init' and 'devel-ti816x' into omap-for-linus 2011-02-16 11:32:38 -08:00
Tony Lindgren
e811d3272d TI816X: Update to use init_early
Update to use init_early

Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-16 08:45:46 -08:00
Hemant Pedanekar
4d887a250d TI816X: Add low level debug support
This patch adds support for low level debugging on TI816X boards. Currently the
support for UART3 console on TI816X EVM is added.

Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-16 08:31:53 -08:00
Hemant Pedanekar
2c87fb2e64 TI816X: Create board support and enable build for TI816X EVM
This patch adds minimal support and build configuration for TI816X EVM.

Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-16 08:31:52 -08:00
Hemant Pedanekar
01001712c9 TI816X: Update common OMAP machine specific sources
This patch updates the common machine specific source files with support for
TI816X.

Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-16 08:31:39 -08:00
Hemant Pedanekar
4bd7be22f4 TI816X: Update common omap platform files
This patch updates the common platform files with TI816X support.

The approach taken in this patch is to add TI816X as part of OMAP3 variant where
the cpu class is considered as OMAP34XX and the type is TI816X. This means, both
cpu_is_omap34xx() and cpu_is_ti816x() checks return success on TI816X.

A kernel config option CONFIG_SOC_OMAPTI816X is added under OMAP3 to include
support for TI816X build.

Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-16 08:31:39 -08:00
Linus Torvalds
85e2efbb1d Linux 2.6.38-rc5 2011-02-15 19:23:45 -08:00
Linus Torvalds
048f039f3e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68knommu: set flow handler for secondary interrupt controller of 5249
  m68knommu: remove use of IRQ_FLG_LOCK from 68360 platform support
  m68knommu: fix dereference of port.tty
  m68knommu: add missing linker __modver section
  m68knommu: fix mis-named variable int set_irq_chip loop
  m68knommu: add optimize memmove() function
  m68k: remove arch specific non-optimized memcmp()
  m68knommu: fix use of un-defined _TIF_WORK_MASK
  m68knommu: Rename m548x_wdt.c to m54xx_wdt.c
  m68knommu: fix m548x_wdt.c compilation after headers renaming
  m68knommu: Remove dependencies on nonexistent M68KNOMMU
2011-02-15 17:51:18 -08:00
Greg Ungerer
86d306c960 m68knommu: set flow handler for secondary interrupt controller of 5249
The secondary interrupt controller of the ColdFire 5249 code is not
setting the edge triggered flow handler. Set it.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-02-16 09:43:46 +10:00
Greg Ungerer
4531dab429 m68knommu: remove use of IRQ_FLG_LOCK from 68360 platform support
The m68knommu arch does not define or use IRQ_FLG_LOCK in its irq
subsystem. Remove obsolete use of it.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-02-16 09:43:45 +10:00
Greg Ungerer
bc0c36d3c8 m68knommu: fix dereference of port.tty
The struct_tty associated with a port is now a direct pointer
from within the local private driver info struct. So fix all uses
of it.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-02-16 09:43:18 +10:00
Greg Ungerer
81174262e2 m68knommu: add missing linker __modver section
Add missing linker section __modver to fix:

  LD      vmlinux
/usr/local/bin/../m68k-uclinux/bin/ld.real: error: no memory region specified for loadable section `__modver'

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-02-16 09:43:17 +10:00
Greg Ungerer
b14769d94f m68knommu: fix mis-named variable int set_irq_chip loop
Compiling for 68360 targets gives:

  CC      arch/m68knommu/platform/68360/ints.o
arch/m68knommu/platform/68360/ints.c: In function ‘init_IRQ’:
arch/m68knommu/platform/68360/ints.c:135:16: error: ‘irq’ undeclared (first use in this function)
arch/m68knommu/platform/68360/ints.c:135:16: note: each undeclared identifier is reported only once for each function it appears in

Fix variable name used.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-02-16 09:43:16 +10:00
Greg Ungerer
982cd252ca m68knommu: add optimize memmove() function
Add an m68k/coldfire optimized memmove() function for the m68knommu arch.
This is the same function as used by m68k. Simple speed tests show this
is faster once buffers are larger than 4 bytes, and significantly faster
on much larger buffers (4 times faster above about 100 bytes).

This also goes part of the way to fixing a regression caused by commit
ea61bc461d ("m68k/m68knommu: merge MMU and
non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is
the 68x328 and 68360 families). They currently have no memmove() fucntion
defined, since there was none in the m68knommu/lib functions.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
2011-02-16 09:43:16 +10:00
Greg Ungerer
f9d693d237 m68k: remove arch specific non-optimized memcmp()
The m68k arch implements its own memcmp() function. It is not optimized
in any way (it is the most strait forward coding of memcmp you can get).
Remove it and use the kernels standard memcmp() implementation.

This also goes part of the way to fixing a regression caused by commit
ea61bc461d ("m68k/m68knommu: merge MMU and
non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is
the 68x328 and 68360 families). They currently have no memcmp() function
defined, since there is none in the m68knommu/lib functions.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
2011-02-16 09:42:24 +10:00
Linus Torvalds
b90be8662b Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (27 commits)
  drm/radeon/kms: hopefully fix pll issues for real (v3)
  drm/radeon/kms: add bounds checking to avivo pll algo
  drm: fix wrong usages of drm_device in DRM Developer's Guide
  drm/radeon/kms: fix a few more atombios endian issues
  drm/radeon/kms: improve 6xx/7xx CS error output
  drm/radeon/kms: check AA resolve registers on r300
  drm/radeon/kms: fix tracking of BLENDCNTL, COLOR_CHANNEL_MASK, and GB_Z on r300
  drm/radeon/kms: use linear aligned for evergreen/ni bo blits
  drm/radeon/kms: use linear aligned for 6xx/7xx bo blits
  drm/radeon: fix race between GPU reset and TTM delayed delete thread.
  drm/radeon/kms: evergreen/ni big endian fixes (v2)
  drm/radeon/kms: 6xx/7xx big endian fixes
  drm/radeon/kms: atombios big endian fixes
  drm/radeon: 6xx/7xx non-kms endian fixes
  drm/radeon/kms: optimize CS state checking for r100->r500
  drm: do not leak kernel addresses via /proc/dri/*/vma
  drm/radeon/kms: add connector table for mac g5 9600
  radeon mkregtable: Add missing fclose() calls
  drm/radeon/kms: fix interlaced modes on dce4+
  drm/radeon: fix memory debugging since d961db75ce
  ...
2011-02-15 15:25:33 -08:00
Linus Torvalds
c612cc211d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  pci: use security_capable() when checking capablities during config space read
2011-02-15 15:25:11 -08:00
Andrea Arcangeli
a7d6e4ecdb thp: prevent hugepages during args/env copying into the user stack
Transparent hugepages can only be created if rmap is fully
functional. So we must prevent hugepages to be created while
is_vma_temporary_stack() is true.

This also optmizes away some harmless but unnecessary setting of
khugepaged_scan.address and it switches some BUG_ON to VM_BUG_ON.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-15 15:21:11 -08:00
Linus Torvalds
09f586b35d Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  ACPI / Video: Probe for output switch method when searching video devices.
  ACPI / Wakeup: Enable button GPEs unconditionally during initialization
  ACPI / ACPICA: Avoid crashing if _PRW is defined for the root object
  ACPI: Fix acpi_os_read_memory() and acpi_os_write_memory() (v2)
2011-02-15 15:19:45 -08:00
Linus Torvalds
b9d4ba6b48 Merge branch 'tools-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6
* 'tools-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
  tools: turbostat: style updates
  tools: turbostat: fix bitwise and operand
2011-02-15 15:19:22 -08:00
Len Brown
dc3397437d Merge branch 'iomem' into release 2011-02-15 15:25:48 -05:00
Linus Torvalds
b45bbf0772 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (21 commits)
  dmaengine: add slave-dma maintainer
  dma: ipu_idmac: do not lose valid received data in the irq handler
  dmaengine: imx-sdma: fix up param for the last BD in sdma_prep_slave_sg()
  dmaengine: imx-sdma: correct sdmac->status in sdma_handle_channel_loop()
  dmaengine: imx-sdma: return sdmac->status in sdma_tx_status()
  dmaengine: imx-sdma: set sdmac->status to DMA_ERROR in err_out of sdma_prep_slave_sg()
  dmaengine: imx-sdma: remove IMX_DMA_SG_LOOP handling in sdma_prep_slave_sg()
  dmaengine i.MX dma: initialize dma capabilities outside channel loop
  dmaengine i.MX DMA: do not initialize chan_id field
  dmaengine i.MX dma: check sg entries for valid addresses and lengths
  dmaengine i.MX dma: set maximum segment size for our device
  dmaengine i.MX SDMA: reserve channel 0 by not registering it
  dmaengine i.MX SDMA: initialize dma capabilities outside channel loop
  dmaengine i.MX SDMA: do not initialize chan_id field
  dmaengine i.MX sdma: check sg entries for valid addresses and lengths
  dmaengine i.MX sdma: set maximum segment size for our device
  DMA: PL08x: fix channel pausing to timeout rather than lockup
  DMA: PL08x: fix infinite wait when terminating transfers
  dmaengine: imx-sdma: fix inconsistent naming in sdma_assign_cookie()
  dmaengine: imx-sdma: propagate error in sdma_probe() instead of returning 0
  ...
2011-02-15 12:07:35 -08:00
Linus Torvalds
f60c153d50 Merge branch 'for-2.6.38' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.38' of git://linux-nfs.org/~bfields/linux:
  nfsd: break lease on unlink due to rename
  nfsd4: acquire only one lease per file
  nfsd4: modify fi_delegations under recall_lock
  nfsd4: remove unused deleg dprintk's.
  nfsd4: split lease setting into separate function
  nfsd4: fix leak on allocation error
  nfsd4: add helper function for lease setup
  nfsd4: split up nfsd_break_deleg_cb
  NFSD: memory corruption due to writing beyond the stat array
  NFSD: use nfserr for status after decode_cb_op_status
  nfsd: don't leak dentry count on mnt_want_write failure
2011-02-15 12:06:38 -08:00
Linus Torvalds
a1213b091c Merge branches 'core-fixes-for-linus' and 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  Revert "lockdep, timer: Fix del_timer_sync() annotation"

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  timer debug: Hide kernel addresses via %pK in /proc/timer_list
2011-02-15 10:19:18 -08:00
Linus Torvalds
1cecd791f2 Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Fix text_poke_smp_batch() deadlock
  perf tools: Fix thread_map event synthesizing in top and record
  watchdog, nmi: Lower the severity of error messages
  ARM: oprofile: Fix backtraces in timer mode
  oprofile: Fix usage of CONFIG_HW_PERF_EVENTS for oprofile_perf_init and friends
2011-02-15 10:18:48 -08:00
Linus Torvalds
fef86db8fe Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, dmi, debug: Log board name (when present) in dmesg/oops output
  x86, ioapic: Don't warn about non-existing IOAPICs if we have none
  x86: Fix mwait_usable section mismatch
  x86: Readd missing irq_to_desc() in fixup_irq()
  x86: Fix section mismatch in LAPIC initialization
2011-02-15 10:18:29 -08:00
Linus Torvalds
87450bd55d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: matrix_keypad - increase the limit of rows and columns
  Input: wacom - fix error path in wacom_probe()
  Input: ads7846 - check proper condition when freeing gpio
  Revert "Input: do not pass injected events back to the originating handler"
  Input: sysrq - rework re-inject logic
  Input: serio - clear pending rescans after sysfs driver rebind
  Input: rotary_encoder - use proper irqflags
  Input: wacom_w8001 - report resolution to userland
2011-02-15 09:40:27 -08:00
Linus Torvalds
055d219441 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  get rid of nameidata_dentry_drop_rcu() calling nameidata_drop_rcu()
  drop out of RCU in return_reval
  split do_revalidate() into RCU and non-RCU cases
  in do_lookup() split RCU and non-RCU cases of need_revalidate
  nothing in do_follow_link() is going to see RCU
2011-02-15 08:06:36 -08:00
Linus Torvalds
007a14af26 Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: check return value of alloc_extent_map()
  Btrfs - Fix memory leak in btrfs_init_new_device()
  btrfs: prevent heap corruption in btrfs_ioctl_space_info()
  Btrfs: Fix balance panic
  Btrfs: don't release pages when we can't clear the uptodate bits
  Btrfs: fix page->private races
2011-02-15 08:00:35 -08:00
Martin Schwidefsky
261cd298a8 s390: remove task_show_regs
task_show_regs used to be a debugging aid in the early bringup days
of Linux on s390. /proc/<pid>/status is a world readable file, it
is not a good idea to show the registers of a process. The only
correct fix is to remove task_show_regs.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-02-15 07:34:16 -08:00
Chris Wright
a628e7b87e pci: use security_capable() when checking capablities during config space read
This reintroduces commit 47970b1b which was subsequently reverted
as f00eaeea.  The original change was broken and caused X startup
failures and generally made privileged processes incapable of reading
device dependent config space.  The normal capable() interface returns
true on success, but the LSM interface returns 0 on success.  This thinko
is now fixed in this patch, and has been confirmed to work properly.

So, once again...Eric Paris noted that commit de139a3 ("pci: check caps
from sysfs file open to read device dependent config space") caused the
capability check to bypass security modules and potentially auditing.
Rectify this by calling security_capable() when checking the open file's
capabilities for config space reads.

Reported-by: Eric Paris <eparis@redhat.com>
Tested-by: Dave Young <hidave.darkstar@gmail.com>
Acked-by: James Morris <jmorris@namei.org>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Alex Riesen <raa.lkml@gmail.com>
Cc: Sedat Dilek <sedat.dilek@googlemail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: James Morris <jmorris@namei.org>
2011-02-15 19:06:31 +11:00
Al Viro
4e924a4f53 get rid of nameidata_dentry_drop_rcu() calling nameidata_drop_rcu()
can't happen anymore and didn't work right anyway

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-02-15 02:26:54 -05:00
Al Viro
f60aef7ec6 drop out of RCU in return_reval
... thus killing the need to handle drop-from-RCU in d_revalidate()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-02-15 02:26:54 -05:00
Al Viro
f5e1c1c1af split do_revalidate() into RCU and non-RCU cases
fixing oopsen in lookup_one_len()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-02-15 02:26:54 -05:00
Al Viro
24643087e7 in do_lookup() split RCU and non-RCU cases of need_revalidate
and use unlikely() instead of gotos, for fsck sake...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-02-15 02:26:54 -05:00
Al Viro
844a391799 nothing in do_follow_link() is going to see RCU
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-02-15 02:26:53 -05:00
Naga Chumbalkar
84e383b322 x86, dmi, debug: Log board name (when present) in dmesg/oops output
The "Type 2" SMBIOS record that contains Board Name is not
strictly required and may be absent in the SMBIOS on some
platforms.

( Please note that Type 2 is not listed in Table 3 in Sec 6.2
  ("Required Structures and Data") of the SMBIOS v2.7
  Specification. )

Use the Manufacturer Name (aka System Vendor) name.
Print Board Name only when it is present.

Before the fix:
  (i) dmesg output: DMI: /ProLiant DL380 G6, BIOS P62 01/29/2011
 (ii) oops output:  Pid: 2170, comm: bash Not tainted 2.6.38-rc4+ #3 /ProLiant DL380 G6

After the fix:
  (i) dmesg output: DMI: HP ProLiant DL380 G6, BIOS P62 01/29/2011
 (ii) oops output:  Pid: 2278, comm: bash Not tainted 2.6.38-rc4+ #4 HP ProLiant DL380 G6

Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: <stable@kernel.org> # .3x - good for debugging, please apply as far back as it applies cleanly
LKML-Reference: <20110214224423.2182.13929.sendpatchset@nchumbalkar.americas.hpqcorp.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-15 04:20:57 +01:00
Paul Bolle
678301ecad x86, ioapic: Don't warn about non-existing IOAPICs if we have none
mp_find_ioapic() prints errors like:

    ERROR: Unable to locate IOAPIC for GSI 13

if it can't find the IOAPIC that manages that specific GSI. I
see errors like that at every boot of a laptop that apparently
doesn't have any IOAPICs.

But if there are no IOAPICs it doesn't seem to be an error that
none can be found. A solution that gets rid of this message is
to directly return if nr_ioapics (still) is zero. (But keep
returning -1 in that case, so nothing breaks from this change.)

The call chain that generates this error is:

pnpacpi_allocated_resource()
    case ACPI_RESOURCE_TYPE_IRQ:
        pnpacpi_parse_allocated_irqresource()
            acpi_get_override_irq()
                 mp_find_ioapic()

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-02-15 04:15:04 +01:00