firefly-linux-kernel-4.4.55.git
13 years agogpio: make gpio_{request,free}_array gpio array parameter const
Lars-Peter Clausen [Wed, 25 May 2011 23:20:31 +0000 (16:20 -0700)]
gpio: make gpio_{request,free}_array gpio array parameter const

gpio_{request,free}_array should not (and do not) modify the passed gpio
array, so make the parameter const.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio: Convert gpio_is_valid to return bool
Joe Perches [Tue, 10 May 2011 23:23:07 +0000 (16:23 -0700)]
gpio: Convert gpio_is_valid to return bool

Make the code a bit more readable.

Instead of casting an int to an unsigned then comparing to
MAX_NR_GPIOS, add a >= 0 test and let the compiler optimizer
do the conversion to unsigned.

The generated code should be the same.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio: Move the s5pc100 GPIO to drivers/gpio
Kyungmin Park [Mon, 23 May 2011 08:27:58 +0000 (17:27 +0900)]
gpio: Move the s5pc100 GPIO to drivers/gpio

Move the Samsung s5pc100 SoC GPIO driver to drivers/gpio

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio: Move the s5pv210 GPIO to drivers/gpio
Kyungmin Park [Mon, 23 May 2011 08:27:51 +0000 (17:27 +0900)]
gpio: Move the s5pv210 GPIO to drivers/gpio

Move the Samsung s5pv210 SoC GPIO driver to drivers/gpio

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio: Move the exynos4 GPIO to drivers/gpio
Kyungmin Park [Mon, 23 May 2011 08:27:45 +0000 (17:27 +0900)]
gpio: Move the exynos4 GPIO to drivers/gpio

Move the Samsung Exynos4 series SoCs GPIO driver to drivers/gpio

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio: Move to Samsung common GPIO library to drivers/gpio
Kyungmin Park [Mon, 23 May 2011 08:27:38 +0000 (17:27 +0900)]
gpio: Move to Samsung common GPIO library to drivers/gpio

It's common gpiolib for recent Samsung SoCs. Move to drivers/gpio

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio/nomadik: add function to read GPIO pull down status
Rickard Andersson [Tue, 24 May 2011 21:07:17 +0000 (23:07 +0200)]
gpio/nomadik: add function to read GPIO pull down status

Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com>
Reviewed-by: Martin Persson <martin.persson@stericsson.com>
[Split off from larger patch]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio/nomadik: show all pins in debug
Rabin Vincent [Tue, 24 May 2011 21:07:09 +0000 (23:07 +0200)]
gpio/nomadik: show all pins in debug

Useful to check the status of the runtime pin muxing.

Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
[Squashed, modified to use chip-internal IRQ trigger state]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio: move Nomadik GPIO driver to drivers/gpio
Grant Likely [Thu, 26 May 2011 23:30:03 +0000 (17:30 -0600)]
gpio: move Nomadik GPIO driver to drivers/gpio

This moves the Nomadik GPIO driver out of arch/arm/plat-nomadik
and into the desired location indicated by the subsystem
maintainer.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[grant.likely: squashed with kconfig fixup]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio: move U300 GPIO driver to drivers/gpio
Linus Walleij [Tue, 24 May 2011 21:06:52 +0000 (23:06 +0200)]
gpio: move U300 GPIO driver to drivers/gpio

This moves the U300 GPIO driver out of arch/arm/mach-u300 and into
the desired location indicated by the subsystem maintainer.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agolangwell_gpio: add runtime pm support
Kristen Carlson Accardi [Tue, 10 May 2011 13:23:45 +0000 (14:23 +0100)]
langwell_gpio: add runtime pm support

While this is essentially a no-op for this driver, it has the
side effect of letting the PMU driver snoop D3 requests from
the PCI core for this driver.

This is only for langwell, not for whitney point.

Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio/pca953x: Add support for pca9574 and pca9575 devices
Haojian Zhuang [Mon, 18 Apr 2011 14:12:46 +0000 (22:12 +0800)]
gpio/pca953x: Add support for pca9574 and pca9575 devices

PCA957x is i2c gpio expander, and similar to PCA953x. Although register
configurations are different between PCA957x and PCA953x. They can share
a lot of components, such as IRQ handling, GPIO IN/OUT. So updating PCA953x
driver to support PCA957x chips.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agogpio/cs5535: Show explicit dependency between gpio_cs5535 and mfd_cs5535
Ed Wildgoose [Thu, 7 Apr 2011 22:51:15 +0000 (15:51 -0700)]
gpio/cs5535: Show explicit dependency between gpio_cs5535 and mfd_cs5535

cs5535-gpio.c has been split into two, with various setup moved
into cs5535-mfd.c.  Given that cs5535-gpio will not load without
the -mfd part, lets make that dependency explicit in Kconfig

Signed-off-by: Ed Wildgoose <kernel@wildgooses.com>
Acked-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agoMerge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 26 May 2011 19:19:31 +0000 (12:19 -0700)]
Merge branch 'x86-vdso-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: vdso: Remove unused variable
  x86-64: Optimize vDSO time()
  x86-64: Add time to vDSO
  x86-64: Turn off -pg and turn on -foptimize-sibling-calls for vDSO
  x86-64: Move vread_tsc into a new file with sensible options
  x86-64: Vclock_gettime(CLOCK_MONOTONIC) can't ever see nsec < 0
  x86-64: Don't generate cmov in vread_tsc
  x86-64: Remove unnecessary barrier in vread_tsc
  x86-64: Clean up vdso/kernel shared variables

13 years agoMerge branches 'core-fixes-for-linus' and 'irq-fixes-for-linus' of git://git.kernel...
Linus Torvalds [Thu, 26 May 2011 19:19:11 +0000 (12:19 -0700)]
Merge branches 'core-fixes-for-linus' and 'irq-fixes-for-linus' of git://git./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:
  seqlock: Get rid of SEQLOCK_UNLOCKED

* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  irq: Remove smp_affinity_list when unregister irq proc

13 years agoMerge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Thu, 26 May 2011 19:14:41 +0000 (12:14 -0700)]
Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6

* 'gpio/next' of git://git.secretlab.ca/git/linux-2.6:
  gpio/via: rename VIA local config struct
  basic_mmio_gpio: split into a gpio library and platform device
  gpio: remove some legacy comments in build files
  gpio: add trace events for setting direction and value
  gpio/pca953x: Use handle_simple_irq instead of handle_edge_irq
  gpiolib: export gpiochip_find
  gpio: remove redundant Kconfig depends on GPIOLIB
  basic_mmio_gpio: convert to non-__raw* accessors
  basic_mmio_gpio: support direction registers
  basic_mmio_gpio: support different input/output registers
  basic_mmio_gpio: detect output method at probe time
  basic_mmio_gpio: request register regions
  basic_mmio_gpio: allow overriding number of gpio
  basic_mmio_gpio: convert to platform_{get,set}_drvdata()
  basic_mmio_gpio: remove runtime width/endianness evaluation

13 years agoMerge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Linus Torvalds [Thu, 26 May 2011 19:14:20 +0000 (12:14 -0700)]
Merge branch 'for-next' of git://git./linux/kernel/git/sameo/mfd-2.6

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (57 commits)
  regulator: Fix 88pm8607.c printk format warning
  input: Add support for Qualcomm PMIC8XXX power key
  input: Add Qualcomm pm8xxx keypad controller driver
  mfd: Add omap-usbhs runtime PM support
  mfd: Fix ASIC3 SD Host Controller Configuration size
  mfd: Fix omap_usbhs_alloc_children error handling
  mfd: Fix omap usbhs crash when rmmoding ehci or ohci
  mfd: Add ASIC3 LED support
  leds: Add ASIC3 LED support
  mfd: Update twl4030-code maintainer e-mail address
  mfd: Correct the name and bitmask for ab8500-gpadc BTempPullUp
  mfd: Add manual ab8500-gpadc batt temp activation for AB8500 3.0
  mfd: Provide ab8500-core enumerators for chip cuts
  mfd: Check twl4030-power remove script error condition after i2cwrite
  mfd: Fix twl6030 irq definitions
  mfd: Add phoenix lite (twl6025) support to twl6030
  mfd: Avoid to use constraint name in 88pm860x regulator driver
  mfd: Remove checking on max8925 regulator[0]
  mfd: Remove unused parameter from 88pm860x API
  mfd: Avoid to allocate 88pm860x static platform data
  ...

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Thu, 26 May 2011 19:13:57 +0000 (12:13 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/cma: Save PID of ID's owner
  RDMA/cma: Add support for netlink statistics export
  RDMA/cma: Pass QP type into rdma_create_id()
  RDMA: Update exported headers list
  RDMA/cma: Export enum cma_state in <rdma/rdma_cm.h>
  RDMA/nes: Add a check for strict_strtoul()
  RDMA/cxgb3: Don't post zero-byte read if endpoint is going away
  RDMA/cxgb4: Use completion objects for event blocking
  IB/srp: Fix integer -> pointer cast warnings
  IB: Add devnode methods to cm_class and umad_class
  IB/mad: Return EPROTONOSUPPORT when an RDMA device lacks the QP required
  IB/uverbs: Add devnode method to set path/mode
  RDMA/ucma: Add .nodename/.mode to tell userspace where to create device node
  RDMA: Add netlink infrastructure
  RDMA: Add error handling to ib_core_init()

13 years agoMerge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Thu, 26 May 2011 19:13:22 +0000 (12:13 -0700)]
Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6

* 'spi/next' of git://git.secretlab.ca/git/linux-2.6:
  spi/amba-pl022: work in polling or interrupt mode if pl022_dma_probe fails
  spi/spi_s3c24xx: Use spi_bitbang_stop instead of spi_unregister_master in s3c24xx_spi_remove
  spi/spi_nuc900: Use spi_bitbang_stop instead of spi_unregister_master in nuc900_spi_remove
  spi/spi_tegra: use spi_unregister_master() instead of spi_master_put()
  spi/spi_sh: use spi_unregister_master instead of spi_master_put in remove path
  spi: Use void pointers for data in simple SPI I/O operations
  spi/pl022: use cpu_relax in the busy loop
  spi/pl022: mark driver non-experimental
  spi/pl022: timeout on polled transfer v2
  spi/dw_spi: improve the interrupt mode with the batch ops
  spi/dw_spi: change poll mode transfer from byte ops to batch ops
  spi/dw_spi: remove the un-necessary flush()
  spi/dw_spi: unify the low level read/write routines

13 years agoMerge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind...
Linus Torvalds [Thu, 26 May 2011 19:11:54 +0000 (12:11 -0700)]
Merge branch 'omap-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6

* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (33 commits)
  OMAP3: PM: Boot message is not an error, and not helpful, remove it
  OMAP3: cpuidle: change the power domains modes determination logic
  OMAP3: cpuidle: code rework for improved readability
  OMAP3: cpuidle: re-organize the C-states data
  OMAP3: clean-up mach specific cpuidle data structures
  OMAP3 cpuidle: remove useless SDP specific timings
  usb: otg: OMAP4430: Powerdown the internal PHY when USB is disabled
  usb: otg: OMAP4430: Fixing the omap4430_phy_init function
  usb: musb: am35x: fix compile error when building am35x
  usb: musb: OMAP4430: Power down the PHY during board init
  omap: drop board-igep0030.c
  omap: igep0020: add support for IGEP3
  omap: igep0020: minor refactoring
  omap: igep0020: name refactoring for future merge with IGEP3
  omap: Remove support for omap2evm
  arm: omap2plus: GPIO cleanup
  omap: musb: introduce default board config
  omap: move detection of NAND CS to common-board-devices
  omap: use common initialization for PMIC i2c bus
  omap: consolidate touch screen initialization among different boards
  ...

13 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Thu, 26 May 2011 19:11:17 +0000 (12:11 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/4xx: Adding PCIe MSI support
  powerpc: Fix irq_free_virt by adjusting bounds before loop
  powerpc/irq: Protect irq_radix_revmap_lookup against irq_free_virt
  powerpc/irq: Check desc in handle_one_irq and expand generic_handle_irq
  powerpc/irq: Always free duplicate IRQ_LEGACY hosts
  powerpc/irq: Remove stale and misleading comment
  powerpc/cell: Rename ipi functions to match current abstractions
  powerpc/cell: Use common smp ipi actions
  Remove unused MSG_ flags in linux/smp.h
  powerpc/pseries: Update MAX_HCALL_OPCODE to reflect page coalescing
  powerpc/oprofile: Handle events that raise an exception without overflowing
  powerpc/ftrace: Implement raw syscall tracepoints on PowerPC

13 years agoFix build with !HUGETLBFS
Linus Torvalds [Thu, 26 May 2011 19:03:50 +0000 (12:03 -0700)]
Fix build with !HUGETLBFS

I stupidly broke the case of CONFIG_HUGETLBFS=n when doing the
conversion to vm_flags_t in commit ca16d140af91 ("mm: don't access
vm_flags as 'int'").  And my 'allyesconfig' build didn't find it, for
obvious reasons..

Include <linux/mm_types.h> in <linux/hugetlb.h>.  The problem could have
been avoided by just turning the hugetlb_file_setup() error wrapper into
a macro, but mm_types.h is a reasonable include in this file.

Reported-by: Richard -rw- Weinberger <richard.weinberger@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec...
Linus Torvalds [Thu, 26 May 2011 17:55:15 +0000 (10:55 -0700)]
Merge branch 'linux-next' of git://git./linux/kernel/git/jlbec/ocfs2

* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (28 commits)
  Ocfs2: Teach local-mounted ocfs2 to handle unwritten_extents correctly.
  ocfs2/dlm: Do not migrate resource to a node that is leaving the domain
  ocfs2/dlm: Add new dlm message DLM_BEGIN_EXIT_DOMAIN_MSG
  Ocfs2/move_extents: Set several trivial constraints for threshold.
  Ocfs2/move_extents: Let defrag handle partial extent moving.
  Ocfs2/move_extents: move/defrag extents within a certain range.
  Ocfs2/move_extents: helper to calculate the defraging length in one run.
  Ocfs2/move_extents: move entire/partial extent.
  Ocfs2/move_extents: helpers to update the group descriptor and global bitmap inode.
  Ocfs2/move_extents: helper to probe a proper region to move in an alloc group.
  Ocfs2/move_extents: helper to validate and adjust moving goal.
  Ocfs2/move_extents: find the victim alloc group, where the given #blk fits.
  Ocfs2/move_extents: defrag a range of extent.
  Ocfs2/move_extents: move a range of extent.
  Ocfs2/move_extents: lock allocators and reserve metadata blocks and data clusters for extents moving.
  Ocfs2/move_extents: Add basic framework and source files for extent moving.
  Ocfs2/move_extents: Adding new ioctl code 'OCFS2_IOC_MOVE_EXT' to ocfs2.
  Ocfs2/refcounttree: Publicize couple of funcs from refcounttree.c
  Ocfs2: Add a new code 'OCFS2_INFO_FREEFRAG' for o2info ioctl.
  Ocfs2: Add a new code 'OCFS2_INFO_FREEINODE' for o2info ioctl.
  ...

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem
Linus Torvalds [Thu, 26 May 2011 17:50:56 +0000 (10:50 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/djm/tmem

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem:
  xen: cleancache shim to Xen Transcendent Memory
  ocfs2: add cleancache support
  ext4: add cleancache support
  btrfs: add cleancache support
  ext3: add cleancache support
  mm/fs: add hooks to support cleancache
  mm: cleancache core ops functions and config
  fs: add field to superblock to support cleancache
  mm/fs: cleancache documentation

Fix up trivial conflict in fs/btrfs/extent_io.c due to includes

13 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Thu, 26 May 2011 17:49:11 +0000 (10:49 -0700)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: correctly decrement the extent buffer index in xfs_bmap_del_extent
  xfs: check for valid indices in xfs_iext_get_ext and xfs_iext_idx_to_irec
  xfs: fix up asserts in xfs_iflush_fork
  xfs: do not do pointer arithmetic on extent records
  xfs: do not use unchecked extent indices in xfs_bunmapi
  xfs: do not use unchecked extent indices in xfs_bmapi
  xfs: do not use unchecked extent indices in xfs_bmap_add_extent_*
  xfs: remove if_lastex
  xfs: remove the unused XFS_BMAPI_RSVBLOCKS flag
  xfs: do not discard alloc btree blocks
  xfs: add online discard support

13 years agoregulator: Fix 88pm8607.c printk format warning
Randy Dunlap [Thu, 26 May 2011 17:16:15 +0000 (10:16 -0700)]
regulator: Fix 88pm8607.c printk format warning

Fix printk format warning (seen on x86_64) and change to unsigned
output format:

drivers/regulator/88pm8607.c:417: warning: format '%d' expects type 'int', but argument 3 has type 'resource_size_t'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agoinput: Add support for Qualcomm PMIC8XXX power key
Trilok Soni [Fri, 13 May 2011 09:47:51 +0000 (15:17 +0530)]
input: Add support for Qualcomm PMIC8XXX power key

Add support for PMIC8XXX power key driven over dedicated
KYPD_PWR_N pin.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agoinput: Add Qualcomm pm8xxx keypad controller driver
Trilok Soni [Thu, 19 May 2011 05:24:04 +0000 (10:54 +0530)]
input: Add Qualcomm pm8xxx keypad controller driver

Add Qualcomm PMIC8XXX based keypad controller driver
supporting upto 18x8 matrix configuration.

Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Add omap-usbhs runtime PM support
Keshava Munegowda [Sun, 22 May 2011 20:51:26 +0000 (22:51 +0200)]
mfd: Add omap-usbhs runtime PM support

The usbhs core driver does not enable/disable the interface and
functional clocks; These clocks are handled by hwmod and runtime pm,
hence insted of the clock enable/disable, the runtime pm APIS are
used. however,the port clocks and tll clocks are handled
by the usbhs core.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Fix ASIC3 SD Host Controller Configuration size
Paul Parsons [Sun, 15 May 2011 14:13:11 +0000 (14:13 +0000)]
mfd: Fix ASIC3 SD Host Controller Configuration size

The size of the TC6380AF SD Host Controller Configuration area is 0x200 bytes (assuming registers are aligned on 32-bit boundaries), not 0x400 bytes. Source: Toshiba TC6380AF Specification sections 4.2 and 4.3.1

Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Fix omap_usbhs_alloc_children error handling
Axel Lin [Sat, 14 May 2011 06:15:36 +0000 (14:15 +0800)]
mfd: Fix omap_usbhs_alloc_children error handling

1. Return proper error if omap_usbhs_alloc_child fails
2. In the case of goto err_ehci, we should call platform_device_unregister(ehci)
   instead of platform_device_put(ehci) because we have already added the
   platform device to device hierarchy.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Tested-by: Keshava Munegowda <keshava_mgowda@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Fix omap usbhs crash when rmmoding ehci or ohci
Keshava Munegowda [Mon, 16 May 2011 08:54:58 +0000 (14:24 +0530)]
mfd: Fix omap usbhs crash when rmmoding ehci or ohci

The disabling of clocks and freeing GPIO are changed
to fix the occurrence of the crash of rmmod of ehci and ohci
drivers. The GPIOs should be freed after the spin locks are
unlocked.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: stable@kernel.org
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Add ASIC3 LED support
Paul Parsons [Fri, 13 May 2011 18:53:03 +0000 (18:53 +0000)]
mfd: Add ASIC3 LED support

Add LED support for the HTC ASIC3. Underlying support is provided by the mfd/asic3 and leds/leds-asic3 drivers. An example configuration is provided by the pxa/hx4700 platform.

Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agoleds: Add ASIC3 LED support
Paul Parsons [Fri, 13 May 2011 18:52:56 +0000 (18:52 +0000)]
leds: Add ASIC3 LED support

Add LED support for the HTC ASIC3. Underlying support is provided by the mfd/asic3 and leds/leds-asic3 drivers. An example configuration is provided by the pxa/hx4700 platform.

Signed-off-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Update twl4030-code maintainer e-mail address
Peter Ujfalusi [Tue, 10 May 2011 05:59:23 +0000 (08:59 +0300)]
mfd: Update twl4030-code maintainer e-mail address

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Correct the name and bitmask for ab8500-gpadc BTempPullUp
Johan Palsson [Sat, 7 May 2011 22:55:43 +0000 (00:55 +0200)]
mfd: Correct the name and bitmask for ab8500-gpadc BTempPullUp

The bitmask for enabling the BatTemp pull-up was wrong and
is corrected. The name is also changed to be inline with
the AB8500 register description

Signed-off-by: Johan Palsson <johan.palsson@stericsson.com>
Reviewed-by: Mattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Add manual ab8500-gpadc batt temp activation for AB8500 3.0
Karl Komierowski [Sat, 7 May 2011 22:55:31 +0000 (00:55 +0200)]
mfd: Add manual ab8500-gpadc batt temp activation for AB8500 3.0

In AB8500 3.0 the pull-up supplying the NTC must be manually activated.
Add enumerators to chip version detection logic.

Signed-off-by: Kalle Komierowski <karl.komierowski@stericsson.com>
Reviewed-by: Johan Palsson <johan.palsson@stericsson.com>
Reviewed-by: Daniel Willerud <daniel.willerud@stericsson.com>
Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Provide ab8500-core enumerators for chip cuts
Linus Walleij [Sat, 7 May 2011 22:54:45 +0000 (00:54 +0200)]
mfd: Provide ab8500-core enumerators for chip cuts

Since functionality in MFD cells may need to be adjusted according to
chip revision, let's enumerate them and keep track of them.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Check twl4030-power remove script error condition after i2cwrite
Lesly A M [Wed, 4 May 2011 12:08:53 +0000 (17:38 +0530)]
mfd: Check twl4030-power remove script error condition after i2cwrite

Fixing the error condition check in twl4030 remove script function.
Due to some typo in commit ID: 11a441ce82d6ffecfd39b324024de0cd630b36c1

Signed-off-by: Lesly A M <leslyam@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Fix twl6030 irq definitions
Graeme Gregory [Thu, 12 May 2011 13:27:56 +0000 (14:27 +0100)]
mfd: Fix twl6030 irq definitions

The charger fault IRQs from the twl will in future patches be handled
by a seperate IRQ handler in the charger driver than the general charger
IRQ. Give them different IRQ numbers now to allow the charger driver to
be merged in the future.

Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Add phoenix lite (twl6025) support to twl6030
Graeme Gregory [Thu, 12 May 2011 13:27:55 +0000 (14:27 +0100)]
mfd: Add phoenix lite (twl6025) support to twl6030

Phoenix Lite is based on the twl6030 family of PMICs. It has mostly the
same feature set of twl6030 but with small changes. The codec block has
also been removed. It also has a new charger block and new features in
its ADC block. VUSB handling also differs.

Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Avoid to use constraint name in 88pm860x regulator driver
Haojian Zhuang [Fri, 6 May 2011 09:21:23 +0000 (17:21 +0800)]
mfd: Avoid to use constraint name in 88pm860x regulator driver

Avoid to use constraint name in regulator driver. So use regulator id is used
instead in platform driver.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Remove checking on max8925 regulator[0]
Haojian Zhuang [Fri, 6 May 2011 09:21:25 +0000 (17:21 +0800)]
mfd: Remove checking on max8925 regulator[0]

Since regulator[0] is always checking in mfd driver, it results in
registration failure without regulator[0].

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Remove unused parameter from 88pm860x API
Haojian Zhuang [Fri, 6 May 2011 09:21:24 +0000 (17:21 +0800)]
mfd: Remove unused parameter from 88pm860x API

i2c_client parameter isn't used in some functions. Just remove it.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Avoid to allocate 88pm860x static platform data
Haojian Zhuang [Fri, 6 May 2011 09:21:21 +0000 (17:21 +0800)]
mfd: Avoid to allocate 88pm860x static platform data

Maybe multiple PMIC devices are installed into one board. Static variable
can only make driver logic mess. So remove these variable, and use
platform data from platform driver instead.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Add rtc support to 88pm860x
Haojian Zhuang [Fri, 6 May 2011 09:21:20 +0000 (17:21 +0800)]
mfd: Add rtc support to 88pm860x

Enable rtc function in 88pm860x PMIC.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agoregulator: Enable max8925 i2c sequence for control
Haojian Zhuang [Mon, 18 Apr 2011 14:04:09 +0000 (22:04 +0800)]
regulator: Enable max8925 i2c sequence for control

Force to enable i2c as power up/down sequence. Otherwise, SD/LDO can't
be enabled or disabled via accessing i2c bus.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agopower_supply: Use max8925 platform_data from cell
Haojian Zhuang [Mon, 18 Apr 2011 14:04:08 +0000 (22:04 +0800)]
power_supply: Use max8925 platform_data from cell

Avoid to get platform_data from parent device. Get it from mfd cell
device instead.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Anton Vorontsov <cbou@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Fix tps6586x GPIO value setting
Vincent Palatin [Tue, 12 Apr 2011 14:55:58 +0000 (10:55 -0400)]
mfd: Fix tps6586x GPIO value setting

In the current code, every time we set a TPS6586x GPIO pin,
the tps6586x_gpio_set function is resetting all other GPIO pins.
We need to update the right GPIOxOUT bit of the GPIOSET2 register instead
of overriding the full value.

Tested by setting sequentially GPIO2 and GPIO3 and verifying the
pins voltage.

Change-Id: I560edde146c5425cce37432c4ee91569eea5adcf
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agoMAINTAINERS: Add patterns for pmic 8921 files to MSM subsystem
Abhijeet Dharmapurikar [Tue, 5 Apr 2011 21:40:56 +0000 (14:40 -0700)]
MAINTAINERS: Add patterns for pmic 8921 files to MSM subsystem

Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Add pm8xxx irq support
Abhijeet Dharmapurikar [Tue, 5 Apr 2011 21:40:53 +0000 (14:40 -0700)]
mfd: Add pm8xxx irq support

Add support for the irq controller in Qualcomm 8xxx pmic. The 8xxx
interrupt controller provides control for gpio and mpp configured as
interrupts in addition to other subdevice interrupts. The interrupt
controller also provides a way to read the real time status of an
interrupt. This real time status is the only way one can get the
input values of gpio and mpp lines.

Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Add Qualcomm PMIC 8921 core driver
Abhijeet Dharmapurikar [Tue, 5 Apr 2011 21:40:52 +0000 (14:40 -0700)]
mfd: Add Qualcomm PMIC 8921 core driver

Add support for the Qualcomm PM8921 PMIC chip. The core driver
will communicate with the PMIC chip via the MSM SSBI bus.

Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Group NXP PCF50633* drivers together
Axel Lin [Fri, 15 Apr 2011 12:06:37 +0000 (20:06 +0800)]
mfd: Group NXP PCF50633* drivers together

PCF50633_ADC and PCF50633_GPIO depends on MFD_PCF50633.
Thus group NXP PCF50633* drivers together.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Group TPSxxxxx power management chips together
Axel Lin [Fri, 15 Apr 2011 12:04:45 +0000 (20:04 +0800)]
mfd: Group TPSxxxxx power management chips together

Group TPSxxxxx power management chips together and sort in alphabetical order.
This change makes it easier for users to find config options.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: TWL5030 version checking in twl-core
Lesly A M [Thu, 14 Apr 2011 12:27:53 +0000 (17:57 +0530)]
mfd: TWL5030 version checking in twl-core

Added API to get the TWL5030 Si version from the IDCODE register.
It is used for enabling the workaround for TWL erratum 27.

Signed-off-by: Lesly A M <leslyam@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: David Derrick <dderrick@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Modifying the twl4030-power macro name Main_Ref to all caps
Lesly A M [Thu, 14 Apr 2011 12:27:51 +0000 (17:57 +0530)]
mfd: Modifying the twl4030-power macro name Main_Ref to all caps

Modifying the macro name Main_Ref to all caps(MAIN_REF).

Suggested by Nishanth Menon <nm@ti.com>

Signed-off-by: Lesly A M <leslyam@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: David Derrick <dderrick@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Correct the twl4030-power warning print during script loading
Lesly A M [Thu, 14 Apr 2011 12:27:50 +0000 (17:57 +0530)]
mfd: Correct the twl4030-power warning print during script loading

Correcting the if condition check for printing the warning,
if wakeup script is not updated before updating the sleep script.

Since the flag 'order' is set to '1' while updating the wakeup script
for P1P2, the condition checking for printing the warning should be
if(!order) (ie: print the warning if wakeup script is not updated before
updating the sleep script)

Signed-off-by: Lesly A M <leslyam@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: David Derrick <dderrick@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Fix build warning on 88pm860x
Haojian Zhuang [Tue, 26 Apr 2011 09:06:22 +0000 (11:06 +0200)]
mfd: Fix build warning on 88pm860x

WARNING: vmlinux.o(.devinit.text+0x6c4): Section mismatch in reference
from the function device_onkey_init() to the (unknown reference)
.init.data:(unknown)
The function __devinit device_onkey_init() references a (unknown reference)
 __initdata (unknown).
If (unknown) is only used by device_onkey_init then annotate (unknown)
with a matching annotation.

It's caused by using __initdata on mfd cell resources. Replace __initdata
with __devinitdata.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Fix wl1273 warning
Wanlong Gao [Sun, 10 Apr 2011 14:10:26 +0000 (22:10 +0800)]
mfd: Fix wl1273 warning

Remove the unused variable "u16 val" of wl1273-core.c.

Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Continue with IRQ setup even if we don't have PMIC main IRQ
Mark Brown [Mon, 4 Apr 2011 02:59:57 +0000 (11:59 +0900)]
mfd: Continue with IRQ setup even if we don't have PMIC main IRQ

The fact that we can't actually raise any interrupts doesn't stop us
setting up the IRQs we're exporting. While this isn't actually going
to do anything it allows us to proceed further through device setup
during board bringup and avoids issues with the MFD core not letting
us suppress the configuration of IRQ resources.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Provide platform data for WM831x GPIO configuration
Mark Brown [Mon, 4 Apr 2011 02:04:42 +0000 (11:04 +0900)]
mfd: Provide platform data for WM831x GPIO configuration

Allow the GPIO mode of WM831x devices to be configured using platform data.
Users may provide a table of GPIO register values in gpio_defaults[]. In
order to allow 0 to be set explicitly out of range values are accepted and
masked off, with a WM831X_GPIO_CONFIGURE define provided to set an out of
range value.

This can be used to configure higher numbered GPIOs or override values set
in OTP for GPIOs configured using OTP.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Remove compatibility interface for WM831x specific IRQ API
Mark Brown [Mon, 4 Apr 2011 02:04:12 +0000 (11:04 +0900)]
mfd: Remove compatibility interface for WM831x specific IRQ API

The last user was removed in the merge window.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Remove mfd_data
Samuel Ortiz [Fri, 8 Apr 2011 00:04:50 +0000 (02:04 +0200)]
mfd: Remove mfd_data

Cell pointers are passed through device->mfd_cell and platform data
is passed through the MFD cell platform_data pointer.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agoregulator: Use device platform_data to retrieve db8500 platform bits
Samuel Ortiz [Thu, 26 May 2011 08:06:31 +0000 (10:06 +0200)]
regulator: Use device platform_data to retrieve db8500 platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for wm8400 cells platform bits
Samuel Ortiz [Wed, 11 May 2011 08:44:36 +0000 (10:44 +0200)]
mfd: Use mfd cell platform_data for wm8400 cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for davinci cells platform bits
Samuel Ortiz [Wed, 6 Apr 2011 14:39:45 +0000 (16:39 +0200)]
mfd: Use mfd cell platform_data for davinci cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Miguel Aguilar <miguel.aguilar@ridgerun.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for 88pm860x cells platform bits
Samuel Ortiz [Wed, 6 Apr 2011 14:26:56 +0000 (16:26 +0200)]
mfd: Use mfd cell platform_data for 88pm860x cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Richard Purdie <rpurdie@rpsys.net>
Acked-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for tps6105x cells platform bits
Samuel Ortiz [Wed, 11 May 2011 08:33:25 +0000 (10:33 +0200)]
mfd: Use mfd cell platform_data for tps6105x cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for twl4030 codec cells platform bits
Samuel Ortiz [Wed, 6 Apr 2011 13:57:17 +0000 (15:57 +0200)]
mfd: Use mfd cell platform_data for twl4030 codec cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for janz cells platform bits
Samuel Ortiz [Wed, 6 Apr 2011 14:02:25 +0000 (16:02 +0200)]
mfd: Use mfd cell platform_data for janz cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Ira W. Snyder <iws@ovro.caltech.edu>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for mc13xxx cells platform bits
Samuel Ortiz [Thu, 7 Apr 2011 23:55:01 +0000 (01:55 +0200)]
mfd: Use mfd cell platform_data for mc13xxx cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for rdc321x cells platform bits
Samuel Ortiz [Wed, 6 Apr 2011 11:21:01 +0000 (13:21 +0200)]
mfd: Use mfd cell platform_data for rdc321x cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for timberdale cells platform bits
Samuel Ortiz [Thu, 7 Apr 2011 23:23:57 +0000 (01:23 +0200)]
mfd: Use mfd cell platform_data for timberdale cells platform bits

With the addition of a device platform mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomtd: Use platform_data to retrieve tmio_nand platform bits
Samuel Ortiz [Wed, 6 Apr 2011 10:20:49 +0000 (12:20 +0200)]
mtd: Use platform_data to retrieve tmio_nand platform bits

With the addition of the platform device mfd_cell pointer, we can now
cleanly pass the sub device drivers platform data pointers through the
regular device platform_data one, and get rid of mfd_get_data().

Cc: Ian Molton <spyro@f2s.com>
Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agofb: Use platform_data to retrieve tmiofb platform bits
Samuel Ortiz [Wed, 6 Apr 2011 10:13:25 +0000 (12:13 +0200)]
fb: Use platform_data to retrieve tmiofb platform bits

With the addition of the platform device mfd_cell pointer, we can now
cleanly pass the sub device drivers platform data pointers through the
regular device platform_data one, and get rid of mfd_get_data().

Cc: Ian Molton <spyro@f2s.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for wl1273 cells platform bits
Samuel Ortiz [Wed, 6 Apr 2011 09:56:04 +0000 (11:56 +0200)]
mfd: Use mfd cell platform_data for wl1273 cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the
sub drivers MFD agnostic. This is mostly needed for non MFD aware
sub drivers.

Cc: Matti Aaltonen <matti.j.aaltonen@nokia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Pass htc-pasic3 led platform data through the cell platform_data
Samuel Ortiz [Wed, 6 Apr 2011 09:48:53 +0000 (11:48 +0200)]
mfd: Pass htc-pasic3 led platform data through the cell platform_data

Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agow1: Use device platform_data to retrieve ds1wm platform bits
Samuel Ortiz [Wed, 6 Apr 2011 09:41:03 +0000 (11:41 +0200)]
w1: Use device platform_data to retrieve ds1wm platform bits

With the addition of the platform device mfd_cell pointer, we can now
cleanly pass the sub device drivers platform data pointers through the
regular device platform_data one, and get rid of mfd_get_data().

Cc: Matt Reimer <mreimer@vpop.net>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agommc: Use device platform_data to retrieve tmio_mmc platform bits
Samuel Ortiz [Wed, 6 Apr 2011 09:38:14 +0000 (11:38 +0200)]
mmc: Use device platform_data to retrieve tmio_mmc platform bits

With the addition of the platform device mfd_cell pointer, we can now
cleanly pass the sub device drivers platform data pointers through the
regular device platform_data one, and get rid of mfd_get_data()

Cc: Ian Molton <spyro@f2s.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for ab3100 cells platform bits
Samuel Ortiz [Tue, 5 Apr 2011 22:41:43 +0000 (00:41 +0200)]
mfd: Use mfd cell platform_data for ab3100 cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the sub drivers
MFD agnostic. This is mostly needed for non MFD aware sub drivers.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Use mfd cell platform_data for ab3550 cells platform bits
Samuel Ortiz [Tue, 5 Apr 2011 22:20:24 +0000 (00:20 +0200)]
mfd: Use mfd cell platform_data for ab3550 cells platform bits

With the addition of a platform device mfd_cell pointer, MFD drivers
can go back to passing platform data back to their sub drivers.
This allows for an mfd_cell->mfd_data removal and thus keep the sub drivers
MFD agnostic. This is mostly needed for non MFD aware sub drivers.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agomfd: Add platform data pointer back
Samuel Ortiz [Wed, 6 Apr 2011 14:52:52 +0000 (16:52 +0200)]
mfd: Add platform data pointer back

Now that we have a way to pass MFD cells down to the sub drivers,
we can gradually get rid of mfd_data by putting the platform pointer
back in place.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
13 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Thu, 26 May 2011 16:53:20 +0000 (09:53 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (61 commits)
  jbd2: Add MAINTAINERS entry
  jbd2: fix a potential leak of a journal_head on an error path
  ext4: teach ext4_ext_split to calculate extents efficiently
  ext4: Convert ext4 to new truncate calling convention
  ext4: do not normalize block requests from fallocate()
  ext4: enable "punch hole" functionality
  ext4: add "punch hole" flag to ext4_map_blocks()
  ext4: punch out extents
  ext4: add new function ext4_block_zero_page_range()
  ext4: add flag to ext4_has_free_blocks
  ext4: reserve inodes and feature code for 'quota' feature
  ext4: add support for multiple mount protection
  ext4: ensure f_bfree returned by ext4_statfs() is non-negative
  ext4: protect bb_first_free in ext4_trim_all_free() with group lock
  ext4: only load buddy bitmap in ext4_trim_fs() when it is needed
  jbd2: Fix comment to match the code in jbd2__journal_start()
  ext4: fix waiting and sending of a barrier in ext4_sync_file()
  jbd2: Add function jbd2_trans_will_send_data_barrier()
  jbd2: fix sending of data flush on journal commit
  ext4: fix ext4_ext_fiemap_cb() to handle blocks before request range correctly
  ...

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Thu, 26 May 2011 16:52:14 +0000 (09:52 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (25 commits)
  cifs: remove unnecessary dentry_unhash on rmdir/rename_dir
  ocfs2: remove unnecessary dentry_unhash on rmdir/rename_dir
  exofs: remove unnecessary dentry_unhash on rmdir/rename_dir
  nfs: remove unnecessary dentry_unhash on rmdir/rename_dir
  ext2: remove unnecessary dentry_unhash on rmdir/rename_dir
  ext3: remove unnecessary dentry_unhash on rmdir/rename_dir
  ext4: remove unnecessary dentry_unhash on rmdir/rename_dir
  btrfs: remove unnecessary dentry_unhash in rmdir/rename_dir
  ceph: remove unnecessary dentry_unhash calls
  vfs: clean up vfs_rename_other
  vfs: clean up vfs_rename_dir
  vfs: clean up vfs_rmdir
  vfs: fix vfs_rename_dir for FS_RENAME_DOES_D_MOVE filesystems
  libfs: drop unneeded dentry_unhash
  vfs: update dentry_unhash() comment
  vfs: push dentry_unhash on rename_dir into file systems
  vfs: push dentry_unhash on rmdir into file systems
  vfs: remove dget() from dentry_unhash()
  vfs: dentry_unhash immediately prior to rmdir
  vfs: Block mmapped writes while the fs is frozen
  ...

13 years agomm: don't access vm_flags as 'int'
KOSAKI Motohiro [Thu, 26 May 2011 10:16:19 +0000 (19:16 +0900)]
mm: don't access vm_flags as 'int'

The type of vma->vm_flags is 'unsigned long'. Neither 'int' nor
'unsigned int'. This patch fixes such misuse.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
[ Changed to use a typedef - we'll extend it to cover more cases
  later, since there has been discussion about making it a 64-bit
  type..                      - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoxen: cleancache shim to Xen Transcendent Memory
Dan Magenheimer [Thu, 26 May 2011 16:02:21 +0000 (10:02 -0600)]
xen: cleancache shim to Xen Transcendent Memory

This patch provides a shim between the kernel-internal cleancache
API (see Documentation/mm/cleancache.txt) and the Xen Transcendent
Memory ABI (see http://oss.oracle.com/projects/tmem).

Xen tmem provides "hypervisor RAM" as an ephemeral page-oriented
pseudo-RAM store for cleancache pages, shared cleancache pages,
and frontswap pages.  Tmem provides enterprise-quality concurrency,
full save/restore and live migration support, compression
and deduplication.

A presentation showing up to 8% faster performance and up to 52%
reduction in sectors read on a kernel compile workload, despite
aggressive in-kernel page reclamation ("self-ballooning") can be
found at:

http://oss.oracle.com/projects/tmem/dist/documentation/presentations/TranscendentMemoryXenSummit2010.pdf

Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik Van Riel <riel@redhat.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Andreas Dilger <adilger@sun.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: Nitin Gupta <ngupta@vflare.org>
13 years agoocfs2: add cleancache support
Dan Magenheimer [Thu, 26 May 2011 16:02:08 +0000 (10:02 -0600)]
ocfs2: add cleancache support

This eighth patch of eight in this cleancache series "opts-in"
cleancache for ocfs2.  Clustered filesystems must explicitly enable
cleancache by calling cleancache_init_shared_fs anytime an instance
of the filesystem is mounted.  Ocfs2 is currently the only user of
the clustered filesystem interface but nevertheless, the cleancache
hooks in the VFS layer are sufficient for ocfs2 including the matching
cleancache_flush_fs hook which must be called on unmount.

Details and a FAQ can be found in Documentation/vm/cleancache.txt

[v8: trivial merge conflict update]
[v5: jeremy@goop.org: simplify init hook and any future fs init changes]
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik Van Riel <riel@redhat.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Andreas Dilger <adilger@sun.com>
Cc: Ted Tso <tytso@mit.edu>
Cc: Nitin Gupta <ngupta@vflare.org>
13 years agoext4: add cleancache support
Dan Magenheimer [Thu, 26 May 2011 16:02:03 +0000 (10:02 -0600)]
ext4: add cleancache support

This seventh patch of eight in this cleancache series "opts-in"
cleancache for ext4.  Filesystems must explicitly enable cleancache
by calling cleancache_init_fs anytime an instance of the filesystem
is mounted. For ext4, all other cleancache hooks are in
the VFS layer including the matching cleancache_flush_fs
hook which must be called on unmount.

Details and a FAQ can be found in Documentation/vm/cleancache.txt

[v6-v8: no changes]
[v5: jeremy@goop.org: simplify init hook and any future fs init changes]
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Andreas Dilger <adilger@sun.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik Van Riel <riel@redhat.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: Nitin Gupta <ngupta@vflare.org>
13 years agobtrfs: add cleancache support
Dan Magenheimer [Thu, 26 May 2011 16:01:56 +0000 (10:01 -0600)]
btrfs: add cleancache support

This sixth patch of eight in this cleancache series "opts-in"
cleancache for btrfs.  Filesystems must explicitly enable
cleancache by calling cleancache_init_fs anytime an instance
of the filesystem is mounted.  Btrfs uses its own readpage
which must be hooked, but all other cleancache hooks are in
the VFS layer including the matching cleancache_flush_fs hook
which must be called on unmount.

Details and a FAQ can be found in Documentation/vm/cleancache.txt

[v6-v8: no changes]
[v5: jeremy@goop.org: simplify init hook and any future fs init changes]
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik Van Riel <riel@redhat.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Andreas Dilger <adilger@sun.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: Nitin Gupta <ngupta@vflare.org>
13 years agoext3: add cleancache support
Dan Magenheimer [Thu, 26 May 2011 16:01:49 +0000 (10:01 -0600)]
ext3: add cleancache support

This fifth patch of eight in this cleancache series "opts-in"
cleancache for ext3.  Filesystems must explicitly enable
cleancache by calling cleancache_init_fs anytime an instance
of the filesystem is mounted. For ext3, all other cleancache
hooks are in the VFS layer including the matching cleancache_flush_fs
hook which must be called on unmount.

Details and a FAQ can be found in Documentation/vm/cleancache.txt

[v6-v8: no changes]
[v5: jeremy@goop.org: simplify init hook and any future fs init changes]
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Andreas Dilger <adilger@sun.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik Van Riel <riel@redhat.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: Nitin Gupta <ngupta@vflare.org>
13 years agomm/fs: add hooks to support cleancache
Dan Magenheimer [Thu, 26 May 2011 16:01:43 +0000 (10:01 -0600)]
mm/fs: add hooks to support cleancache

This fourth patch of eight in this cleancache series provides the
core hooks in VFS for: initializing cleancache per filesystem;
capturing clean pages reclaimed by page cache; attempting to get
pages from cleancache before filesystem read; and ensuring coherency
between pagecache, disk, and cleancache.  Note that the placement
of these hooks was stable from 2.6.18 to 2.6.38; a minor semantic
change was required due to a patchset in 2.6.39.

All hooks become no-ops if CONFIG_CLEANCACHE is unset, or become
a check of a boolean global if CONFIG_CLEANCACHE is set but no
cleancache "backend" has claimed cleancache_ops.

Details and a FAQ can be found in Documentation/vm/cleancache.txt

[v8: minchan.kim@gmail.com: adapt to new remove_from_page_cache function]
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik Van Riel <riel@redhat.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Andreas Dilger <adilger@sun.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: Nitin Gupta <ngupta@vflare.org>
13 years agomm: cleancache core ops functions and config
Dan Magenheimer [Thu, 26 May 2011 16:01:36 +0000 (10:01 -0600)]
mm: cleancache core ops functions and config

This third patch of eight in this cleancache series provides
the core code for cleancache that interfaces between the hooks in
VFS and individual filesystems and a cleancache backend.  It also
includes build and config patches.

Two new files are added: mm/cleancache.c and include/linux/cleancache.h.

Note that CONFIG_CLEANCACHE can default to on; in systems that do
not provide a cleancache backend, all hooks devolve to a simple
check of a global enable flag, so performance impact should
be negligible but can be reduced to zero impact if config'ed off.
However for this first commit, it defaults to off.

Details and a FAQ can be found in Documentation/vm/cleancache.txt

Credits: Cleancache_ops design derived from Jeremy Fitzhardinge
design for tmem

[v8: dan.magenheimer@oracle.com: fix exportfs call affecting btrfs]
[v8: akpm@linux-foundation.org: use static inline function, not macro]
[v7: dan.magenheimer@oracle.com: cleanup sysfs and remove cleancache prefix]
[v6: JBeulich@novell.com: robustly handle buggy fs encode_fh actor definition]
[v5: jeremy@goop.org: clean up global usage and static var names]
[v5: jeremy@goop.org: simplify init hook and any future fs init changes]
[v5: hch@infradead.org: cleaner non-global interface for ops registration]
[v4: adilger@sun.com: interface must support exportfs FS's]
[v4: hch@infradead.org: interface must support 64-bit FS on 32-bit kernel]
[v3: akpm@linux-foundation.org: use one ops struct to avoid pointer hops]
[v3: akpm@linux-foundation.org: document and ensure PageLocked reqts are met]
[v3: ngupta@vflare.org: fix success/fail codes, change funcs to void]
[v2: viro@ZenIV.linux.org.uk: use sane types]
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Minchan Kim <minchan.kim@gmail.com>
Acked-by: Andreas Dilger <adilger@sun.com>
Acked-by: Jan Beulich <JBeulich@novell.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik Van Riel <riel@redhat.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
13 years agofs: add field to superblock to support cleancache
Dan Magenheimer [Thu, 26 May 2011 16:01:19 +0000 (10:01 -0600)]
fs: add field to superblock to support cleancache

This second patch of eight in this cleancache series adds a field to
the generic superblock to squirrel away a pool identifier that is
dynamically provided by cleancache-enabled filesystems at mount time
to uniquely identify files and pages belonging to this mounted filesystem.

Details and a FAQ can be found in Documentation/vm/cleancache.txt

[v8: trivial merge conflict update]
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik Van Riel <riel@redhat.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Andreas Dilger <adilger@sun.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: Nitin Gupta <ngupta@vflare.org>
13 years agomm/fs: cleancache documentation
Dan Magenheimer [Thu, 26 May 2011 16:00:56 +0000 (10:00 -0600)]
mm/fs: cleancache documentation

This patchset introduces cleancache, an optional new feature exposed
by the VFS layer that potentially dramatically increases page cache
effectiveness for many workloads in many environments at a negligible
cost.  It does this by providing an interface to transcendent memory,
which is memory/storage that is not otherwise visible to and/or directly
addressable by the kernel.

Instead of being discarded, hooks in the reclaim code "put" clean
pages to cleancache.  Filesystems that "opt-in" may "get" pages
from cleancache that were previously put, but pages in cleancache are
"ephemeral", meaning they may disappear at any time. And the size
of cleancache is entirely dynamic and unknowable to the kernel.
Filesystems currently supported by this patchset include ext3, ext4,
btrfs, and ocfs2.  Other filesystems (especially those built entirely
on VFS) should be easy to add, but should first be thoroughly tested to
ensure coherency.

Details and a FAQ are provided in Documentation/vm/cleancache.txt

This first patch of eight in this cleancache series only adds two
new documentation files.

[v8: minor documentation changes by author]
[v3: akpm@linux-foundation.org: document sysfs API]
[v3: hch@infradead.org: move detailed description to Documentation/vm]
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik Van Riel <riel@redhat.com>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Andreas Dilger <adilger@sun.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <joel.becker@oracle.com>
Cc: Nitin Gupta <ngupta@vflare.org>
13 years agojbd2: Add MAINTAINERS entry
Theodore Ts'o [Thu, 26 May 2011 13:53:09 +0000 (09:53 -0400)]
jbd2: Add MAINTAINERS entry

Create a separate MAINTAINERS entry for jbd2

Cc: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
13 years agocifs: remove unnecessary dentry_unhash on rmdir/rename_dir
Sage Weil [Tue, 24 May 2011 20:06:22 +0000 (13:06 -0700)]
cifs: remove unnecessary dentry_unhash on rmdir/rename_dir

Cifs has no problems with lingering references to unlinked directory
inodes.

CC: Steve French <sfrench@samba.org>
CC: linux-cifs@vger.kernel.org
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoocfs2: remove unnecessary dentry_unhash on rmdir/rename_dir
Sage Weil [Tue, 24 May 2011 20:06:21 +0000 (13:06 -0700)]
ocfs2: remove unnecessary dentry_unhash on rmdir/rename_dir

Ocfs2 has no issues with lingering references to unlinked directory inodes.

CC: Mark Fasheh <mfasheh@suse.com>
CC: ocfs2-devel@oss.oracle.com
Acked-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoexofs: remove unnecessary dentry_unhash on rmdir/rename_dir
Sage Weil [Tue, 24 May 2011 20:06:20 +0000 (13:06 -0700)]
exofs: remove unnecessary dentry_unhash on rmdir/rename_dir

Exofs has no problems with lingering references to unlinked directory
inodes.

CC: Benny Halevy <bhalevy@panasas.com>
CC: osd-dev@open-osd.org
Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agonfs: remove unnecessary dentry_unhash on rmdir/rename_dir
Sage Weil [Tue, 24 May 2011 20:06:19 +0000 (13:06 -0700)]
nfs: remove unnecessary dentry_unhash on rmdir/rename_dir

NFS has no problems with lingering references to unlinked directory
inodes.

CC: Trond Myklebust <Trond.Myklebust@netapp.com>
CC: linux-nfs@vger.kernel.org
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
13 years agoext2: remove unnecessary dentry_unhash on rmdir/rename_dir
Sage Weil [Tue, 24 May 2011 20:06:18 +0000 (13:06 -0700)]
ext2: remove unnecessary dentry_unhash on rmdir/rename_dir

ext2 has no problems with lingering references to unlinked directory
inodes.

CC: Jan Kara <jack@suse.cz>
CC: linux-ext4@vger.kernel.org
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>