Commit Graph

370740 Commits

Author SHA1 Message Date
Linus Torvalds 99c6bcf46d Merge tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC multiplatform updates from Olof Johansson:
 "More multiplatform enablement for ARM platforms.  The ones converted
  in this branch are:

   - bcm2835
   - cns3xxx
   - sirf
   - nomadik
   - msx
   - spear
   - tegra
   - ux500

  We're getting close to having most of them converted!

  One of the larger platforms remaining is Samsung Exynos, and there are
  a bunch of supporting patches in this merge window for it.  There was
  a patch in this branch to a early version of multiplatform conversion,
  but it ended up being reverted due to need of more bake time.  The
  revert commit is part of the branch since it would have required
  rebasing multiple dependent branches and they were stable by then"

* tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits)
  mmc: sdhci-s3c: Fix operation on non-single image Samsung platforms
  clocksource: nomadik-mtu: fix up clocksource/timer
  Revert "ARM: exynos: enable multiplatform support"
  ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ"
  ARM: exynos: enable multiplatform support
  rtc: s3c: make header file local
  mtd: onenand/samsung: make regs-onenand.h file local
  thermal/exynos: remove unnecessary header inclusions
  mmc: sdhci-s3c: remove platform dependencies
  ARM: samsung: move mfc device definition to s5p-dev-mfc.c
  ARM: exynos: move debug-macro.S to include/debug/
  ARM: exynos: prepare for sparse IRQ
  ARM: exynos: introduce EXYNOS_ATAGS symbol
  ARM: tegra: build assembly files with -march=armv7-a
  ARM: Push selects for TWD/SCU into machine entries
  ARM: ux500: build hotplug.o for ARMv7-a
  ARM: ux500: move to multiplatform
  ARM: ux500: make remaining headers local
  ARM: ux500: make irqs.h local to platform
  ARM: ux500: get rid of <mach/[hardware|db8500-regs].h>
  ...
2013-05-02 09:38:16 -07:00
Linus Torvalds 97b1007a29 Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Olof Johansson:
 "This branch contains part 1 of the platform updates for 3.10.  Among
  the highlights:

   - Support for the new Atmel Cortex-A5 based platforms (SAMA5D3)
   - New support for CSR SiRFatlas6 SoCs
   - A handful of updates for NVidia T114 (a.k.a. Tegra 4)
   - A bunch of updates for the shmobile platforms
   - A handful of updates for davinci
   - A few updates for Qualcomm MSM
   - Plus a handful of other patches, defconfig updates, etc."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (135 commits)
  ARM: tegra: pm: fix build error w/o PM_SLEEP
  ARM: davinci: ensure global variables are declared
  ARM: davinci: sram.c: fix incorrect type in assignment
  ARM: davinci: da8xx dt: make file local symbols static
  ARM: davinci: da8xx: add remoteproc support
  ARM: socfpga: Upgrade clk driver for socfpga to make use of dts clock entries
  ARM: socfpga: Add clock entries into device tree
  ARM: socfpga: Enable soft reset
  ARM: EXYNOS: replace cpumask by the corresponding macro
  ARM: EXYNOS: handle properly the return values
  ARM: EXYNOS: factor out the idle states
  ARM: OMAP4: Enable fix for Cortex-A9 erratas
  ARM: OMAP2+: Export SoC information to userspace
  ARM: OMAP2+: SoC name and revision unification
  ARM: OMAP2+: Move common part of late init into common function
  ARM: tegra: pm: remove duplicated include from pm.c
  ARM: davinci: da850: override mmc DT node device name
  ARM: davinci: da850: add mmc DT entries
  mmc: davinci_mmc: add DT support
  ARM: SAMSUNG: check processor type before cache restoration in resume
  ...
2013-05-02 09:31:45 -07:00
Linus Torvalds dfab34aa61 Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device-tree updates from Olof Johansson:
 "Part 1 of device-tree updates for 3.10.  The bulk of the churn in this
  branch is due to i.MX moving from C-defined pin control over to device
  tree, which is a one-time conversion that will allow greater
  flexibility down the road.

  Besides that, there's PCI-e bindings for Marvell mvebu platforms and a
  handful of cleanups to tegra due to the new include file functionality
  of the device tree compiler"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (113 commits)
  arm: mvebu: PCIe Device Tree informations for Armada XP GP
  arm: mvebu: PCIe Device Tree informations for Armada 370 DB
  arm: mvebu: PCIe Device Tree informations for Armada 370 Mirabox
  arm: mvebu: PCIe Device Tree informations for Armada XP DB
  arm: mvebu: PCIe Device Tree informations for OpenBlocks AX3-4
  arm: mvebu: add PCIe Device Tree informations for Armada XP
  arm: mvebu: add PCIe Device Tree informations for Armada 370
  ARM: sunxi: unify osc24M_fixed and osc24M
  arm: vt8500: Add SDHC support to WM8505 DT
  ARM: dts: Add a 64 bits version of the skeleton device tree
  ARM: mvebu: Add Device Bus and CFI flash memory support to defconfig
  ARM: mvebu: Add support for NOR flash device on Openblocks AX3 board
  ARM: mvebu: Add support for NOR flash device on Armada XP-GP board
  ARM: mvebu: Add Device Bus support for Armada 370/XP SoC
  ARM: dts: imx6dl-wandboard: Add USB Host support
  ARM: dts: imx51 cpu node
  ARM: dts: Add missing imx27-phytec-phycore dtb target
  ARM: dts: Add NFC support for i.MX27 Phytec PCM038 module
  ARM: i.MX51: Add PATA support
  ARM: dts: Add initial support for Wandboard Dual-Lite
  ...
2013-05-02 09:28:03 -07:00
Linus Torvalds a7726350e0 Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanup from Olof Johansson:
 "Here is a collection of cleanup patches.  Among the pieces that stand
  out are:

   - The deletion of h720x platforms
   - Split of at91 non-dt platforms to their own Kconfig file to keep
     them separate
   - General cleanups and refactoring of i.MX and MXS platforms
   - Some restructuring of clock tables for OMAP
   - Convertion of PMC driver for Tegra to dt-only
   - Some renames of sunxi -> sun4i (Allwinner A10)
   - ... plus a bunch of other stuff that I haven't mentioned"

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits)
  ARM: i.MX: remove unused ARCH_* configs
  ARM i.MX53: remove platform ahci support
  ARM: sunxi: Rework the restart code
  irqchip: sunxi: Rename sunxi to sun4i
  irqchip: sunxi: Make use of the IRQCHIP_DECLARE macro
  clocksource: sunxi: Rename sunxi to sun4i
  clocksource: sunxi: make use of CLKSRC_OF
  clocksource: sunxi: Cleanup the timer code
  ARM: at91: remove trailing semicolon from macros
  ARM: at91/setup: fix trivial typos
  ARM: EXYNOS: remove "config EXYNOS_DEV_DRM"
  ARM: EXYNOS: change the name of USB ohci header
  ARM: SAMSUNG: Remove unnecessary code for dma
  ARM: S3C24XX: Remove unused GPIO drive strength register definitions
  ARM: OMAP4+: PM: Restore CPU power state to ON with clockdomain force wakeup method
  ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2412
  ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2410
  ARM: S3C24XX: Removed unneeded dependency on ARCH_S3C24XX for boards
  ARM: SAMSUNG: Fix typo "CONFIG_SAMSUNG_DEV_RTC"
  ARM: S5P64X0: Fix typo "CONFIG_S5P64X0_SETUP_SDHCI"
  ...
2013-05-02 09:03:55 -07:00
Linus Torvalds 4d26aa3054 Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC non-critical fixes from Olof Johansson:
 "Here is a collection of fixes (and some intermixed cleanups) that were
  considered less important and thus not included in the later parts of
  the 3.9-rc cycle.

  It's a bit all over the map, contents wise.  A series of ux500 fixes
  and cleanups, a bunch of various fixes for OMAP and tegra, and some
  for Freescale i.MX and even Qualcomm MSM.

  Note that there's also a patch on this branch to globally turn off
  -Wmaybe-uninitialized when building with -Os.  It's been posted
  several times by Arnd and no dissent was raised, but nobody seemed
  interested to pick it up.  So here it is, as the topmost patch."

* tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits)
  Turn off -Wmaybe-uninitialized when building with -Os
  ARM: orion5x: include linux/cpu.h
  ARM: tegra: call cpu_do_idle from C code
  ARM: u300: fix ages old copy/paste bug
  ARM: OMAP2+: add dependencies on ARCH_MULTI_V6/V7
  ARM: tegra: solve adr range issue with THUMB2_KERNEL enabled
  ARM: tegra: fix relocation truncated error when THUMB2_KERNEL enabled
  ARM: tegra: fix build error when THUMB2_KERNEL enabled
  ARM: msm: Fix uncompess.h tx underrun check
  ARM: vexpress: Remove A9 PMU compatible values for non-A9 platforms
  ARM: cpuimx27 and mbimx27: prepend CONFIG_ to Kconfig macro
  ARM: OMAP2+: fix typo "CONFIG_BRIDGE_DVFS"
  ARM: OMAP1: remove "config MACH_OMAP_HTCWIZARD"
  ARM: mach-imx: mach-imx6q: Fix sparse warnings
  ARM: mach-imx: src: Include "common.h
  ARM: mach-imx: gpc: Include "common.h"
  ARM: mach-imx: avic: Staticize *avic_base
  ARM: mach-imx: tzic: Staticize *tzic_base
  ARM: mach-imx: clk: Include "clk.h"
  ARM: mach-imx: clk-busy: Staticize clk_busy_mux_ops
  ...
2013-05-02 08:56:55 -07:00
Al Viro 600fe9751a ipc_schedule_free() can do vfree() directly now
Commit 32fcfd4071 ("make vfree() safe to call from interrupt
contexts") made it safe to do vfree directly from the RCU callback,
which allows us to simplify ipc/util.c a lot by getting rid of the
differences between vmalloc/kmalloc memory.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-02 08:03:33 -07:00
David Miller 4ada8db38a net: Restore NETIF_F_* bit ordering.
Commit 8ad227ff89 ("net: vlan: add 802.1ad support") added some new
NETIF_F_* features bits, but it added them in the middle of existing
values.

Userland depends upon the flag bits via the per-netdevice 'flags' sysfs
file.

So restore the previous ordering by adding the new flags at the end.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-02 07:34:58 -07:00
Linus Torvalds 20b4fb4852 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS updates from Al Viro,

Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).

7kloc removed.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
  don't bother with deferred freeing of fdtables
  proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
  proc: Make the PROC_I() and PDE() macros internal to procfs
  proc: Supply a function to remove a proc entry by PDE
  take cgroup_open() and cpuset_open() to fs/proc/base.c
  ppc: Clean up scanlog
  ppc: Clean up rtas_flash driver somewhat
  hostap: proc: Use remove_proc_subtree()
  drm: proc: Use remove_proc_subtree()
  drm: proc: Use minor->index to label things, not PDE->name
  drm: Constify drm_proc_list[]
  zoran: Don't print proc_dir_entry data in debug
  reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
  proc: Supply an accessor for getting the data from a PDE's parent
  airo: Use remove_proc_subtree()
  rtl8192u: Don't need to save device proc dir PDE
  rtl8187se: Use a dir under /proc/net/r8180/
  proc: Add proc_mkdir_data()
  proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
  proc: Move PDE_NET() to fs/proc/proc_net.c
  ...
2013-05-01 17:51:54 -07:00
Linus Torvalds b9394d8a65 Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/efi changes from Peter Anvin:
 "The bulk of these changes are cleaning up the efivars handling and
  breaking it up into a tree of files.  There are a number of fixes as
  well.

  The entire changeset is pretty big, but most of it is code movement.

  Several of these commits are quite new; the history got very messed up
  due to a mismerge with the urgent changes for rc8 which completely
  broke IA64, and so Ingo requested that we rebase it to straighten it
  out."

* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: remove "kfree(NULL)"
  efi: locking fix in efivar_entry_set_safe()
  efi, pstore: Read data from variable store before memcpy()
  efi, pstore: Remove entry from list when erasing
  efi, pstore: Initialise 'entry' before iterating
  efi: split efisubsystem from efivars
  efivarfs: Move to fs/efivarfs
  efivars: Move pstore code into the new EFI directory
  efivars: efivar_entry API
  efivars: Keep a private global pointer to efivars
  efi: move utf16 string functions to efi.h
  x86, efi: Make efi_memblock_x86_reserve_range more readable
  efivarfs: convert to use simple_open()
2013-05-01 15:51:46 -07:00
James Hogan 126de6b20b linkage.h: fix build breakage due to symbol prefix handling
Al's commit e1b5bb6d12 ("consolidate cond_syscall and SYSCALL_ALIAS
declarations") broke the build on blackfin and metag due to the
following code:

  #ifndef SYMBOL_NAME
  #ifdef CONFIG_SYMBOL_PREFIX
  #define SYMBOL_NAME(x) CONFIG_SYMBOL_PREFIX ## x
  #else
  #define SYMBOL_NAME(x) x
  #endif
  #endif
  #define __SYMBOL_NAME(x) __stringify(SYMBOL_NAME(x))

__stringify literally stringifies CONFIG_SYMBOL_PREFIX ##x, so you get
lines like this in kernel/sys_ni.s:

  .weak CONFIG_SYMBOL_PREFIXsys_quotactl
  .set CONFIG_SYMBOL_PREFIXsys_quotactl,CONFIG_SYMBOL_PREFIXsys_ni_syscall

The patches in Rusty's modules-next tree such as "CONFIG_SYMBOL_PREFIX:
cleanup." cleans up the whole mess around symbol prefixes, so this patch
just attempts to fix the build in the meantime.

The intermediate definition of SYMBOL_NAME above isn't used and is
incorrect when CONFIG_SYMBOL_PREFIX is defined as CONFIG_SYMBOL_PREFIX
is a quoted string literal, so define __SYMBOL_NAME directly depending
on CONFIG_SYMBOL_PREFIX.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Mea-culpa-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: uclinux-dist-devel@blackfin.uclinux.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-01 15:51:29 -07:00
Al Viro ac3e3c5b11 don't bother with deferred freeing of fdtables
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:31:42 -04:00
Al Viro 094dd33b17 Merge branch 'vfree' into for-next 2013-05-01 17:31:27 -04:00
David Howells 59d8053f1e proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
Move non-public declarations and definitions from linux/proc_fs.h to
fs/proc/internal.h.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:47 -04:00
David Howells c30480b92c proc: Make the PROC_I() and PDE() macros internal to procfs
Make the PROC_I() and PDE() macros internal to procfs.  This means making
PDE_DATA() out of line.  This could be made more optimal by storing
PDE()->data into inode->i_private.

Also provide a __PDE_DATA() that is inline and internal to procfs.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:47 -04:00
David Howells a8ca16ea7b proc: Supply a function to remove a proc entry by PDE
Supply a function (proc_remove()) to remove a proc entry (and any subtree
rooted there) by proc_dir_entry pointer rather than by name and (optionally)
root dir entry pointer.  This allows us to eliminate all remaining pde->name
accesses outside of procfs.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Grant Likely <grant.likely@linaro.or>
cc: linux-acpi@vger.kernel.org
cc: openipmi-developer@lists.sourceforge.net
cc: devicetree-discuss@lists.ozlabs.org
cc: linux-pci@vger.kernel.org
cc: netdev@vger.kernel.org
cc: netfilter-devel@vger.kernel.org
cc: alsa-devel@alsa-project.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:46 -04:00
Al Viro 8d8b97ba49 take cgroup_open() and cpuset_open() to fs/proc/base.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:46 -04:00
David Howells 4c23782091 ppc: Clean up scanlog
Clean up the pseries scanlog driver's use of procfs:

 (1) Don't need to save the proc_dir_entry pointer as we have the filename to
     remove with.

 (2) Save the scan log buffer pointer in a static variable (there is only one
     of it) and don't save it in the PDE (which doesn't have a destructor).

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
cc: Paul Mackerras <paulus@samba.org>
cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:45 -04:00
David Howells e8eeded3c5 ppc: Clean up rtas_flash driver somewhat
Clean up some of the problems with the rtas_flash driver:

 (1) It shouldn't fiddle with the internals of the procfs filesystem (altering
     pde->count).

 (2) If pid namespaces are in effect, then you can get multiple inodes
     connected to a single pde, thereby rendering the pde->count > 2 test
     useless.

 (3) The pde->count fudging doesn't work for forked, dup'd or cloned file
     descriptors, so add static mutexes and use them to wrap access to the
     driver through read, write and release methods.

 (4) The driver can only handle one device, so allocate most of the data
     previously attached to the pde->data as static variables instead (though
     allocate the validation data buffer with kmalloc).

 (5) We don't need to save the pde pointers as long as we have the filenames
     available for removal.

 (6) Don't try to multiplex what the update file read method does based on the
     filename.  Instead provide separate file ops and split the function.

Whilst we're at it, tabulate the procfile information and loop through it when
creating or destroying them rather than manually coding each one.

[Folded fixes from Vasant Hegde <hegdevasant@linux.vnet.ibm.com>]

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
cc: Paul Mackerras <paulus@samba.org>
cc: Anton Blanchard <anton@samba.org>
cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:45 -04:00
David Howells 819695abb7 hostap: proc: Use remove_proc_subtree()
Use remove_proc_subtree() rather than remove_proc_entry() to remove a
device-specific proc directory and all its children.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jouni Malinen <j@w1.fi>
cc: Johannes Berg <johannes@sipsolutions.net>
cc: linux-wireless@vger.kernel.org
cc: devel@driverdev.osuosl.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:45 -04:00
David Howells 8bc742e13f drm: proc: Use remove_proc_subtree()
Use remove_proc_subtree() rather than remove_proc_entry() to remove a
minor-specific drm proc directory and all its children.

Things could theoretically be improved by storing the drm_minor pointer in the
minor-specific dir proc_dir_entry struct data and then scrapping the list of
proc files - but that's shared with the debugfs interface where you can't do
that, so I don't see an easy way of doing it.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: dri-devel@lists.freedesktop.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:44 -04:00
David Howells b63e6aa502 drm: proc: Use minor->index to label things, not PDE->name
Use minor->index to label things, not the name field from the proc_dir_entry
of the /proc/dwm/<minor>/ directory.

Also, use "%u" not "%d" to render the value and use a 12-byte buffer in which
to render the integer, not a 16-byte buffer.  The longest string an unsigned
int can give you is 10 chars (4294967295) plus a NUL, so round up to 12 as the
stack is likely to be 4- or 8-byte aligned.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: dri-devel@lists.freedesktop.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:44 -04:00
David Howells ce089b5472 drm: Constify drm_proc_list[]
Constify drm_proc_list[] and related pointers.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: dri-devel@lists.freedesktop.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:43 -04:00
David Howells 0c2f343825 zoran: Don't print proc_dir_entry data in debug
Don't print proc_dir_entry data in debug as we're soon to have no direct
access to the contents of the PDE.  Print what was put in there instead.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: mjpeg-users@lists.sourceforge.net
cc: linux-media@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:43 -04:00
David Howells e42270a19e reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
Don't access the proc_dir_entry in ReiserFS's r_open(), r_start() r_show()
procfs interface functions.

ReiserFS stores the ->show() method pointer in PDE->data and the super_block
pointer in PDE->parent->data.  This isn't changing.

Currently, ReiserFS passes the PDE pointer into seq_file::private from
r_open() so that r_start() and r_show() can then access it.  Instead, use
seq_open_private() to allocate a two-pointer struct that's passed through
seq_file::private and put the ->show() method and the sb pointers in there.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: reiserfs-devel@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:43 -04:00
David Howells 4a520d2769 proc: Supply an accessor for getting the data from a PDE's parent
Supply an accessor function for getting the private data from the parent
proc_dir_entry struct of the proc_dir_entry struct associated with an inode.

ReiserFS, for instance, stores the super_block pointer in the proc directory
it makes for that super_block, and a pointer to the respective seq_file show
function in each of the proc files in that directory.

This allows a reduction in the number of file_operations structs, open
functions and seq_operations structs required.  The problem otherwise is that
each show function requires two pieces of data but only has storage for one
per PDE (and this has no release function).

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Jerry Chuang <jerry-chuang@realtek.com>
cc: Maxim Mikityanskiy <maxtram95@gmail.com>
cc: YAMANE Toshiaki <yamanetoshi@gmail.com>
cc: linux-wireless@vger.kernel.org
cc: linux-scsi@vger.kernel.org
cc: devel@driverdev.osuosl.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-01 17:29:42 -04:00