04 Jul, 2013
1 commit
-
Pull "exotic" arch fixes from Geert Uytterhoeven:
"This is a collection of several exotic architecture fixes, and a few
other fixes for issues that were detected while doing the former"* 'exotic-arch-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (35 commits)
lib: Move fonts from drivers/video/console/ to lib/fonts/
console/font: Refactor font support code selection logic
Revert "staging/solo6x10: depend on CONFIG_FONTS"
input: cros_ec_keyb_clear_keyboard() depends on CONFIG_PM_SLEEP
score: Wire up asm-generic/xor.h
score: Remove unneeded
openrisc: Wire up asm-generic/xor.h
h8300/boot: Use POSIX "$((..))" instead of bashism "$[...]"
h8300: Mark H83002 and H83048 CPU support broken
h8300: Switch h8300 to drivers/Kconfig
h8300: Limit timer channel ranges in Kconfig
h8300: Wire up asm-generic/xor.h
h8300: Fill the system call table using a CALL() macro
h8300: Fix
h8300: Hardcode symbol prefixes in asm sources
h8300: add missing definition for read_barries_depends()
frv: head.S - Remove commented-out initialization code
cris: Wire up asm-generic/vga.h
parport: disable PC-style parallel port support on cris
console: Disable VGA text console support on cris
...
28 Jun, 2013
1 commit
-
Several drivers need font support independent of CONFIG_VT, cfr. commit
9cbce8d7e1dae0744ca4f68d62aa7de18196b6f4, "console/font: Refactor font
support code selection logic").
Hence move the fonts and their support logic from drivers/video/console/ to
its own library directory lib/fonts/.
This also allows to limit processing of drivers/video/console/Makefile to
CONFIG_VT=y again.[Kevin Hilman : Update arch/arm/boot/compressed/Makefile]
Signed-off-by: Geert Uytterhoeven
06 Jun, 2013
1 commit
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Since we have at least one user of this function outside of CONFIG_NET
scope, we have to provide this function independently. The proposed
solution is to move it under lib/net_utils.c with corresponding
configuration variable and select wherever it is needed.Signed-off-by: Andy Shevchenko
Reported-by: Arnd Bergmann
Acked-by: David S. Miller
Acked-by: Arnd Bergmann
Signed-off-by: Greg Kroah-Hartman
16 Apr, 2013
1 commit
-
We want to be able to use the utf16 functions that are currently present
in the EFI variables code in platform-specific code as well. Move them to
the kernel core, and in the process rename them to accurately describe what
they do - they don't handle UTF16, only UCS2.Signed-off-by: Matthew Garrett
Signed-off-by: Matt Fleming
18 Jan, 2013
1 commit
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The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.CC: Andrew Morton
Acked-by: Paul E. McKenney
CC: Dmitry Kasatkin
CC: James Morris
CC: "Michael S. Tsirkin"
CC: Akinobu Mita
CC: Ingo Molnar
Cc: Greg Kroah-Hartman
Signed-off-by: Kees Cook
Acked-by: Catalin Marinas
Signed-off-by: Greg Kroah-Hartman
18 Dec, 2012
1 commit
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Currently only block_dev and uprobes use percpu_rw_semaphore,
add the config option selected by BLOCK || UPROBES.Signed-off-by: Oleg Nesterov
Cc: Anton Arapov
Cc: Ingo Molnar
Cc: Linus Torvalds
Cc: Michal Marek
Cc: Mikulas Patocka
Cc: "Paul E. McKenney"
Cc: Peter Zijlstra
Cc: Srikar Dronamraju
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Oct, 2012
1 commit
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Implement a simple static OID registry that allows the mapping of an encoded
OID to an enum value for ease of use.The OID registry index enum appears in the:
linux/oid_registry.h
header file. A script generates the registry from lines in the header file
that look like:OID_foo,/*1.2.3.4*/
The actual OID is taken to be represented by the numbers with interpolated
dots in the comment.All other lines in the header are ignored.
The registry is queries by calling:
OID look_up_oid(const void *data, size_t datasize);
This returns a number from the registry enum representing the OID if found or
OID__NR if not.Signed-off-by: David Howells
Signed-off-by: Rusty Russell
31 Jul, 2012
3 commits
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Merge Andrew's first set of patches:
"Non-MM patches:- lots of misc bits
- tree-wide have_clk() cleanups
- quite a lot of printk tweaks. I draw your attention to "printk:
convert the format for KERN_ to a 2 byte pattern" which
looks a bit scary. But afaict it's solid.- backlight updates
- lib/ feature work (notably the addition and use of memweight())
- checkpatch updates
- rtc updates
- nilfs updates
- fatfs updates (partial, still waiting for acks)
- kdump, proc, fork, IPC, sysctl, taskstats, pps, etc
- new fault-injection feature work"
* Merge emailed patches from Andrew Morton : (128 commits)
drivers/misc/lkdtm.c: fix missing allocation failure check
lib/scatterlist: do not re-write gfp_flags in __sg_alloc_table()
fault-injection: add tool to run command with failslab or fail_page_alloc
fault-injection: add selftests for cpu and memory hotplug
powerpc: pSeries reconfig notifier error injection module
memory: memory notifier error injection module
PM: PM notifier error injection module
cpu: rewrite cpu-notifier-error-inject module
fault-injection: notifier error injection
c/r: fcntl: add F_GETOWNER_UIDS option
resource: make sure requested range is included in the root range
include/linux/aio.h: cpp->C conversions
fs: cachefiles: add support for large files in filesystem caching
pps: return PTR_ERR on error in device_create
taskstats: check nla_reserve() return
sysctl: suppress kmemleak messages
ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION
ipc: compat: use signed size_t types for msgsnd and msgrcv
ipc: allow compat IPC version field parsing if !ARCH_WANT_OLD_COMPAT_IPC
ipc: add COMPAT_SHMLBA support
... -
Introduce CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE and use this instead
of the multitude of #if defined() checks in atomic64_test.cSigned-off-by: Catalin Marinas
Cc: Russell King
Cc: Ralf Baechle
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pull MIPS updates from Ralf Baechle:
"More hardware support across the field including a bunch of device
drivers. The highlight however really are further steps towards
device tree.This has been sitting in -next for ages. All MIPS _defconfigs have
been tested to boot or where I don't have hardware available, to at
least build fine."* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (77 commits)
MIPS: Loongson 1B: Add defconfig
MIPS: Loongson 1B: Add board support
MIPS: Netlogic: early console fix
MIPS: Netlogic: Fix indentation of smpboot.S
MIPS: Netlogic: remove cpu_has_dc_aliases define for XLP
MIPS: Netlogic: Remove unused pcibios_fixups
MIPS: Netlogic: Add XLP SoC devices in FDT
MIPS: Netlogic: Add IRQ mappings for more devices
MIPS: Netlogic: USB support for XLP
MIPS: Netlogic: XLP PCIe controller support.
MIPS: Netlogic: Platform changes for XLR/XLS I2C
MIPS: Netlogic: Platform NAND/NOR flash support
MIPS: Netlogic: Platform changes for XLS USB
MIPS: Netlogic: Remove NETLOGIC_ prefix
MIPS: Netlogic: SMP wakeup code update
MIPS: Netlogic: Update comments in smpboot.S
MIPS: BCM63XX: Add 96328avng reference board
MIPS: Expose PCIe drivers for MIPS
MIPS: BCM63XX: Add PCIe Support for BCM6328
MIPS: BCM63XX: Move the PCI initialization into its own function
...
23 Jul, 2012
1 commit
-
libfdt is part of the device tree support in scripts/dtc/libfdt. For
some platforms that use the Device Tree, we want to be able to edit
the flattened device tree form.We don't want to burden kernel builds that do not require it, so we
gate compilation of libfdt files with CONFIG_LIBFDT. So if it is
needed, you need to do this in your Kconfig:select LIBFDT
And in the Makefile of the code using libfdt something like:
ccflags-y := -I$(src)/../../../scripts/dtc/libfdt
Signed-off-by: David Daney
Cc: linux-mips@linux-mips.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Grant Likely
Cc: linux-kernel@vger.kernel.org
Acked-by: Rob Herring
Signed-off-by: Ralf Baechle
10 Jun, 2012
1 commit
27 May, 2012
3 commits
-
This makes actually live up to its promise of
allowing architectures to help tune the string functions that do their
work a word at a time.David had already taken the x86 strncpy_from_user() function, modified
it to work on sparc, and then done the extra work to make it generically
useful. This then expands on that work by making x86 use that generic
version, completing the circle.But more importantly, it fixes up the word-at-a-time interfaces so that
it's now easy to also support things like strnlen_user(), and pretty
much most random string functions.David reports that it all works fine on sparc, and Jonas Bonn reported
that an earlier version of this worked on OpenRISC too. It's pretty
easy for architectures to add support for this and just replace their
private versions with the generic code.* generic-string-functions:
sparc: use the new generic strnlen_user() function
x86: use the new generic strnlen_user() function
lib: add generic strnlen_user() function
word-at-a-time: make the interfaces truly generic
x86: use generic strncpy_from_user routine -
Pull arm-soc stmp-dev library code from Olof Johansson:
"A number of devices are using a common register layout, this adds
support code for it in lib/stmp_device.c so we do not need to
duplicate it in each driver."Fix up trivial conflicts in drivers/i2c/busses/i2c-mxs.c and
lib/Makefile* tag 'stmp-dev' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
i2c: mxs: use global reset function
lib: add support for stmp-style devices -
This adds a new generic optimized strnlen_user() function that uses the
infrastructure to portably do efficient string
handling.In many ways, strnlen is much simpler than strncpy, and in particular we
can always pre-align the words we load from memory. That means that all
the worries about alignment etc are a non-issue, so this one can easily
be used on any architecture. You obviously do have to do the
appropriate word-at-a-time.h macros.Signed-off-by: Linus Torvalds
26 May, 2012
1 commit
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This reverts commit 7e8dec918ef8e0f68b4937c3c50fa57002077a4d.
RSA verification implementation does not use this code.
James Morris has asked to remove that.Signed-off-by: Dmitry Kasatkin
Requested-by: James Morris
Signed-off-by: James Morris
25 May, 2012
2 commits
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Pull sparc changes from David S. Miller:
"This has the generic strncpy_from_user() implementation architectures
can now use, which we've been developing on linux-arch over the past
few days.For good measure I ran both a 32-bit and a 64-bit glibc testsuite run,
and the latter of which pointed out an adjustment I needed to make to
sparc's user_addr_max() definition. Linus, you were right, STACK_TOP
was not the right thing to use, even on sparc itself :-)From Sam Ravnborg, we have a conversion of sparc32 over to the common
alloc_thread_info_node(), since the aspect which originally blocked
our doing so (sun4c) has been removed."Fix up trivial arch/sparc/Kconfig and lib/Makefile conflicts.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Fix user_addr_max() definition.
lib: Sparc's strncpy_from_user is generic enough, move under lib/
kernel: Move REPEAT_BYTE definition into linux/kernel.h
sparc: Increase portability of strncpy_from_user() implementation.
sparc: Optimize strncpy_from_user() zero byte search.
sparc: Add full proper error handling to strncpy_from_user().
sparc32: use the common implementation of alloc_thread_info_node() -
To use this, an architecture simply needs to:
1) Provide a user_addr_max() implementation via asm/uaccess.h
2) Add "select GENERIC_STRNCPY_FROM_USER" to their arch Kcnfig
3) Remove the existing strncpy_from_user() implementation and symbol
exports their architecture had.Signed-off-by: David S. Miller
Acked-by: David Howells
02 May, 2012
1 commit
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add LPDDR2 data from the JEDEC spec JESD209-2. The data
includes:1. Addressing information for LPDDR2 memories of different
densities and types(S2/S4)
2. AC timing data.This data will useful for memory controller device drivers.
Right now this is used by the TI EMIF SDRAM controller
driver.Signed-off-by: Aneesh V
Reviewed-by: Santosh Shilimkar
Reviewed-by: Benoit Cousson
[santosh.shilimkar@ti.com: Moved to drivers/memory from drivers/misc]
Signed-off-by: Santosh Shilimkar
Tested-by: Lokesh Vutla
Signed-off-by: Greg Kroah-Hartman
21 Apr, 2012
1 commit
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MX23/28 use IP cores which follow a register layout I have first seen on
STMP3xxx SoCs. In this layout, every register actually has four u32:1.) to store a value directly
2.) a SET register where every 1-bit sets the corresponding bit,
others are unaffected
3.) same with a CLR register
4.) same with a TOG (toggle) registerAlso, the 2 MSBs in register 0 are always the same and can be used to reset
the IP core.All this is strictly speaking not mach-specific (but IP core specific) and,
thus, doesn't need to be in mach-mxs/include. At least mx6 also uses IP cores
following this stmp-style. So:Introduce a stmp-style device, put the code and defines for that in a public
place (lib/), and let drivers for stmp-style devices select that code.
To avoid regressions and ease reviewing, the actual code is simply copied from
mach-mxs. It definately wants updates, but those need a seperate patch series.Voila, mach dependency gone, reusable code introduced. Note that I didn't
remove the duplicated code from mach-mxs yet, first the drivers have to be
converted.Signed-off-by: Wolfram Sang
Acked-by: Shawn Guo
Acked-by: Dong Aisheng
29 Mar, 2012
1 commit
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Add help text to the crc32 algorithm selection option in Kconfig.
Signed-off-by: Darrick J. Wong
Reported-by: Stefan Richter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
28 Mar, 2012
1 commit
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Pull UML changes from Richard Weinberger:
"Mostly bug fixes and cleanups"* 'for-linus-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: (35 commits)
um: Update defconfig
um: Switch to large mcmodel on x86_64
MTD: Relax dependencies
um: Wire CONFIG_GENERIC_IO up
um: Serve io_remap_pfn_range()
Introduce CONFIG_GENERIC_IO
um: allow SUBARCH=x86
um: most of the SUBARCH uses can be killed
um: deadlock in line_write_interrupt()
um: don't bother trying to rebuild CHECKFLAGS for USER_OBJS
um: use the right ifdef around exports in user_syms.c
um: a bunch of headers can be killed by using generic-y
um: ptrace-generic.h doesn't need user.h
um: kill HOST_TASK_PID
um: remove pointless include of asm/fixmap.h from asm/pgtable.h
um: asm-offsets.h might as well come from underlying arch...
um: merge processor_{32,64}.h a bit...
um: switch close_chan() to struct line
um: race fix: initialize delayed_work *before* registering IRQ
um: line->have_irq is never checked...
...
25 Mar, 2012
1 commit
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There are situations where CONFIG_HAS_IOMEM is too restrictive.
For example CONFIG_MTD_NAND_NANDSIM depends on CONFIG_HAS_IOMEM
but it works perfectly fine if an architecture without io memory
just includes asm-generic/io.h or implements everything defined in it.
UML is such a corner case.Signed-off-by: Richard Weinberger
24 Mar, 2012
3 commits
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Allow the kernel builder to choose a crc32* algorithm for the kernel.
Signed-off-by: Darrick J. Wong
Cc: Bob Pearson
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Reuse the existing crc32 code to stamp out a crc32c implementation.
Signed-off-by: Darrick J. Wong
Cc: Herbert Xu
Cc: Bob Pearson
Cc: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Replace the unit test provided in crc32.c, which doesn't have a makefile
and doesn't compile with current headers, with a simpler self test
routine that also gives a measure of performance and runs at module init
time. The self test option can be enabled through a configuration
option CONFIG_CRC32_SELFTEST.The test stresses the pre and post loops and is thus not very realistic
since actual uses will likely have addresses and lengths that are at
least 4 byte aligned. However, the main loop is long enough so that the
performance is dominated by that loop.The expected values for crc32_le and crc32_be were generated with the
original version of crc32.c using CRC_BITS_LE = 8 and CRC_BITS_BE = 8.
These values were then used to check all the values of the BITS
parameters in both the original and new versions.The performance results show some variability from run to run in spite
of attempts to both warm the cache and reduce the amount of OS noise by
limiting interrutps during the test. To get comparable results and to
analyse options wrt performance the best time reported over a small
sample of runs has been taken.[djwong@us.ibm.com: Minor changelog tweaks]
Signed-off-by: Bob Pearson
Signed-off-by: Darrick J. Wong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Feb, 2012
1 commit
-
arch: fix ioport mapping on mips,sh
Kevin Cernekee reported that recent cleanup that replaced pci_iomap with
a generic function failed to take into account the differences in io
port handling on mips and sh architectures.Rather than revert the changes reintroducing the code duplication, this
patchset fixes this by adding ability for architectures to override
ioport mapping for pci devices.Signed-off-by: Michael S. Tsirkin
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
sh: use the the PCI channels's io_map_base
mips: use the the PCI controller's io_map_base
lib: add NO_GENERIC_PCI_IOPORT_MAP
02 Feb, 2012
1 commit
-
Both sparc 32-bit's software divide assembler and MPILIB provide
clz_tab[] with identical contents.Break it out into a seperate object file and select it when
SPARC32 or MPILIB is set.Reported-by: Al Viro
Signed-off-by: David S. Miller
Signed-off-by: James Morris
01 Feb, 2012
1 commit
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Some architectures need to override the way
IO port mapping is done on PCI devices.
Supply a generic macro that calls
ioport_map, and make it possible for architectures
to override.Signed-off-by: Michael S. Tsirkin
Acked-by: Arnd Bergmann
18 Jan, 2012
4 commits
-
As modules are expected to select MPILIB, MPILIB_EXTRA, and SIGNATURE,
removed Kconfig prompts.Requested-by: Linus Torvalds
Signed-off-by: Dmitry Kasatkin
Signed-off-by: James Morris -
It was reported that description of the MPILIB_EXTRA is confusing.
Indeed it was copy-paste typo. It is fixed here.Reported-by: Valdis Kletnieks
Signed-off-by: Dmitry Kasatkin
Signed-off-by: James Morris -
Randy Dunlap reported build break:
ERROR: "crypto_alloc_shash" [lib/digsig.ko] undefined!
ERROR: "crypto_shash_final" [lib/digsig.ko] undefined!
ERROR: "crypto_shash_update" [lib/digsig.ko] undefined!
ERROR: "crypto_destroy_tfm" [lib/digsig.ko] undefined!Added CRYPTO dependency and selected SHA1 algorithm.
Reported-by: Randy Dunlap
Signed-off-by: Dmitry Kasatkin
Signed-off-by: James Morris -
It was reported that DIGSIG is confusing name for digital signature
module. It was suggested to rename DIGSIG to SIGNATURE.Requested-by: Linus Torvalds
Suggested-by: Pavel Machek
Signed-off-by: Dmitry Kasatkin
Signed-off-by: James Morris
11 Jan, 2012
2 commits
-
* 'for-linus' of git://selinuxproject.org/~jmorris/linux-security: (32 commits)
ima: fix invalid memory reference
ima: free duplicate measurement memory
security: update security_file_mmap() docs
selinux: Casting (void *) value returned by kmalloc is useless
apparmor: fix module parameter handling
Security: tomoyo: add .gitignore file
tomoyo: add missing rcu_dereference()
apparmor: add missing rcu_dereference()
evm: prevent racing during tfm allocation
evm: key must be set once during initialization
mpi/mpi-mpow: NULL dereference on allocation failure
digsig: build dependency fix
KEYS: Give key types their own lockdep class for key->sem
TPM: fix transmit_cmd error logic
TPM: NSC and TIS drivers X86 dependency fix
TPM: Export wait_for_stat for other vendor specific drivers
TPM: Use vendor specific function for status probe
tpm_tis: add delay after aborting command
tpm_tis: Check return code from getting timeouts/durations
tpm: Introduce function to poll for result of self test
...Fix up trivial conflict in lib/Makefile due to addition of CONFIG_MPI
and SIGSIG next to CONFIG_DQL addition. -
lib: use generic pci_iomap on all architectures
Many architectures don't want to pull in iomap.c,
so they ended up duplicating pci_iomap from that file.
That function isn't trivial, and we are going to modify it
https://lkml.org/lkml/2011/11/14/183
so the duplication hurts.This reduces the scope of the problem significantly,
by moving pci_iomap to a separate file and
referencing that from all architectures.* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
alpha: drop pci_iomap/pci_iounmap from pci-noop.c
mn10300: switch to GENERIC_PCI_IOMAP
mn10300: add missing __iomap markers
frv: switch to GENERIC_PCI_IOMAP
tile: switch to GENERIC_PCI_IOMAP
tile: don't panic on iomap
sparc: switch to GENERIC_PCI_IOMAP
sh: switch to GENERIC_PCI_IOMAP
powerpc: switch to GENERIC_PCI_IOMAP
parisc: switch to GENERIC_PCI_IOMAP
mips: switch to GENERIC_PCI_IOMAP
microblaze: switch to GENERIC_PCI_IOMAP
arm: switch to GENERIC_PCI_IOMAP
alpha: switch to GENERIC_PCI_IOMAP
lib: add GENERIC_PCI_IOMAP
lib: move GENERIC_IOMAP to lib/KconfigFix up trivial conflicts due to changes nearby in arch/{m68k,score}/Kconfig
09 Jan, 2012
1 commit
-
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (53 commits)
Kconfig: acpi: Fix typo in comment.
misc latin1 to utf8 conversions
devres: Fix a typo in devm_kfree comment
btrfs: free-space-cache.c: remove extra semicolon.
fat: Spelling s/obsolate/obsolete/g
SCSI, pmcraid: Fix spelling error in a pmcraid_err() call
tools/power turbostat: update fields in manpage
mac80211: drop spelling fix
types.h: fix comment spelling for 'architectures'
typo fixes: aera -> area, exntension -> extension
devices.txt: Fix typo of 'VMware'.
sis900: Fix enum typo 'sis900_rx_bufer_status'
decompress_bunzip2: remove invalid vi modeline
treewide: Fix comment and string typo 'bufer'
hyper-v: Update MAINTAINERS
treewide: Fix typos in various parts of the kernel, and fix some comments.
clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR
gpio: Kconfig: drop unknown symbol 'CS5535_GPIO'
leds: Kconfig: Fix typo 'D2NET_V2'
sound: Kconfig: drop unknown symbol ARCH_CLPS7500
...Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new
kconfig additions, close to removed commented-out old ones)
30 Nov, 2011
1 commit
-
Implementation of dynamic queue limits (dql). This is a libary which
allows a queue limit to be dynamically managed. The goal of dql is
to set the queue limit, number of objects to the queue, to be minimized
without allowing the queue to be starved.dql would be used with a queue which has these properties:
1) Objects are queued up to some limit which can be expressed as a
count of objects.
2) Periodically a completion process executes which retires consumed
objects.
3) Starvation occurs when limit has been reached, all queued data has
actually been consumed but completion processing has not yet run,
so queuing new data is blocked.
4) Minimizing the amount of queued data is desirable.A canonical example of such a queue would be a NIC HW transmit queue.
The queue limit is dynamic, it will increase or decrease over time
depending on the workload. The queue limit is recalculated each time
completion processing is done. Increases occur when the queue is
starved and can exponentially increase over successive intervals.
Decreases occur when more data is being maintained in the queue than
needed to prevent starvation. The number of extra objects, or "slack",
is measured over successive intervals, and to avoid hysteresis the
limit is only reduced by the miminum slack seen over a configurable
time period.dql API provides routines to manage the queue:
- dql_init is called to intialize the dql structure
- dql_reset is called to reset dynamic values
- dql_queued called when objects are being enqueued
- dql_avail returns availability in the queue
- dql_completed is called when objects have be consumed in the queueConfiguration consists of:
- max_limit, maximum limit
- min_limit, minimum limit
- slack_hold_time, time to measure instances of slack before reducing
queue limitSigned-off-by: Tom Herbert
Acked-by: Eric Dumazet
Signed-off-by: David S. Miller
29 Nov, 2011
1 commit
-
Many architectures want a generic pci_iomap but
not the rest of iomap.c. Split that to a separate .c
file and add a new config symbol. select automatically
by GENERIC_IOMAP.Signed-off-by: Michael S. Tsirkin
25 Nov, 2011
1 commit
-
define GENERIC_IOMAP in a central location
instead of all architectures. This will be helpful
for the follow-up patch which makes it select
other configs. Code is also a bit shorter this way.Signed-off-by: Michael S. Tsirkin
22 Nov, 2011
1 commit
-
Fix build errors by adding Kconfig dependency on KEYS.
CRYPTO dependency removed.CC security/integrity/digsig.o
security/integrity/digsig.c: In function ?integrity_digsig_verify?:
security/integrity/digsig.c:38:4: error: implicit declaration of function ?request_key?
security/integrity/digsig.c:38:17: error: ?key_type_keyring? undeclared (first use in this function)
security/integrity/digsig.c:38:17: note: each undeclared identifier is reported only once for each function it appears in
make[2]: *** [security/integrity/digsig.o] Error 1Reported-by: Randy Dunlap
Signed-off-by: Dmitry Kasatkin
Signed-off-by: James Morris