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2011-01-05[S390] vmur: add support for irq statisticsHeiko Carstens
Add support for VMUR I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] tape: add support for irq statisticsHeiko Carstens
Add support for ccw based tape I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] 3270: add support for irq statisticsHeiko Carstens
Add support for 3270 I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] 3215: add support for irq statisticsHeiko Carstens
Add support for 3215 I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] dasd: add support for irq statisticsHeiko Carstens
Add support for DASD I/O interrupt statistics in /proc/interrupts. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] qdio: add qdio interrupts to interrupt statisticsJan Glauber
Count traditional qdio interrupts and adapter interrupts for qdio in the interrupt statistics. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] irq: have detailed statistics for interrupt typesHeiko Carstens
Up to now /proc/interrupts only has statistics for external and i/o interrupts but doesn't split up them any further. This patch adds a line for every single interrupt source so that it is possible to easier tell what the machine is/was doing. Part of the output now looks like this; CPU0 CPU2 CPU4 EXT: 3898 4232 2305 I/O: 782 315 245 CLK: 1029 1964 727 [EXT] Clock Comparator IPI: 2868 2267 1577 [EXT] Signal Processor TMR: 0 0 0 [EXT] CPU Timer TAL: 0 0 0 [EXT] Timing Alert PFL: 0 0 0 [EXT] Pseudo Page Fault [...] NMI: 0 1 1 [NMI] Machine Checks Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] time: let local_tick_enable/disable() reprogram the clock comparatorHeiko Carstens
Let local_tick_enable/disable() reprogram the clock comparator so the function names make semantically more sense. Also that way the functions are more symmetric since normally each local_tick_enable() call usually would have a subsequent call to set_clock_comparator() anyway. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] time: move local_tick_enable()/disable() to timex.hHeiko Carstens
Move the two functions to timex.h where they make more sense than in hardirq.h. No functional change. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] add kprobes annotationsMartin Schwidefsky
Add kprobes annotations to get the massive 'probe kernel.function("*") {}' stress test working. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: coding styleMartin Schwidefsky
Correct some minor coding style issues. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: restructure handler functionMartin Schwidefsky
Restructure the kprobe breakpoint handler function. Add comments to make it more comprehensible and add a sanity check for re-entering kprobes. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: jprobe save and restoreMartin Schwidefsky
Register %r14 and %r15 are already stored in jprobe_saved_regs, no need to store them a second time in jprobe_saved_r14 / jprobe_saved_r15. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: insn slotsMartin Schwidefsky
The s390 architecture can execute code on kmalloc/vmalloc memory. No need for the __ARCH_WANT_KPROBES_INSN_SLOT detour. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: activation and deactivationMartin Schwidefsky
Replace set_current_kprobe/reset_current_kprobe/save_previous_kprobe/ restore_previous_kprobe with a simpler scheme push_kprobe/pop_kprobe. The mini kprobes stack can store up to two active kprobes. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: instruction fixupMartin Schwidefsky
Determine instruction fixup details in resume_execution, no need to do it beforehand. Remove fixup, ilen and reg from arch_specific_insn. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: instruction swapMartin Schwidefsky
Move the definition of the helper structure ins_replace_args to the only place where it is used and drop the old member as it is not needed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: single step cleanupMartin Schwidefsky
The saved interrupt mask and the saved control registers are only relevant while single stepping is set up. A secondary kprobe while kprobe single stepping is active may not occur. That makes is safe to remove the save and restore of kprobe_saved_imask / kprobe_save_ctl from save_previous_kprobe and restore_previous_kprobe. Move all single step related code to two functions, enable_singlestep and disable_singlestep. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] kprobes: single stepped breakpointMartin Schwidefsky
Remove special case of a kprobe on a breakpoint while a relocated instruction is single stepped. The only instruction that may cause a fault while kprobe single stepping is active is the relocated instruction. There is no kprobe on the instruction slot retrieved with get_insn_slot(). Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05[S390] cleanup s390 KconfigMartin Schwidefsky
Make use of def_bool and def_tristate where possible and add sensible defaults to the config symbols where applicable. This shortens the defconfig file by another ~40 lines. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-03Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: pxa: fix page table corruption on resume ARM: it8152: add IT8152_LAST_IRQ definition to fix build error ARM: pxa: PXA_ESERIES depends on FB_W100. ARM: 6605/1: Add missing include "asm/memory.h" ARM: 6540/1: Stop irqsoff trace on return to user ARM: 6537/1: update Nomadik, U300 and Ux500 maintainers ARM: 6536/1: Add missing SZ_{32,64,128} ARM: fix cache-feroceon-l2 after stack based kmap_atomic() ARM: fix cache-xsc3l2 after stack based kmap_atomic() ARM: get rid of kmap_high_l1_vipt() ARM: smp: avoid incrementing mm_users on CPU startup ARM: pxa: PXA_ESERIES depends on FB_W100.
2011-01-03arch/mn10300/kernel/irq.c: fix buildAndrew Morton
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=25702 Reported-by: Martin Ettl <ettl.martin@gmx.de> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-03Merge branch 'fix' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
2011-01-03ARM: pxa: fix page table corruption on resumeAric D. Blumer
Before this patch, the following error would sometimes occur after a resume on pxa3xx: /path/to/mm/memory.c:144: bad pmd 8040542e. The problem was that a temporary page table mapping was being improperly restored. The PXA3xx resume code creates a temporary mapping of resume_turn_on_mmu to avoid a prefetch abort. The pxa3xx_resume_after_mmu code requires that the r1 register holding the address of this mapping not be modified, however, resume_turn_on_mmu does modify it. It is mostly correct in that r1 receives the base table address, but it may also get other bits in 13:0. This results in pxa3xx_resume_after_mmu restoring the original mapping to the wrong place, corrupting memory and leaving the temporary mapping in place. Signed-off-by: Matt Reimer <mreimer@sdgsystems.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-01-03ARM: it8152: add IT8152_LAST_IRQ definition to fix build errorMike Rapoport
The commit 6ac6b817f3f4c23c5febd960d8deb343e13af5f3 (ARM: pxa: encode IRQ number into .nr_irqs) removed definition of ITE_LAST_IRQ which caused the following build error: CC arch/arm/common/it8152.o arch/arm/common/it8152.c: In function 'it8152_init_irq': arch/arm/common/it8152.c:86: error: 'IT8152_LAST_IRQ' undeclared (first use in this function) arch/arm/common/it8152.c:86: error: (Each undeclared identifier is reported only once arch/arm/common/it8152.c:86: error: for each function it appears in.) make[2]: *** [arch/arm/common/it8152.o] Error 1 Defining the IT8152_LAST_IRQ in the arch/arm/include/hardware/it8152.c fixes the build. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-01-03ARM: pxa: PXA_ESERIES depends on FB_W100.Lennert Buytenhek
As arch/arm/mach-pxa/eseries.c references w100fb_gpio_{read,write}() directly. Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2011-01-03arch/x86/oprofile/op_model_amd.c: Perform initialisation on a single CPURobert Richter
Disable preemption in init_ibs(). The function only checks the ibs capabilities and sets up pci devices (if necessary). It runs only on one cpu but operates with the local APIC and some MSRs, thus it is better to disable preemption. [ 7.034377] BUG: using smp_processor_id() in preemptible [00000000] code: modprobe/483 [ 7.034385] caller is setup_APIC_eilvt+0x155/0x180 [ 7.034389] Pid: 483, comm: modprobe Not tainted 2.6.37-rc1-20101110+ #1 [ 7.034392] Call Trace: [ 7.034400] [<ffffffff812a2b72>] debug_smp_processor_id+0xd2/0xf0 [ 7.034404] [<ffffffff8101e985>] setup_APIC_eilvt+0x155/0x180 [ ... ] Addresses https://bugzilla.kernel.org/show_bug.cgi?id=22812 Reported-by: <atswartz@gmail.com> Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: oprofile-list@lists.sourceforge.net <oprofile-list@lists.sourceforge.net> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Dan Carpenter <error27@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: <stable@kernel.org> [2.6.37.x] LKML-Reference: <20110103111514.GM4739@erda.amd.com> [ small cleanups ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-01-03ARM: 6605/1: Add missing include "asm/memory.h"Axel Lin
This patch fixes below build error by adding the missing asm/memory.h, which is needed for arch_is_coherent(). $ make pxa3xx_defconfig; make CC init/do_mounts_rd.o In file included from include/linux/list_bl.h:5, from include/linux/rculist_bl.h:7, from include/linux/dcache.h:7, from include/linux/fs.h:381, from init/do_mounts_rd.c:3: include/linux/bit_spinlock.h: In function 'bit_spin_unlock': include/linux/bit_spinlock.h:61: error: implicit declaration of function 'arch_is_coherent' make[1]: *** [init/do_mounts_rd.o] Error 1 make: *** [init] Error 2 Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-02Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: i8259: initialize isr_ack KVM: MMU: Fix incorrect direct gfn for unpaged mode shadow
2011-01-02KVM: i8259: initialize isr_ackAvi Kivity
isr_ack is never initialized. So, until the first PIC reset, interrupts may fail to be injected. This can cause Windows XP to fail to boot, as reported in the fallout from the fix to https://bugzilla.kernel.org/show_bug.cgi?id=21962. Reported-and-tested-by: Nicolas Prochazka <prochazka.nicolas@gmail.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-12-29KVM: MMU: Fix incorrect direct gfn for unpaged mode shadowAvi Kivity
We use the physical address instead of the base gfn for the four PAE page directories we use in unpaged mode. When the guest accesses an address above 1GB that is backed by a large host page, a BUG_ON() in kvm_mmu_set_gfn() triggers. Resolves: https://bugzilla.kernel.org/show_bug.cgi?id=21962 Reported-and-tested-by: Nicolas Prochazka <prochazka.nicolas@gmail.com> KVM-Stable-Tag. Signed-off-by: Avi Kivity <avi@redhat.com>
2010-12-28Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/microcode: Fix double vfree() and remove redundant pointer checks before vfree()
2010-12-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: Fix re-probing with PM_POST_RESTORE notification mmc: atmel-mci: fix multiblock SDIO transfers mmc: at91_mci: fix multiblock SDIO transfers
2010-12-28ARM: fix IXP4xx build failureImre Kaloz
arm: export dma_set_coherent_mask While a regression was fixed with commit 710224fa2750cf (arm: fix "arm: fix pci_set_consistent_dma_mask for dmabounce devices"), a new one was introduced as dma_set_coherent_mask wasn't exported for modules. This patch takes care for this issue. Signed-off-by: Imre Kaloz <kaloz@openwrt.org> Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-27Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: intc: Initialize radix tree gfp mask explicitly. sh: Fix up SH7201 clkfwk build. sh: mach-se: Fix up SE7206 build. sh: Fix up SH4-202 clkfwk build.
2010-12-27x86/microcode: Fix double vfree() and remove redundant pointer checks before ↵Jesper Juhl
vfree() In arch/x86/kernel/microcode_intel.c::generic_load_microcode() we have this: while (leftover) { ... if (get_ucode_data(mc, ucode_ptr, mc_size) || microcode_sanity_check(mc) < 0) { vfree(mc); break; } ... } if (mc) vfree(mc); This will cause a double free of 'mc'. This patch fixes that by just removing the vfree() call in the loop since 'mc' will be freed nicely just after we break out of the loop. There's also a second change in the patch. I noticed a lot of checks for pointers being NULL before passing them to vfree(). That's completely redundant since vfree() deals gracefully with being passed a NULL pointer. Removing the redundant checks yields a nice size decrease for the object file. Size before the patch: text data bss dec hex filename 4578 240 1032 5850 16da arch/x86/kernel/microcode_intel.o Size after the patch: text data bss dec hex filename 4489 240 984 5713 1651 arch/x86/kernel/microcode_intel.o Signed-off-by: Jesper Juhl <jj@chaosbits.net> Acked-by: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Cc: Shaohua Li <shaohua.li@intel.com> LKML-Reference: <alpine.LNX.2.00.1012251946100.10759@swampdragon.chaosbits.net> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-12-24Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
* 'merge' of git://git.secretlab.ca/git/linux-2.6: spi/mpc52xx-spi: fix annotation for remove()-pointer spi/fsl_espi: fix wrong setting of the address in the command buffer spi/fsl_espi: change the read behaviour of the SPIRF of/i2c: Fix request module by alias powerpc/mpc5200: include fs.h in mpc52xx_gpt.c
2010-12-24ARM: 6540/1: Stop irqsoff trace on return to userTodd Android Poynor
If the irqsoff tracer is in use, stop tracing the interrupt disable interval when returning to userspace. Tracing userspace execution time as interrupts disabled time is not helpful for kernel performance analysis purposes. Only do so if the irqsoff tracer is enabled, to avoid overhead for lockdep, which doesn't care. Signed-off-by: Todd Poynor <toddpoynor@google.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-24ARM: 6536/1: Add missing SZ_{32,64,128}Stephen Warren
... and also remove misleading comment stating that this header is auto-generated. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Uwe Kleine-Knig <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-24sh: Fix up SH7201 clkfwk build.Paul Mundt
The master clock initialization for SH7201 was wholly bogus. Users of the legacy API must initialize the clock rate through the struct clk itself rather than returning the clock frequency. Given that the init function itself is void, returning the frequency isn't terribly effective. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-24sh: mach-se: Fix up SE7206 build.Paul Mundt
With some recent tidying of duplicate register definitions the se7206 IRQ code broke: arch/sh/boards/mach-se/7206/irq.c: error: 'INTC_ICR' undeclared (first use in this function) arch/sh/boards/mach-se/7206/irq.c: error: (Each undeclared identifier is reported only once arch/sh/boards/mach-se/7206/irq.c: error: for each function it appears in.) Fix it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-24sh: Fix up SH4-202 clkfwk build.Paul Mundt
Some of the SH4-202 code was overlooked in the set_rate() API conversion, resulting in: arch/sh/kernel/cpu/sh4/clock-sh4-202.c: error: too many arguments to function 'clk->ops->set_rate' Fix it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-12-23Merge branches 'perf-fixes-for-linus' and 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf probe: Fix to support libdwfl older than 0.148 perf tools: Fix lazy wildcard matching perf buildid-list: Fix error return for success perf buildid-cache: Fix symbolic link handling perf symbols: Stop using vmlinux files with no symbols perf probe: Fix use of kernel image path given by 'k' option * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, kexec: Limit the crashkernel address appropriately
2010-12-23powerpc/mpc5200: include fs.h in mpc52xx_gpt.cWolfram Sang
Fix build errors like these (from a randconfig and my defconfig for a custom board): src/arch/powerpc/platforms/52xx/mpc52xx_gpt.c:549: error: dereferencing pointer to incomplete type: 1 errors in 1 logs src/arch/powerpc/platforms/52xx/mpc52xx_gpt.c:636: error: implicit declaration of function 'nonseekable_open': 1 errors in 1 logs src/arch/powerpc/platforms/52xx/mpc52xx_gpt.c:657: error: variable 'mpc52xx_wdt_fops' has initializer but incomplete type: 1 errors in 1 logs src/arch/powerpc/platforms/52xx/mpc52xx_gpt.c:658: error: excess elements in struct initializer: 1 errors in 1 logs src/arch/powerpc/platforms/52xx/mpc52xx_gpt.c:658: error: unknown field 'owner' specified in initializer: 1 errors in 1 logs ... Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-12-22Merge branch 'fix' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
2010-12-21mmc: at91_mci: fix multiblock SDIO transfersYauhen Kharuzhy
The AT91 MCI has special SDIO transfer types: SDIO block and SDIO byte transfers, but at91_mci driver doesn't use them and handles all SDIO transfers as ordinary MMC block transfers. This causes problems for multiple-block SDIO transfers (in particular for 256-bytes blocks). Fix this situation by checking the opcode for SDIO CMD53 and setting the transfer type in the AT91_MCI_CMDR register properly. This patch was tested with libertas SDIO driver: problem with TX timeouts on big packets was eliminated. Signed-off-by: Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> Cc: <stable@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2010-12-20Merge branch 'rmobile-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: ARM: mach-shmobile: INTC interrupt priority level demux fix ARM: mach-shmobile: fix compile warning in mm/init.c
2010-12-20Merge branch 's5p-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung * 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: S5PV210: update MAX8998 platform data to get rid of WARN() ARM S3C24XX: Fix compilation of PM code for S3C2416 ARM: S3C24XX: Fix CONFIG_S3C_DEV_NAND Kconfig entry
2010-12-20clarify a usage constraint for cnt32_to_63()Nicolas Pitre
The cnt32_to_63 algorithm relies on proper counter data evaluation ordering to work properly. This was missing from the provided documentation. Let's augment the documentation with the missing usage constraint and fix the only instance that got it wrong. Signed-off-by: Nicolas Pitre <nico@fluxnic.net> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-20Merge branch 'kmap_atomic_fixes' of git://git.linaro.org/people/nico/linuxRussell King
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