linux/Documentation
Dan Williams 04ce9ab385 async_xor: permit callers to pass in a 'dma/page scribble' region
async_xor() needs space to perform dma and page address conversions.  In
most cases the code can simply reuse the struct page * array because the
size of the native pointer matches the size of a dma/page address.  In
order to support archs where sizeof(dma_addr_t) is larger than
sizeof(struct page *), or to preserve the input parameters, we utilize a
memory region passed in by the caller.

Since the code is now prepared to handle the case where it cannot
perform address conversions on the stack, we no longer need the
!HIGHMEM64G dependency in drivers/dma/Kconfig.

[ Impact: don't clobber input buffers for address conversions ]

Reviewed-by: Andre Noll <maan@systemlinux.org>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2009-06-03 14:22:28 -07:00
..
ABI Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-02-26 14:43:42 -08:00
DocBook docbook: split kernel-api for device-drivers 2009-02-22 12:21:46 -08:00
PCI PCI: Documentation: fix minor PCIe HOWTO thinko 2009-02-13 13:59:19 -08:00
RCU rcu: documentation 1Q09 update 2009-03-10 15:55:11 -07:00
accounting Documentation/accounting/getdelays.c: fix endless loop 2009-01-15 16:39:37 -08:00
acpi
aoe
arm Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel 2008-12-29 18:08:11 +00:00
auxdisplay
blackfin Blackfin arch: Add document about bfin-gpio 2009-01-07 23:14:38 +08:00
block block: add text file detailing queue/ sysfs files 2009-02-02 13:02:31 +01:00
blockdev
cdrom
cgroups cpuset: various documentation fixes and updates 2009-02-20 17:57:49 -08:00
connector Documentation/connector/cn_test.c: don't use gfp_any() 2009-02-12 16:47:01 -08:00
console
cpu-freq ACPI: cpufreq: Remove deprecated /proc/acpi/processor/../performance proc entries 2009-02-04 00:12:24 -05:00
cpuidle
cris
crypto async_xor: permit callers to pass in a 'dma/page scribble' region 2009-06-03 14:22:28 -07:00
development-process Fix a typo in the development process document. 2009-01-08 16:32:13 -07:00
device-mapper
driver-model PATCH [1/2] Documentation/driver-model/device.txt: fix struct device_attribute 2009-02-22 09:27:15 -08:00
dvb V4L/DVB (10696): Remove outdated README for the flexcop-driver 2009-02-26 22:29:19 -03:00
early-userspace
fault-injection
fb [ARM] pxafb: add support for overlay1 and overlay2 as framebuffer devices 2008-12-29 18:00:04 +08:00
filesystems trivial: fix bad links in the ext2 and ext3 documentation 2009-03-12 16:24:25 -07:00
firmware_class
frv
hwmon hwmon: (lm90) Document support for the MAX6648/6692 chips 2009-03-12 13:36:38 +01:00
i2c
i2o
ia64
ide ide: update warm-plug HOWTO 2009-01-06 17:21:00 +01:00
infiniband
input
ioctl documentation: update header file paths 2009-01-06 15:59:28 -08:00
isdn
ja_JP Sync patch for jp_JP/stable_kernel_rules.txt 2009-01-28 15:55:48 -08:00
kbuild kbuild: fix kbuild.txt typos 2009-01-14 21:42:51 +01:00
kdump
ko_KR
laptops ACPI: thinkpad-acpi: bump up version to 0.22 2009-01-15 13:48:24 -05:00
lguest lguest: disable the FORTIFY for lguest. 2009-01-30 11:34:10 +10:30
m68k
make
mips ide: remove unused CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ 2009-01-14 19:19:03 +01:00
mn10300
mtd
namespaces
netlabel
networking IPv6: add "disable" module parameter support to ipv6.ko 2009-03-04 03:19:08 -08:00
parisc
pcmcia
power
powerpc powerpc/5200: update device tree binding documentation 2009-01-30 08:23:33 -07:00
prctl
s390 documentation: update s390 header file paths 2009-01-06 15:59:28 -08:00
scheduler cgroups: consolidate cgroup documents 2009-01-15 16:39:37 -08:00
scsi [SCSI] cxgb3i: Fix spelling errors in documentation 2009-02-21 20:29:37 -06:00
serial
sh
sound ALSA: hda: Add STAC92HD83XXX_PWR_REF quirk 2009-01-23 08:06:57 +01:00
sparc
spi hwmon: (lm70) Code streamlining and cleanup 2009-01-07 16:37:34 +01:00
sysctl Update of Documentation: vm.txt and proc.txt 2009-01-15 16:39:35 -08:00
telephony
thermal
timers
tracers doc: mmiotrace.txt, buffer size control change 2009-02-15 20:05:13 +01:00
uml
usb Documentation: move DMA-mapping.txt to Doc/PCI/ 2009-01-29 18:19:29 -08:00
video4linux V4L/DVB (10210): Fix a bug on v4lgrab.c 2009-01-29 08:35:37 -02:00
vm mm: remove try_to_munlock from vmscan 2009-01-06 15:59:03 -08:00
w1 w1: send status messages after command processing 2009-01-08 08:31:14 -08:00
watchdog
wimax i2400m: documentation and instructions for usage 2009-01-07 10:00:18 -08:00
x86 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-10 06:13:09 -08:00
zh_CN
00-INDEX
BUG-HUNTING
Changes Documentation/Changes: add required versions for new filesystems 2009-01-29 18:19:30 -08:00
CodingStyle fix emacs indenting howto filename expansion 2009-01-29 18:19:29 -08:00
DMA-API.txt Documentation: move DMA-mapping.txt to Doc/PCI/ 2009-01-29 18:19:29 -08:00
DMA-ISA-LPC.txt
DMA-attributes.txt
DMA-mapping.txt documentation: update header file paths 2009-01-06 15:59:28 -08:00
HOWTO
IO-mapping.txt Documentation: move DMA-mapping.txt to Doc/PCI/ 2009-01-29 18:19:29 -08:00
IPMI.txt
IRQ-affinity.txt
IRQ.txt
Intel-IOMMU.txt
Makefile
ManagementStyle
SAK.txt
SELinux.txt
SM501.txt
SecurityBugs
Smack.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches
VGA-softcursor.txt
applying-patches.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
c2port.txt
cachetlb.txt
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
credentials.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt trivial: fix an -> a typos in documentation and comments 2009-01-06 11:28:07 +01:00
devices.txt
dmaengine.txt async_tx, dmaengine: document channel allocation and api rework 2009-01-05 18:10:19 -07:00
dontdiff
edac.txt
eisa.txt
email-clients.txt
exception.txt
feature-removal-schedule.txt [CPUFREQ] Add p4-clockmod sysfs-ui removal to feature-removal schedule. 2009-03-09 15:14:37 -04:00
ftrace.txt
gpio.txt
highuid.txt
hw_random.txt
ics932s401
initrd.txt
io-mapping.txt
io_ordering.txt
iostats.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt kernel-doc: preferred ending marker and examples 2009-02-11 14:25:36 -08:00
kernel-docs.txt
kernel-parameters.txt Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-02-27 16:43:05 -08:00
keys-request-key.txt
keys.txt
kobject.txt kobject: Make Documentation/kobject.txt a little more coherent. 2009-01-06 10:44:32 -08:00
kprobes.txt kprobes: support probing module __exit function 2009-01-06 15:59:21 -08:00
kref.txt
ldm.txt
leds-class.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
logo.gif
logo.txt
magic-number.txt documentation: update header file paths 2009-01-06 15:59:28 -08:00
markers.txt
mca.txt
md.txt Documentation/md.txt update 2009-03-31 15:18:37 +11:00
memory-barriers.txt
memory-hotplug.txt mm: show node to memory section relationship with symlinks in sysfs 2009-01-06 15:59:00 -08:00
memory.txt
mono.txt
mutex-design.txt
nmi_watchdog.txt
nommu-mmap.txt NOMMU: Make mmap allocation page trimming behaviour configurable. 2009-01-08 12:04:47 +00:00
numastat.txt
oops-tracing.txt
parport-lowlevel.txt
parport.txt
pi-futex.txt
pnp.txt
preempt-locking.txt
printk-formats.txt
prio_tree.txt
rbtree.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
svga.txt
sysfs-rules.txt
sysrq.txt sysrq documentation: document why the command header only is shown 2009-01-15 16:39:36 -08:00
tracepoints.txt
unaligned-memory-access.txt
unicode.txt
unshare.txt
video-output.txt
volatile-considered-harmful.txt
voyager.txt
zorro.txt