Merge commit 'v2.6.27-rc1' into x86/core

cache width is.

int

dma_mapping_error(dma_addr_t dma_addr)

dma_mapping_error(struct device *dev, dma_addr_t dma_addr)

int

pci_dma_mapping_error(dma_addr_t dma_addr)

pci_dma_mapping_error(struct pci_dev *hwdev, dma_addr_t dma_addr)

In some circumstances dma_map_single and dma_map_page will fail to create

a mapping. A driver can check for these errors by testing the returned

but these are not global address spaces, but separate for each domain.

Different DMA engines may support different number of domains.

We also allocate gaurd pages with each mapping, so we can attempt to catch

We also allocate guard pages with each mapping, so we can attempt to catch

any overflow that might happen.

- For compatibility testing, could use unity map domain for all devices, just

  provide a 1-1 for all useful memory under a single domain for all devices.

- API for paravirt ops for abstracting functionlity for VMM folks.

- API for paravirt ops for abstracting functionality for VMM folks.

references.

16) Sending "git pull" requests  (from Linus emails)

Please write the git repo address and branch name alone on the same line

so that I can't even by mistake pull from the wrong branch, and so

that a triple-click just selects the whole thing.

So the proper format is something along the lines of:

	"Please pull from

		git://jdelvare.pck.nerim.net/jdelvare-2.6 i2c-for-linus

	 to get these changes:"

so that I don't have to hunt-and-peck for the address and inevitably

get it wrong (actually, I've only gotten it wrong a few times, and

checking against the diffstat tells me when I get it wrong, but I'm

just a lot more comfortable when I don't have to "look for" the right

thing to pull, and double-check that I have the right branch-name).

Please use "git diff -M --stat --summary" to generate the diffstat:

the -M enables rename detection, and the summary enables a summary of

new/deleted or renamed files.

With rename detection, the statistics are rather different [...]

because git will notice that a fair number of the changes are renames.

-----------------------------------

SECTION 2 - HINTS, TIPS, AND TRICKS

There are three different groups of fields in the struct taskstats:

1) Common and basic accounting fields

    If CONFIG_TASKSTATS is set, the taskstats inteface is enabled and

    If CONFIG_TASKSTATS is set, the taskstats interface is enabled and

    the common fields and basic accounting fields are collected for

    delivery at do_exit() of a task.

2) Delay accounting fields

                Set active the IRQ edge(s)/level.  This replaces the

                SA1111 INTPOL manipulation, and the set_GPIO_IRQ_edge()

                function.  Type should be one of the following:

                #define IRQT_NOEDGE     (0)

                #define IRQT_RISING     (__IRQT_RISEDGE)

                #define IRQT_FALLING    (__IRQT_FALEDGE)

                #define IRQT_BOTHEDGE   (__IRQT_RISEDGE|__IRQT_FALEDGE)

                #define IRQT_LOW        (__IRQT_LOWLVL)

                #define IRQT_HIGH       (__IRQT_HIGHLVL)

                function.  Type should be one of IRQ_TYPE_xxx defined in

		<linux/irq.h>

3. set_GPIO_IRQ_edge() is obsolete, and should be replaced by set_irq_type.