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Commit 287638b2 authored by Steve French's avatar Steve French
Browse files

Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6

parents f6c43385 a1cc1ba7
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+7 −6
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@@ -73,7 +73,7 @@ The remaining CPU time will be used for user input and other tasks. Because
realtime tasks have explicitly allocated the CPU time they need to perform
their tasks, buffer underruns in the graphics or audio can be eliminated.

NOTE: the above example is not fully implemented as of yet (2.6.25). We still
NOTE: the above example is not fully implemented yet. We still
lack an EDF scheduler to make non-uniform periods usable.


@@ -140,14 +140,15 @@ The other option is:

.o CONFIG_CGROUP_SCHED (aka "Basis for grouping tasks" = "Control groups")

This uses the /cgroup virtual file system and "/cgroup/<cgroup>/cpu.rt_runtime_us"
to control the CPU time reserved for each control group instead.
This uses the /cgroup virtual file system and
"/cgroup/<cgroup>/cpu.rt_runtime_us" to control the CPU time reserved for each
control group instead.

For more information on working with control groups, you should read
Documentation/cgroups/cgroups.txt as well.

Group settings are checked against the following limits in order to keep the configuration
schedulable:
Group settings are checked against the following limits in order to keep the
configuration schedulable:

   \Sum_{i} runtime_{i} / global_period <= global_runtime / global_period

@@ -189,7 +190,7 @@ Implementing SCHED_EDF might take a while to complete. Priority Inheritance is
the biggest challenge as the current linux PI infrastructure is geared towards
the limited static priority levels 0-99. With deadline scheduling you need to
do deadline inheritance (since priority is inversely proportional to the
deadline delta (deadline - now).
deadline delta (deadline - now)).

This means the whole PI machinery will have to be reworked - and that is one of
the most complex pieces of code we have.
+2 −1
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@@ -343,7 +343,8 @@ KBUILD_CPPFLAGS := -D__KERNEL__
KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
		   -fno-strict-aliasing -fno-common \
		   -Werror-implicit-function-declaration \
		   -Wno-format-security
		   -Wno-format-security \
		   -fno-delete-null-pointer-checks
KBUILD_AFLAGS   := -D__ASSEMBLY__

# Read KERNELRELEASE from include/config/kernel.release (if it exists)
+2 −0
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@@ -6,6 +6,8 @@
 *	David Mosberger-Tang <davidm@hpl.hp.com>
 */

#include <linux/types.h>

/* floating point status register: */
#define FPSR_TRAP_VD	(1 << 0)	/* invalid op trap disabled */
#define FPSR_TRAP_DD	(1 << 1)	/* denormal trap disabled */
+1 −0
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@@ -33,6 +33,7 @@
#ifndef _ASM_IA64_XEN_HYPERVISOR_H
#define _ASM_IA64_XEN_HYPERVISOR_H

#include <linux/err.h>
#include <xen/interface/xen.h>
#include <xen/interface/version.h>	/* to compile feature.c */
#include <xen/features.h>		/* to comiple xen-netfront.c */
+8 −0
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@@ -6,6 +6,14 @@ int iommu_detected __read_mostly;
struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);

#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)

static int __init dma_init(void)
{
       dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
}
fs_initcall(dma_init);

struct dma_map_ops *dma_get_ops(struct device *dev)
{
	return dma_ops;
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