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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 20:10:04 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 20:10:04 -0500
commitf94181da7192f4ed8ccb1b633ea4ce56954df130 (patch)
tree2e28785f2df447573a11fbdd611dc19eb3fcb794
parent932adbed6d99cc373fc3433d701b3a594fea872c (diff)
parentfdbc0450df12cc9cb397f3497db4b0cad7c1a8ff (diff)
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: rcu: fix rcutorture bug rcu: eliminate synchronize_rcu_xxx macro rcu: make treercu safe for suspend and resume rcu: fix rcutree grace-period-latency bug on small systems futex: catch certain assymetric (get|put)_futex_key calls futex: make futex_(get|put)_key() calls symmetric locking, percpu counters: introduce separate lock classes swiotlb: clean up EXPORT_SYMBOL usage swiotlb: remove unnecessary declaration swiotlb: replace architecture-specific swiotlb.h with linux/swiotlb.h swiotlb: add support for systems with highmem swiotlb: store phys address in io_tlb_orig_addr array swiotlb: add hwdev to swiotlb_phys_to_bus() / swiotlb_sg_to_bus()
Diffstat
-rw-r--r--arch/ia64/include/asm/swiotlb.h39
-rw-r--r--arch/x86/include/asm/swiotlb.h38
-rw-r--r--arch/x86/kernel/pci-swiotlb_64.c2
-rw-r--r--include/linux/percpu_counter.h14
-rw-r--r--include/linux/rcupdate.h12
-rw-r--r--include/linux/swiotlb.h3
-rw-r--r--kernel/futex.c72
-rw-r--r--kernel/rcupdate.c11
-rw-r--r--kernel/rcupreempt.c11
-rw-r--r--kernel/rcutorture.c18
-rw-r--r--kernel/rcutree.c13
-rw-r--r--lib/percpu_counter.c18
-rw-r--r--lib/proportions.c6
-rw-r--r--lib/swiotlb.c237
-rw-r--r--mm/backing-dev.c2
15 files changed, 195 insertions, 301 deletions
diff --git a/arch/ia64/include/asm/swiotlb.h b/arch/ia64/include/asm/swiotlb.h
index fb79423834d0..dcbaea7ce128 100644
--- a/arch/ia64/include/asm/swiotlb.h
+++ b/arch/ia64/include/asm/swiotlb.h
@@ -2,44 +2,7 @@
2#define ASM_IA64__SWIOTLB_H 2#define ASM_IA64__SWIOTLB_H
3 3
4#include <linux/dma-mapping.h> 4#include <linux/dma-mapping.h>
5 5#include <linux/swiotlb.h>
6/* SWIOTLB interface */
7
8extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr,
9 size_t size, int dir);
10extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
11 dma_addr_t *dma_handle, gfp_t flags);
12extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
13 size_t size, int dir);
14extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
15 dma_addr_t dev_addr,
16 size_t size, int dir);
17extern void swiotlb_sync_single_for_device(struct device *hwdev,
18 dma_addr_t dev_addr,
19 size_t size, int dir);
20extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev,
21 dma_addr_t dev_addr,
22 unsigned long offset,
23 size_t size, int dir);
24extern void swiotlb_sync_single_range_for_device(struct device *hwdev,
25 dma_addr_t dev_addr,
26 unsigned long offset,
27 size_t size, int dir);
28extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
29 struct scatterlist *sg, int nelems,
30 int dir);
31extern void swiotlb_sync_sg_for_device(struct device *hwdev,
32 struct scatterlist *sg, int nelems,
33 int dir);
34extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
35 int nents, int direction);
36extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
37 int nents, int direction);
38extern int swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
39extern void swiotlb_free_coherent(struct device *hwdev, size_t size,
40 void *vaddr, dma_addr_t dma_handle);
41extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
42extern void swiotlb_init(void);
43 6
44extern int swiotlb_force; 7extern int swiotlb_force;
45 8
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
index 51fb2c76ad74..b9e4e20174fb 100644
--- a/arch/x86/include/asm/swiotlb.h
+++ b/arch/x86/include/asm/swiotlb.h
@@ -1,46 +1,10 @@
1#ifndef _ASM_X86_SWIOTLB_H 1#ifndef _ASM_X86_SWIOTLB_H
2#define _ASM_X86_SWIOTLB_H 2#define _ASM_X86_SWIOTLB_H
3 3
4#include <asm/dma-mapping.h> 4#include <linux/swiotlb.h>
5 5
6/* SWIOTLB interface */ 6/* SWIOTLB interface */
7 7
8extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr,
9 size_t size, int dir);
10extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
11 dma_addr_t *dma_handle, gfp_t flags);
12extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
13 size_t size, int dir);
14extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
15 dma_addr_t dev_addr,
16 size_t size, int dir);
17extern void swiotlb_sync_single_for_device(struct device *hwdev,
18 dma_addr_t dev_addr,
19 size_t size, int dir);
20extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev,
21 dma_addr_t dev_addr,
22 unsigned long offset,
23 size_t size, int dir);
24extern void swiotlb_sync_single_range_for_device(struct device *hwdev,
25 dma_addr_t dev_addr,
26 unsigned long offset,
27 size_t size, int dir);
28extern void swiotlb_sync_sg_for_cpu(struct device *hwdev,
29 struct scatterlist *sg, int nelems,
30 int dir);
31extern void swiotlb_sync_sg_for_device(struct device *hwdev,
32 struct scatterlist *sg, int nelems,
33 int dir);
34extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
35 int nents, int direction);
36extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
37 int nents, int direction);
38extern int swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
39extern void swiotlb_free_coherent(struct device *hwdev, size_t size,
40 void *vaddr, dma_addr_t dma_handle);
41extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
42extern void swiotlb_init(void);
43
44extern int swiotlb_force; 8extern int swiotlb_force;
45 9
46#ifdef CONFIG_SWIOTLB 10#ifdef CONFIG_SWIOTLB
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c
index 8cba3749a511..d59c91747665 100644
--- a/arch/x86/kernel/pci-swiotlb_64.c
+++ b/arch/x86/kernel/pci-swiotlb_64.c
@@ -23,7 +23,7 @@ void *swiotlb_alloc(unsigned order, unsigned long nslabs)
23 return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order); 23 return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order);
24} 24}
25 25
26dma_addr_t swiotlb_phys_to_bus(phys_addr_t paddr) 26dma_addr_t swiotlb_phys_to_bus(struct device *hwdev, phys_addr_t paddr)
27{ 27{
28 return paddr; 28 return paddr;
29} 29}
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index 99de7a31bab8..a7684a513994 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -26,8 +26,16 @@ struct percpu_counter {
26 26
27extern int percpu_counter_batch; 27extern int percpu_counter_batch;
28 28
29int percpu_counter_init(struct percpu_counter *fbc, s64 amount); 29int __percpu_counter_init(struct percpu_counter *fbc, s64 amount,
30int percpu_counter_init_irq(struct percpu_counter *fbc, s64 amount); 30 struct lock_class_key *key);
31
32#define percpu_counter_init(fbc, value) \
33 ({ \
34 static struct lock_class_key __key; \
35 \
36 __percpu_counter_init(fbc, value, &__key); \
37 })
38
31void percpu_counter_destroy(struct percpu_counter *fbc); 39void percpu_counter_destroy(struct percpu_counter *fbc);
32void percpu_counter_set(struct percpu_counter *fbc, s64 amount); 40void percpu_counter_set(struct percpu_counter *fbc, s64 amount);
33void __percpu_counter_add(struct percpu_counter *fbc, s64 amount, s32 batch); 41void __percpu_counter_add(struct percpu_counter *fbc, s64 amount, s32 batch);
@@ -81,8 +89,6 @@ static inline int percpu_counter_init(struct percpu_counter *fbc, s64 amount)
81 return 0; 89 return 0;
82} 90}
83 91
84#define percpu_counter_init_irq percpu_counter_init
85
86static inline void percpu_counter_destroy(struct percpu_counter *fbc) 92static inline void percpu_counter_destroy(struct percpu_counter *fbc)
87{ 93{
88} 94}
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index 1168fbcea8d4..921340a7b71c 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -204,18 +204,6 @@ struct rcu_synchronize {
204 204
205extern void wakeme_after_rcu(struct rcu_head *head); 205extern void wakeme_after_rcu(struct rcu_head *head);
206 206
207#define synchronize_rcu_xxx(name, func) \
208void name(void) \
209{ \
210 struct rcu_synchronize rcu; \
211