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yaml
---
r: 53828
b: refs/heads/master
c: b00742d
h: refs/heads/master
v: v3
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Jeremy Fitzhardinge authored and Andi Kleen committed May 2, 2007
1 parent 33a66c6 commit 5435926
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Showing 6 changed files with 10 additions and 37 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: bbba11c35baaad3f70f32e185a2c1d40d7901fe9
refs/heads/master: b00742d399513a4100c24cc2accefdc1bb1e0b15
14 changes: 0 additions & 14 deletions trunk/include/asm-alpha/percpu.h
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@@ -1,20 +1,6 @@
#ifndef __ALPHA_PERCPU_H
#define __ALPHA_PERCPU_H

/*
* Increase the per cpu area for Alpha so that
* modules using percpu area can load.
*/
#ifdef CONFIG_MODULES
# define PERCPU_MODULE_RESERVE 8192
#else
# define PERCPU_MODULE_RESERVE 0
#endif

#define PERCPU_ENOUGH_ROOM \
(ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \
PERCPU_MODULE_RESERVE)

#include <asm-generic/percpu.h>

#endif /* __ALPHA_PERCPU_H */
10 changes: 0 additions & 10 deletions trunk/include/asm-sparc64/percpu.h
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Expand Up @@ -5,16 +5,6 @@

#ifdef CONFIG_SMP

#ifdef CONFIG_MODULES
# define PERCPU_MODULE_RESERVE 8192
#else
# define PERCPU_MODULE_RESERVE 0
#endif

#define PERCPU_ENOUGH_ROOM \
(ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \
PERCPU_MODULE_RESERVE)

extern void setup_per_cpu_areas(void);

extern unsigned long __per_cpu_base;
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10 changes: 0 additions & 10 deletions trunk/include/asm-x86_64/percpu.h
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Expand Up @@ -11,16 +11,6 @@

#include <asm/pda.h>

#ifdef CONFIG_MODULES
# define PERCPU_MODULE_RESERVE 8192
#else
# define PERCPU_MODULE_RESERVE 0
#endif

#define PERCPU_ENOUGH_ROOM \
(ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \
PERCPU_MODULE_RESERVE)

#define __per_cpu_offset(cpu) (cpu_pda(cpu)->data_offset)
#define __my_cpu_offset() read_pda(data_offset)

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9 changes: 8 additions & 1 deletion trunk/include/linux/percpu.h
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Expand Up @@ -11,9 +11,16 @@

/* Enough to cover all DEFINE_PER_CPUs in kernel, including modules. */
#ifndef PERCPU_ENOUGH_ROOM
#define PERCPU_ENOUGH_ROOM 32768
#ifdef CONFIG_MODULES
#define PERCPU_MODULE_RESERVE 8192
#else
#define PERCPU_MODULE_RESERVE 0
#endif

#define PERCPU_ENOUGH_ROOM \
(__per_cpu_end - __per_cpu_start + PERCPU_MODULE_RESERVE)
#endif /* PERCPU_ENOUGH_ROOM */

/*
* Must be an lvalue. Since @var must be a simple identifier,
* we force a syntax error here if it isn't.
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2 changes: 1 addition & 1 deletion trunk/kernel/module.c
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Expand Up @@ -430,7 +430,7 @@ static int percpu_modinit(void)
pcpu_size = kmalloc(sizeof(pcpu_size[0]) * pcpu_num_allocated,
GFP_KERNEL);
/* Static in-kernel percpu data (used). */
pcpu_size[0] = -ALIGN(__per_cpu_end-__per_cpu_start, SMP_CACHE_BYTES);
pcpu_size[0] = -(__per_cpu_end-__per_cpu_start);
/* Free room. */
pcpu_size[1] = PERCPU_ENOUGH_ROOM + pcpu_size[0];
if (pcpu_size[1] < 0) {
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